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Service Manual TSG 601 Serial Digital Generator - NSCA TRA-CAL

1. ROWO ROWO ROW 10 4 4 11 COLO 12 o o o Es ON KEY 13 2 81 522 521 520 19 1 14 15 TEST SIGNAL ID ON OFF OUTPUT AMPL P L a r r or Gr M M COLS 18 OPTION MENU ID MENU OUTPUT MENU con 49 5 4 5 2 ROW1 82 523 536 535 518 CRC ON OFF AUDIO ON OFF RECALL 1 m ON KEY T VIN CRC MENU AUDIO MENU STORE sat ON ROW2 3 24 37 34 17 SHIFT A B D SHIFT LOCK ROW3 S4 525 538 33 16 H I pu a zu ES ROW4 5 26 39 532 815 J K L M N 1 2 3 ROWS 56 27 40 31 14 5 4 5 6 ROW6 87 528 529 530 13 U v w x j 7 8 9 ROW7 S8 59 510 11 12 Y Z SP LOCK RC cA OUT 0 BLANK COL4 COL2 COL1 COLO KEYPAD A2 KEY BOARD A2 MAIN BOARD 1 Board and Schematic lt 1 gt Component Locator Chart A B C D E F G With cross references to schematic diagrams 1 2 and 3 The schematic diagram has an alphanumeric grid to assist in locating parts within that diagram Use the lookup chart below for A3 Main Board Schematic lt 1 gt x 1 34i 2S4a Partial assembly A1 also shown on schematics 2 and 3 1 Comp Diag Diag Bd Com
2. Continuous Vert Mag Wim a a ee eee 200 mV Vert Pos Wim OV Main Size vi ian ce ate dy Ene 10 us POS sb IRR Me ERR EY S 08 Impedance ea 500 DC BW ea en 1 GHz TRIGGER MENU Trigger 2 2 essen lern Main Source Description 11 Level M reale 0 Time Holdoff M 510 ns Mode 5 ed bte bed Auto Coupling iiu kde cad ve Duis a i OE DC Slope 5 ee ase s Ad ME SE WINDOW MENU Vertical Mag 100 mV Vertical Pos Wfm 0 Window Size 500 ps div Window Position 40 001 us TSG 601 Service Manual Performance Verification and Adjustment Procedures TSG 601 Service Manual b CURSORS MENU Vertical Bars Cursor 1 esos accor Shs sten 40 00 us Eursor 2 scp va ta d 40 00 us Ade uuruuu Lee ees 498 4 ps cursors set so eye crossing is in the center Set the TSG 601 output amplitude to 800 mV Verify that the eye crossing stays within the cursors 5 Cable Simulator Return Loss Specification 20 dB from 5 MHz to 270 MHz a Connect a precision 50 cable from the spectrum analyzer RF Input to the RF Output on the high frequency RF Bridge Connect a pre
3. 1 16 Table 1 12 5 Step Staircase and Modulated 5 Step Timing 1 17 Table 1 13 Active Picture Markers Timing 1 27 Table 3 1 Circuit Addresses 3 2 Table 3 2 Low Battery Voltage Thresholds 3 4 Table 4 1 Required Equipment 4 1 X TSG 601 Service Manual General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it Only qualified personnel should perform service procedures Safety Terms and Symbols Terms in This Manual A A Terms on the Product TSG 601 Service Manual These terms may appear in this manual WARNING Warning statements identify conditions or practices that could result in injury or loss of life CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property These terms may appear on the product Danger indicates an injury hazard immediately accessible as you read the marking Warning indicates an injury hazard not immediately accessible as you read the marking Caution indicates a hazard to property including the product xi General Safety Summary Symbols on the Product The following symbols may appear on the product A uj ATTENTION Double Refer to Manual Insulated To Avoid Fire or Shock Hazards U
4. 60 Line Sweep with Markers 60 Line Sweep with Markers B Y and R Y 500 kHz Bowtie reduced amplitude Y 500 kHz Bowtie reduced amplitude B Y and R Y Bowtie Markers Y Channel Only Convergence Vertical Lines Y Channel Only Convergence Horizontal Lines Y Only Active Picture Markers Vertical Limits Y Channel Active Picture Markers Horizontal Limits The Significance of the Active Picture Markers Figure 3 1 Block Diagram of the TSG 601 Table 1 1 Encoding Parameters Table 1 2 Timing Relationships Table 1 3 Test Signal Characteristics 1 13 1 14 1 14 1 15 1 15 1 16 1 16 1 17 1 17 1 18 1 18 1 19 1 19 1 20 1 20 1 21 1 21 1 21 1 22 1 22 1 22 1 23 1 23 1 24 1 24 1 25 1 25 1 26 1 26 1 27 1 27 Contents Table 1 4 Serial Digital Video Output 1 10 Table 1 5 Cable Simulator 1 10 Table 1 6 Character Identification 1 11 Table 1 7 Power Supply 1 11 Table 1 8 Physical Characteristics 1 11 Table 1 9 Environmental Characteristics 1 12 Table 1 10 75 and 100 Color Bars Timing 1 13 Table 1 11 Pluge Timing
5. anna DUEB SERES 5 3 Diagrams terr enum dum e dose donis 5 3 Circuit Board 5 4 Numberin renum naar ek ine 5 4 Diagnostics pde dus ADU Be t des 5 4 The Diagnostic Menu 5 4 Corrective 5 6 Obtaining Replacement Parts 5 6 Torque Specifications 5 7 Replacing Assemblies 5 7 Back Cover Removal Replacement 5 7 Connector Panel Removal Replacement 5 7 Main Board and LCD Removal Replacement 5 8 Keypad 1 5 8 Keypad Replacement 5 8 Replaceable Electrical Parts 6 1 Diagrams a nr 7 1 Replaceable Mechanical Parts 8 1 List of Figures Figure 1 1 Analog Digital Line Timing 625 50 Systems 1 5 Figure 1 2 Analog Digital Line Timing 525 60 Systems 1 5 Figure 1 3 Analog Digital Field Timing 625 line Systems 1 6 Figure 1 4 Analog Digital Field Timing 525 line Systems 1 7 Figure 1 5 75 Color Bars 1 12 Figure 1 6 75 Color Bars B Y 1 13 viii TSG 601 Service M
6. 1 5 NG 10173 176 NVE_WAIT D 2 A 7 107 10177 177 NVW_WAIT D 3 A 10 1010 10178 78 5 D 4 SQ PADS FAS ATAR 10178 179 ASTE 54 5 s 1011 10179 186 FDO FD5 6 OF BOARD FAS 13 187 FDI FD6 7 FOR TEST ot gt R6 15 1013 10187 as 07 68 04 1015 10188 16 189 Ai9 SOE 9 18 1016 10189 192 FD2 10 72 m 9 1018 10192 198 FDS es u7 qo 20 195 COLO MAX243 a2 1020 10195 1K LCDBL S FA 1021 10196 196 o 5 p 0103 1022 10197 23 198 FDS 1 2 y gt 23 _ 1023 10198 198 E Cie sv 5V J1 14 024 10201 7502 FD7 ce ii 1027 10202 22uF T a ADB 2 1 ADS 3 15 na 6 LCD_CNST ADA 4 1 FPGA 2 gt ee 107 Qf 5 1 U23 AE en y13 AD2 6 712 UPD6451 ze 5 1 0 105 ADi 7 15 IDSCLK va 12 IDCHAR 2 ADO 8 1 IDDATA CURE Are A RE XD 11 14 STD 3 9 r IDSTB 5 1 ve a er SRS 4 LCD RW 10 715 CTS 10 52 19232 IDHSYNC 18 5 Te 80186 INTERNAL U10 12 715 INDVSYNO 9 15 DBLK SFE 18 7 INTERFACE 1408 7 13 715 YSYNG 16 ot 2 4949 15 20 17 RIS 9 24 72 VOUT O 2 5V R45 c1 45V 5 HZ qe 8 9SCIN 1 IDBUSY ae OSCOUT Busy L sk II 1 M eon RS 232 DRIVER ne 8 HN vec o sv GND A3 LCD BOARD NOTE INDICATES COMPONENTS MOUNTED ON THE BACK OF THE BOARD P O A1 MAIN
7. TF SER CIKIS A lt RESET TCLKSEL Lay GND C108 C109 14 I r 9 MUTE TMUXO 55 0 1UF 0010 1UF CLKVID TMUX1 A R12 5VS 221 R25 C16 1 Mi osc our Nc D R13 68 1 T 001UF Supe STUB1 150 44 d STUBO Y T vec 53 A Sie R60 047UF HERR vos 121 E 43 AFCOUT voc 23 voc C26 8 gt c26 TERMINATION DETECTOR SERMO MODEO GND 5 SERMT 3 GND A lt VCOAGC GND 40 37 MC13055 55 LOCKCAP GND A R30 Du 52 LMBIAS comp 18 7 1 u LMBIAS C29 comp 14 QUADB CDECT RLDETT gt SEFUN COMPVCC METER 5VA IFVCC DETOUT R33 DETOUT 2 0K COMPGND 17 29 IFGND QUADIN 18 28 Bat 2K RL DET P O A1 MAIN BOARD SERIAL OUTPUT A1 TSG 601 Schematic Diagram lt 3 gt Component Locator Chart 1 Main Board Partial assembly 1 also shown on schematic diagrams 1 and 2 The schematic diagram has an alphanumeric grid to assist in locating parts within that diagram Comp Diag Bd Comp Diag Bd Comp Diag Bd No Loc Loc No Loc Loc No Loc Loc c2 01 C63 G3 D1 L1A F2 F1 01 C1 L1B F3 F1 C7 C1 C64 H3 E2 17 B1 C1 C36 G2 A3 C65 H3 E2 C37 G2 B1 C68 G3 c2 Q7 D2 D1 C69 G3 C2 E2 El C38 G3 H3 c2 Q9 C1 C1 C39 G3 A2 Q10 E2 El C40 G2 D2 C72 H3 c2 at G1 D1 C41 G2 D1 C81 H3 D1 Q12 B2 C1 C42 H2 E2 C82 G3 C2 C90 G3 D4 R6 B2 C1 C43 H2 D2 C91 G3 R52 C1 C1 C44 H2 E2 R53 D2 El
8. 28 R67 U22C pos 15 GND 10115 15 5 920 0 vec 28 o sv 100 74HCT04 POS 18 SPARE 3 GND 10116 117 503 GND p pos 18 GND 10117 117 503 R68 GND 10118 100 m PWR DWN gt F2 GND 10120 20 uai SET PI0 PWMO 4 GND 10121 Pe R69 P11 PWM1 45 GND 10124 122 5d 4 s 5 ii 100 Tong P12 GND 10125 Di 50 COLO H2 126 53 208 9 12 P13 GND 10126 02 R70 51 COLI 127 SAO SA2 8 13 P14 GND 10127 A2 3 __ 100 52 Cole 128 SAT 7 15 509 15 GND 10129 AS Da 515 58 COLS GND 134 SAB 6 16 10134 A4 D5 516 54 COLA en 135 XILINX 55 5 17 10135 AS 06 136 SAS SAG 4 18 GND 10136 07 79 RXD 137 u2 07 19 80 TXD END 10137 139 SA7 SA8 25 P31 TXD NC 10139 PT CTS 140 SAB SA9 24 P32 SCK NC 10140 304 iem 9 Pa3 SQ SBO 2 NC 10141 EM qx TER 21 aio 5V amp 3 NC 10143 a an 55 P35 T01 4 NC 10144 122 Z 12 45 1 vss P36 TO2 II O NC 10145 448 a s A13 vss P37 TO3 NC 10146 14 7 10146 7149 SWEL 105 150 SWEH SWEH 27 107 NC 10150 Hg CWE 20 9 WE 28 10163 420 9 vec 5 o sv 155 0163 164 AWAKE soe 4 9 D4 p 156 167 157 NC 10167 168 RD NC 10168 158 10168 SPARE 4 206 370 SPARE 3 NC 10170 925 207 Nc 10172 172 WR 208 NC 10172 173 WAIT
9. Ri 1 2 TP4 3 FS ES C57 C37 3 Bi C103 1 H5 Bl R2 1 2 G3 4 15 C38 3 G3 1051 3 Di R3 1 A2 G4 3 Gi Di J15 C39 3 G3 2 1061 1 A2 R4 1 A5 F4 3 Gi Di TER C40 t 3 62 D2 cto7 2 R5 1 E2 D2 i R6 3 B2 U3 t 3 c2 A1 Main Board front cat 3 G2 01 C108 2 01 Ref 2 u4 Di E2 oT 42 3 H2 E2 109 2 Di U5 B2 F2 Static Sensitive Devices cast 3 D2 2 G RH 2 ct B 06 ade See Maintenance Section C44 t 3 H2 E2 111 3 2 El R12 2 C45 t 3 D3 R13 2 E B3 U7 65 Al C46 3 D3 3 F2 El R14 2 Fl Uat B2 D3 C47 t 3 63 CR2 3 B2 R17 2 4 110 5 CR3 3 BI R19 t 2 Fi Ut 2 C48 1 3 63 F2 3 E El R20 2 Fi 113 2 62 C49 t 3 G2 1 2 016 2 Ci C50 1 3 H3 G2 R22 2 B4 121 64 4 C51 3 H3 El 3 64 R25 2 Fi C52 3 E2 3 G3 C2 R30 2 F2 U22A D2 C53 3 G3 R31 2 H2 2 Ci C54 t 3 D3 Fi 3 BI Ci R32 2 E2 U22Cf B3 R33 2 H2 A2 123 65 DI C56 3 F2 Fi J1 1 B5 Al R45 1 B5 Al U25 3 Ci C57 3 J 1 M G2 U26 04 C58 3 G4 J 3 C1 R46 1 B5 1 C59 3 64 1 B5 B4 R49 2 E2 VRif 3 Oft Gi C60 f 3 H4 J8 2 Gi R50 2 E2 4 VR f 3 E Et C61 t 3 H4 c3 JO 3 Bi R52 3 C62 3
10. 1 2 EMI Compliance yra Ma Cue ce 1 2 Specification 1 3 Waveform Diagrams 1 12 Operating Information 2 1 Powering the Instrument 2 1 Keypad and Display Conventions 2 2 Using your TSG 601 ee nn 2 3 Outputting Serial Video Test Signals 2 4 Adjusting the Output 2 5 Controlling the Video Component Y Cr Cb Channels 2 5 Specifying 8 10 bit Data Words 2 6 Specifying CRC Content of the Signal 2 6 Inserting ID 2 7 Editing ID Messages 2 7 Positioning ID 2 7 Setting up ID Cycle 2 8 Cable 5 2 9 Detecting Incorrect Termination 2 9 Saving Storing Presets IDs 2 9 Recalling Presets 2 10 Theory of Operation 3 1 Block Diagram Description 3 1 OVERVIEW ea nn VOR TUM Dau Voas mue 3 1 Keypad uqusqa qaqaqa 3 4 RS 232 P
11. 0 25PF 50V NPO 1206 TK2058 C3216C0G1H040C A1C100 290 0943 00 CAP FXD ALUM 47UF 50 20 25V 6 X 11MM 0 1 5 CEUSM1E470 Q A1C101 283 5267 00 CAP FXD CER MLC 1UF 80 20 25V Y 5V 1206 04222 12063G105ZAT1A 1 102 283 5267 00 CAP FXD CER MLC 1UF 80 20 25V Y 5V 1206 04222 12063G105ZAT1A A1C 103 283 5282 00 CAP FXD CER MLC 2 2UF 480 2096 16V Y 5V 0 120 X 0 060 04222 1206 62257 2 A1C105 283 5261 00 CAP FXD CER MLC 1UF 48096 20 25V Y 5V 1206 04222 1206361057 1 A1C106 283 5188 00 CAP FXD CER MLC 100PF 5 100V NPO 1206 04222 12061 101 1 A1C107 283 5195 00 CAP FXD CER MLC 10P F 5 100V NPO 1206 04222 12061 100 1 A1C108 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C109 283 5203 00 CAP FXD CER MLC 1000PF 10 100V X7R 1206 04222 12061 102 1 A1C110 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C111 290 1322 00 CAP FXD ALUM 470UF 20 16V ESR 55680 UPY1C471MPH 0 0950HM 20C 100KHZ 10 X 12 5MM LS 5MM A1C112 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C113 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A AICR1 152 5027 00 DIODE RECT SCHTKY 40V 1A 04713 514013 A1CR2 152 5018 00 DIODE SIG ULTRA FAST 100V 0 74VF 4NS 2 0PF SER PAIR 27014 MMBD1203 HIGH A1CR3 152 5027 00 DIODE RECT SCHTKY 40V 1A 04713 MBRS140T3 A1CR4 152 5086 00 DIODE RECT ULTRA FAST 600V 1A 50NS 04713 516073 A1CR5 152 08
12. REO eS L1 2 3 Horizontal Main 2512 Points Acquire Dese sa Continuous Vertical Mag 200 mV Vertical Pos Wfm 0 Maiti Size sa SRE eres Ins M in Posicion 4 ns Impedance oer as ehe 500 Coupling iE al naeh DC BW Limit eed vs 1 GHz TRIGGER MENU Trigger Main Source Description L1 Level M eii ae SER SERES 0 Time Holdoff 510 ns Modena aos Auto Coupling s lb Aa os DC Nh rm ey MEASURE MENU Amplitude S Rise S 20 to 80 Left limit 10 Right limit 95 Fall S 2096 to 8096 Overshoot S Undershoot S MID DC Level Connect the TSG 601 Serial Output to a 75 500 minimum loss pad Connect the other side of the pad to the 11403A through a 50 Q cable On the TSG 601 press and hold down the Lock Out button and then press the ON button You will now be in the Diagnostic Menu Press and hold the down arrow until SIGNAL AMPL appears on the display then press ENTER Use the left and right arrows to adjust the amplitude on the 11403 to 600 mV 5 mV 4 7 Performance Verification and Adjustment Procedures f Press the up arrow The display should now read ADJ Signal Ampl 800 mV g Use the left and right arrows to adjust the amplitude on the 11403A to 800 mV 5 mV h Pres
13. 13 361 1636 00 2 SPACER SANTOPREN 80009 361163600 En 1 DISPLAY MODULE LCD 16 CHARACTERS X 2 LINES 5 X 7 DOT MATRIX TRANSFLECTIVE YEL GRN LEDBACK LIGHT WIDE TEMP RANGE SEE A3 REPL 15 614 0920 00 1 KIT ASSEMBLY 378 2073 00 202 0230 03 80009 61409200 STANDARD ACCESSORIES 016 1229 00 1 CASE CARRYING TSG90 80009T 0016122900 070 8909 00 1 MANUAL TECH INSTRUCTION CARD TSG601 K2548 070890900 16 119 4538 00 1 POWER SUPPLY 12W 12V 180CM CORD WITH 2 1MM 0VG90 WD1E1000CRA12CN FEMALE RIGHT ANGLECONN CN STANDARD ONLY 0VG90 049 1000 12 OPTIONAL ACCESSORIES 119 4539 00 1 POWER SUPPLY 12W 12V 1A 180CM CORD WITH 2 1MM FEMALE RIGHT ANGLECONN CN OPTION 1 ONLY 17 119 4488 00 1 BAT PACK ASSY ODWW6 101 147 1 070 8910 00 1 MANUAL TECH USER TSG601 TK2548 070891000 070 8911 00 1 MANUAL TECH SERVICE TSG601 DP TK2548 070891100 8 4 TSG 601 Service Manual FIG 1 EXPLODED VIEW 8 5 TSG 601 Service Manual 8 6 TSG 601 Service Manual
14. 4 LCD Diagnostic press the key to turn all segments on and press the p key to turn all segments off Exit this diagnostic with the and keys as usual 54 LCD Contrast 4 ENTER 5 LCD Contrast use the 4 and keys to adjust display contrast to compensate for various viewing angles and ambient lighting 6 Signal Ampl CAL Press ENTER 6 Signal Amplitude Calibrate instructions for the use of this diagnostic function begin on page 4 7 in the Verification and Adjustments section of this manual CAUTION Changing this setting will affect the serial video output amplitude and may give unexpected results This utility should be used by Qualified Service Personnel ONLY TSG 601 Service Manual 5 5 Maintenance 10 Corrective Maintenance 7 Format Select Standard 625 lt p Format Set use the and p keys to select between 625 625 lines 50 Hz and 525 525 lines 60 Hz 8 Software Vx x Signals Vx x Software Signal versions note these numbers in any correspondence to Tektronix about your TSG 601 9 KERNEL CHECK SUM ENTER Kernel Checksum this information is used during manufacture and has no pertinence to operation or adjustment of the TSG 601 1O0 XILINIX CHECK SUM ENTER Xilinx Checksum This information is used during manufacture Corrective maintenance deals with obtaining replacement parts torque specifica tions and component replacement Obtaining Replacement parts are
15. 45 03 C92 4 R54 D2 D1 C46 G3 D3 C93 G3 F3 R56 G1 C47 G3 C100 F3 F1 C101 F1 D1 R57 F2 D1 C48 G3 F2 C105 D1 El R58 B2 C2 C49 H3 G2 Cif F2 El R59 B2 D1 C50 H3 G2 R78 D2 D1 C51 H3 F3 CR1 F2 E1 C52 G3 G3 CR B2 C1 TP3 F3 B3 CR3 B1 C1 TP4 F3 G1 C53 G3 G3 CR4 E2 El C54 G3 D3 U1A G1 D1 C56 F2 F1 E G4 G1 D1 C57 G4 C4 E2 G3 c2 u3 c2 D1 C58 G4 025 F1 C1 F B1 C1 C59 G4 VR1 C1 C1 C60 H4 C3 J5 A1 C1 VR2 E2 E1 C61 H4 C3 J10 A1 B1 C62 H4 DC IN 9 15V BATTERY COMPARTMENT BROWN POLARITY PROTECTIO N 025 LM2951 Y 5 ORANGE VCHARGE 1 2 9 6v YELLOW 1 2 3 4 5 GREEN CAXXXA BATTERY PACK BT2 ORANGE 8X1 5V YELLOW AA CELLS APPROX 50 M CABLE T TSG 601 1 2 3 4 5 2 R58 562 CR2 BATTERY CHARGER A1 OUT SEN ERROR GND SUPPLY CONTROL D3 T 74HC74P 9 Le 4 KEYBD gt lt gt U3 LM2574M 5 OFF ON PWRGND SWITCHING SUPPLY NOTE INDICATES COMPONENTS M
16. A1J13 This interface is for manufacturing purposes only A1U7 is the interface driver The microprocessor A1U5 is used to gather data and control the operation of the instrument based on this data The microprocessor gathers data from several sources the keypad the internal RS 232 port the battery voltage level the out put signal termination circuit and the reset signal The keypad and RS 232 in puts are discussed above The low battery condition is monitored on the BATT LO line which is applied to port 70 which is an analog to digital converter input When the battery volt age level VIN goes below a set threshold the instrument will indicate low bat teries on the LCD display After going below another voltage threshold the instrument shuts itself off These voltage thresholds are dependent on the battery type and are listed in Table 3 2 Table 3 2 Low Battery Voltage Thresholds Battery Type Off Alkaline 6 5 V NiCad 8 6 V TSG 601 Service Manual Theory of Operation Startup Sequence TSG 601 Service Manual The microprocessor exerts most of its control over the the instrument through ports 4X 5X and 6X Port 4X is a multiplex address LSB and data bus while ports 5 6X handle the upper address bus and the read write and wait con trol lines With the extended memory capabilities of these ports the micropro cessor can fetch instruction code from the flash PROM A1U4 store and recall users pres
17. Shallow Ramp Modulated 5 Step Modulated Pulse and Bar 60 Line Sweep with Markers Bowtie Convergence Equalizer SDI Checkfield PLL SDI Checkfield Matrix SDI Checkfield Active Picture Markers Oo gt o G S gt O Adjusting the Output Amplitude 1 Press the key marked Output Ampl 2 Select the desired output level with the arrow keys The y keys change the level to the next higher or lower 100 mV increment lt keys change it in 20 mV increments Holding an arrow key down will continually increase or decrease the level until 1t reaches its minimum or maximum 3 Press any rectangular key to exit the Output Amplitude Adjust function Controlling the Video Component Y Cp Channels 1 Enter the Output menu press Shift then Output Ampl and press ENTER to reach Channel Output Selection The display will look something like this TSG 601 Service Manual 2 5 Operating Information Specifying 8 or 10 bit Data Words Specifying CRC Content 2 6 of the Signal Chami Y Cb Sele ON ON 2 Use the lt and p keys to position the flashing underline cursor to the status ON or OFF of the channel you wish to change 3 Toggle the status with the or w key The channel status will change instantly you don t have to press ENTER NOTE All three component channels default to ON whenever the TSG 601 is switched of
18. names and addresses of manufacturers of components listed in the electrical parts list Abbreviations conform to American National Standards Institute ANST standard Y1 1 A list of assemblies can be found at the beginning of the electrical parts list The assemblies are listed in numerical order When the complete component number of a part is known this list will identify the assembly in which the part is located 6 1 Replaceable Electrical Parts Column Descriptions Component No Column 1 Tektronix Part No Column 2 Serial Assembly No Column 3 and 4 Name and Description Column 5 Mfr Code Column 6 Mfr Part No Column 7 6 2 component circuit number appears on the diagrams circuit board illustrations located in the diagrams section Assembly numbers are also marked on each diagram and circuit board illustration in the Diagram section and on the mechanical exploded views in the mechanical parts list The component number is obtained by adding the assembly number prefix to the circuit number Example a Component Number A23R1234 A23 R1234 Assembly Number Circuit Number Read Resistor 1234 of Assembly 23 Example b Component Number A23A2R1234 A23 A2 R1234 7 Assembly Number Subassembly Number Number Read Resistor 1234 of Subassembly 2 of Assembly 23 The electrical parts list is arranged by assemblies in numerical sequence Al with its subassemblies and part
19. 00 RES FXD THICK FILM 68 10HM 1 0 125W TC 100 PPM 50139 BCD68R1FT A1R30 321 5087 00 RES FXD FILM 620 OHM 5 0 125W 50139 6200 A1R31 311 5034 00 RES VAR TRMR CERMET 2K OHM 25 0 25W 4MMSQ TOP TK2073 0407202 ADJ A1R32 321 5266 00 RES FXD THICK FILM 11K OHM 1 0 125W TC 100 91637 CRCW1206 1102FT A1R33 321 5281 00 RES FXD THICK FILM 2K 0HM 1 0 125W TC 100PPM 91637 CRCW1206 2001FT A1R34 321 5051 00 RES FXD THICK FILM 0 OHM 1 0 125W TC 100 PPM 09969 1206 1835 321 5038 00 RES FXD THICK FILM 47 5K OHM 1 0 125W TC 100 PPM 50139 4752 A1R36 321 5032 00 RES FXD THICK FILM 15 0K OHM 1 0 125W TC 100 PPM 50139 1502 A1R37 321 5030 00 RES FXD THICK FILM 10 0K OHM 1 0 125W TC 100 PPM 50139 1002 A1R38 321 5209 00 RES FXD FILM 243 0HM 1 0 125WTAPE amp REEL SMD 91637 CRCW 1206 2430F A1R39 321 5049 00 RES FXD THICK FILM 1M OHM 1 0 125W TC 100PPM 57668 MCR18FXEA1M A1R40 311 5040 00 RES VAR TRMR CERMET 10K 0HM 25 0 25W 4MM TK2073 G4DT103M SQ TOP ADJ A1R42 321 5038 00 RES FXD THICK FILM 47 5K OHM 1 0 125W TC 100 PPM 50139 4752 TSG 601 Service Manual 6 7 Replaceable Electrical Parts Component Tektronix Serial Assembly Number Mfr Mfr Part Number Part Number Effective Discontinued amp Description Code Number A1R43 321 5041 00 RES FXD THICK FILM 82 5K OHM 1 0 125W TC 100
20. 047UF 10 50V X7R 1206 04222 12065C473KATIA 1 76 283 5049 00 CAP FXD CER MLC 180PF 5 50V NPO 1206 TK2058 3216 061 181 A1C77 283 5003 00 CAP FXD CER MLC 0 01UF 10 50V X7R 1206 TK2058 C3216X7R1H103K 1 78 283 5049 00 CAP FXD CER MLC 180PF 5 50V NPO 1206 TK2058 C3216C0G1H181 1 79 283 5049 00 CAP FXD CER MLC 180PF 5 50V NPO 1206 TK2058 C3216C0G1H181 1 81 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C82 290 5034 01 CAP FXD ALUM 33UF 20 10V 5 7MM 0 224 1W344 MVK10VC33RME60T A1C83 283 5187 00 CAP FXD CER MLC 15P F 5 100V NPO 1206 04222 120614150 A1C84 283 5187 00 CAP FXD CER MLC 15P F 5 100V NPO 1206 04222 120614150 AT1A A1C85 283 5188 00 CAP FXD CER MLC 100PF 5 100V NPO 1206 04222 12061 101 1 A1C87 283 5188 00 CAP FXD CER MLC 100PF 5 100V NPO 1206 04222 120614101 AT1A A1C88 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C89 283 5114 00 CAP FXD CER MLC 0 1UF 1096 50V X7R 1206 04222 12065C104KAT 1A A1C90 283 5203 00 CAP FXD CER MLC 1000PF 10 100V X7R 1206 04222 12061 102 1 A1C91 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C92 283 5203 00 CAP FXD CER MLC 1000PF 10 100V X7R 1206 04222 12061 102 1 A1C93 283 5203 00 CAP FXD CER MLC 1000PF 10 100V X7R 1206 04222 12061 102 1 A1C98 283 5005 00 CAP FXD CER MLC 4PF 0 25PF 50V NPO 1206 TK2058 C3216C0G1H040C 1 99 283 5005 00 CAP FXD CER MLC 4PF
21. 11 131 311 11 11 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 Timing reference truth table SECOND FIELD 5 second field 313 314 315 316 317 318 24 329 330 331 334 335 336 Analog sync waveform second field Digital field blanking second field inking IIITNNN A Digital video igital second field Ancilla Digital video Digital data stream d 00 00 11 11 11 11 11 11 11 11 11 11 11 11 11 11 00 11 11 11 11 11 11 1 n 1 11 11 11 11 11 00 00 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 Timing reference truth table Figure 1 3 Analog Digital Field Timing 625 line Systems 1 6 TSG 601 Service Manual Specifications Start of Analog Field 1 Odd Start of Digital Vertical Blanking Start of Line 1 F 0 Start Digital Field 1 Equalizing Vertical Sync Equalizing Pulse Interval Pulse Interval Pulse Interval F 1 Start of Digital Field 2 67 268 269 5H Start of Digital Vertical Blanki ig anking gt Line 26 Figure 1 4 Analog Digital Field Timing 525 line Systems Table 1 3 Test Signal Characteristics Video Data gt Horizontal Sync Pulses Video Data gt 0 Characteristic Supplemental Information 75 Color Bars See Figures 1 5 1 6 and 1 7 and Table 1 10 100 Color Bars See Figures 1 8 1 9 and 1 10 and Table 1 10 Pluge BBC 1 See Figure 1 11 and Table 1 11 Field Timing 625 50 700 mV
22. 22526 68001 105 0 120 TAIL 30 GOLD 113 131 5267 00 CONN HDR PCB MALE STR 2 X 40 0 1CTR 0 235 00779 104326 4 115 131 4794 00 CONN HDR PCB MALE STR 1X2 0 1CTR 0 235 53387 2402 6112 UB 1 21 131 0391 00 CONN RF J ACK SMB 50OHM STR PCB GOLD GOLD 0 293 24931 32 105 1 0 155 TAIL 3 0 045 50 TAIL 0 038DIA CTRCOND 0 2 SQ PCB 0 312 HEX A1L1 108 1545 00 INDUCTOR DUAL TOROID 314UH 10 157UH AT 80009 108154500 1ADCMAX 0 25 OHMS 15 X 12MM A1L3 108 0598 00 COIL RF FIXED 200UH 0JRO3 108 0598 00 A1L7 120 1939 00 TRANSFORMER 2 92266 0JRO3 27 92266 120 19 101 151 5066 00 TRANSISTOR SIG MOS N CH 60V 0 115A 7 5 OHM 04713 2 7002111 102 151 5066 00 TRANSISTOR SIG MOS N CH 60V 0 115A 7 5 OHM 04713 2 7002111 103 151 5000 00 TRANSISTOR SIG BIPOLAR PNP 40V 200MA 250MHZ AMPL 04713 39061 1 104 151 5021 00 TRANSISTOR SIG BIPOLAR NPN 40V 600MA 300MHZ AMPL 04713 2222 1 105 151 5021 00 TRANSISTOR SIG BIPOLAR NPN 40V 600MA 300MHZ AMPL 04713 MMBT2222ALT1 106 151 5000 00 TRANSISTOR SIG BIPOLAR PNP 40V 200MA 250MHZ AMPL 04713 39061 1 107 151 5066 00 TRANSISTOR SIG MOS N CH 60V 0 115A 7 5 OHM 04713 2N7002LT1 108 151 5088 00 TRANSISTOR PWR MOS P CH 30V 4 6A 0 07 0 135 17856 S19435DY A109 151 5088 00 TRANSISTOR PWR MOS P CH 30V 4 6A 0 07 0 135 17856 519435 1010 151 5001 00 TRANSISTOR SIG BIPOLAR NPN 40V 200MA 300MHZ AMPL 04713 39041 1 1011 151 5066 00 TRANSISTOR SIG MOS N CH 60V 0 115A 7 5 OHM 04713 2 70
23. 27 MHz clock to a serializer A1U11 The serializer multiplies the clock rate by 10 and outputs the data in a serial stream at 270 MHz The output of the serializer passes through a buffer A1U16 before being applied to the output connector The buffer amplitude is variable and is controlled by the DAC output SIG_LEVEL of the microprocessor Termination Detector The output signal line is monitored with a return loss bridge and signal strength meter IC to determine if the output is properly terminated Power Supply The TSG 601 uses a switching power supply to generate the 5 V supply Input power can be supplied either through the DC input jack or by batteries mounted in the instrument s integral battery compartment TSG 601 Service Manual Theory of Operation LO lt Edi lI PROM Upper Address Bus CONTROLLER Address Data Bus Test Signal Microprocessor 4000 Series Frame Line Data Kernel Xilinx FPGA Flash PROM Character ID Generator gt Video Test Signal Data Watchdog SRAM gt Address Bus Launch Serial Amplitude Adjust Driver Video Cable Open Ww D Short Indicator Termination Detector Power Supply Interchangeable TCXO Input Output 21 MHz DC Input Board Clock Battery Input D Figure 3 1 Block Diagram of the TSG 601 TSG 601 Service Manual 3 3 Theory of Operation Keypad RS 232 Port Microprocesso
24. 74 52 67 0 0 us Figure 1 34 Convergence Horizontal Lines Y Only 700 mV 0 I 0 0 us Figure 1 35 Active Picture Markers Vertical Limits Y Channel Only 1 26 TSG 601 Service Manual Specifications 350 Figure 1 36 Active Picture Markers Horizontal Limits All Channels Table 1 13 Active Picture Markers Timing 625 50 0 72 us 52 72 52 44 625 50 and R Y 5244 5318 525 60 0 16 53 02 0 29 52 89 5289 525 60 B Y and First full line in an analog field First and last full amplitude samples permitted by nominal analog blanking Last full line in an analog field N First and last digital active picture samples Figure 1 37 The Significance of the Active Picture Markers TSG 601 Service Manual 1 27 Specifications 1 28 TSG 601 Service Manual ma csaO Operating Information A AAA Operating Information This section duplicates material contained in the TSG 601 User manual Tektro nix p n 070 8910 00 The material is included here for your convenience Please check the User manual whenever you need more information on any topic IN 9 ASL 6 NI Powering the Instrument The TSG 601 is DC powered You may power it with the standard AC adapter the optional 9 6 V NiCad battery pack eight standard AA batteries or a BP type battery
25. 9 78 14 37 Figure 1 23 625 Line Mod Pulse and Bar 248 1 mV 0 0 us 9 78 14 37 Figure 1 24 625 Line Mod Pulse and Bar R Y TSG 601 Service Manual 1 21 Specifications 700 T Word 940 10 bit S0 55522245 0 AAA s Word 64 10 bit 0 0 4 67 us 11 48 18 22 44 22 Figure 1 25 525 Line Mod Pulse and Bar 0 0 11 48 us Figure 1 26 525 Line Mod Pulse and Bar 248 1 mV 0 0 11 48 us Figure 1 27 525 Line Mod Pulse and Bar 1 22 TSG 601 Service Manual Specifications 0 5 MHz 1 MHz 2 2 3 MHz 4 MHz 5 MHz 5 75 MHz 0 37 3rd Marker 0 0 us 17 0 us Figure 1 28 60 Line Sweep with Markers Y 350T 2 0 2 5 2 2 2 75 MHz 1 210 mV 0 0 17 0 us Figure 1 29 60 Line Sweep with Markers B Y and R Y TSG 601 Service Manual 1 23 Specifications 500 kHz 0 0 us 26 74 Figure 1 30 500 kHz Bowtie reduced amplitude Y 502 kHz 0 0 us 26 74 Figure 1 31 500 kHz Bowtie reduced amplitude B Y and R Y 1 24 TSG 601 Service Manual Specifications 450 350 mV 0 0 us 26 74 Figure 1 32 Bowtie Markers Y Channel Only Pulse HAD 225 ns 5257 mV 0 0 4 37 Figure 1 33 Convergence Vertical Lines Y Channel Only TSG 601 Service Manual 1 25 Specifications 525 mV 0
26. 960 10 bit 231 9 mV 118 1 mV 118 1 mV i 231 9 mV 350 La mco Word 64 10 bit 0 0 D E F G H Figure 1 9 100 Color Bars 1 14 TSG 601 Service Manual Specifications 350 293 1 mV mV 293 1 mV Figure 1 10 100 Color Bars R Y 525 60 lines 143 212 een 625 50 lines 167 250 mV EN IJI nn 0 0 0 us Figure 1 11 Pluge 1 Y only TSG 601 Service Manual 1 15 Specifications ts do lines 63 114 A lines 115 166 mV lines 167 218 200 ax c EL En EEE REDET DE TE RE lines 219 270 IDA ee Rn Des Tre 0 0 us A Figure 1 12 625 Line Pluge 2 Y Channel Only Table 1 11 Pluge Timing 5 B 625 amp 525 21 57 us 23 87 26 17 28 47 40 07 52 07 A lines 55 98 P E ea lines 99 142 mV A AE O lines 143 185 MO ette ccce e A A A 186 229 0 0 Figure 1 13 525 Line Pluge 2 Y Only 1 16 TSG 601 Service Manual Specifications 703 2 Word 944 10 bit 562 6 421 9 mV 281 3 mV 140 6 mV 0 0 us B e D E F G Figure 1 14 5 Step Staircase and Modulated 5 Step Y 210 9 mV 0 0 us A
27. A1C60 283 5203 00 CAP FXD CER MLC 1000PF 10 100V X7R 1206 04222 12061 102 1 A1C61 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C62 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C63 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C64 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A TSG 601 Service Manual 6 5 Replaceable Electrical Parts Component Tektronix Serial Assembly Number Mfr Mfr Part Number Part Number Effective Discontinued Name amp Description Code Number A1C65 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C66 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C67 283 5049 00 CAP FXD CER MLC 180PF 5 50V NPO 1206 TK2058 3216 061 181 A1C68 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C69 283 5203 00 CAP FXD CER MLC 1000PF 10 100V X7R 1206 04222 12061 102 1 1 71 283 5203 00 CAP FXD CER MLC 1000PF 10 100V X7R 1206 04222 12061 102 A1C72 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C73 283 5003 00 CAP FXD CER MLC 0 01UF 10 50V X7R 1206 TK2058 C3216X7R1H103K A1C74 283 5002 00 CAP FXD CER MLC 1000PF 10 50V NP 0 1206 2058 C3216COG1H102K 1 75 283 5113 00 CAP FXD CER MLC 0
28. B C D E F G Figure 1 15 5 Step Staircase B Y Table 1 12 5 Step Staircase and Modulated 5 Step Timing C ___ 6258 55 2007 ENT TSG 601 Service Manual G 46 30 1 17 Specifications mV B Y 83 7 mV Figure 1 16 625 Line Modulated 5 Step B Y and R Y mV 157 3 157 3 0 0 6 96 46 30 Figure 1 17 525 Line Modulated 5 Step B Y and R Y 1 18 TSG 601 Service Manual Specifications 47 04 Figure 1 18 Limit Ramp Y 3504 mV y W 896 9 mV 0 0us 5 70 7 26 47 33 Figure 1 19 Limit Ramp B Y and R Y TSG 601 Service Manual 1 19 Specifications 620 551 1 482 2 413 3 344 4 275 6 206 7 137 8 68 9 mV 1 78 52 67 Figure 1 20 Shallow Ramp Y NOTE You may set the shallow ramp pedestal to one of the ten levels shown To do so use and keys to select from levels O through 9 when the TSG 601 is in normal operation and the Shallow ramp is active 350 0 mV 281 1 212 2 143 3 74 4 5 6 63 3 132 2 201 1 270 0 1 78 52 67 Figure 1 21 Shallow Ramp B Y and R Y 1 20 TSG 601 Service Manual Specifications 700 T Word 940 10 bit mV S50 T 99599 0 Word 64 10 bit 0 0 541 9 78 14 37 18 96 44 96 Figure 1 22 625 Line Mod Pulse and Bar Y 196 3 mV 0 0 us
29. BOARD Schematic Diagram lt 2 gt Component Locator Chart A1 Main Board Partial assembly A1 also shown on schematic diagrams 1 and 3 The schematic diagram has alphanumeric grid to assist locating parts within that diagram Comp Diag Bd Comp Diag Bd Comp Diag Bd No Loc Loc No Loc Loc No Loc Loc UYTU a Te c8 El B4 B1 R19 1 C12 F1 B3 C107 A1 B3 R20 F1 B3 C14 El A3 C108 01 R22 F1 B4 C15 F1 A3 R25 F1 B3 C16 c3 109 01 C110 G2 A2 R30 F2 B3 C17 A2 R31 H2 A2 C18 A2 B4 J8 G1 B3 R32 E2 A3 C19 B2 C4 R33 H2 A2 C26 F2 B3 L3 G2 B3 R49 E2 A3 C27 H2 A2 Q5 D1 A3 R50 E2 A4 C28 G2 B2 R60 A2 C4 C29 F2 A2 R8 C1 C3 R79 G2 A2 C30 G2 B3 R11 C1 B3 C31 G2 A2 R12 C1 B2 C4 C33 E2 4 R13 El B3 R14 F1 B3 u B1 C34 B2 U13 G2 A3 C89 D1 A3 R17 E1 4 U16 C1 A3 5VS O TSG 601 INDICATES COMPONENTS MOUNTED ON THE BACK OF THE BOARD Uti GVG SERIALIZER cio 36 1 5 VIDOUT 35 116 P8 VIDOUT 35 669008 e J8 ScLKvOUT2 38 7 sour 1 SCLK VOUT2 R22 14 RH se ls R17 68 1 PLL LOCK 221 S SIN 5001 150 P RB VSET peii 10 5 BOARD 7 VREF Y TCLKIN 2 cis TLOCK vec
30. F to 15 000 feet 4572 IEC 1010 1 compliance to 2000 m to 50 000 feet 15420 m Test Class Ill as defined in IEC 1010 1 Annex H Category Il as defined in IEC 1010 1 Annex J Note Rated for indoor use only Pollution Degree 2 as defined in IEC 1010 1 Meets the requirements of NTSB Test Procedure 1 category Il 24 inch drop NOTE The following diagrams represent the analog equivalents of the TSG 601 digital test signals Horizontal axis units are microseconds after the start of Dig ital Active Video Unless specified in the caption each illustration represents both 525 line 60 Hz and 625 50 Hz signals supe Word 940 10 bit 465 2 mV TSG 601 Service Manual Specifications 350 262 5 mV 173 9 mV mV 173 9 mV i 262 5 mV 350 0 0 us H Figure 1 6 75 Color Bars B Y 850 Word 960 10 bit 262 5 mV 219 8 mV mV 42 7 mV 219 8 mV 262 5 350 Word 64 10 bit 0 0 us B C D E H Figure 1 7 75 Color Bars R Y Table 1 10 75 and 100 Color Bars Timing Be p p F 2107 39 70 39 85 625 50 525 60 TSG 601 Service Manual 1 13 Specifications o E Word 940 10 bit 620 2 mV 0 Word 64 10 bit Figure 1 8 100 Color Bars Y 3507 Word
31. ITY 3 PIN PACKAGE DIP 14 COMPATIBLE A1Y2 158 5028 00 XTAL UNIT QTZ 12 0 MHZ 0 01 PRL CLH TYPE FPX SM 61429 120 20 A2 671 2586 01 CIRCUIT BD ASSY KEYBOARD 80009 671258601 1 131 5781 00 CONN HDR PCB MALE STR 2 X 10 0 1CTR 0 380 55322 MTLW 110 08 S D A3 119 4506 00 DISPLAY MODULE LCD 16 CHARACTERS X 2LINES 5X7 6272 M16327 Y DOT MATRIX TRANSFLECTIVE YEL GRN LED M 671 3227 00 BD ASSY REAR PANEL BOARD 80009 671322700 A4J1 131 0391 00 CONN RF J ACK SMB 50 OHM STR PCB GOLD GOLD 0 293 24931 32 105 1 0 155 TAIL 3 0 045 50 TAIL 0 038DIA CTRCOND 0 2 SQ PCB 0 312 HEX A4J2 131 5436 00 CONN RFJACK BNC 50 OHM FEMALE STR PCB 0 450H X 24931 28 R299 3 4 0 040 50 0 189 TAIL ON 0 250 CTRP CB A4J3 131 5436 00 CONN RFJACK BNC 50 OHM FEMALE STR PCB 0 450H X 24931 28 299 3 4 0 040 Q 0 189 TAIL ON 0 250 CTRPCB A4J4 131 5436 00 CONN RFJACK BNC 50 OHM FEMALE STR PCB 0 450H X 24931 28 299 3 4 0 040 50 0 189 TAIL ON 0 250 CTRP CB W8 174 3183 00 CABLE ASSEMBLY 80009 174318300 TSG 601 Service Manual CONNECTED Alj8 amp 4 1 6 9 Replaceable Electrical Parts 6 10 TSG 601 Service Manual Diagrams and Circuit Board Illustrations ju F Diagrams and Circuit Board Illustrations Symbols Component Values TSG 601 Service Manual Graphic symbols and class designation letters are based on ANSI Standard Y32 2 1975 Logic symbology is based on ANSI Y32 14 1973 in terms of positive logic Logic symbols depict the
32. J13 1 H5 B2 R53 3 02 Ei Yi 2 R54 t 3 02 Di A3 G2 o T on back of board e 5 c 2 J2 1 J3 J4 A3 LCD Board ron A3 LCD Board front back A1 Main Board back TSG 601 FLASH PROM TSG 601 CPU AND SERIAL DIGITAL GENERATION 1 amp va ROWS 1 29F
33. PPM 50139 8252 A1R45 321 5028 00 RES FXD THICK FILM 6 81K OHM 1 0 125W TC 100 50139 BCK6811FT A1R46 321 5016 00 RES FXD THICK FILM 681 1 0 125 100 50139 6810 A1R49 321 5027 00 RES FXD THICK FILM 5 62K 0HM 1 0 125W TC 100 50139 BCK5621FT A1R50 321 5025 00 RES FXD THICK FILM 3 92K OHM 1 0 125W TC 100 PPM 50139 3921 A1R51 321 5090 00 RES FXD THICK FILM 20K OHM 0 125W 100PPM 1206 T amp R 50139 2002 A1R52 321 5030 00 RES FXD THICK FILM 10 0K 0HM 1 0 125W TC 100 50139 BCK1002FT A1R53 321 5030 00 RES FXD THICK FILM 10 0K OHM 1 0 125W TC 100 PPM 50139 1002 1854 321 5018 00 RES FXD THICK FILM 1 0K 0HM 1 0 125W TC 100 PPM 50139 1001 A1R56 321 5030 00 RES FXD THICK FILM 10 0K OHM 1 0 125W TC 2100 50139 1002 A1R57 321 5030 00 RES FXD THICK FILM 10 0K OHM 1 0 125W TC 100 PPM 50139 1002 A1R58 321 5015 00 RES FXD THICK FILM 562 OHM 196 0 125W TC 2100 50139 5620 A1R59 321 5000 00 RES FXD THICK FILM 10 OHM 196 0 125W TC 2100P P M 91637 CRCW120610ROFT A1R60 321 5007 00 RES FXD THICK FILM 121 OHM 1 0 125W TC 100 50139 BCK1210FT A1R61 321 5006 00 RES FXD THICK FILM 100 1 0 125 100 50139 1000 A1R62 321 5006 00 RES FXD THICK FILM 100 1 0 125 100 50139 1000 A1R63 321 5006 00 RES FXD THICK FILM 100 1 0 125 100 50139 1000 A1R64 321 5006 00 RES FXD THICK
34. Under average conditions the TSG 601 should have preventive maintenance per formed about every 2000 hours This is approximately one year of operation Preventive maintenance includes cleaning visual inspection a performance veri fication and if necessary adjustment See Section 4 for performance verification and adjustment procedures Clean the instrument often enough to prevent dust and dirt from accumulating in or on it Dirt can provide high resistance electrical leakage paths between con ductors or components in a humid environment CAUTION The TSG 601 case is made of molded plastic Do not allow water to get inside of any enclosed assembly or component Do not clean any plastic materials with organic cleaning solvents such as benzene toluene xylene acetone or similar compounds because they may damage the plastic The TSG 601 contains electrical components that are susceptible to damage from static discharge Static voltages of 1 kV to 30 kV are common in unprotected environments CAUTION Static discharge can damage any semiconductor component in this instrument Observe the following precautions to avoid static damage m Minimize handling of static sensitive components m Transport and store static sensitive components or assemblies in their original containers on a metal rail or on conductive foam Label any package that contains static sensitive assemblies or components m Discharge the static voltage
35. available from or through the local Tektronix Inc field Replacement Parts office or representative When ordering parts be sure to include the following information in your order 1 2 3 4 Instrument type and option numbers if any Instrument serial number Description of the part as it appears in the electrical or mechanical parts list The Tektronix part number If a part that has been ordered is replaced with a new or improved part the local Tektronix field office or representative will contact you concerning any change in the part number After repair the circuits may need readjustment 5 6 TSG 601 Service Manual Maintenance Torque Specifications Only 4 screws are used in the TSG 601 to secure the case halves together DO NOT USE MORE THAN 3 INCH POUNDS OF TORQUE ON THESE SCREWS Replacing Assemblies WARNING Disconnect the AC adapter and batteries before replacing any components Back Cover Follow this procedure to remove and replace the back cover of the TSG 601 Removal Replacement 1 Remove the four screws securing the back cover to the front cover 2 Gently separate the back cover about 1 inch from the instrument taking care to not pull the rear panel connector panel away with it 3 Disconnect the battery cable from J10 Make sure to pull on the connector housing to do this not the wires The back cover is now free and may be moved away from the instru
36. co sited with odd 1st 3rd 5th etc Y samples in each line Sampling Frequency Luminance Y 13 5 MHz B Y and R Y 6 75 MHz Form of Coding Uniformly quantized PCM 10 bits per sample for the luminance signal and each color differ ence signal Samples Per Digital Active Line Luminance Y 720 B Y andR Y 360 Correspondence Between Video Signal Levels and Quantization Levels Luminance 877 quantization levels with the black level 0 mV corresponding to level 64 and the peak white level 700 mV corresponding to level 940 B Y andR Y 897 quantization levels in the center of the quan tization scale corresponding to 350 mV with zero signal 0 mV corresponding to level 512 TSG 601 Service Manual 1 3 Specifications Table 1 2 Timing Relationships Characteristics Standards Conformance Line Timing 625 50 525 60 Field Timing 625 50 525 60 Timing Reference Signal EAV SAV are protection bits Protection Bit States 1 4 Supplemental Information ANSI SMPTE 125M CCIR Rec 656 and EBU Tech 3267 E See Figure 1 1 See Figure 1 2 See Figure 1 3 See Figure 1 4 Bit Preamble Signal 9 1001 Fixed 8 100F F 1 during field 2 change state when 1 in F 0 during field 1 7 100V V 1 during vertical blanking change state when H 1 in EAV V 0 during active video 6 100H H 1 atstart of horizontal blanking H 1 EAV 0 SAV 5 100P3 4 100P2 Hamming Code 6 3 3 100P1 Even p
37. for the performance of service Customer shall be responsible for packag ing and shipping the defective product to the service center designated by Tektronix with shipping charges prepaid Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located Customer shall be responsible for paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improp er use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or con nection to incompatible equipment c to repair any damage or malfunction caused by the use of non Tektronix supplies or d to service a product that has been modified or integrated with other products when the effect of such modifi cation or integration increases the time or difficulty of servicing the product This warranty is given by Tektronix with respect to this product in lieu of any other warranties express or implied Tektronix and its vendors disclaim any implied warranties of merchantability or fitness for a particular pur pose Tektronix responsibil
38. plug in with 50 input at tenuates signal 2 3X 75 Q BNC termination 0 025 precision Tektronix p n 011 0102 01 50 Q BNC termination 1 Tektronix p n 011 0123 00 AC adapter 1 Std TSG 601 accessory Md MEE No 1 Pozidrive 4 screw driver TSG 601 Service Manual 4 1 Performance Verification and Adjustment Procedures Performance Verification Checklist Use the following checklist if you are familiar with the operation of the TSG 601 and video performance verification techniques NOTE Allow a 20 minute warm up for the TSG 601 and the instruments used for performance verification 1 Serial Digital Output Amplitude Absolute Accuracy and DC Offset Absolute accuracy 800 mV setting 800 20 mV DC offset 0 0 0 5 V 2 Serial Digital Output Amplitude Relative Accuracy Coarse increments 100 8mV Fine increments 20 8 mV 3 Serial Digital Output Rise and Fall Times 400 1000 ps E 20 to 80 amplitude points 4 Serial Digital Output Jitter Less than 360 ps 5 Cable Simulator Return Loss At least 20 dB from 5 MHz to 270 MHz Performance Verification Procedures 4 2 Preparation The order of these procedures has been chosen to minimize changes in equip ment setup Power up the test equipment and the TSG 601 Allow a 20 minute warm up Connect the TSG 601 Serial Output to a 75 50 Q minimum loss attenuator Con nect the other side of the pad to the 11403A through 50 Q cable Configure the 11
39. this list to identify and order replacement parts There is a separate Replaceable Electrical Parts list for each instrument Parts Ordering Information Replacement parts are available from or through your local Tektronix Inc Field Office or representative Changes to Tektronix instruments are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest circuit improvements Therefore when ordering parts it is important to include the following information in your order m Part number m Instrument type or model number m Instrument serial number m Instrument modification number if applicable If a part you have ordered has been replaced with a new or improved part your local Tektronix Inc Field Office or representative will contact you concerning any change in part number Change information if any is located at the rear of this manual Using the Replaceable Electrical Parts List Cross Index Mfr Code Number to Manufacturer Abbreviations List of Assemblies TSG 601 Service Manual The tabular information in the Replaceable Electrical Parts list is arranged for quick retrieval Understanding the structure and features of the list will help you find all of the information you need for ordering replaceable parts The Mfg Code Number to Manufacturer Cross Index for the electrical parts list is located immediately after this page The cross index provides codes
40. tri state mode removing contention from the address and data buses After the configuration routine is completed the FPGA is ready for operation It releases the micropro cessor to start setting up the instrument for operation by holding HDC low One of the tasks the microprocessor has during the instrument setup is loading the fast signal data from the signal flash PROM A1U6 into the SRAMs A1U21 and A1U26 The microprocessor addresses the upper half of memory and reads the data out of A1U6 and then turns around and writes the information into the appropriate SRAM Since the output of the PROM is only eight bits wide and the signal data is ten bits the data is stored in the PROM with the low er eight bits at one location and the two MSBs at the next address The micro processor loads the eight LSBs into A1U26 and the two MSBs into A1U21 During this time the FPGA is outputting a serial video signal at a blanking level with EAV and SAV data After the SRAMs are loaded the microprocessor sets a flag in the FPGA that causes the instrument to enter into the operating sequence mode of operation which is discussed below 3 5 Theory of Operation 3 6 Operating Sequence Watchdog Serializer Return Loss Detector The normal operating sequence for the microprocessor is to poll the keypad ev ery 22 ms for user inputs and to check for a low battery condition The FPGA circuits are reading the signal data from the signal PROM an
41. 01 3632 PO BOX 609 6 4 TSG 601 Service Manual Replaceable Electrical Parts Component Tektronix Serial Assembly Number Mfr Mfr Part Number Part Number Effective Discontinued amp Description Code Number Al 671 2967 00 CIRCUIT BOARD MAIN 80009 671296700 A2 671 2586 01 CIRCUIT BD ASSY KEYBOARD 80009 671258601 119 4506 00 DISPLAY MODULE LCD 16 CHARACTERS X2LINES5X7 6272 M16327 Y DOT MATRIX TRANSFLECTIVE YEL GRN LED A4 671 3227 00 CKT BD ASSY REAR PANEL BOARD 80009 671322700 Al 671 2967 00 CIRCUIT BOARD MAIN 80009 671296700 1 1 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C2 290 5050 00 CAP FXD AL 47UF 20 35V 6 8 DIA MM LOW IMP SMD 11344 MVF35VC47RM8TP A1C3 283 5114 00 CAP FXD CER MLC 0 1UF 1096 50V X7R 1206 04222 12065C104KAT 1A A1C4 283 5282 00 CAP FXD CER MLC 2 2UF 480 2096 16V Y 5V 0 120 X 0 060 04222 1206YG225ZAT2A A1C5 283 5282 00 CAP FXD CER MLC 2 2UF 480 2096 16V Y 5V 0 120 X 0 060 04222 1206YG225ZAT2A A1C6 283 5282 00 CAP FXD CER MLC 2 2UF 480 2096 16V Y 5V 0 120 X 0 060 04222 1206YG225ZAT2A 1 7 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C8 283 5267 00 CAP FXD CER MLC 1UF 80 20 25V Y 5V 1206 04222 1206361057 1 A1C12 283 5283 00 CAP FXD CER MLC 1 5PF 25P F 100V NPO 120X 060 04222 12061A1R5CAT A A1C14 283 5267 00 CAP FXD CER MLC 1UF 80 20 2
42. 010PLCC TEST SIGNAL ROW 2 AO 12 13 ADO Do 922 ROWS 5 1 bi NN FLASH PROM ROWS 5 9 17 ADS 30 2 ROW 6 4 6 43 03 Ha AD4 50 PADS 3 29F010PLCC ROWS 7 5 ale 04 19 ADS 4 FO 12 ag bo 13 FDO ROWO 8 6 05 20 ADs OF BOARD FLASH PROM 5 4 DO 14 FD1 ROW 9 5 49 06 F1 FOR TEST 5 6 FA2 O 4 01 5 Fo 10 27 U4 amp 06 7 9 2 02 17 FD8 COLO T AQ 26108 AT 8 FA 8 43 08 T8 2113 12 A10 23 Ajo AB 9 SQ PADS 7 be pis 05 13 225 9 10 ON BACK FA6 6 5 DS 20 FD6 14 12 4 11 OF BOARD FA 5 6 D6 21 FD7 coL 15 A 28 12 FOR TEST ES 15 14 Aio 23 49 1 A 15 A A10 36 2 15 4 15 25 A19 2 AT 30 16 2 4 3 ATG 17 A3 28 12 4 CWE 18 79 14 29 Ai FAS 5 31 CCE 19 3 14 5 6 a cE oe FA 30 16 FAY 5 9 0 GND b FATS 1 FAS E 50 PADS V KEYBD 4 ON KEY BIS D gt 4 A18 d ON BACK Hi FWE 31 FATO 11 OF BOARD U22B WATCHDOG A gt u2 FE Z Q Gag o 12 FOR TEST XC4013 24 16 T 13 0 d OE S SAFE 16 s 16 1028 58 FAIS A4 15 4 TCXO PGCK2 10 1029 110 30 7 15 16 J15 162 1030 3 ATE A1
43. 02111 1012 151 5044 00 TRANSISTOR PWR BIPOLAR PNP 100V 3 04 3 0MHZAMPL 04713 MJD32CT4 1013 151 5016 00 TRANSISTOR SIG BIPOLAR PNP 20V 30MA 600MHZ AMPL 04713 MMBTH81LT1 AlR1 321 5048 00 RES FXD THICK FILM 332K OHM 1 0 125W TC 100 PPM 57668 MCR18FXEA332K A1R2 321 5047 00 RES FXD THICK FILM 100K 0HM 1 0 125W TC 100 PPM 50139 1003 A1R3 321 5030 00 RES FXD THICK FILM 10 0K OHM 1 0 125W TC 100 PPM 50139 1002 A1R4 321 5000 00 RES FXD THICK FILM 10 OHM 1 0 125W TC 100 91637 CRCW120610ROFT 1 5 307 5041 01 RES NTWK FXD FILM 15 4 7K OHM 2 0 08W EA 91637 50 1601 4726 CH 50PPM A1R6 321 5001 00 RES FXD THICK FILM 12 1 OHM 1 0 125W TC 100 PPM 91637 CRCW120612R1FT A1R8 321 5008 00 RES FXD THICK FILM 150 0HM 1 0 125W TC 100 50139 1500 A1R11 321 5010 00 RES FXD THICK FILM 221 OHM 1 0 125W TC 100 50139 221 A1R12 321 5010 00 RES FXD THICK FILM 221 0HM 1 0 125W TC 100 50139 221 A1R13 321 5008 00 RES FXD THICK FILM 150 0HM 1 0 125W TC 100 50139 1500 AIR14 321 5113 00 RES FXD THICK FILM 75 OHM 1 0 125W TC 100PPM 56845 CRCW1206 75ROFT A1R17 321 5008 00 RES FXD THICK FILM 150 0HM 1 0 125W TC 100 50139 1500 A1R19 321 5029 00 RES FXD THICK FILM 8 25K OHM 1 0 125W TC 100 PPM 50139 BCK8251FT A1R20 321 5029 00 RES FXD THICK FILM 8 25K OHM 1 0 125W TC 100 PPM 50139 8251 A1R22 321 5045 00 RES FXD THICK FILM 68 10HM 1 0 125W TC 100 PPM 50139 BCD68R1FT A1R25 321 5045
44. 1072 72 53 P77 AN17 P47 AD7 A 166 1073 45V 0 84 avon 1074 25 65 AVEREFI psoas 99 PD76597 75 725 A510 1075 75 1 486 aves P51 A9 m 180 Aelio 1076 75 Pi LCD CNST _ 67 eos 32 16 Asno 1081 31 SER CIKIS at VIDEO SRAMs lt SIG_LEVEL r 88 ANO P54 A12 St 12 Us US 185 1082 82 SERCLK TS 45V o 59 AVREF2 P55 A13 A10 IO 1083 83 _ 1 4 Di 70 29 40 61 AT 191 SERIO 9 MTSC2568 F qo 56 14 A11 10 1084 9 100 bids E28 15 21 66 12 199 sao 10 ag Ll soo P20 NMI 200 Arno 1086 9 pa 12 R62 ONKEY 72 Po1 INTPO Peo A16 27 16 mE 203 14 0 1087 se 8 13 100 T SAFE 73 26 AIT 5 7 15 501 73 __ P22 INTPI per at7 28 170 1088 e Da P23 INTP2 Cl P62 A18 1089 A4 D5 R63 ROWA 75 24 19 19 9 775 17 083 ROWS Tg P24 INTPS 63 19 5 TCK IO 1091 Ke 7 5 06 tag 100 Top Torr HOWE 47 P25 INTP4 ASCK 64 55 5 1092 6 07 His 441 ROW TI P26 INTP5 32 1093 09 R64 20 veo 1095 mmm m 9 VA 509 12MHZ 9 ATO 21 gs is ss ERU MODE 46 12 IDSCLK ves 1098 59 SEDMO x A 2 504 ier vove cH ent 55 6 14 IDSTB 112 505 poe 4 5V voc 10112 112 spo NW WA GND t Sp 27
45. 2 12061 102 1 A1C41 283 5203 00 CAP FXD CER MLC 1000PF 10 100V X7R 1206 04222 12061C102KAT1A A1C42 283 5203 00 CAP FXD CER MLC 1000PF 10 100V X7R 1206 04222 12061 102 1 A1C43 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C44 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C45 283 5114 00 CAP FXD CER MLC 0 1UF 1096 50V X7R 1206 04222 12065C104KAT 1A A1C46 283 5114 00 CAP FXD CER MLC 0 1UF 1096 50V X7R 1206 04222 12065C104KAT 1A A1C47 283 5114 00 CAP FXD CER MLC 0 1UF 1096 50V X7R 1206 04222 12065C104KAT 1A A1C48 283 5114 00 CAP FXD CER MLC 0 1UF 1096 50V X7R 1206 04222 12065C104KAT 1A A1C49 283 5114 00 CAP FXD CER MLC 0 1UF 1096 50V X7R 1206 04222 12065C104KAT 1A A1C50 283 5114 00 CAP FXD CER MLC 0 1UF 1096 50V X7R 1206 04222 12065C104KAT 1A A1C51 283 5114 00 CAP FXD CER MLC 0 1UF 1096 50V X7R 1206 04222 12065C104KAT 1A A1C52 283 5114 00 CAP FXD CER MLC 0 1UF 1096 50V X7R 1206 04222 12065C104KAT 1A A1C53 283 5114 00 CAP FXD CER MLC 0 1UF 1096 50V X7R 1206 04222 12065C104KAT 1A A1C54 283 5114 00 CAP FXD CER MLC 0 1UF 1096 50V X7R 1206 04222 12065C104KAT 1A A1C56 290 0943 00 CAP FXD ALUM 47UF 50 20 25V 6 X 11MM 0 1 5 CEUSM1E470 Q A1C57 290 5034 01 CAP FXD ALUM 33UF 20 10V 5 7MM 0 224 1W344 MVK10VC33RME60T A1C58 283 5114 00 CAP FXD CER MLC 0 1UF 1096 50V X7R 1206 04222 12065C104KAT 1A A1C59 283 5203 00 CAP FXD CER MLC 1000PF 10 100V X7R 1206 04222 12061 102 1
46. 403A as follows WAVEFORM MENU Vertical Desc a L1 2 3 Horizontal Desc Main 512 Points Acquire Desc 22 2 2 Continuous Vertical Mag 200 mV Vertical Pos WIM OV 22 aie eT e an Ins Man Pos 2 2 ede 4 ns od 500 TSG 601 Service Manual Performance Verification and Adjustment Procedures Procedures TSG 601 Service Manual Coupling crcr icri bere Se Dee ee DC BW Limites uere ae 1 GHz NOTE Multiplying the vertical scale by 2 3 compensates for the attenuation due to the 75 50 Q minimum loss attenuator TRIGGER MENU THIS SOPs kei Source Description 11 Gevel M a 0 Time 510 ns Mode Auto Coupling u uya ae DC Slope na ay ee RR a Rees MEASURE MENU Amplitude S Rise S 20 to 80 Left Limit 10 Right Limit 95 Fall S 20 to 80 Overshoot S Undershoot S MID DC Level Serial Digital Output Absolute Amplitude Accuracy and DC Offset Absolute amplitude accuracy specification 800 mV 20 mV DC offset specification 0 5 V a Press the
47. 43 00 DIODE SIG SCHTKY SER PAIR 20V 410MV 1 3PF 50434 5 5 2812 31 A1CR6 152 5045 00 DIODE SIG SCHTKY 20V 1 2P F 24 OHM 50434 5 5 2810 31 108 5084 00 COIL RF FERRITE CHIP BEAD 52 OHM TK2058 HF70ACB322513T 25 100MHZ DCR 0 3 400 MA 8MM T amp R 108 5084 00 COIL RF FERRITE CHIP BEAD 52 OHM TK2058 HF 70ACB322513T 25 100MHZ DCR 0 3 OHM IMAX 400 8 T amp R A1F1 159 0363 00 FUSE WIRE LEAD 4A 125V FAST BLOW ULREC CSACERT 75915 251004 11 131 5542 01 CONN BOX PCB BTM ENTRY FEM STR 2X 7 01 0 235 53387 929842 01 07 30 0 125 TAIL 30 GOLD SLDR MASKPOSTS DUAL ENTRY A1 2 131 5543 01 CONN BOX PCB BTM ENTRY FEM STR 2 X 10 0 1CTR 0 23 53387 929842 01 10 30 0 125 30 GLD SLDRMASK POST DUAL ENTRY 15 131 5527 00 J ACK PWR DC PCB MALE RTANG 2MM PIN 11MMH 0 433 X 01 2 005 6 6 3 5MM 0 137 TAIL 9MM 0 354 W TIN W SW DC PWR J ACK TSG 601 Service Manual Replaceable Electrical Parts Component Tektronix Serial Assembly Number Mfr Mfr Part Number Part Number Effective Discontinued amp Description Code Number 16 131 4794 00 CONN HDR PCB MALE STR 1X2 0 1CTR 0 235 53387 2402 6112 UB A1J8 131 0391 00 CONN RF JACK SMB 50OHM STR PCB GOLD GOLD 0 293 24931 32 105 1 0 155 TAIL 3 0 045 SQ TAIL 0 038DIA CTRCOND 0 2 SQ PCB 0 312 110 131 5240 00 CONN HDR PCB MALE STR 1 X 5 0 1 CTR 0 230MLG X
48. 5 ADVANCED MICRO DEVICES 901 THOMPSON PL SUNNYVALE CA 94086 3413 PO BOX 3453 31964 GENNUM CORPORATION 970 FRASER DRIVE BURLINGTON ONTARIO CANADA L7R 3Y3 PO BOX 489 STA A 4T165 NEC ELECTRONICS USA INC 475 ELLIS ST MOUNTAIN VIEW CA 94039 ELECTRON DIV PO BOX 7241 50139 ALLEN BRADLEY CO 1414 ALLEN BRADLEY DR EL PASO TX 79936 ELECTRONIC COMPONENTS 50434 HEWLETT PACKARD CO 370 W TRIMBLE RD SAN J OSE CA 95131 1008 OPTOELECTRONICS DIV 53387 3M COMPANY 3M AUSTIN CENTER AUSTIN TX 78769 2963 ELECTRONIC PRODUCTS DIV 55322 SAMTEC INC 810 PROGRESS BLVD NEW ALBANY IN 47150 2257 PO BOX 1147 55680 NICHICON AMERICA CORP 927 E STATE PKY SCHAUMBURG IL 60195 4526 56845 DALE ELECTRONICS INC 2300 RIVERSIDE BLVD NORFOLK NE 68701 2242 PO BOX 74 57668 ROHM CORPORATION 15375 BARRANCA PARKWAY IRVINE CA 92718 SUITE B207 61429 FOX ELECTRONICS 5842 CORPORATION CIRCLE FOR MEYERS FL 33905 DIV OF FOX ELECTRONICS INC 62712 SEIKO INSTRUMENTS USA 2990 W LOMITA BLVD TORRANCE CA 90505 5102 68994 XILINX INC 2100 LOGIC DRIVE SAN J OSE 95124 75915 LITTELFUSE TRACOR INC 800 E NORTHWEST HWY DES PLAINES IL 60016 3049 SUB OF TRACOR INC 80009 TEKTRONIX INC 14150 SW KARL BRAUN DR BEAVERTON OR 97077 0001 TSG 601 Service Manual PO BOX 500 6 3 Replaceable Electrical Parts Mfr Code Manufacturer Address City State Zip Code 82567 DYNAMICS CORP OF AMERICA 400 W NORTH ST CARLISLE PA 17013 2248 REEVES HOFFMAN DIV 91637 DALE ELECTRONICS INC 2064 12TH AVE COLUMBUS NE 686
49. 5V Y 5V 1206 04222 1206361057 1 1 15 283 5283 00 CAP FXD CER MLC 1 5PF 25PF 100V NPO 120X 060 04222 12061A1R5CAT A A1C16 283 5002 00 CAP FXD CER MLC 1000PF 10 50V NP 0 1206 2058 3216 061 102 A1C17 283 5113 00 CAP FXD CER MLC 0 047UF 10 50V X7R 1206 04222 12065C473KATIA A1C18 283 5279 00 CAP FXD CER MLC 0 47UF 10 50V X7R 180X 250 04222 18255 474 1 A1C19 283 5003 00 CAP FXD CER MLC 0 01UF 10 50V X7R 1206 TK2058 C3216X7R1H103K A1C26 283 5003 00 CAP FXD CER MLC 0 01UF 10 50V X7R 1206 TK2058 C3216X7R1H103K A1C27 283 5200 00 CAP FXD CER DI 0 47UF 80 20 50V 04222 18125E4742AT1A A1C28 283 5200 00 CAP FXD CER DI 0 47UF 80 20 50V 04222 18125 4747 1 A1C29 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C30 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C31 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C33 283 5114 00 CAP FXD CER MLC 0 1UF 1096 50V X7R 1206 04222 12065C104KAT 1A A1C34 283 5003 00 CAP FXD CER MLC 0 01UF 10 50V X7R 1206 TK2058 C3216X7R1H103K A1C36 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C37 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C38 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C39 283 5114 00 CAP FXD CER MLC 0 1UF 10 50V X7R 1206 04222 12065C104KAT 1A A1C40 283 5203 00 CAP FXD CER MLC 1000PF 10 100V X7R 1206 0422
50. 6 17 PGCK4 A1 10 1031 AS 204 32 FWE FWE 18 a MAX1232 OSCNC LODE 47 56 15 1032 33 FCE 19 AWAKE 7 5 14 TAHCTDA 100 59 2 0 1033 84 FOE FOE 202 AWAKE 7 sr RST voc AEN osc 100 1034 34 4 5 y 22 7 GND 52 SGCK4 DOUT IO 1035 39 om 3 9 Past b 8 NG 48 1 Wo 1036 38 MAN FOE oe CONFIG 56 My 1938 39 52 8 40 4 RESET 108 1040 441 LCD RW GND lt PROGRAM 1041 103 42 IDHSYNC DONE 1042 926 SA14 148 43 IDVSYNC RDY BUSY IO 1043 HDC 58 44 TD 1 HDC IO 1044 62 45 DCHA 2 Lociio 1045 48 C66 C85 4 bo INITIO 1046 46 Do SQ Fans R2 100PF CR6 MICROPROCESSOR 1059 760 17 5 ON BACK Ni 138 61 6 OF BOARD 05 Vin 132 1961 63 FAT 7 FOR TEST UPD78237QFP 4 Norm 128 0310 1063 64 FATS 8 25 BAILO 56 proyan o 43 ____ Va 122 0510 1065 8 ES VSET 57 P71 AN11 payan 42 io 112 06 0 1066 66 58 P72 AN12 P42 AD2 i 2 ad 18 0710 1068 88 100 P73 AN13 P43 AD3 1069 ROWO 60 P74 AN14 paajapa 35 ADA 165 51 2 1070 20 ROWT 61 38 ADS 20 1 SA2 133 71 ROW 62 P7S ANIS PASJADS 37 ADG 21 80 161 8510 1071 2 ROW 6 P76 AN16 PAG ADG 57 WS A0 10
51. A 80009 TEKTRONIX INC TSG 601 Service Manual 4300 5 RACINE AVE 3910 INDUSTRIAL AVE 14181 SW MILLIKAN WAY 7973 SW CIRRUS DRIVE BLDG 22 186 VETERANS DRIVE 2990 W LOMITA BLVD 14150 SW KARL BRAUN DR PO BOX 500 CHICAGO IL 60609 3320 COEUR D ALENE ID 83814 BEAVERTON OR 97077 BEAVERTON OR 97005 NORTHVALE 07647 TORRANCE 90505 5102 BEAVERTON OR 97077 0001 8 3 Replaceable Mechanical Parts Fig amp Index Tektronix Serial Number Mfr No Part No Effective Dscont Qty 12345 Name amp Description Code Part No 1 1 614 0913 00 1 KIT ASSEMBLY BATTERY HOLDER SUB ASSEMBLY 80009 614091300 MOUNTING PARTS 2 211 0097 00 4 SCREW MACHINE 4 40 X 0 312 P NH STL TK0435 ORDER BY DESC END MOUNTING PARTS 3 348 1347 00 4 PAD CUSHIONING TSG90 80009 348134700 4 200 4075 00 1 DOOR BATTERY POLY CARBONATE TK1155 200 4075 00 5 333 4145 00 1 REAR PANEL PLASTIC TSG601 80009 333414500 6 1 BD ASSY REAR PANEL BOARD SEE A4 REPL MOUNTING PARTS 7 211 0661 00 3 SCR ASSEM WSHR 4 40 X 0 25 PNH STL CD PL POZ MACH TK0435 ORDER BY DESC 8 214 4661 00 1 SPRING EMI CNTC SPRING EMI CONTACT 0 004 CU BE 80009 214466100 HEAT TREAT TO HARD 0 0003 INCH MIN TINMATE TSG601 END MOUNTING PARTS 4 1 CIRCUIT BOARD MAIN SEE Al REPL 10 426 2408 00 1 SPACER ECB ABS BLACK TSG601 80009 426240800 rn 1 CIRCUIT BD ASSY KEYBOARD SEE A2 REPL 12 119 4709 00 1 KEYPAD TSG601 80009 119470900
52. FILM 100 1 0 125 100 50139 1000 A1R65 321 5006 00 RES FXD THICK FILM 100 OHM 1 0 125W TC 2100 50139 1000 A1R66 321 5006 00 RES FXD THICK FILM 100 1 0 125 100 50139 1000 A1R67 321 5006 00 RES FXD THICK FILM 100 1 0 125 100 50139 1000 A1R68 321 5006 00 RES FXD THICK FILM 100 OHM 196 0 125W TC 2100 50139 1000 A1R69 321 5006 00 RES FXD THICK FILM 100 1 0 125 100 50139 1000 A1R70 321 5006 00 RES FXD THICK FILM 100 1 0 125 100 50139 1000 A1R71 321 5018 00 RES FXD THICK FILM 1 0K OHM 1 0 125W TC 2100 PPM 50139 00 A1R72 321 5030 00 RES FXD THICK FILM 10 0K OHM 1 0 125W TC 100 PPM 50139 1002 A1R73 321 5030 00 RES FXD THICK FILM 10 0K OHM 1 0 125W TC 100 PPM 50139 1002 A1R74 321 5047 00 RES FXD THICK FILM 100K OHM 1 0 125W TC 100 PPM 50139 1003 A1R75 321 5166 00 RES FXD THICK FILM 150K OHM 1 0 125W TC 100 PPM 91637 CRCW1206 1503FT A1R76 321 5048 00 RES FXD THICK FILM 332K OHM 1 0 125W TC 100 PPM 57668 MCR18FXEA332K A1R77 321 5049 00 RES FXD THICK FILM 1M OHM 1 0 125W TC 100PPM 57668 MCR18FXEA1M A1R78 321 5010 00 RES FXD THICK FILM 221 OHM 196 0 125W TC 2100 50139 221 A1R79 321 5045 00 RES FXD THICK FILM 68 1 OHM 1 0 125W TC 2100 PPM 50139 BCD68RIFT A1R80 321 5022 00 RES FXD THICK FILM 2 21K OHM 1 0 125W TC 100 PPM 50139 BCK221IFT A1R81 321 5024 00
53. IAL NUMBER RANGES PART OF 1 MAIN BOARD INSTRUMENT NAME VERTICAL INPUT Al SCHEMATIC NAME amp NUMBER 4 ASSEMBLY NUMBER A 1 45 COMPONENT LOCATOR GRID 7 2 TSG 601 Service Manual TSG 601 6 Static Sensitive Devices See Maintenance Section Assembly A2 schematic diagram has an alphanumeric grid to assist in locating parts within that diagram Schematic Diagram lt 1 gt Component Locator Chart A2 Key Board Comp Diag Bd Comp Diag Bd Comp Diag Bd No Loc Loc No Loc Loc No Loc Loc Ji H1 B6 S14 D3 C4 S28 B4 A5 S29 C4 B5 1 1 1 515 03 52 A1 A1 16 02 c3 530 04 5 3 A2 A2 S17 D2 c2 631 D3 C4 S4 A2 A3 18 01 532 03 55 519 01 533 2 534 02 C2 S6 A3 4 520 D1 B1 57 4 5 21 B1 35 D1 C2 S8 4 C1 S22 B1 1 36 B1 59 4 5 523 B1 1 37 C2 B2 S24 B2 A2 S38 C2 B3 S10 C4 B5 S39 B3 S11 04 C5 S25 B2 A3 12 04 C5 526 540 B4 13 D4 5 627 4 541 G2 A5 TSG 601
54. Lines 83 166 105 mV Lines 167 250 Field Timing 525 60 700 mV Lines 72 142 105 mV Lines 143 212 TSG 601 Service Manual Specifications Table 1 3 Test Signal Characteristics Cont Characteristic Pluge BBC 2 Field Timing 625 50 700 mV 450 mV 200 mV 110 mV Field Timing 525 60 700 mV 450 mV 200 mV 110 mV 5 Step Staircase Amplitude Y Channel B Y R Y Mod 5 Step Amplitude Y Channel 525 B Y R Y 625 B Y 625 R Y Limit Ramp Shallow Ramp Amplitude Pedestal variable Y Channel B Y R Y Rise Times Y Channel B Y R Y Mod Pulse and Bar 625 lines 50 Hz 4 Pulse HAD 10T Pulse HAD Pulse Amplitude Y B Y R Y 2T Pulse HAD 1 8 Supplemental Information See Figures 1 12 and 1 13 and Table 1 11 ines 63 114 ines 115 166 ines 167 218 ines 219 270 rn Lines 55 98 Lines 99 142 Lines 143 185 L 5 5 186 229 ee Figures 1 14 and 1 15 and Table 1 12 0 to 702 4 mV in 176 word steps 351 6 to 351 6 mV in 180 word steps See Figures 1 14 1 16 and 1 17 and Table 1 12 0 to 702 4 mV in 176 word steps 157 3 mV 83 7 mV 94 4 mV See Figures 1 18 and 1 19 In 8 bit extends from word 01 to 254 in 10 bit extends from word 04 to 1016 See Figures 1 20 and 1 21 80 0 to 700 350 to 350 mV 200 ns 280 ns See Figures 1 22 1 23 and 1 24 400 ns 1000 ns 1 0 us 350 0 mV 196 3 mV 248 1 mV 200 ns Y channel only TSG 601 Service Manual Specificatio
55. OL caro 3 4 Microprocessor ana 3 4 Startup 3 5 Operating Sequence 3 6 Watchdogs eer ae Ra pq 3 6 x 3 6 Return Loss Detector 3 6 EEDDisplay dis ee 3 7 Power Supply T aan 3 7 TSG 601 Service Manual vii Contents 50 m Cable Simulator 3 7 Performance Verification and Adjustment Procedures 4 1 Required Test Equipment 4 1 Performance Verification Checklist 4 2 Performance Verification Procedures 4 2 Preparation eto 4 2 Procedures 4 3 Adjustment Procedures 4 6 Maintenance A DLE AAA 5 1 Battery Hints UD asas 5 1 The BATTERY LOW Message 5 1 Low Battery Shut Down 5 1 Preventive Maintenance 5 2 Cleaning isc onal 5 2 Static Sensitive Components 5 2 Troubleshooting Aids 5 3 Foldout Pages
56. OUNTED ON THE BACK OF THE BOARD 1 MAIN BOARD 50 CABLE SIMULATOR SERIAL VIDEO OUTPUT J3 A4 I O BOARD APPROX 50 M CABLE POWER SUPPLY AND PANEL 1 4 Replaceable Mechanical Parts A Replaceable Mechanical Parts This section contains a list of the components that are replaceable for the TSG 601 Use this list to identify and order replacement parts There is a separate Replaceable Mechanical Parts list for each instrument Parts Ordering Information Replacement parts are available from or through your local Tektronix Inc Field Office or representative Changes to Tektronix instruments are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest circuit improvements Therefore when ordering parts it is important to include the following information in your order m Part number m Instrument type or model number m Instrument serial number m Instrument modification number if applicable If a part you have ordered has been replaced with a new or improved part your local Tektronix Inc Field Office or representative will contact you concerning any change in part number Change information if any is located at the rear of this manual Using the Replaceable Mechanical Parts List The tabular information in the Replaceable Mechanical Parts list is arranged for quick re
57. Output Ampl button on the TSG 601 and check for an 800 mV output amplitude b Use the 11403A to verify that the signal meets the above specifications Serial Digital Output Signal Amplitude Relative Accuracy Coarse increments specification 100 8 mV Fine increments specification 20 8 mV a Press the TSG 601 key until 700 mV appears on the LCD b On the 11403A verify that the signal amplitude is 700 8 mV Press gt once so that 720 mV is displayed on the TSG 601 LCD d On the 11403A verify that the signal amplitude is 720 8 mV Press the TSG 601 until 900 mV appears on the LCD 4 3 Performance Verification and Adjustment Procedures 4 4 f 5 h On the 11403A verify that the signal amplitude is 900 8 mV Press so that 880 mV 15 displayed on the TSG 601 LCD On the 11403A verify that the signal amplitude is 880 8 mV Serial Digital Output Rise and Fall Times Specification 400 1000 ps 20 to 80 amplitude points a b Verify on the 11403A that the rise time is between 400 and 1000 ps Enter the 11403A TRIGGER menu and set the slope to Return to the MEASURE menu Verify that the fall time is between 400 and 1000 ps Serial Digital Output Jitter Specification less than 360 ps a Configure the 11403A as follows WAVEFORM MENU Vertical iii Seed L1 2 3 Horizontal Main 512 Points Acquire
58. RES FXD THICK FILM 3 32K OHM 1 0 125W TC 100 PPM 50139 BCK3321FT A1R82 321 5000 00 RES FXD THICK FILM 10 OHM 196 0 125W TC 2100P P M 91637 CRCW120610ROFT A1R83 321 5009 00 RES FXD THICK FILM 182 OHM 196 0 125W TC 2100 50139 1820 A1R84 321 5045 00 RES FXD THICK FILM 68 1 OHM 1 0 125W TC 2100 PPM 50139 BCD68RIFT 1 214 4085 00 TERM TEST POINT 0 070 ID 0 220 H 0 063 DIAPCB 0 015 X 26364 104 01 02 0 032 BRASS W RED NYLON COLLAR 1 4 214 4085 00 TERM TEST POINT 0 070 ID 0 220 H 0 063 DIAPCB 0 015 X 26364 104 01 02 0 032 BRASS W RED NYLON COLLAR A1U 156 5074 02 IC DIGITAL HCMOS FLIP FLOP DUAL D TYPE 01295 SN74HC74DR A1U2 156 6871 00 IC DIGITAL CMOS PLD FPGA XC4000 FAMILY 4013 576 68994 4013 5 0208 CLBS 192 10BS 160 1 0 5 NS A1U3 156 6714 00 IC LINEAR BIPOLAR SW REGULATOR STEP DOWN BU 27014 LM2574M 5 0 CK 5 0V 500MA 4 SHUTDOWN 104 156 6663 00 IC MEMORY CMOS EPROM 128K X 8 120NS 5V 34335 29 010 120 A1U5 156 6661 00 IC PROCESSOR CMOS MICRO COMPUTER 8 BIT 1K 47165 UPD78237GC 3B9 A D D A 12MHZ A1U6 156 6663 00 IC MEMORY CMOS EPROM 128K X 8 120NS 5V 34335 29 010 120 A1U7 156 6664 00 IC MISC CMOS INTERFACE DUAL RS 232DRIVER RECEIV 1 566 243 5 ER 5V VCC NEG INPUT THRESHOLD ON ONE RECEIVER A1U8 156 6665 00 IC MISC CMOS PWR SUPPLY SUPERVISOR MPU RESET 1 566 MAX1232CSA C74 GEN 5V SUPPLY SENSING MPU WATCHDOGTIMER A1U9 156 6491 00 IC MEMORY CMOS ROM 12 LINES X 24 COL
59. Recall menu 2 7 Operating Information Setting up an ID Cycle 2 8 me quod Enter the ID menu press Shift then ID On Off if necessary With the A and keys scroll to the Position ID menu item Press ENTER Use the arrow keys to move the message horizontally H and vertically V in the picture When the ID occupies the desired position press ENTER to save the new location in memory and return to the ID menu If you press any rectangular key instead of ENTER the ID will remain in its new position but will revert to the original location the next time it is recalled from memory As usual press any rectangular key to exit the ID menu Edit and save the ID messages that you want to cycle see Editing ID messages page 2 7 Note the numbers of the IDs and the order in which they should appear Scroll through the ID menu to reach the ID Cycle Setup item then press ENTER The display will resemble the following illustration Cycle ID 5eauenc 155 ENTER Use the 4 keys to move the underline cursor to one of the four sequence time intervals The IDs will appear in the order that their numbers appear from left to right on the display Use the A v keys to select the number of the ID to appear during each interval Choose the hyphen it s below 1 to eliminate the interval If you want a blank interval that is a time gap between ID messages you must create an all blank ID to put i
60. Service Manual Tektronix TSG 601 Serial Digital Generator 070 8911 02 Warning The servicing instructions are for use by qualified personnel only To avoid personal injury do not perform any servicing unless you are qualified to do so Refer to the Safety Summary prior to performing service Copyright o Tektronix Inc 1994 rights reserved Printed in U S A Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supersedes that in all previously published material Specifications and price change privileges reserved The fol lowing are registered trademarks TEKTRONIX and TEK For further information contact Tektronix Inc Corporate Offices P O Box 1000 Wilsonville OR 97070 1000 USA Phone 503 627 7111 TLX 192825 TWX 910 467 8708 Cable TEKWSGT Warranty TSG 601 Service Manual Tektronix warrants that the TSG 601 Serial Digital Generator will be free from defects in materials and workmanship for a period of one 1 year from the date of shipment If this product proves defective during the warranty period Tektro nix at its option either will repair the defective product without charge for parts and labor or will provide a replacement in exchange for the defective product In order to obtain service under this warranty Customer must notify Tektronix of the defect before expiration of the warranty period and make suitable arrange ments
61. Suitable Environment This product contains a Nickel Cadmium NiCd battery which must be recycled or disposed of properly For the location of a local battery recycler in the U S or Canada please contact RBRC 800 BATTERY Rechargeable Battery Recycling Corp 800 227 7379 P O Box 141870 www rbrc com Gainesville Florida 32614 Observe and follow all ratings and markings on the product Consult the product manual s for further ratings information before making any connections to the product This product is intended to be connected to electrical devices with their common at ground potential Do not connect to elevated or floating common voltages Do not operate this product in wet damp conditions or locations This product is not designed for use in an explosive atmosphere Service Safety Summary Use the Proper Fuse TSG 601 Service Manual Only qualified personnel should perform service procedures Read this Service Safety Summary and the General Safety Summary before performing any service procedures Use only the type and rating fuse specified for this product xiii XIV TSG 601 Service Manual E AAA Specifications Specifications Introduction The material in this section is organized into two main groupings the specifica tion tables and the supporting figures The specification tables include General signal characteristics and specifications m Signal level specifications Power supply p
62. UMN TV 80009 156649100 A1U10 156 5588 01 IC LINEAR BIPOLAR V REF P0S 2 5V 1 0 40PPM SERIES 04713 C1403DR2 A1U11 155 0416 00 IC ASIC BIPOLAR VIDEO SERIALZER FULLCUSTOM M763 2598 155041600 6 8 TSG 601 Service Manual Replaceable Electrical Parts Component Tektronix Serial Assembly Number Mfr Mfr Part Number Part Number Effective Discontinued amp Description Code Number A1U13 156 6666 00 IC LINEAR BIPOLAR AMP IF DETECTOR FSK DATA 04713 130550 SHAPER W RSS 1016 156 6668 00 IC MISC ECL MISC GENLINX DRVR W TWO ADJ UST 37964 059008 OUTPUTS A1U18 156 6660 00 IC ASIC BIPOLAR CUSTOM DESERIALIZ 80009 156 6660 00 ER SC2307 00 PLCC44 1 20 156 6669 00 IC ASIC GATE ARRAY ENOLA VIDEO CO PROCESSOR 27014 SCX6B21AODNO A1U21 156 6794 00 IC MEMORY CMOS SRAM 32KX8 15N5 5C2568 50 28 300 TK2519 57 256 15 A1U22 156 5081 01 IC DIGITAL HCTCMOS GATE HEX INVERTER 0 804 TC74HCTO4AFN EL 1023 156 6867 00 IC MEMORY CMOS ROM 12 LINES X 24 COLUMN TV 80009 156686700 1 25 156 5441 01 IC LINEAR BIPOLAR VOLTAGE REGULATOR POSITIVE AD 27014 1 2951 J USTABLE 100MA 2 MICROPOWER 1026 156 6794 00 IC MEMORY CMOS SRAM 32K X 8 15 5 5 2568 50 28 300 2519 AS7C256 15 C A1VR1 152 5046 00 DIODE ZENER 20V 5 225MW 04713 75250 1 1 A1VR2 152 5046 00 DIODE ZENER 20V 596 225MW 04713 75250 1 1 A1Y1 158 0449 00 OSCILLATOR TCX0 27MHZ 1PPM 5PPM MIN ADJUSTIBIL 82567 03 33336 001
63. anual Contents List of Tables TSG 601 Service Manual Figure 1 7 75 Color Bars R Y Figure 1 8 100 Color Bars Figure 1 9 100 Color Bars B Y Figure 1 10 Figure 1 11 Figure 1 12 Figure 1 13 Figure 1 14 Figure 1 15 Figure 1 16 Figure 1 17 Figure 1 18 Figure 1 19 Figure 1 20 Figure 1 21 Figure 1 22 Figure 1 23 Figure 1 24 Figure 1 25 Figure 1 26 Figure 1 27 Figure 1 28 Figure 1 29 Figure 1 30 Figure 1 31 Figure 1 32 Figure 1 33 Figure 1 34 Figure 1 35 Figure 1 36 Figure 1 37 100 Color Bars R Y Pliget iaa 625 Line Pluge 2 Y Channel Only 525 Line 2 Y Only 5 Step Staircase and Modulated 5 Step Y 5 Step Staircase B Y and 625 Line Modulated 5 Step B Y and R Y 525 Line Modulated 5 Step and R Y Limit Ramp Y ioo au a Limit Ramp B Y and Shallow Ramp Shallow Ramp B Y and 625 Line Mod Pulse and Bar 625 Line Mod Pulse and Bar B Y 625 Line Mod Pulse and Bar R Y 525 Line Mod Pulse and Bar 525 Line Mod Pulse and Bar 525 Line Mod Pulse and Bar R Y
64. arity bits 1 6 2 100P0 1 0000 0 0000 1 F V H P3 P2 P1 9 8 1 6 5 4 3 2 1 0 1 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 0 1 0 0 1 0 1 0 1 0 1 1 0 0 1 0 1 1 0 1 1 0 0 0 1 1 0 0 0 1 1 1 0 0 1 1 0 1 1 0 1 0 0 0 1 1 1 0 1 1 0 0 0 0 1 1 1 1 0 0 0 1 0 0 TSG 601 Service Manual Specifications Time reference point Word 1464 line scanning f 0H 0H Analog Line 1440 words 0 1439 ____ 4 2 045 4 words timing ref ref timing ref 264 words 5 24 0 lt lt Digital horizontal blanking gr Digital active line gt Digital line Figure 1 1 Analog Digital Line Timing 625 50 Systems Word 1471 Location x Digital Active Line Digital Blanking 1440 Words lt 276 Words 0 1439 Total Line 1440 1715 1716 Words 0 1715 4wor 4wor timing ref 268 Words timing ref EAV SAV Figure 1 2 Analog Digital Line Timing 525 60 Systems TSG 601 Service Manual 1 5 Specifications FIRST FIELD Analog fieid blanking 25 lines line blanking first field A 1 He 2 18 Analog sync waveform first field Digital field blanking first field lt _ pes digital ine Blanking SSS n mcd video igitalfirstfield Ancillary Digital video data Digital data stream data data F 11 11 00 00 00 00 00 00 00 00 00 00 vo 11 11 17 11 11 11 11
65. ath page 2 9 Save all current instrument settings as a Preset for later recall page 2 9 Connect the Serial Video Output of the instrument to your system Use 75 Q cable and be sure that the signal path is terminated properly SERIAL VIDEO gt OUTPUT 2 APPROX pom A CABLE 4 Power the TSG 601 page 2 1 and switch it on By default the instrument will begin with most settings that were in effect when it was switched off Two exceptions all video component channels will be ON see page 2 5 and the output amplitude will be 800 mV Select the appropriate serial video standard 625 50 or 525 60 through the Diagnostic menu pages 5 4 5 6 Return to normal operation by pressing the Test Signals key Select the desired test signal one of three ways Press the Test Signals key repeatedly until the name of the signal you want appears on the display The signal will be output as soon as the name is visible Or Use the A and v keys to scroll through the list of signals until you get to the desired signal Or Press the appropriate letter key A through P to Direct Select the signal The available signals and their corresponding keys are listed in the following table TSG 601 Service Manual Operating Information Test Signal Direct Select Key 75 Color Bars 100 Color Bars Pluge 1 BBC 1 P luge 2 BBC 2 5 Step Staircase Limit Ramp
66. ble gt 20 dB from 5 MHz to 270 MHz TSG 601 Service Manual Specifications Table 1 6 Character Identification Characteristic Information Number of Characters Displayed Two lines of up to 16 Characters per line Display Position Moveable over the Safe Action area ofthe field Character Amplitude Black 70 mV equivalent White 630 mV equivalent Table 1 7 Power Supply Characteristic Performance Requirements Supplemental Information DC InputRange 9to 15 VDC Supply Accuracy 50 5 V 250 5 5 V 250 Hum 5D 5 Noise 5D lt 5 MHz Bandwidth Fuse A fast blow 32 V min Power Limit Without adapter 5 0 W With adapter 6 0 W Power Consumption Typical Back light off 4 0W Back light on 45W Table 1 8 Physical Characteristics Characteristic Information Height 5 6 cm 2 2 in Width 9 1 cm 3 6 in Depth 19 1 cm 7 5 in Net Weight TSG 601 0 48 kg 1 06 lb TSG 601 with battery pack 0 68 kg 1 5 lb Shipping Weight with AC adapter 1 50 kg 3 31 lb TSG 601 Service Manual 1 11 Specifications Table 1 9 Environmental Characteristics Characteristic Temperature Operating Storage Altitude Operating Storage Equipment Type Equipment Class Installation Category Pollution Degree Transportation Waveform Diagrams 700 0 0 us Figure 1 5 75 Color Bars Y 1 12 Information 0 C to 435 32 to 95 F 309 C to 65 22 to 149
67. cision 50 cable from the spectrum analyzer TG Output to the RF Input on the RF Bridge Select Demod TG on the spectrum analyzer Turn on the Tracking Generator and set the Tracking Generator Fixed Level to 0 00 dBm Set the spectrum analyzer Span Div to 50 MHz the Vertical Scale to 10 dB Frequency range to 300 MHz and the Resolution Bandwidth to 300 kHz Set the spectrum analyzer Reference Level to the first major division down from the top on the analyzer display Remove one of the cables from the RF Bridge Set the spectrum analyzer Frequency Cursor to 250 MHz and then set the Marker to 270 MHz Reconnect the cable to the RF Bridge Note the Reference Level Readout In the Input Menu adjust the spectrum analyzer External Attenuation Amplitude by the amount noted in the previous step Note The Reference Level Readout should now be 0 00 dBm Connect the precision high frequency terminator to the Device Under Test connector on the RF Bridge Verify that the frequency response from 5 MHz to 270 MHz is 20 dB This check verifies that you have a good terminator Return the spectrum analyzer frequency marker to 270 MHz if it was moved 4 5 Performance Verification and Adjustment Procedures Adjustment Procedures 1 4 6 Remove the precision high frequency terminator from the RF Bridge Use a 75 2 male to male BNC connector to attach the Device Under Test connector on the RF Bridge to one of the cabl
68. cription Overview TSG 601 Service Manual The block diagram consists of the following major blocks Interface The interface allows the user to control the operation of the instrument The TSG 601 has two standard methods of interfacing with the user One method 1s input through the instrument keypad and the other method is output through the liquid crystal display LCD The LCD consists of two lines with 16 characters per line There is an alternate method of input through an internal RS 232 port but this is used for manufacturing purposes only Controller The TSG 601 uses a microprocessor controller A1U5 whose function 1s to control the operation of the instrument It does so by polling the different inputs keyboard or RS 232 port battery low condition and improper termina tion and then responding accordingly Logic The logic of the TSG 601 is contained in a FPGA A1U2 The logic in the FPGA can be blocked into three major groups Extended memory access for the microprocessor to peripheral circuits The FPGA decodes the upper address from the microprocessor and enables the appropriate circuits to read or write data from to the microprocessor Table 3 1 lists the memory addresses for the various circuits The eight lower address bits of the microprocessor are multiplexed on the same lines as the data AD 0 7 The FPGA latches these bits with the ASTB address strobe line and outputs them as 0 7 m Horizontal a
69. d SRAMs and pro cessing the data to add character ID SAV and EAV and CRC ancillary data Once the signal is complete it is output to the serializer A1U11 scrambled to form the NRZI non return to zero inverse sequence using the following polyno mials Gl 4 1 G2 x 1 NRZI is polarity insensitive video data scrambling scheme in which 0 change in logic and 1 a transition from one logic level to the other The watchdog A1U8 monitors the level of the 5 supply as well as the mi croprocessor and FPGA for a lockup condition If the 5 V supply exceeds a 10 tolerance the watchdog will pull its reset line low until the tolerance condition is removed When the reset line is pulled low the FPGA is put into its reconfigure mode which in turn resets the microprocessor The watchdog also must receive a pulse at least every 250 ms on the AWAKE line or it will reset the FPGA The FPGA normally outputs the ASTB address strobe line from the microprocessor as the AWAKE signal During a write or erase operation to the flash PROM A1U4 the microprocessor is put into a WAIT mode by the FPGA the WAIT line is pulled low for a period of time that may be longer than 250 ms During the wait time the FPGA outputs a field pulse to keep the watchdog from resetting The field pulse is a square wave with a cycle time of 33 3 ms 40 ms PAL The serializer A1U11 receives 10 bit data words and a 27 MHz clock fro
70. d level The level depends on the Battery Type set in the diagnostic menu see page 5 5 The TSG will operate for approximately ten minutes after the message first appears For best results replace or recharge the batteries when you first see this warning To prevent erratic operation at very low power levels the TSG 601 will shut it self down if the battery voltage drops below a second lower threshold that also depends on the Battery Type setting Low battery shut down can happen with little or no warning if for instance the instrument has been left on by mistake with Auto Power Down disabled In such cases the TSG 601 is likely to shut itself down almost immediately the next time you switch it on If this happens m Install fresh batteries or operate the instrument with the AC adapter and m Confirm that the diagnostic menu Battery Type setting is appropriate The shut down threshold is higher for rechargeable batteries than for disposable Therefore you will receive a false BATTERY LOW message and may ence premature shut down if using Alkaline batteries when the Battery Type is 5 1 Maintenance set to rechargeable On the other hand NiCad batteries may be damaged they can lose their rechargeability 1f they are discharged to the TSG 601 threshold for disposable batteries Be sure to select the correct Battery Type Preventive Maintenance 5 2 Cleaning Static Sensitive Components A
71. dard Compliance The following safety standards apply to the TSG 601 EMI Compliance ANSI 582 Safety Standard for Electrical and Electronic Test Measuring Controlling and Related Equipment 1988 CAN CSA C22 2 No 231 M89 CSA Safety Requirements for Electrical and Electronic Measuring and Test Equipment IEC1010 1 Safety Requirements for Electrical Equipment for Measure ment Control and Laboratory Use 1990 UL1244 Standard for Electrical and Electronic Measuring and Testing Equipment Second Edition 1980 The following electromagnetic interference standards apply to the TSG 601 m 47 CFR Chapter 1 FCC Rules Part 15 Class 50081 1 Generic Emission Standard Part 1 Residential commercial and light industry m EN 50 082 1 Generic Immunity Standard Part 1 Residential commercial and light industry NOTE Shielded cables were used in the certification of this instrument therefore shielded cables are recommended to be used when operating EC 92 TSG 601 Service Manual Specifications Specification Tables Table 1 1 Encoding Parameters Characteristic Performance Requirements Supplemental Information Standards Conformance CCIR rec 601 Coded Signals B Y and R Y Samples Per Complete Line 525 60 625 50 Luminance Y 858 864 Color Difference B Y R Y 429 432 Sampling Structure Orthogonal line field and picture repetitive R Y and B Y samples
72. e TK2058 CORPORATION OF AMERICA 1600 FEEHANVILLE DRIVE MOUNT PROSPECT IL 60056 TK2073 TOKYO AMERICA INC 565 W GULF ROAD ARLINGTON HEIGHTS IL 60005 TK2519 ALLIANCE SEMICONDUCTOR 1930 ZANKER ROAD SAN JOSE CA 95112 TK2598 MAXIM ASIC 120 SAN GABRIEL DRIVE SUNNYVALE CA 94086 OHIN5 TOSHIBA MARCON ELECTRONICS 998 FIRST EDGE DRIVE VERNON HILLS IL 60061 AMERICA CORPORATION 0 R03 ZMAN MAGNETICS INC 7633 5 180th 98032 0 R04 TOSHIBA AMERICA INC 9775 TOLEDO WAY IRVINE CA 92718 ELECTRONICS COMPONENTS DIV OLXM2 LZR ELECTRONICS INC 8051 CESSNA AVENUE GAITHERSBURG MD 20879 00779 AMP INC 2800 FULLING MILL HARRISBURG PA 17105 PO BOX 3608 01295 TEXAS INSTRUMENTS INC 13500 N CENTRAL EXPY DALLAS TX 75262 5303 SEMICONDUCTOR GROUP PO BOX 655303 04222 AVX KYOCERA 19TH AVE SOUTH MYRTLE BEACH SC 29577 DIV OF AVX CORP 0 BOX 867 04713 MOTOROLA INC 5005 E MCDOWELL RD PHOENIX AZ 85008 4229 SEMICONDUCTOR PRODUCTS SECTOR 09969 DALE ELECTRONICS INC EAST HIGHWAY 50 YANKTON SD 57078 0 BOX 180 1ES66 MAXIM INTEGRATED PRODUCTS INC 120 SAN GABRIEL DRIVE SUNNYVALE CA 94086 1W344 UNITED CHEMI CON INC 17856 SILICONIX INC 2201 LAURELWOOD RD SANTA CLARA CA 95054 1516 22526 BERG ELECTRONICS INC DUPONT 857 OLD TRAIL RD ETTERS PA 17319 24931 SPECIALTY CONNECTOR CO INC 2100 EARLY WOOD DR FRANKLIN IN 46131 PO BOX 547 26364 COMPONENTS CORP 6 KINSEY PLACE DENVILLE NJ 07834 2611 27014 NATIONAL SEMICONDUCTOR CORP 2900 SEMICONDUCTOR DR SANTA CLARA CA 95051 0606 3433
73. e simulator BNCs Terminate the remaining side of the loopthrough with a 75 terminator Verify that the Reference Level Readout on the spectrum analyzer 15 gt 25 dBm Termination Detection a Usea 1 Pozidrive screwdriver to remove the four screws found on the back of the instrument Carefully pull the top and bottom halves of the instrument approximately one inch apart then disconnect the ribbon cable from the top keypad half Connect two 75 BNC terminators together Place the terminators on the TSG 601 Serial Video Output Connect the AC adapter and switch the TSG 601 on Place the instrument on its right hand side AC adapter plug pointing up with the display end of the instrument farthest away from you you will be making an adjustment on the main board while looking at the instrument s display Adjust R31 counterclockwise until the flashing MN symbol just appears Replace the two 75 terminators with a 50 terminator Verify that the symbol does not appear TSG 601 Service Manual Performance Verification and Adjustment Procedures TSG 601 Service Manual h To reassemble the instrument reverse steps b and a In step b be sure to install the ribbon cable with the brown wire leading to pin 1 of J10 2 Output Amplitude Allow a minimum 20 minute warm up for the TSG 601 and the oscilloscope a Configure the 11403A as follows WAVEFORM MENU Vertical Dese mn
74. ent settings in effect when the preset is saved including the current output format test signal and cycle setup Note that ID messages themselves are not stored Thus if a Preset remembers to display ID 4 for example the latest message in ID 4 will appear whenever that Preset is recalled Remember editing an ID message can have an affect on what you get when you recall a preset 1 3 4 Press the Recall key Note that the ID first shown on the display always indicates the current most recently recalled ID Scroll through the RECALL ID 1 through 8 and RCL PRESET 1 through 4 locations with the lt keys The first line of an ID message will occupy the bottom line of the display use the y key to see the second line For example the factory ID 1 is Tektronix TSG601 Serial Digital The display will first look like this Recall IDE 14 Tektronix TSG6b61 Pressing the w key will change it to this Recall 10 Lae Serial Digital You may find this feature useful if you save two or more IDs with the same first line of text When the desired storage number is displayed press ENTER to recall the ID or Preset Press any rectangular key to exit the Recall menu TSG 601 Service Manual SSS Theory of Operation Theory of Operation This section contains a description of the TSG 601 circuitry based on the block diagram shown in Figure 3 1 Block Diagram Des
75. ets in NVRAM also in A1U4 control the logic circuits in the FPGA and change the readout on the LCD display The microprocessor also controls other peripheral circuits through its I O ports The lower LSB of port OX and P34 of port 3X are used to communicate with the Character ID chip A1U23 P07 of port OX shuts the power supply off when either a low battery condition is detected or an Off condition is selected from the keypad P35 of port 3X is used to turn the backlight of the LCD on and off The microprocessor s digital to analog outputs ANOO and ANO1 are used to control the LCD display contrast level and the serial video output signal level respectively When the instrument is first turned on the FPGA A1U2 goes into its configu ration routine During this routine the FPGA output signals LDC INIT and DONE are held low while HDC is held high The FPGA is a RAM base IC and needs to read in the appropriate data in order to configure its internal logic The FPGA uses the address and data buses connecting to and from the flash PROM A1U4 to configure itself The FPGA starts at the MSB of and decrements until all the configuration data is read by the FPGA During the configuration routine the remaining I Os of the FPGA are in a tri state mode The HDC signal is passed through an invert er A1U22 and holds the microprocessor in the reset mode during this time This causes the outputs of the microprocessor to be placed in a
76. f and back on regardless of prior Channel Output settings 1 If necessary enter the Output menu press Shift then Output Ampl 2 Scroll down to the Video Data Word Length item with the down arrow key and press ENTER to reach the word length selection display 3 Use the lt or key to toggle between 8 and 10 bits press ENTER to confirm the selection 4 Press any rectangular key to exit the Output menu 1 Enter the CRC menu press Shift then CRC On Off The display will resemble the following illustration FFCRC ERR ENTR HORM 2 Use the lt p keys to select FFCRC Full Field CRC or APCRC Active Picture CRC Notice that the up down symbol on the second display line will move to indicate the chosen type of CRC 3 Use the keys to select the type of CRC to be encoded into the output The choices for the two types of CRCs are NORM or ERR Error APCRC NORM ZERO or ERR Error TSG 601 Service Manual Operating Information Inserting ID Messages Editing ID Messages Positioning ID Messages TSG 601 Service Manual See the User manual for an explanation of these options Once the desired CRC choices appear on the display press ENTER to accept invoke the selections Press any rectangular key to exit the CRC menu Toggle the inclusion of CRC data or errors on and off by pressing the CRC On Off key The CRC status
77. from your body by wearing a wrist strap while handling these components Servicing static sensitive assemblies or components should only be performed at a static free workstation by qualified personnel TSG 601 Service Manual Maintenance Troubleshooting Aids Foldout Pages Diagrams TSG 601 Service Manual m Nothing capable of generating or holding a static charge should be allowed on the workstation surface m Keep the component leads shorted together whenever possible Pick up components by the body never by the leads m Do not slide the components over any surface m Avoid handling components in areas that have a floor or work surface covering capable of generating a static charge m Use a soldering iron that is connected to earth ground m Use only special antistatic suction type or wick type desoldering tools The following is miscellaneous information about schematics circuit board il lustrations component numbering and assembly numbering NOTE No repair should be attempted during the warranty period The foldout pages at the back of the manual contain schematic diagrams and cir cuit board illustrations The circuit number and electrical value of each component is shown on the sche matic diagrams The first page in the Diagrams section explains the schematic symbols and notations found on the diagrams The Replaceable Electrical Parts list gives a complete description of each component Circuit b
78. hysical and environmental specifications The supporting figures waveform diagrams and related data follow the specifi cation tables Reference Documentation TSG 601 Service Manual The following documents were used as references in the preparation of this section Product Classification Environmental Test Summary 13 June 1977 Tektro nix Standard 062 2853 00 Electromagnetic Compatibility Environmental Test 31 March 1977 Tektro nix Standard 062 2866 00 Recommendations and reports of the CCIR 1978 Transmission of Sound Broadcasting and Television Signals Over Long Distances CMTT IEEE Standard Dictionary of Electrical Terms Second Edition 1977 IEEE Standard 100 1977 Safety Standard for Electrical and Electronic Test Measuring Controlling and Related Equipment February 1988 ANSI ISA S82 01 International Electrotechnical Commission Standard Safety Requirements for Electronic Measuring Apparatus IEC 348 Canadian Standards Association Electrical Standard for Electrical and Elec tronic Measuring and Testing Equipment CAN CSA 22 2 No 231 Standard for Electrical and Electronic Measuring and Testing Equipment Second Edition July 21 1980 Specifications Performance Conditions The Performance Requirements are valid if the instrument has been adjusted at approximately 25 C is being operated within environmental limits see Table 1 9 and has had a minimum warm up of 20 minutes Safety Stan
79. ines 21 and 262 Lines 22 through 261 Specifications Table 1 4 Serial Digital Video Output Characteristic Connectors Number of Outputs Digital Format BitRate Source Impedance Return Loss Termination Detector Signal Amplitude Absolute Accuracy 800 mV setting Relative Accuracy Coarse increments Fine increments DC Offset Rise and Fall Times J itter Error Detection Ancillary Data Table 1 5 Cable Simulator Characteristic Length Return Loss 1 10 Performance Requirements Supplemental Information 3 5 75 Q 1 component serial video CCIR 601 Component 525 625 8 or 10 bits data Scrambled NRZI complies with SMPTE 259M and CCIR 656 2 PTE 150 gt 15 dB from 5 MHz to 270 MHz instrument switched on Triggers display symbol when return loss of the signal path is lt 10 dB approximates ter mination impedance of lt 37 5 Q and 2150 Variable from 600 mV to 1000 mV in the follow ing steps Coarse 100 mV on even 100 mV increments Fine 20 mV increments 800 20 mV 100 8 mV 20 8 mV 0 0 5 Volts 400 1000 ps 20 to 80 amplitude points ess than 360 ps From last 100 mV setting Over a period of one line Active picture CRC 0 AP CRC Tektronix propri etary on lines 9 272 525 or 5 amp 318 625 EDH SMPTE RP 165 Performance Requirements Supplemental Information 5 4 dB 0 5 dB at 135 MHz Approximates 50 meter length of Belden 8281 coax ca
80. ity to repair or replace defective products is the sole and exclusive remedy provided to the customer for breach of this war ranty Tektronix and its vendors will not be liable for any indirect special incidental or consequential damages irrespective of whether Tektronix or the vendor has advance notice of the possibility of such damages TSG 601 Service Manual DECLARATION OF CONFORMITY Tektronix Inc Television Products Division P O Box 500 Beaverton Oregon U S A declare under our sole responsibility that the TSG 601 Serial Digital Generator to which this declaration relates is in conformity with the following standards EN50081 1 Generic Emission Standard 50082 1 Generic Immunity Standard EN60555 2 Power Line Harmonics Standard following the provisions of the Directive s of the Council of the European Union EMC Directive 89 366 EEC TSG 601 Service Manual TSG 601 Service Manual Se AAA Contents Listof Fig res 2 0 y ab viii List of Tables A Rn nee er ix General Safety Summary xi Service Safety Summary xiii Specificatiolis u en een debo S e 1 1 Introduction A A ER VES 1 1 Reference Documentation 1 1 Performance Conditions 1 2 Safety Standard Compliance
81. logic function performed and may differ from the manufacturer s data Overline parenthesis or leading slash indicate a low asserting state Example ID CONTROL ID CONTROL or ID CONTROL Abbreviations are based on ANSI 1 1 1972 Other ANSI standards that are used in the preparation of diagrams by Tektronix Inc are Y14 15 1966 Drafting Practices Y14 2 1973 Line Conventions and Lettering Y10 5 1968 Letter Symbols for Quantities Used in Electrical Science and Electrical Engineering American National Standard Institute 1430 Broadway New York New York 10018 Electrical components shown on the diagrams are in the following units unless noted otherwise Capacitors Values one or greater are in picofarads pF Values less than one in microfarads uE Resistors Ohms 62 Diagrams and Circuit Board Illustrations The following information and special symbols may appear in this manual Assembly Numbers Each assembly in the instrument is assigned an assembly number e g A20 The assembly number appears on the diagram in circuit board outline circuit board illustration title and lookup table for the schematic diagram Replaceable Electrical Parts List is arranged by assembly number in numeri cal sequence the components are listed by component number Example Component Number Chassis mounted components have no Assembly No prefix See end of Replaceable Electrical Parts Li
82. m the FPGA and outputs a serial data stream at 270 MHz A resonance tank of 540 MHz between pins 1 and 44 is used to convert the incoming 27 MHz clock to 270 MHz The voltage level at A1TP1 should be near 3 V when the AFC is locked up The serial data goes through the output driver A1U16 which has variable amplitude capability and complimentary outputs The output level is controlled by the microprocessor through the SIG_LEVEL signal line The positive output of 1011 goes through return loss compensation before go ing to the output connector The negative output goes through identical com pensation before it is internally terminated The two outputs are connected together at a summing point between 1 19 and A1R20 This summing point is used to determine proper termination of the output signal If the output is not properly terminated in 75 the summing point will activate the tank circuit made up of A1L3 A1C30 and circuit board capacitance The tank circuit drives TSG 601 Service Manual Theory of Operation the input to the signal strength meter A1U13 which serves as return loss de tector 1013 signals the microprocessor when the output return loss is out of specification as set up by A1R31 LCD Display The microprocessor addresses the LCD display Assembly A3 through the FPGA The display is enabled through the LCDE control line The LCD contrast 1s driven through 104 from the microprocessor The backlight is d
83. ment 4 Replacement is the reverse of removal Be sure that the brown wire of the battery cable assembly connects to pin 1 of J10 Connector Panel Follow this procedure to remove and replace the connector rear panel of the Removal Replacement 5 601 1 With the back cover removed disconnect the cable from J1 on the connector panel Again pull on the connector housing not on the wires 2 Slide the assembly up away from the front panel 3 Replacement is the reverse of removal TSG 601 Service Manual 5 7 Maintenance Main Board and LCD Removal Replacement 5 8 Keypad Removal Keypad Replacement Follow this procedure to remove and replace the Main board and LCD of the TSG 601 1 After removing the connector panel use a pair of needle nose pliers to gently pull the J2 housing up away from the instrument Pull straight up lifting the Main board at the same time Do NOT bend the connector housing When 2 pulls free lift the Main board and LCD display away from the case To separate the Main board and LCD display module disconnect the LCD display cable from J6 and gently pull the two assemblies apart at J1 The rubber board spacers should remain attached to the LCD display Replacement is the reverse of removal Follow this procedure to remove the TSG 601 keypad 1 Once the Main board 16 out of the way lift the plastic spacer board out of the instrument This is held in place onl
84. n that interval When the correct information is in all four time interval positions press ENTER to confirm the cycle setup Press any rectangular key to abort the cycle edit To set the duration of each cycle time interval press the A key to reach the ID Cycle time menu item Use the horizontal arrow keys to select the duration between one and nine seconds Press ENTER to confirm To replace the current ID with the ID cycle scroll through the ID menu to the ID Cycle OFF selection Press a horizontal arrow key to change the TSG 601 Service Manual Operating Information Cable Simulation Detecting Incorrect Termination Saving Storing Presets and 10 TSG 601 Service Manual 4 selection to ID Cycle ON then press ENTER cycle will appear in the picture if toggled on with the ID On Off key To simulate the addition of 50 meters of 75 coaxial cable anywhere your system connect the TSG 601 into the signal path with the two BNCs marked APPROX 50M CABLE The connectors are interchangeable and the circuit will simulate 50 m of Belden 8281 cable which attenuates the signal by approximately 5 4 dB at 135 MHz whether the TSG 601 is switched on or off A special symbol will flash in the upper right corner of the TSG 601 display to indicate improper termination of the serial video signal path The symbol is displayed whenever the instrument detects return loss below ap
85. nce Verification and Adjustment Procedures w Or Performance Verification and Adjustment Procedures This section consists of a detailed performance verification procedure to verify the operation of the TSG 601 and an adjustment procedure to return the instru ment to in spec operation A performance verification Checklist appears on page 4 2 Step by step performance verification procedures begin on page 4 2 Step by step instructions for adjustment procedures begin on page 4 6 Required Test Equipment The following list of equipment represents the minimum required for the Perfor mance Verification and Adjustment procedures While alternate equipment may be used it is not recommended Alternate equipment must meet the minimum specifications for the listed equipment Use of inadequate equipment may result in faulty measurements or calibration Table 4 1 Required Equipment Qty Requirements Example Oscilloscope 1 500 MHz bandwidth Tektronix 11403 Digitizing Oscilloscope with 11 72 Plug in 1 Spectrum Analyzer Freq Range 325 MHz Tektronix 2712 Option 04 Sensitivity up to 50 dB Internal tracking generator RF Bridge Atleast 46 dB return loss Wideband Engineering sensitivity 50 kHz to PartNo AS7TGACR and 325 MHz high frequency terminator A56T75B 50 Q BNC cable 2 Tektronix p n 012 0057 00 75 50 Q minimum loss at 1 Tektronix p n 011 0057 01 tenuator DC coupled required for oscilloscope
86. nd Vertical Counters and Decoders The H and V counter outputs along with the output of the signal selection register are used in addressing the signal PROM and SRAMs to obtain the appropriate signal information The counter outputs are decoded for timing information to enable the FPGA to process the signal before outputting it to the serializer 3 1 Theory of Operation 3 2 Table 3 1 Circuit Addresses Hex Address Circuit TFFFF 0 Flash PROM A1U4 OF FFF 8000 Video Flash PROM A1U6 0000 SRAM LSB A1U26 0000 SRAM MSB A1U21 E0000 LCD Instruction Code E0001 LCD Data Code FFFFF E0002 FPGA Registers A1U2 m Signal Processing Circuit The processing circuit receives the signal data SD 0 9 from the SRAMs then adds secondary information before scrambling the signal The second ary information consists of EAV end of active video and SAV start of ac tive video timing character ID if any and CRC data Memory The TSG 601 has two flash PROMs 128KX8 and two SRAMs 32 8 The first flash PROM A1U4 serves three functions it contains the microprocessor code in hex addresses O to FFFF NVRAM for the microproces sor hex addresses 10000 to 17FFF and the configuration data for the RAM base FPGA in addresses 18000 to IFFFF The other flash PROM A1U6 and the two SRAMs are used to generate signal information Output The FPGA outputs a 10 bit parallel signal stream with a
87. ns Table 1 3 Test Signal Characteristics Cont Characteristic Mod Pulse and Bar 525 lines 60 Hz 12 51 Pulse HAD Pulse Amplitude Y Channel B Y R Y 2T Pulse HAD 60 Line Sweep With Markers Amplitude Frequency Range Y Channel R Y B Y Marker Frequencies Y Channel R Y B Y 500 kHz Bowtie half amplitude Y Channel R Y B Y Amplitude Convergence Amplitude Pattern Pulse HAD Equalizer SDI Checkfield PLL SDI Checkfield Matrix SDI Checkfield Field Timing 625 50 Equalizer PLL Field Timing 525 60 Equalizer PLL Active Picture Markers Field Timing 625 50 Vertical Limits Horizontal Limits Field Timing 525 60 Vertical Limits Horizontal Limits TSG 601 Service Manual Supplemental Information See Figures 1 25 1 26 and 1 27 1562 5 ns in NTSC encodes to 12 5T modulated pulse 2 60 79 350 0 mV 196 3 mV 248 1 mV 200 ns Y channel only See Figures 1 28 and 1 29 420 mV 250 kHz 5 75 MHz 125 kHz 2 75 MHz 0 5 1 2 3 4 and 5 MHz 0 25 0 5 1 1 5 2 and 2 5 MHz See Figures 1 30 1 31 and 1 32 500 kHz sine wave 502 kHz sine wave 350 mV See Figures 1 33 and 1 34 525 mV 7596 Crosshatch 14 horiz 15 vert lines 225 25 ns PerSMPTE RP 178 PerSMPTE RP 178 PerSMPTE RP 178 Lines 24 through 166 Lines 167 through 310 Lines 21 through 141 Lines 142 through 262 See Figures 1 35 1 36 and 1 37 and Table 1 13 Lines 24 and 310 Lines 25 through 309 L
88. o NOT attempt to recharge standard alkaline batteries After a minute with no key press the display back light will be dimmed to conserve battery charge To guard against battery discharge if you forget to turn the TSG 601 off enable Auto Power Down through the Diagnostic menu see page 5 4 The TSG 601 can sense low battery voltage It will warn you when the charge is sufficient for approximately ten more minutes of operation The instrument will shut itself down when the battery voltage becomes too low for reliable operation See the Battery Hints in the Maintenance section of this manual page 5 1 The ON key toggles instrument power On and Off Keypad and Display Conventions 2 2 Please see the Instruction card p n 070 8909 00 supplied with the TSG 601 for a tour of the keypad and an explanation of the display symbols For your con venience the following panels are taken from the card TSG 601 Service Manual Operating Information Using your TSG 601 TSG 601 Service Manual Display Symbols Auto power down enabled symbol rotates use Diagnostic menu to disable hold Lock Qut down and press ON to enter the Diagnostic menu Improper signal path termination E Shift press Shift again to Shift Lock El Shift Lock press Shift again to unlock Lockout enabled press Lock Out to unlock Blank position will not obscure test signal Shift Shif
89. oards and assem blies are shown with a heavy border for identification If the border does not completely encircle the schematic then that schematic only portrays part of the circuitry on that board or assembly The name and assembly number of the cir cuit board are shown along the border as well as the serial number range that the schematic represents if applicable NOTE Check for Change Information at the rear of the manual for inserts describing corrections and modifications to the instrument and manual 5 3 Maintenance Circuit Board Illustrations Numbering Diagnostics 5 4 The Diagnostic Menu Electrical components connectors and test points are identified on circuit board illustrations located on the inside fold of the corresponding circuit diagram or the back of a preceding diagram The circuit board assemblies are assigned assembly numbers starting with 1 Circuit boards have been assigned an assembly number so that they may be or dered from Tektronix Inc They are as follows 1 Main Board Assembly A2 Keypad Board Assembly LCD Board Assembly The part numbers for ordering these boards are listed first in the Replaceable Electrical Parts list EPL in Section 6 The EPL is arranged in assembly by assembly order as designated in ANSI Standard Y32 16 1975 Each component is assigned a circuit number which is shown in the parts list by combining the assembly number and the circuit num be
90. on Because of space limitations an item name may sometimes appear as incomplete Use the U S Federal Catalog handbook H6 1 for further item name identification Following is an example of the indentation system used to indicate relationship 123 4 5 Name amp Description Assembly and or Component Mounting parts for Assembly and or Component MOUNTING PARTS END MOUNTING PARTS Detail Part of Assembly and or Component Mounting parts for Detail Part MOUNTING PARTS END MOUNTING PARTS Parts of Detail Part Mounting parts for Parts of Detail Part MOUNTING PARTS END MOUNTING PARTS Mounting Parts always appear in the same indentation as the Item it mounts while the detail parts are indented to the right Indented items are part of and included with the next higher indentation Mounting parts must be purchased separately unless otherwise specified Indicates the code number of the actual manufacturer of the part Code to name and address cross reference can be found immediately after this page Indicates actual manufacturer s part number TSG 601 Service Manual Replaceable Mechanical Parts CROSS INDEX MFR CODE NUMBER TO MANUFACTURER Mfr Code Manufacturer Address City State Zip Code TK0435 LEWIS SCREW CO TK1155 QUALITY PLASTIC MOLDING TK2548 XEROX BUSINESS SERVICES DIV OF XEROX CORPORATION ODWW6 MICRO POWER ELECTRONICS 0VG90 INC 62712 SEIKO INSTRUMENTS US
91. p Diag Diag Comp Diag Diag Comp Diag Diag No No Loc Loc No No Loc Loc No No Loc Loc No No Loc Loc 1 85 Al 3 Di J15 1 B2 04 R56f 3 Gi ORS C2 3 D C1 C64 t 3 H3 J22 1 Gi 02 C3 3 D C1 C65 t 3 H3 423 1 Ei D3 857 3 2 Di C4 1 H5 Al C66 1 A2 J24 1 Hi D2 R58 3 B2 C2 C5 1 65 Al C68 t 3 G3 C2 425 1 H4 D2 R59 3 B2 0 C6 1 G5 Bl C69 t 3 G3 C2 J26 1 H2 F2 R60 2 A2 C4 C7t 3 C1 71 3 H3 R61 03 3 F2 Fi R62 H3 03 2 2 C72f 3 H3 C2 3 Fl R63 03 121 2 Fi Catt 3 0 13 2 G2 B3 C14 2 E C82 3 G3 C2 17 3 BI R64 03 C15 2 Fi 1 A3 Ge R65 03 C16 2 A 1 A3 F2 P6 1 B5 R66 03 171 2 A2 C85t 1 A2 R67 03 Ci8t 2 A2 B4 C87t 1 A3 QM 1 A2 R68 H3 Q2 1 A5 G4 R69 H4 4 C19 2 B2 C4 C88 1 A5 Q4 1 A5 Bi R70 f H4 E4 C26 2 F2 C89 2 Di Q5 2 Di D C27 2 H2 2 C90f 3 D4 071 3 D2 Di R71 G5 28 2 G2 2 C91 t 3 R72 H2 Fi 2 e C29 2 F2 2 cat 3 G3 E4 ast 3 E2 El R73 Fl C30 2 G2 Cast 3 63 Q9f 3 Ci Ci R78 3 D2 DI C31 2 62 2 2 B1 010 3 2 El R79 2 62 2 ee 911 t 3 Gi Di 23 16 5 38 C33 2 E2 4 C100 3 F3 012 3 Tr 2 B2 C4 C34 2 B2 3 Fi DI TP3 3 F3 B3 C36 3 G2 02 1
92. pack with the correct voltage and polarity The external DC power connector is on the left side of the instrument see the illustration above Open the battery compartment by sliding the compartment door in the direction of the inscribed arrow until the door tabs line up with the slots in the case then remove the door When selecting a power source for your TSG 601 please remember m Attempting to use an improper AC adapter can damage the instrument USE AN APPROPRIATE DC POWER SOURCE ONLY Voltage must be be TSG 601 Service Manual 2 1 Operating Information tween 9 and 15 VDC the center contact of the connector must NEG ATIVE polarity and open circuit voltage must not exceed 18 VDC For best results use the adapter supplied with the instrument There 15 no need to remove the optional NiCad battery pack for recharging The TSG 601 will trickle charge the battery pack whenever the standard AC adapter is used It can take up to 16 hours to fully charge the battery pack Note that charging will occur only if the adapter supplies at least 12 V make sure that the adapter you use is appropriate for the local AC supply AA batteries are not included with the instrument buy them locally Rechargeable AA batteries may be used but they are NOT recharged automatically To recharge AA batteries remove them from the instrument and use an appropriate battery charger For safety read and follow the battery charger instructions D
93. proximately 10 dB which approximates termination impedance of less than 37 5 or greater than 150 Q Press Shift and then Recall Note that the ID first shown on the display always indicates the current most recently recalled ID Scroll through the STORE ID 1 through 8 and STO PRESET 1 through 4 locations with the left right arrow keys The first line of any ID message already stored in the location will be shown in the bottom line of the display use the y key to see the second message line Remember that storing the current settings or ID will overwrite the contents of the Preset or ID location When the desired storage number is displayed press ENTER to save the current ID or instrument settings If you have stored an ID it will replace the old contents on the bottom display line Press any rectangular key to exit the Store function Note that IDs are normally saved when they are edited through the ID menu see Editing ID messages page 2 7 You may use the Recall Store button however if you wish to copy the current ID to another memory location Re member that the current ID 15 the last message recalled through the ID menu or Recall the ID will be copied and the previous contents of the ID location over written even when no message appears the TSG 601 output ID Off 2 9 Operating Information Recalling Presets and IDs 2 10 A preset includes all of the instrum
94. r EXAMPLE R123 on assembly A2 would be listed in the EPL as A2R123 In the EPL assemblies are listed first followed by circuit board mounted parts in alphanumeric order Parts mounted on the chassis are listed at the end of the EPL NOTE The complete part number shown in the parts list should be used when ordering replacement parts To enter the diagnostic menu hold the Lock Out button down while pressing the ON button To exit the diagnostic menu and resume normal operation press any of the rectangular buttons at the top of the keypad The diagnostic menu items are listed below Use the up and down y arrow keys to scroll up and down the list TSG 601 Service Manual Maintenance 1 AUTO POWR DOWN disable lt p 1 Auto power down use the left 4 or right p arrow key to toggle between enabled and disabled The Auto Power Down function shuts the TSG 601 off when there has been no key press for approximately 10 minutes to conserve battery charge The Auto Power Down symbol a rotating line appears in the upper right corner of the display when the function is enabled 2 Battery Type disposable lt p 2 Battery type use the 4 or p key to toggle between disposable or recharge able 5 Factory Reset Press ENTER 3 Factory Reset press Enter to reset the instrument to the factory default settings WARNING All user selections ID messages and Presets will be lost 4 LCD Diag ALL OnqpALl Off
95. r 3 4 The keypad board Assembly A2 is configured in a row and column format with the signal lines sent to the main board Assembly Al through A1J2 The row signal lines are inputs to the microprocessor A1U5 ports 2X 7X and pulled up to 5 V by AIRS When a key is pressed the 100 resistance of the key connects the row to the column of the pressed key The microprocessor 105 drives the column lines low 0 V one by one read ing the row lines to decode a key press The column lines are normally driven high by the microprocessor port 1X When a column line is driven low the oth er column lines are momentarily configured as inputs leaving them floating This is done to avoid having two outputs driving each other with different lev els when two keys have been pressed Only single key presses are decoded with multiple key presses being ignored The microprocessor polls the keypad board every 22 ms checking for key presses When the ON is pressed the regulated voltage V KEYBD is connected to the ON KEY control line If the instrument 1 off the ON KEY line will turn the instrument on When the instrument is on the activation of the KEY line will be detected by port 23 SAFE of the microprocessor The microprocessor will finish housekeeping details before shutting the instrument off using the PWR_DWN signal of port 07 A portion of port on 105 is used to run the RS 232 interface
96. riven through A1Q2 Power Supply The TSG 601 is DC powered either by batteries or by an AC adapter with a nega tive center lead orientation When the adapter DC output is connected to A1J5 power is not drawn from the batteries AIL7 and A1C7 act as an EMI regulator A1Q9 and AlVRI protect the circuitry DC power adapter with pos itive center lead The 5 V regulator A1U25 has very low quiescent power draw for battery life extension It supplies the keyboard with power When the ON key is pressed the power is routed back to the power supply using the flip flop A1U1 to activate the switching supply Once AlUI pin 6 has gone low the switching regulator A1U3 is turned Current output is enhanced by the driver made up of A1Q7 1010 and 108 The switching transformer A1L1A outputs 5 V A1L1B is used to clean up the supply voltage for the analog circuitry The NiCad battery pack is charged through the circuit made up of A1Q12 and A1CR2 when the supply voltage is at least 10 5 V At supply voltages less than that the batteries will not charge The microprocessor shuts down the power supply using A1Q11 when a low bat tery state is detected 50 m Cable Simulator The 50 m cable simulator has been characterized to closely emulate 50 m of Bel den 8281 coaxial cable The simulator input and output are interchangeable TSG 601 Service Manual 3 7 Theory of Operation 3 8 TSG 601 Service Manual Performa
97. s precedes 2 with its subassemblies and parts Mechanical subparts to the circuit boards are listed in the electrical parts list These mechanical subparts are listed with their associated electrical part for example fuse holder follows fuse Chassis mounted parts and cable assemblies have no assembly number prefix and are located at the end of the electrical parts list Indicates part number to be used when ordering replacement part from Tektronix Column three 3 indicates the serial or assembly number at which the part was first used Column four 4 indicates the serial or assembly number at which the part was removed No serial or assembly number entered indicates part is good for all serial numbers An item name is separated from the description by a colon Because of space limitations an item name may sometimes appear as incomplete Use the U S Federal Catalog handbook H6 1 for further item name identification The mechanical subparts are shown as ATTACHED PARTS END AT TACHED PARTS or MOUNTING PARTS END MOUNTING PARTS in column five 5 Indicates the code number of the actual manufacturer of the part Code to name and address cross reference can be found immediately after this page Indicates actual manufacturer s part number TSG 601 Service Manual Replaceable Electrical Parts CROSS INDEX MFR CODE NUMBER TO MANUFACTURER Mfr Code Manufacturer Address City State Zip Cod
98. s the up arrow The display should now read ADJ Signal Ampl 1000 mv i Use the left and right arrows to adjust the amplitude on the 11403A to 1 V 5 mV j Press ENTER to store the new values NVRAM 4 8 TSG 601 Service Manual Maintenance Maintenance Battery Hints The BATTERY LOW Message Low Battery Shut Down TSG 601 Service Manual For optimal battery life and capacity use the rechargeable NiCad battery pack Tektronix p n 119 4488 00 in full charge discharge cycles In other words fully discharge the battery pack before recharging and then charge the battery pack until fully charged approximately 16 hours A new battery pack will take a few charge discharge cycles to reach full capacity WARNING Install or replace batteries only with the instrument switched OFF and the AC adapter disconnected Replace the batteries only with standard AA batteries 1 2 1 5 nominal or with a Tektronix rechargeable battery pack p n 119 4488 00 Setting the Auto Power Down page 5 5 and Battery Type page 5 5 func tions in the diagnostic menu also have an impact on battery life The battery types are disposable Alkaline or rechargeable NiCad Setting the battery type changes the voltage thresholds for both the BATTERY LOW display message and low battery shut down The warning BATTERY LOW will appear on the second line of the TSG 601 display when the battery voltage drops below a predetermine
99. se the Proper AC Adapter Use an Appropriate Power Source Observe These Battery xii Precautions Use only the specified AC adapter provided with this product to connect it to the mains local AC supply Do not operate this product from any power source that applies more than the specified voltage For information on replacing and recharging batteries specific to this product refer to the detailed instructions provided in this manual Replace Batteries Properly Before replacing batteries turn the instrument off and disconnect the AC adapter Use only the size and type of batteries specified for this product Be sure to install the batteries in the proper polarity Use care not to short battery terminals together when replacing batteries When replacing alkaline batteries all batteries should be replaced at the same time Recharge Batteries Properly Do not attempt to recharge alkaline batteries Recharge NiCad batteries only in accordance with the instructions provided in this manual Do not continue recharging for longer periods than recommended in the instructions Replace the NiCad battery pack if the batteries do not recharge within the recom mended time or if the operating time from a full charge seems significantly shortened NOTE Always discard batteries in accordance with all local regulations TSG 601 Service Manual Service Safety Summary Battery Recycling Observe All Ratings Use in a
100. st A23 A2 R1234 Assembly Subassembly Number Number if used Schematic Circuit Number Grid Coordinates The schematic diagram and circuit board component location illustration have grids A lookup table with the grid coordinates is provided for ease of locating the component Only the components illustrated on the facing diagram are listed in the lookup table When more than one schematic diagram is used to illustrate the circuitry on a circuit board the circuit board illustration will only appear opposite the first dia gram the lookup table will list the diagram number of other diagrams that the other circuitry appears on 1 1 E I DECOUPLED OR FILTERED VOLTAGE CHANGED REAR PANEL PART IC M 12 3 PLUG WIRE STRAP MODULE PORTS NEGATIVE INPUT R5 R500 XX 4 Y n 10 20K wa R100 1 A 2 m NC 0 OHM VIDE gt T Y al fk 12V BNC FEMALE FRONT PANEL NOMENCLATURE BASE DRIVE 8 SNUBBER FUNCTION BLOCK TITLE 5 CIRCUIT BOARD OUTLINE N rotate SCREWDRIVER _ gy ADJUSTMENT REFER TO WAVEFORM 2 CLOCKWISE rau SINK 11 8V 15V PART NAME y AJUSTMENT H SCHEMATIC 4 R55 SEE PARTS LIST BOARD REF 1000 7 FOR SELECTION Qs CRITERIA W751 R85 SEL J3 ANALOG BOARD SQUARE PIN CONNECTOR SEE PARTS LIST FOR EARLIER VALUES AND SER
101. t Lock Only the next key press 13 shifted shifted functions are shown in yellow Shift Lock All following keys are shifted O O until Shift is pressed again Keypad Lock Out Toggles keypad Lock Unlock when locked only Lock Out and On keys are active and display backlight is dimmed Here s a list of what you can do with your TSG 601 Simple instructions for each operation begin on the indicated page For more information on any subject see the User manual m Output serial video test signals page 2 4 Specify the peak to peak amplitude of the serial output from 600 to 1000 mV page 2 5 Choose the video components Y Cr Cp to be included in the serial output page 2 5 Specify 8 or 10 bit video sample words page 2 6 Embed CRC information used for Error Detection and Handling or EDH in the output to detect or simulate errors originating in the serial data path page 2 6 m Add an ID message to the video signal and place it where you want in the picture page 2 7 Store up to eight ID messages for later use pages 2 7 2 9 2 3 Operating Information Outputting Serial Video 2 4 Test Signals Create a sequence of up to four stored ID messages that will cycle continuously in the output page 2 8 Simulate the effect on your system of 50 164 ft of coaxial cable page 2 9 Detect improper termination of the serial video signal p
102. trieval Understanding the structure and features of the list will help you find all of the information you need for ordering replaceable parts Cross Index Mfr Code Mfg Code Number to Manufacturer Cross Index for the mechanical parts Number to Manufacturer list is located immediately after this page The cross index provides codes names and addresses of manufacturers of components listed in the mechanical parts list Abbreviations Abbreviations conform to American National Standards Institute ANSI standard Y1 1 Chassis Parts Chassis mounted parts and cable assemblies are located at the end of the Replaceable Electrical Parts list TSG 601 Service Manual 8 1 Replaceable Mechanical Parts Column Descriptions Figure amp Index No Column 1 Tektronix Part No Column 2 Serial No Column 3 and 4 Qty Column 5 Name and Description Column 6 Mfr Code Column 7 Mfr Part Number Column 8 8 2 Items in this section are referenced by figure and index numbers to the illustra tions Indicates part number to be used when ordering replacement part from Tektronix Column three 3 indicates the serial number at which the part was first used Column four 4 indicates the serial number at which the part was removed No serial number entered indicates part is good for all serial numbers This indicates the quantity of mechanical parts used An item name is separated from the description by a col
103. will be reported on the second line of the display alternating with the ID status Toggle the ID message or cycle on and off with the ID On Off key Enter the ID menu press Shift then ID On Off Press the y key once to reach the Edit ID x menu item Note that the IDs first shown on the display always indicates the current most recently recalled ID Use the horizontal arrow keys to display the number of the ID you want to edit then press ENTER Use the arrow keys to move the character cursor Specify the character with the letter keys press Shift to select symbols and numbers The Sp key will enter a space blacking out the underlying test pattern The test pattern will show through a Blank Shift SP When you have made all the desired changes press ENTER to save them Note pressing any rectangular key will the edit and exit the menu If the ID message you started with in step 3 was on screen when you began the edit the new message will take its place If not and you wish to insert the new message press the A key to reach the Recall ID menu item select the ID number with the horizontal arrow keys and press ENTER As usual press any rectangular key to exit the ID menu NOTE Only the position of the currently displayed ID may be changed If you wish to change the picture location of a message that is not displayed you must first recall it through the ID menu or the
104. y by a friction fit Lift the Keypad board out of the TSG 601 This too is held in place by a friction fit Peel the rubber keypad out of the front panel Once the keypad has been removed from the front panel follow this procedure to replace the TSG 601 keypad 1 Place the Keypad board with the pins of the connector towards the work bench Place the rubber keypad on top of the Keypad board positioning it so that the ON button is in the corner closest the connector Adjust the rubber keypad so that the fingers on its back side fit through the corresponding holes in the Keypad board Holding the keypad and Keypad board with the buttons up slide the front case onto them aligning the rubber buttons with the holes for them in the front case as you do so The Keypad board is a friction fit in the front case half so you must apply some slight pressure to fully seat the assemblies into the case Place the assembled front case and keypad face down on the workbench and press the plastic spacer board into place Align the cutout in the spacer board with the connector The plastic fingers will be facing up Replace all assemblies by reversing the above procedures as necessary TSG 601 Service Manual Replaceable Electrical Parts A 85 Replaceable Electrical Parts This section contains a list of the components that are replaceable for the TSG 601 Use

Service Manual TSG 601 Serial Digital Generator - NSCA TRA-CAL

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