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8mm Video MECHANICAL ADJUSTMENT MANUAL IX

1. LED 0001 LED Removal 2 Attachment procedure Remove the LS chassis block assembly Refer to 4 10 1 Remove the LS grease cover Remove the two solderings and remove Q001 tape top 2 Remove the two solderings and remove 0002 tape end 3 Remove the two solderings and remove 2001 tape LED 4 Remove four solderings respectively from H001 T reel 5 and H002 S reel and remove the H001 and H002 6 Solder H001 T reel and H002 S reel respectively at the four locations Solder 0002 tape end at the two locations Solder 0001 tape top at the two locations Solder DOO1 tape LED at the two locations Attach the LS grease cover Attach the LS chassis block assembly to the mechanical chassis Refer to 4 10 Note careful of the plarities of the Hall element H001 H002 Photo transistor 0001 0002 and LED 0001 A polarity exists The protrusion faces inside unit Q001 Photo transistor tape top Remove the two T reel sensor H001 Tape LED D001 Drum side S reel sensor H002 Ho gt gt element reel Drum side D001 Diode LED gt H002 Hall element S reel A polarity exists The protrusion faces inside unit solderings LS chassis FP 300 flexible board Ly SN v 0002 Photo transistor LS 057 board tape end FP 301 flexible board F
2. 2 Slowly tighten the capstan azimuth adjustment screw until it slightly contacts the thickness gauge and remove the thickness gauge Capstan motor FP 300 flexible board 1 Capstan azimuth adjustment screw SANG camera pan 2 M1 4 x 4 5 2 Thickness gauge t 0 75mm Mechanism Protrusion of the mechanism chassis chassis Fig 5 3 5 4 Path Adjustment Purpose Adjust the linearity of the head If the adjustment is not correct Entrance side Exit side Noise appears on the top and bottom of the screen when playing back the tape that is recorded by other recorders Normal 5 4 1 Adjustment Preparation 1 Clean the tape running surface tape guides drum capstan shaft pinch roller 2 Connect the adjustment remote commander to the remote terminal Entrance side is defective 3 Setthe adjustment remote commander to the PATH mode track shift mode and release the auto tracking 4 Connect an oscilloscope as follows CHI Test connector PB RF terminal External trigger Test connector RF SWP terminal 5 Playback the tracking alignment tape WR5 INP NTSC WR5 Exit side is defective 1 PAL Ref No J 6 6 Confirm that the RF waveform on scope is flat both at entrance side and exit side If the RF waveform is not flat perform the adjustment by Fig 5 4 referring to section 4 2 7 After the adjustment is completed release the PA
3. 4 5 6 7 8 Remove capstan flexible board and flexible wiring board FP 300 CD from the holders 00 Y and in the directions of the arrows B and Remove the screw M1 4 x 2 5 Remove the claw of the guide rail T2 3 from the hole on the drum base assembly in the direction of the arrow 6 Remove the six solderings 4 Remove the FP 228 flexible wiring board 2P DEW sensor Remove the two screws camera pan2 main M1 4 x 1 6 and the screw SANG camera main M1 4 4 5 Remove the capstan motor Remove the capstan spring be careful not to drop the capstan spring and timing belt 49 2 1 2 3 4 5 6 7 Attachment Hook the timing belt on the gear of the capstan motor 8 attach the capstan motor while aligning it with the reference boss of the mechanism chassis assembly Attach the screw SANG camera pan2 1 4 x 4 5 and capstan spring 9 temporally attachment Attach the two screws camera pan2 M1 4 x 1 6 6 Tightening torque 0 078 0 01 Nem 0 8 0 1 kgfecm Attach the six solderings 4 to the FP 228 flexible wiring board 5 2P DEW sensor and the FP 299 flexible wiring board 4P Insert the guide rail T2 3 into the hole on the drum base assembly and tighten the screw M1 4 x 2 5 Tightening torque 0 078 0 01 Nem 0 8 0 1 kgfecm Attach the capstan flexible board and the flexible wiring board F
4. ASSY REEL TABLE S ASSY REEL PLATE SPR RE RETURN GUIDE S CASSETTE SPRING RVS ARM COVER LS GREASE SCREW M1 4X2 CAMERA TAPPING DIODE GL453 TAPE LED ELEMENT HALL HW 105C T REEL ELEMENT HALL HW 105C S REEL PHOTO TRANSISTOR PT4850F TAPE TOP PHOTO TRANSISTOR PT4850F TAPE END SWITCH PUSH 3 KEY REC PROOF Remarks Ref No Part No Description 771 3 065 830 01 772 3951 288 1 773 3 065 819 01 SPRING TG1 ARM 774 3 065 821 01 RAIL T GUIDE 775 3951 289 1 776 3 065 833 01 GUIDE LOCK 777 3 065 831 01 778 X 3951 304 1 ARM ASSY TG1 779 3 065 835 01 780 3 065 820 01 781 3951 296 1 BAND ASSY 782 3 065 836 01 783 3 067 167 01 0001 8 719 988 42 H001 8 19 033 37 H002 8 719 033 37 Q001 8 729 907 25 Q002 8 729 907 25 5001 1 692 614 11 6 3 Mechanical Chassis Block Assembly 1 802 M903 Mechanical chassis block assembly 2 See page 43 Ref No Part No Description Remarks Ref No Part No Description Remarks 801 7096 422 ASSY DRUM 814 3 065 881 01 SPRING P PRESSURE PLATE 802 3 947 503 01 SCREW M1 4 815 3 065 934 01 HLW CUT 0 98X3X0 25 803 3 065 928 01 SPACER GROUND 816 1 786 096 11 SWITCH ROTARY 804 3 065 927 01 GROUND DRUM 817 3 065 898 01 SPRING EJECT ARM 805 3 065 932 01 PAN 2 MAIN 1 4 1 6 CAMERA 818 3 065 870 01 ROLLER LS GUIDE 806 3 067 154
5. No 7 guide No 6 guide TG7 slack 5 4 5 3 Run Check Refer to Fig 5 13 1 Playback the thin video tape such P6 120MP NTSC P6 90MP PAL Confirm that tape does not float and the major tape curl of more than 0 3 mm does not occur at the top flange of the No 3 guide TG3 at the top flange of the No 6 guide TG6 and at both the top and bottom flanges of the No 7 guide TG7 2 Confirm that tape does not float and the major tape curl of more than 0 3 mm does not occur at the flanges of the respective guide when the FF button is pressed during PLAY mode to enter the CUE mode and when the REW button is pressed during PLAY mode to enter the REV mode No 1 guide TG1 No 6 guide No 3 guide TG6 TG3 No 7 guide 167 Pinch roller Drum 673 Capstan Fig 5 13 6 Exploded Views 6 1 Cassette Compartment Assy Drum Assy Z SUL LS chassis block b qq 708 M901 Note assembly See page 41 e 1 1 709 Note and code number of the M901 drum depending on models Refer to Service Manual of the respective models Mechanical chassis block Description Remarks CUT 0 98X3X0 13 LUMILER W HLC CUT 1 8X4X0 5 SCREW ASSY DRUM FITTING assembly See page 42 to 43 710 8 Ref No Part No Description Remarks Ref
6. 01 SPRING CAPSTAN 819 A 7096 421 A ARM ASSY HCL 807 3 065 931 01 RAIL 2 GUIDE 820 3 065 918 01 GEAR 2 CAM RELAY 808 X 3947 398 1 SCREW ASSY M1 7 PW 821 A 7096 419 A GEAR ASSY CHANGE 809 3 065 933 01 PAN 2 MAIN 1 4X4 5 CAMERA 822 3 065 902 01 BELT TIMING 810 1 677 049 11 FP 228 FLEXIBLE BOARD DEW SENSOR 823 3 065 905 01 GEAR RELAY 811 1 680 434 11 FP 299 FLEXIBLE BOARD 824 3 065 882 01 ARM EJECT 812 3 065 877 01 PLATE T GUIDE LOCK M902 8 835 701 01 MOTOR DC SCE13A C NP CAPSTAN 813 X 3951 301 1 PLATE ASSY PINCH PRESSURE M903 7096 420 MOTOR ASSY LD LOADING Ed 6 4 Mechanical Chassis Block Assembly 2 Ref No Part No Description 851 3 065 920 01 ARM HC DRIVE 852 3 065 913 01 GEAR 4 LD 853 3 065 914 01 SHEET COVER 854 3 065 917 01 GEAR 1 CAM RELAY 855 3 065 934 01 HLW CUT 0 98X3X0 25 856 3 065 915 01 GEAR 1 CAM 857 3 065 878 01 PLATE S GUIDE LOCK 858 3 065 932 01 PAN 2 MAIN M1 4X1 6 CAMERA 859 A 7096 413 A GEAR S ASSY GUIDE Remarks STOP RING 1 2 E TYPE GEAR T ASSY GUIDE PLATE ASSY M SLIDE ROLLER LS ARM ARM T1 LIMITTER Remarks Ref No Part No Description 860 7 624 101 04 861 A 7096 412 A 862 X 3951 307 1 863 3951 305 1 ASSY LS 864 3 065 901 01 865 3 065 916 01 GEAR 2 CAM 866 3 065 919 01 867 X 3951 308 1 ARM ASSY GL 868 X 3951 300 1 45 CHASSIS ASSY MECHANICAL 7 Printed
7. When cleaning the capstan shaft be carefull not to move the oil seal If the oil seal is moved oil will leak TG5 TG4 TG6 Pinch roller TG7 Capstan shaft ZX TG3 O lt Loading motor Capstan shaft cleaning Oil seal 4 LI m Fig 2 1 2 3 Periodic Inspection List Operating hours H Maintenance and inspection item 2000 2500 3000 3500 Remarks Tape running surface cleaning O O Be careful not to attach oil Rotary drum cleaning and degaussing O Be careful not to attach oil Timing belt Capstan shaft ot gt 5 65 Never attach oil to tape running path during pertodic inspection Loading motor x e Abnormal sound x Back tension measurement check x Brake system Performance x FWD RVS torque measurement Note When the machine is overhauled replace the parts referring to the above list 2 4 Appling Oil and Grease When replacing or assembling the parts use oil and grease while referring to the following On Oil Be sure to use the specified grease only If oil of different viscosity is used it can cause various troubles Oil Part No 7 661 018 18 Mitsubishi diamond oil hydro fluid NT 68 The oil used for bearings m
8. Wiring Boards and Schematic Diagrams I FP 302 1 LS 057 BOARD FP 300 FLEXIBLE x 0002 1 I ETOP FP 301 r FLEXIBLE 2 0001 1 3 I TAPE LED Q 4 6 TO 7 MECHA H002 8 CONTROL I S REEL BLOCK SENSOR I PROOF 1 ENSOR q C LOCK SW e 5002 C C LOCK I TR 1 I 4 o o ji c S901 i I SWITCH FP 299 FLEXIBLE Lu 1 FG1 002 MR 2 vec 1 DEW SENSOR I FG2 Vol 44 GND COM L COIL U 101 VEO CAPSTAN CONTROL FLEXIBLE i MOTOR BLOCK 15 3 2 1 1 e 3 2 l Eh LB 4 I 299 FLEXIBLE 1 677 049 FP 228 FLEXIBLE SWITCH 45 FP 300 FLEXIBLE COMPONENT SIDE x Q001 TAPE TOP SENSOR 1 680 436 LS 057 CONDUCTOR SIDE S002 LOCK
9. confirm that tape slack does not occur between the capstan and No 7 guide TG7 8 If the tape slack occurs exceeding the specifications specifications 0 5 mm or less rotate the TG7 nut to make the tape slack below the specifications 0 5 mm When the tape slack between the No 6 guide TG6 and capstan 2 is 0 3 mm or less in the REV mode it means that the adjustment is completed Guide zenith adjustment screw Fig 5 6 Capstan No 6 guide TG7 nut 3 7 guide x B Tape slack Rog 5 4 4 CUE and REV Waveform Check 1 2 Refer to Fig 5 8 Playback tracking alignment tape WR5 1NP NTSC WR5 1CP PAL Ref No J 6 and enter the REV mode Confirm on an oscilloscope that the pitches between the peaks of the RF waveform are equally spaced for 5 seconds or more If pitches between peaks of the RF waveform are not equal perform sections 5 4 2 Tracking Adjustment and 5 4 3 No 7 Guide TG7 Adjustment Enter the UCE mode Confirm on an oscilloscope that the pitches between the peaks of the RF waveform are equally spaced for 5 seconds or more If pitches between peaks of the RF waveform are not equal perform section 5 4 2 Tracking Adjustment 5 4 5 Check upon Completion of Adjustment 5 4 5 1 Tracking Check 1 2 3 Playback the tracking alignment tape in the PATH mode Compare the amplitude of the RF waveform in
10. less BT band Rising metal sheet Drum TG1 Loading motor 1205 0 4 mm range of fluctuation Left G 2 Right 0 5 mm or less Fig 5 1 5 2 Check and Adjustment of FWD RVS Back tension 1 Check Procedure 2 Adjustment Procedure 1 Install the mechanism deck in the main unit and set the take up 1 Ifthe value of the FWD torque is larger than the specifications torque cassette Ref No J 7 change the position where the TG1 arm spring is hooked in the 2 Check the FWD RVS take up torque direction of the arrow If the value of the FWD torque is Check the FWD torque in the PLAY state smaller than the specifications change the position in the Specified value 7 to 12 gfscm direction of the arrow Check the RVS torque in the RVS state Specified value 19 5 to 29 5 Reel table T assembly TG1 arm 5227 BT band assembly e d RVS arm spring TG1 arm spring a J Fig 5 2 04 5 3 Capstan Motor Azimuth Position Adjustment 1 Check Procedure 1 Insert the thickness gauge Ref No J 16 of 0 75 mm between 1 Loosen the capstan azimuth adjustment screw SANG camera pan 2 M1 4 x 4 5 and insert the thickness gauge 0 75 mm Ref No J 16 between the protrusion of the mechanism the protrusion of the mechanism chassis and the capstan motor and check the azimuth position 2 Adjustment Procedure chassis and the capstan motor
11. plate 4 with the HLW cut 0 98 x 3 x 0 25 3 Attach the P pressure plate spring Insert the concave side of the LS guide roller into the shaft to attach the LS guide roller Note Insert the roller completely Attach the LS chassis block assembly to the mechanical chassis Refer to 4 10 Notch lt HLW cut 0 98 x 3x 0 25 Remove the pinch pressure plate assembly in the direction of the arrow AES Coat inside with grease too as P pressure plate spring Notch HLW cut Do not reuse we 0 98 x 3 x 0 25 Remove the guide lock plate T in the direction I of the arrow 8 Coat inside with grease too mO Eject arm e Q J 5 Relay gear Eject arm spring Concave side e LS guide roller When attaching it coat the hatched portion with grease Fig 4 15 zd 4 16 Rotary Switch Cam Relay Gear Change Gear Assembly Timing Belt Before replacing the timing belt remove the guide rail T2 and capstan motor Refer to 4 4 1 1 2 3 4 5 6 7 Removal Remove LS chassis block assembly Refer to 4 10 Remove the guide lock plate T pinch pressure assembly and eject arm Refer to 4 15 Remove the cam relay gear 1 Remove the timing belt Remove the HLW cut 0 98 x 3 x 0 25 3 and change gear assembly 2 Remove the four solderings 5 a
12. the other end of the spring on the position setting protrusion of the LS 057 board Attach the pinch roller arm assembly 3 to the shaft of the LS chassis block assembly and hook the pinch arm load spring 5 on the rising metal sheet of the pinch roller assembly 3 Hook the TG7 arm spring 0 on the shaft of the LS chassis block assembly while the hook side of the spring is facing downward When attaching the TG7 arm block assembly to the shaft of the LS chassis block assembly hook the hook side of the TG7 arm spring the rising metal sheet of the LS chassis block assembly and hook the top side of the spring to the notch of the TG7 arm block assembly Attach the 7 retainer with the screw camera pan2 M1 4 x 1 6 QD Remove the LS chassis block assembly Refer to 4 10 Tightening torque 0 078 0 01 0 8 0 1 kgfecm Clean the tape running path Refer to 2 2 TG7 arm block assembly N TG7 arm spring PRECAUTION DURING INSTALLATION Rising metal sheet fix the pinch arm load spring to the rising metal sheet of the LS chassis After attaching the pinch arm assembly release the temporarily fixed pinch arm load spring V Pinch arm road spring P lim arm roller TG7 arm spring Screw camera 2 M1 4 x 1 6 Remove the TG7 retainer in the direction of the arrow 3 Pinch arm assem
13. 8 0 1 kgfecm 4 Check the position of the HCL assembly 2 and HC drive arm Then attach the HCL arm assembly Q to the loading motor assembly 2 5 Hook the HC arm spring on the notch of the loading motor assembly 2 6 Clean the drum assembly Refer to section 2 1 Hook the HC arm spring on the notch of the loading motor assembly Pull and hook the HC arm spring in the direction of the arrow 6 M P When attaching it coat the hatched portion with grease Loading motor assembly rear view Drive pin LT HC drive arm J 2 HCL arm assembly x gt Drive pin Remove the loading motor assembly in the direction Screw of the arrow M1 4 x 2 5 A polarity exists The marked side has a red line 4 Loading motor assembly sheet Loading motor assembly 15 4 3 Drum Base Assembly Drum Earth 1 Removal procedure 2 Attachment procedure 1 Remove the capstan flexible board and flexible wiring board 1 Attach the ground spacer and drum ground 7 with the screw FP 300 from the holders 00 Y and in the direction of the screw assy PW 1 7 x 2 6 6 arrow Tightening torque 0 078 0 01 Nem 0 8 0 1 kgfecm 2 Remove the drum assembly Refer to section 4 1 2 Align the
14. 8mm Video MECHANICAL ADJUSTMENT MANUAL IX ver no 2000 12 M2000 MECHANISM Please use this manual with the service manual of the respective models Digital MECHANISM DECK SONY 2 1 2 2 2 3 2 4 4 15 4 16 4 17 4 18 4 19 5 1 5 2 5 3 5 4 TABLE OF CONTENTS Preparations for Check Adjustment and Replacement of Mechanism Block Service Jigs and Tools HH I eem 3 Mode Selector II Operating Procedure 5 Periodic Inspection and Maintenance Rotary Drum Cleaning RH I e e Tape Path System Cleaning Periodic Inspection Appling and Grease RH Before Replacement Check or Adjustment Phase Adjustment mmm eene 11 Cassette compartment assembly 12 Check Adjustment and Replacement Drum Assembly 14 HCL Arm Assembly Loading Motor Assembly 15 Drum Base Assembly Drum Earth HH 16 Guide Rail T2 Capstan eere rennen rennen 17 Blind Plate Lock Guide MM 18 Reel Table T Assembly T Soft Assembly we 19 S Ratchet RE Plate Cassette Guide 5 20 R Drive Gear Assembly LS Cam Plate 21 LS Cam Plate Position Adjustment 22 LS Chassis Block Assembly Y aaa Nk qk 23 TG7 Arm Block Assembly Pinch Arm Assembly 24 Guide Base T Block Assembly Guide Base S Block Assembly HM 25 Arm Reel Table S Assembly Push
15. ITION D Hole of mechanism chassis Rotary switch Cam relay gear 2 Cam relay Belt must be completely free from twist or stain when it is installed Change gear assembly 5 Remove the four solderings FP 299 flexible board gear 1 When attaching it coat the hatched portion with grease 4 17 Guide Gear Assembly Guide Gear T Assembly Relay Gear 1 Guide Lock Plate S 1 Removal procedure 2 Attachment procedure 1 Remove LS chassis block assembly Refer to 4 10 1 Attach the cam relay gear 1 with cut 0 98 x 3 x 2 Remove the screw camera pan2 main M1 4 x 1 6 0 25 3 Remove the guide lock plate S in the direction of the arrow Note The in phase markings of the cam relay gear 1 cam gear i 2 and cam relay gear must be aligned 4 Remove two stop rings E type 1 2 2 Attach the guide gear T assembly 6 and guide gear S 5 Remove the guide gear S assembly 4 and guide gear T assembly 2 to the shaft in this order and adjust the positions assembly Then attach them with the two stop rings E type 1 2 3 6 Remove the HLW cut 0 98 x 3 x 0 25 Note1 The in phase markings of the GL arm assembly guide gear 7 Remove the cam relay gear 1 S and guide gear T must be aligned Note2 The guide gear assembly S T has a different shape respectively P
16. LS arm assembly Attach the R drive gear assembly Refer to 4 8 Attach the blind plate Refer to 4 5 Clean the tape running path Refer to 2 2 Note Each arm must move smoothly When attaching it coat portion with TG7 arm block assembly LS guide 2 shaft Do not bend here Slot of LS chassis at two locations 0 Three screws M1 4 x 2 5 HCL cut 1 8 x 4x 0 5 L LS cam plate gt Cam groove Remove the LS chassis block assembly in the Y of the arrow When attaching it coat the hatched portion with grease LS arm assembly Mechanical chassis block assembly p ll 4 11 TG7 Arm Block Assembly Pinch Arm Assembly 1 Removal procedure 1 2 3 4 5 Remove LS chassis block assembly Refer to 4 10 Remove the screw camera pan2 M1 4 x 1 6 Remove the TG7 retainer 2 the direction of the arrow Remove the TG7 arm block assembly 6 and TG7 arm spring Remove the pinch roller arm assembly 3 Remove the P lim arm 4 and pinch arm load spring 6 2 1 2 5 Attachment procedure Attach the P lim arm roller to the pinch roller arm assembly Insert one end of the pinch arm load spring 5 into the hole the rising metal sheet of the LS chassis block assembly and hook
17. P 300 CD to the holders O and Adjust the height of the capstan motor using the thickness gauge Ref No J 16 Refer to 5 3 Note Be careful not to touch the center of capstan motor QO shaft and the FP 228 flexible wiring board DEW sensor with soldering iron or other tool C 7A Attachment position of Screw 228 flexible board Two screws lt Guide rall T2 d 1 4 x 2 5 B SANG camera pan C 2 M1 4 x 4 5 camera pan 2 main M1 4x 1 6 Screw Approx 0 5mm A FP 228 flexible board 2P DEW sensor Capstan motor Capstan spring 300 flexible board Capstan flexible board x Remove flexible board in the direction of the arrow FP 300 flexible board Capstan flexible board Remove the v2 six solderings Guide rail 2 Drum base assembly 299 flexible 7 Bik board 4P ZB 3 2 SS ap gt 0 7 ER 79 Remove the Guide 2 in the direction of the arrow U NN N 49 Timing belt Note Any foreign materials must not be attached to the capstan motor Fig 4 4 ud 4 5 Blind Plate Lock Guide 2 3 4 5 Removal Remove diode D001 tape LED from the notch of the plate Remove the flexible wiring board FP 301 from T sh
18. P 302 flexible board TG1 arm metal lt Three O claws Outside the edge of the shaft Inside the top edge of the metal LS chassis assembly view z LS grease cover Fig 4 14 4 15 LS Guide Roller Guide Lock Plate T Pinch Pusher Assembly Eject Arm 1 1 2 3 4 5 6 7 8 9 Removal Remove LS chassis block assembly Refer to 4 10 Remove the LS guide roller Remove the P pressure plate spring Remove the HLW cut 0 98 x 3 x 0 25 3 Remove the pitch pressure plate assembly 4 in the direction of the arrow Remove the relay gear 5 Remove the screw camera pan2 M1 4 x 1 6 6 Remove the guide lock plate T 7 in the direction of the arrow Remove eject arm spring and HLW cut 0 98 x 3 x 0 25 Note Do not reuse HLW cut 10 Remove the eject arm 60 2 Attachment procedure 1 2 3 4 5 6 7 8 9 Attach the eject arm spring 8 to eject arm 9 Hook one end of the eject arm spring 8 protrusion of the main chassis block assembly and attach the eject arm to the shaft Attach the HLW cut 0 98 x 3 x 0 25 9 Do not reuse the HLW cut Attach the guide lock plate T 7 while aligning it with the notches and 0 Attach the screw camera pan2 M1 4 x 1 6 6 Tightening torque 0 078 0 01 0 8 0 1 kgfecm Attach the relay gear 5 Attach the pinch pusher
19. Part No 701 3 065 932 01 2 MAIN M1 4X1 6 CAMERA 707 3 065 840 01 702 3 065 895 01 LEVER REEL RELEASE 708 3 065 935 01 703 3 065 896 01 PLATE BLIND 709 3 947 503 01 SCREW 1 4 704 X 3951 298 1 CASSETTE COMPARTMENT ASSY 710 X 3951 299 1 705 X 3951 302 1 DAMPER ASSY M901 Note DRUM 706 X 3951 297 1 GEAR ASSY R DRIVE 6 2 LS Chassis Block Assembly FP 301 not supplied FP 300 not supplied 759 757 758 756 7 FP 302 not supplied 772 767 769 ez 770 771 4 782 BASE S BLOCK ASSY GUIDE BASE T BLOCK ASSY GUIDE CHASSIS ASSY LS ARM BLOCK ASSY TG7 PAN 2 MAIN M1 4X1 6 CAMERA ROAD SPR PINCH ARM ROLLER P LIM ARM GUIDE T CASSETTE SPRING T RATCHET SCREW PRECISION P1 7X1 8 TYPES Ref Part No Description 751 3 065 822 01 RAIL S GUIDE 752 3 947 503 01 SCREW 1 4 753 A 7096 416 A 754 A 7096 415 A 755 A 7096 426 A 756 3 065 802 01 SPRING TG7 ARM 757 A 7096 414 A 758 3 065 801 01 RETAINER TG7 759 3 065 932 01 760 X 3951 303 1 ARM ASSY PINCH 761 3 065 823 01 ARM T RATCHET 762 3 065 794 01 763 3 065 792 01 764 3 065 834 01 765 3 065 824 01 766 A 7096 417 A SOFT ASSY T 767 7 627 852 38 768 3 065 832 01 PLATE LS CAM 769 3 065 828 01 ARM 5 RATCHET 770 3 065 829 01 PLATE S RATCHET RE 41 SPRING S TABLE T
20. Plate Assembly LS Arm Assembly Gear 2 GL Arm Assembly 1 1 2 3 4 5 7 Removal Remove LS chassis block assembly Refer to 4 10 Remove the guide lock plate S Refer to 4 17 Remove the relay gear 1 Remove the M slide plate assembly in the direction of the arrow Remove the LS arm assembly 3 and LS arm roller Remove the cam gear 2 Remove the GL arm assembly from the lower side of the cam relay gear 1 in the direction of the arrow 6 Note After removing the GL arm assembly fix the guide gear S T assembly 2 1 2 3 4 5 7 Attachment Attach the GL arm assembly to the shaft that the GL arm assembly 6 is positioned under the cam relay gear 1 Note The in phase markings of the guide gear S T assembly and GL arm assembly must be aligned While aligning the cam gear 2 6 with the dowel of the GL arm assembly attach the cam gear 2 6 Note The in phase markings of the cam relay gear 1 cam gear 1 and cam gear 2 must be aligned Attach the LS arm roller to the LS arm assembly While aligning them with the cam groove on the cam gear 2 6 attach them Attach the M slide plate assembly Attach the relay gear 0 Attach the guide lock plate S Refer to 4 17 Attach the LS chassis block assembly to the mechaical chassis Refer to 4 10 Note Check that the in phase
21. Switch 3Key 26 Hall Element H001 H002 T S Reel Photo Transistor Q001 Q002 Tape Top Tape End LED 0001 Tape LED nmn nn 27 LS Guide Roller Guide Lock Plate T Pinch Pusher Assembly Eject Arm n 28 Rotary Switch Cam Relay Gear Change Gear Assembly Timing Belt 29 Guide Gear Assembly Guide Gear T Assembly Cam Relay Gear 1 Guide Lock Plate S 30 LD Gear 4 Cam Gear 1 HC Drive Armas 31 M Slide Plate Assembly LS Arm Assembly Cam Gear 2 GL Arm Assembly 32 Adjustment Check and Adjustment of TG1 Back tension Position 33 Check and Adjustment of FWD RVS Back tension 34 Capstan Motor Azimuth Position Adjustment 35 Tape Path Adjustment C 36 Exploded Views Cassette Compartment Assy Drum Assy LS Chassis Block Assembly Mechanical Chassis Block Assembly 1 m Mechanical Chassis Block Assembly 2 Printed Wiring Boards and Schematic 44 1 Preparations for Check Adjustment and Replacement of Mechanism Block Before Replacement Check or Adjustment Refer to the DISASSEMBLY section of the SERVICE MANUAL of the respective models for details of removing cabinets and printed wiring boards When checking a mechanism ir making any adjustment to the mechanism or replacing mechanical parts be sure to use the Mode Selector IL and select the appropria
22. TH mode track shift mode TG4 TG5 TG6 TG2 Capstan shaft TG1 S reel TG7 Pinch roller Fig 5 5 Setting and releasing the track shift mode In case of the DCR TRV230 Setting Releasing 1 Select page 0 address 01 and set data 01 2 Select page F address 22 and set data 88 and press the PAUSE button 3 Select page 2 address 2E and set data 02 Note 1 Select page 0 address 01 and set data 01 2 Select page F address 22 and set data 80 and press the PAUSE button 3 Select page 2 address 2E and set data 00 4 Select page 0 address 01 and set data 00 Note Note In case of the Digital8 only set the data of page 2 address 2E 5 4 2 Tracking Adjustment Refer to Fig 5 6 5 4 3 No 7 Guide TG7 Adjustment 1 Playback tracking alignment tape WR5 INP NTSC WR5 1CP PAL Ref No J 6 1 2 Adjust the No 3 guide until the envelope at the entrance side 2 waveform becomes flat 3 Adjust the No 6 guide until the envelope at the exit side waveform becomes flat 3 The TG 3 6 zenith adjustment screws do not need to be adjusted No 6 guide TG6 No 3 guide Refer to Fig 5 7 Playback the tape and set the REV mode Confirm that tape slack does not occur in between the No 6 guide TG6 and capstan 2 If any tape slack occurs rotate the TG7 nut of the No 7 guide TG7 8 to remove the tape slack Playback the tape again and
23. aped portion of the blind plate in the direction of the arrow 2 Remove the screw camera pan2 main M1 4 x 1 6 8 Release hook notches 6 of the blind plate 4 in the direction of the arrow 8 Remove the reel release lever 5 in the direction of the arrow 2 Attachment procedure 1 2 3 4 5 Attach the release lever 5 to the blind plate Hang the notches 0 of the blind plate on the hook Attach the screw camera pan2 main M1 4 x 1 6 Tightening torque 0 078 0 01 Nem 0 8 0 1 kgfecm Attach the flexible wiring board FP 301 to the T shaped portion of the blind plate 4 Attach the diode tape LED to the notch of the blind plate Screw camera pan 2 main M1 4 x 1 6 Remove the blind plate in the direction of the arrow Remove FP 301 flexible board in the direction of the arrow Claw Remove the reel release lever in the direction of the arrow pa Notch ign Notch amp amp gt Notch eS 0001 Diode LED 4 6 Reel Table T Assembly T Soft Assembly 1 Removal procedure 2 Attachment procedure 1 Remove blind plate Refer to 4 5 1 Insert the T ratchet arm into the groove on the LS chassi
24. ay 0001 LED 5001 REC PROOF H001 T REEL SENSOR FP 301 FLEXIBLE CONDUCTOR SIDE 302 FLEXIBLE SENSOR CONDUCTOR SIDE TAPE END SENSOR 46 8mm Video ADJUSTMENT MANUAL K Sony Corporation 9 929 861 11 Personal VIDEO Products Company Printed Japan 2000 12 48 Published by Safety amp Service Engineering Dept
25. ay attention to the shapes 3 Fit the guide lock plate S 2 in the groove on the shaft and insert the portion into notch Then attach the plate with the screw camera pan2 main M1 4 x 1 6 Tightening torque 0 078 0 01 Nem 0 8 0 1 kgfecm 4 Attach the LS chassis block assembly to the mechanical chassis Refer to 4 10 SETIING THE GEAR POSITION Remove the guide lock plate S Cam relay gear 2 Cam relay gear 1 Screw the direction of the arrow camera pan 2 main Guide gear 1 4 1 6 T assembly 6 HLW cut 0 98 0 25 8 GL assembly Rotary switch Pay attention to the shapes gear 2 Guide gear Guide gear T assembly S assembly D Hole of mechanism chassis When attaching it coat the hatched portion with grease Two stop ring E type1 2 gear 1 pattern printed must be facing upward 4 Guide gear 5 assembly Cam gear 2 assembly Fig 4 17 4 18 10 Gear 4 Gear 1 Drive Arm Remove in advance HCL arm assembly and loading motor assembly beforehand Refer to 4 2 1 Removal procedure 2 Attachment procedure 1 Remove LS chassis block assembly Refer to 4 10 1 Attach the HC drive arm 5 under the drive base assembly 2 Remove the guid
26. bly Pinch arm assembly rear view P geam P lim arm roller Be careful not to drop Pinch road spring c CB Rising metal sheet Location where grease is coated Inside the top edge of the metal TG7 retainer 2 Pinch arm LS chassis block assembly LS chassis block assembly TG7 lock assembly di When attaching it coat the hatched portion with grease Fig 4 11 d 4 12 Guide Base T Block Assembly Guide Base S Block Assembly 1 Removal procedure 1 2 3 4 5 Remove LS chassis block assembly Refer to 4 10 Align the claw of the guide base T block assembly with the notch of the guide arm T and remove the guide base T block assembly Remove the screw M1 4 x 2 5 and remove the guide rail T Align the claw of the guide base S block assembly with the notch of the guide arm S and remove the guide base S block assembly Remove the screw M1 4 x 2 5 and remove the guide rail S 2 Attachment procedure 1 Align the holes on the guide rail S with the protrusions at two locations of the LS chassis block assembly and attach the guide rail S with the screw M1 4 x 2 5 5 Tightening torque 0 078 0 01 Nem 0 8 0 1 kgfecm 2 Attach the guide base S block assembly while aligning it with the groove on the guide arm S 3 Align the holes on the guide rail T 8 the protrusions at two locat
27. button cycles among MANUAL STEP AUTO in this order Fig b Mechanism name Present mode B MANUAL OFF STATUS T Motor ON OFF Present status of sensor appears example EJ Fig c Mechanism name Z Present mode B STEP OFF STATUS Present status of sensor appears example EJ Fig d Mechanism name Present mode OFF Motor ON OFF B AUTO STATUS Present status of sensor appears example Fig e 1 2 3 Mechanism Status Position Transition Table Using Mode Selector II M2000 Mechanism After selecting a mechanism deck select either the MANUAL or STEP test not AUTO using the Mode Selector II The desired mechanism status position can be specified by pressing the RVS or FE button The selected status appears on STATUS EJ lt USE lt LOAD lt STOP lt TURN lt RP lt REW 1 2 4 Battery Alarm Indication When the level of the battery used to supply power to this system decreases this display appears asynchronously When this happens all operations are disabled and the battery must be replaced w gt lt oja 0 is common and short 1 is common and open BATT DOWN CHANGE PLEASE Fig f 2 Periodic Inspection and Maintenance Be sure to perform t
28. drum base assembly with the reference pin and 3 Remove the screw M1 4 x 2 5 tighten the three screws M1 4 x 2 5 in the order of B 4 Remove the claw of the guide rail T2 from the hole and D of the drum base assembly in the direction of the arrow 5 3 Insertthe claw D of the guide rail T2 into the hole of the 5 Remove the three screws M1 4 x 2 5 4 drum base assembly and tighten the screw M1 4 x 2 5 Q 6 Remove the drum base assembly in the direction of the arrow Tightening torque 0 078 0 01 Nem 0 8 kgfecm 7 Remove the screw screw assy PW 1 7 x 2 6 4 Remove the drum assembly Refer to 4 1 8 Remove the drum earth and earth spacer 5 Attach the flexible wiring board FP 300 and capstan flexible board to the drum base assembly 6 Clean the tape running path Refer to 2 2 Screw hole M1 4 x 2 5 Guide rail T2 Remove the guide rail T2 in the direction of the arrow Claw Drum base assembly Remove the flexible board in the direction of the arrow B FP 300 flexible board Screw M1 7x 2 6 Drum ground Ground spacer Capstan flexible board FP 300 flexible board Capstan flexible board screw assy PW 4 Three screws M1 4 x 2 5 Two dowels Claw Fig 4 3 j 4 4 Guide Rail 2 Capstan Motor 1 Removal procedure 1 2 3
29. e lock plate S Refer to 4 17 2 Attach the cam gear 1 9 3 Remove cover sheet 1 and LD gear 4 The dowel of the HC drive arm 6 must be inserted into 4 Remove the T1 limiter arm 3 and gear 1 2 groove lower side of cam 1 2 5 Remove drive arm 6 the direction of arrow The in phase markings of the cam gear 1 4 cam gear 2 and cam relay gear 1 must be aligned 3 Attach the LD gear 4 2 with the cover sheet 1 4 Attach guide plate S 5 Attach the LS chassis block assembly to the mechanical chassis Refer to 4 10 6 Clean the tape running path Refer to 2 2 SETTING THE GEAR POSITION Cover sheet LS arm assembly M slide plate e Sse T1 limitter Cam gear 2 assembly Loading motor Cam j Cam relay assembly Y gear 1 K Coat than half of the grooves on both the inner and outer sides of the cam with grease Cam relay gear 2 Cam gear 1 HC drive arm C Hole of mechanism chassis When attaching it coat the hatched portion with grease LD gear 4 Attachment direction The larger gear must be facing upward T1 limitter arm m o Remove the HC drive arm in the direction of the arrow Cam relay gear 1 Cam gear 2 Fig 4 18 ET 4 19 Slide
30. e the capstan flexible board and flexible wiring board 300 from the holders 00 and in the directions of the arrows and Push the damper assembly in the directions of the arrows and and remove it from the notch of the LS chassis block assembly Remove the two screws camera pan2 main M1 4 x 1 6 9 With cassette compartment assembly 19 half opened move the face plate in the direction of the arrow and remove it from the grooves and 7 the LS chassis block assembly Remove the cassette holder S and cassette holder T 9 of the cassette compartment assembly 49 from the groove on the LS chassis block assembly mode to move up the cassette compartment 12 2 Attachment procedure 1 2 3 4 5 Set the USE mode Insert the cassette holder S of the cassette compartment assembly and cassette holder into the grooves both sides of the LS chassis block assembly While moving down the cassette compartment assembly lift up the face plate in the direction of the arrow and keep this status Then insert the face plate in the grooves and on the LS chassis block assembly Tighten the two screws camera pan2 main M1 4x1 6 2 Tightening torque 0 078 0 01 Nem 0 8 0 1 kgfecm Move the damper arm of the damper assembly 3 to the 4 o clock position and insert the damper assembly into the hole on the LS chassis block ass
31. embly and the dowel of the cassette holder T 9 Align the damper assembly 3 with the notch of the LS chassis block assembly and rotate the damper assembly in the opposite direction to the arrow to fix it assembly Cassette holder T SCA lt Move the damper arm to the 4 o clock position Insert into these holes and attach Push Remove the damper assembly in the direction of the arrow V 3 Damper assembly CD FP 300 flexible board Capstan flexible board Remove the flexible board in the direction of the arrow amp 8 FP 300 flexible board Capstan flexible board Be careful not to deform here While pressing toward the inside 49 Cassette compartment assembly Two screws camera pan 2 main M1 4 x 1 6 Face plate Cassette holder S Remove the cassette compartment assembly While pressing w careful not to or tno toward the inside e lorm nere When attaching it coat the hatched portion with grease Fig 3 2 4 Check Adjustment and Replacement Note For removal procedure of the cabinets printed wiring boards and other parts refer to DISASSEMBLY of the Service Manual of the respective models 4 1 Drum Assembly 1 Removal procedure 2 Attachment procedure 1 Remove the three screws drum fit
32. f the spring on the same location of the LS chassis block assembly where you have taken note when the spring is removed 9 Attach the RVS arm spring 10 Check the back tension Refer to 5 1 Note The BT band assembly 6 must be completely inserted into the groove on the side of the reel table S 9 N w Open claw of the reel table S in the directions of the arrows N 2 3 Push switch REC proof ock guide T TG1 arm 3 Cassette guide T Remove the four solderings NN V NNN ANA S Check the location of assemY the reel table S assembly M Thin Reel table S assembly is at right angles When attaching it insert it under the LS chassis assembly 6 BT band assembly Never coat grease never attach any foreign materials nor bend the assembly Fit here S e a Reel table T Q AVS arm spring S assembly 275 TG1 arm oo Rs spring TG1 arm spring Double hook side BT band assembly Double hook side Mechanism status before removing the parts in the direction of the arrow When attaching it coat the hatched portion with grease 4 14 Element H001 H002 T S Reel Photo Transistor 0001 Q002 End 0001 LED 1 1 2 3 4 5 6
33. he LS cam plate in the direction opposite to the drum to remove play Fix the two screws precision type3 P1 7 x 1 8 Tightening torque 0 108 0 01 Nem 1 1 S Two screws precision type3 P1 7 x 1 8 Thickness gauge t 0 6mm Two dowels LS cam plate 1 Guide S block assembly LS chassis block assembly Push the LS chassis block assembly to remove play Fig 4 9 4 10 LS Chassis Block Assembly 1 1 2 3 4 5 6 Removal Move LS chassis block assembly between LOAD Remove the blind plate Refer to 4 5 Remove the R drive gear assembly Refer to 4 8 Remove the HCL cut 1 8 x 4 x 0 5 Remove the three screws M1 4 x 2 5 Remove the LS chassis block assembly in the direction of the arrow USE and 2 Attachment procedure 1 2 3 4 5 6 Insert LS guide and LS guide T2 pin of the mechanical chassis block assembly into the slot of the LS chassis block assembly Insert the pin of the LS arm assembly into the cam groove on the LS cam plate face the TG7 drive pin in the direction of the arrow and insert it to the two slot of the mechanical chassis Then tighten the three screws M1 4 x 2 5 2 in the order of and Tightening torque 0 078 0 01 Nem 0 8 0 1 kgfecm Attach the HCL cut 1 8 x 4 x 0 5 to the pin of the
34. he following maintenance and inspection so that the machine delivers its full performance and functions and to protect the machine and tape Also perform the following maintenance items after completing the repair work regardless of the number of hours the machine has been operated by the user 2 1 Rotary Drum Cleaning 1 Press a wiping cloth Ref No J 2 moistened with cleaning fluid Ref No J 1 lightly against the rotary drum Rotate the upper drum with a super fine applicator slowly in the counter clockwise direction to clean the rotary drum Caution Never rotate the rotary drum by turning on the main power of the motor or rotate it in the clockwise direction Never move the cloth vertically against the head tip as this will surely damage the video head the video head must not be cleaned by any other 2 2 Tape Path System Cleaning Refer to Fig 2 1 1 Setthe EJECT state Clean the tape running path 2 3 4 5 6 and 7 pinch roller and capstan shaft and lower drum with a super fine applicator Ref No J 3 moistened with cleaning fluid Note 1 careful not to allow oil or grease of the various link mechanisms to get on the super fine applicator Ref No J 3 Note 2 Once the super fine applicator has been moistened with alcohol different methods do not use it to clean other mechanical parts such as the tape guide However the pinch roller is cleaned with alcohol Note 3
35. imuth adjustment LS cam plate position adjustment If the micro processor IC in the adjustment remote commander is not the new micro processor UPD7503G C56 12 the pages cannot be switched In this case replace with the new micro processor 8 759 148 35 J 5 J 10 J 4 J 9 J 3 J 8 J 2 J 7 b xg Z J 6 J 16 q Fig 1 1 1 2 Mode Selector Il Operating Procedure 1 2 1 Introduction The Mode Selector II is a mechanism drive tool that assists maintenance work of the various mechanism decks It has following functions 1 Manual Test In this mode the motor of the mechanism deck is powered only during the period while the switch is turned on manually Using the Manual Test the operator can freely control the motor of the mechanism deck 2 Step Test In this mode the motor of the mechanism deck is kept turned on until the mechanical status is changed from the present mechanical status that is obtained from the sensor information The Step Test is used to confirm a series of movements of the mechanism deck 3 Auto Test The Mode Selector II stores the status transition table in its memory LCD display screen Selector button Mode Selector II Ref No J 13 External battery is connected here as as data indicating the respective modes of the mechanism deck a power supply The status transition table can be used to confirm
36. ions of the LS chassis block assembly and attach the guide rail with the screw M1 4 x 2 5 Tightening torque 0 078 0 01 Nem 0 8 0 1 kgfecm 4 Attach the guide base T block assembly 1 while aligning it with the groove on the guide arm T Note Do not forget to hook the plate spring 5 Withdraw the joint portion of the guide arm S and the guide arm T in the directions of the arrows and 6 6 Attach the LS chassis block assembly to the mechanical chassis Refer to 4 10 7 Clean the tape running path Refer to 2 2 Note Be careful of the shape of the guide base T S block assembly Guide base T block assembly Guide base small Guide base S block assembly Guide base large Two rising metal sheets Screw M1 4 x 2 5 3 Guide rail T Two dowels Screw M1 4 x 2 5 6 Guide rail S While aligning the direction of the claw assembly be careful of the shape remove the guide base T block assembly When attaching the guide base T block Two rising metal sheets Guide base large Guide base small Guide base T block assembly Guide base S block assembly Guide arm T Do not bend the spring LS chassis block assembly Fig 4 12 25 4 13 TG1 Arm Reel Table S Assembly Push Switch 1 1 2 3 4 5 7 8 9 Remo
37. marking of each gear is aligned SETTING THE GEAR POSITION D Hole of mechanism chassis Rotary switch Cam gear 2 Cam relay Cam relay 2 gear 2 gear 1 assembly Guide gear Guide gear Cam gear 1 T assembly S assembly Guide gear T assembly LS arm assembly M slide plate assembly 2 Remove the M slide plate assembly in the direction of the arrow LS arm roller Be careful not to drop Coat the cam groove 2 Relay gear with grease Cam gear 2 Remove the GL arm assembly in the direction of the arrow 8 M f T Cam relay gear 1 lt TAA JZ lt CS t Z Cam gear 1 22 22 Guide gear 7 S assembly When attaching it coat hatched portion with lt Fig 4 19 s 5 Adjustment 5 1 Check and Adjustment of TG1 Back tension 1 Check Procedure 2 Adjustment Procedure 1 Assemble the mechanism deck into the main unit 1 Remove the cassette compartment and the blind plate 2 Thread anormal tape and let the machine enter the PB or REC 2 Adjustthe position of the TG1 guide by changing the tilt of the mode rising metal sheet of the LS chassis block assembly 3 Check that the distance between the upper flange of the TG1 guide and the side surface of the LS chassis block is 12 0 0 4 mm range of fluctuation 0 5 mm or
38. nd remove the FP 299 flexible wiring board Push up the dowel of the rotary switch 7 from the bottom of the mechanism chassis assembly and remove the rotary switch in the direction of the arrow 2 Attachment procedure 1 2 3 4 5 6 7 8 Insert the dowel of the rotary switch into the hole on mechanism chassis assembly and attach the rotary switch clockwise Align the FP 299 flexible wiring board with the reference hole on the mechanism chassis and solder the flexible wiring board to the rotary switch at four locations Attach the change gear assembly with the HLC cut 0 98 x 3 x 0 25 Attach the timing belt 2 Note There must be a clearance between the rotary switch and timing belt Attach the cam relay gear The in phase markings of the rotary switch 7 cam relay gear 2 and cam relay gear 1 must be aligned Attach the guide lock plate T pinch pressure assembly and eject arm Refer to 4 15 Attach the LS chassis block assembly to the mechanical chassis Refer to 4 10 Clean the shaft of the capstan motor Refer to 2 2 7 Remove the rotary switch in the direction of the arrow Clearance must exist between the claw of the rotary switch and the belt HLW cut 0 98x 0 25 Attachment direction The ribs must be facing upward es 1 Cam relay gear 2 Dowel SETTING THE GEAR POS
39. or 2 seconds or longer while the power is on RVS FF SEL 4 Mecha Select When the main power is turned on the MECHA SELECT display appears on the LCD screen Select the desired mechanism name using the RVS and FE buttons Selection is complete when the SEL button is pressed Fig A shows the B mechanism 5 Test Type Select Using the RVS and FF buttons select a desired test type from the three types of MANUAL STEP and AUTO Selection is complete when the SEL button is pressed 6 Manual Test In this test the motor of the mechanism deck is turned on only during the period while the RVS or FE button is pressed manually 7 Step Test In this test the direction of motor movement is determined by the RVS and buttons The motor of the mechanism deck is kept turned on until the mechanical status is changed from the present mechanical status that is obtained from the sensor information 8 Auto Test In this test the mechanism deck is tested as to whether it performs a series of movements correctly in accordance with the operation sequence that is memorized earlier for each type of deck by checking the output signals from sensors with the stored memory Turning on the RVS or FF button performs the same operation gt MECHA SELECT B Pressing the RVS FF button changes the mechanism name Fig a TEST TYPE SELECT MANUAL Pressing the RVS or FF
40. ove the S ratchet spring 2 Attach the S ratchet RE plate 4 to the shaft of the LS chassis 4 Remove S ratchet arm 3 in the direction of the arrow block assembly Note Do not reuse the S ratchet arm 3 Attach the S ratchet arm 3 to the shaft of the LS chassis block 5 Remove 5 ratchet RE plate assembly At this time the dowel of the S ratchet RE plate 4 6 Remove screw camera tapping M1 4 x 2 must be inserted into the U shaped notch of the S ratchet arm 7T Remove the cassette guide S 6 in the direction of the arrow 4 Hook the 5 ratchet spring on the notch of the 8 ratchet arm and attach it to the notch of the LS chassis block assembly 5 Attach the RE return plate spring to the notch of the LS chassis block assembly 6 Attach the blind plate Refer to 4 5 lt Remove the S ratchet arm in the direction of the arrow Do not reuse the S ratchet arm Fixed here T NG S ratchet spring Remove the S ratchet RE plate in the direction of the arrow S ratchet plate 3 ratchet arm S ratchet spring 6 Remove the cassette guide S in the direction of the arrow gt G 2 RE return plate spring Screw camera tapping M1 4 x 2 9 4 8 R Drive Gear Assembly LS Plate 1 Removal procedure 1 2 3 4 5 Remove the blind plate Refer to 4 5 Remove the lumiler cu
41. s 2 Open the claw of the reel table T assembly in the directions block assembly to attach it of the arrows and and remove the reel table T assembly 2 Attach the T ratchet spring to the notch of the T ratchet arm 3 Remove the T soft assembly 2 in the direction of the arrow 4 and LS chassis block assembly 3 Insert the T soft assembly into the groove on the LS chassis 4 Remove the T ratchet spring block assembly 5 Remove the T ratchet arm 2 in the direction of the arrow 4 Check the location of the reel table T assembly and attach the LS chassis block assembly to shaft 5 Attach the blind plate Refer to 4 5 Check the location of the reel Reel table T table T assembly assembly The reel table T gt Open claw of the reel table n d a in the directions of the arrows pui and N P Remove the T ratchet arm in the direction of the arrow Remove the T soft assembly in the direction of the arrow T ratchet f A lt INC aS When attaching it coat the hatched portion with grease 19 4 7 5 Ratchet RE Cassette Guide S 1 Removal procedure 2 Attachment procedure 1 Remove blind plate Refer to 4 5 1 Attach the cassette guide S to the notch of the LS chassis 2 Remove the RE return plate spring block assembly with the screw camera tapping M1 4 x 2 3 Rem
42. t washer 0 98 x 3 x 0 13 Remove the R drive gear assembly 2 Remove the HLC cut 1 8 x 4 x 0 5 8 the two screws precision type3 P1 7 x 1 8 Remove the LS cam plate 2 Attachment procedure 1 2 3 Attach the R drive gear assembly 2 with the lumiler cut washer 0 98 x 3 x 0 13 9 Align the LS cam plate with the two dowels of the LS chassis block assembly temporarily fix the LS cam plate with the two screws precision type3 P1 7 x 1 8 then attach it with HLC cut 1 8 x 4 x 0 5 3 Adjust the position of the LS cam plate Refer to 4 9 LS cam plate Lumiler W cut 0 98 x 3x 0 13 Do not bend the claw R drive gear assembly 4 Two screws precision type3 1 7 1 8 When attaching it coat the hatched portion with grease Two dowel When attaching it coat the hatched portion with grease Fig 4 8 ze 4 9 LS Plate Position Adjustment 1 Adjustment Procedure Perform loading of the LS chassis block assembly O until the tip of the guide base S assembly reaches the drum base 1 2 3 4 assembly Loosen the two screws precision type3 P1 7 x 1 8 of the LS cam plate and slide LS chassis block assembly to drum side so as to remove play Insert the thickness gauge 0 6 mm Ref No J 16 between the LS cam plate and the LS chassis block assembly Push t
43. te status of the mechanical deck such that the mechanical status is suitable for the desired work Refer to section 1 2 Mode Selector II Operating Procedure for details on how to enter the mode shown in a rectangle of this manual mode in the sequent sections Assemble and adjust the parts in the USE mode if any mode is not specified in this manual 1 1 Service Jigs and Tools Part code Jig inscription Cleaning fluid Y 2031 001 0 Wiping cloth 7 741 900 53 Super fine applicator made by Nippon Applicator P752D Head eraser commercially available Tape path Mirror small oval type J 6080 840 A GD 2038 Tape path NTSC WR5 1NP 8 967 995 02 For tracking adjustment Alignment tape PAL WR5 ICP 8 967 995 07 FWD RVS take up torque cassette J 6080 824 A GD 2086 Tape path screwdriver J 6082 026 A For tape guide adjustment Adjustment remote commander RM 95 upgrated J 6082 053 B Tape path for setting the path mode Note MD process table J 6082 166 A Floil grease 7 662 001 39 Torque screwdriver J 9049 330 A Mode Selector II J 6082 282 B Mode Selector II conversion board J 6082 516 A Mode Selector II ROM Ver 1 6 J 6082 314 E Thickness gauge Other required equipment Oscilloscope Analog tester 20 9 911 053 00 Note For capstan az
44. the AUTO tracking mode and with that in the PATH mode Confirm that the amplitude of the RF waveform decreases to about 3 4 when the tracking alignment tape is switched from the AUTO tracking mode to the PATH mode Refer to Fig 5 9 During step 1 confirm that the minimum amplitude E is 65 or more of the maximum amplitude E max of the RF waveform Refer to Fig 5 10 Confirm that the RF waveform does not fluctuate too excessively Refer to Fig 5 11 Fig 5 8 og e mmm gt 65 96 Fig 5 10 5 4 5 2 Rise up Check Refer to Fig 5 12 1 Playback the tracking alignment tape WR5 1NP NTSC WR5 1CP PAL Ref No J 6 2 Turn OFF the Track Shift mode 3 Eject the cassette tape once Then insert the cassette tape for loading again 4 Confirm that the RF waveform rises up to the flat envelope within 3 seconds after the machine enters the PLAY mode Check also that the tape slack does not occur at around the pinch roller 5 the tape in the CUE REV and the FF REW mode Then playback the tracking alignment tape and confirm the RF waveform rises up to the flat envelope within 3 seconds after the machine enters the PLAY mode Check also that the tape slack does not occur at around the pinch roller 6 Repeat the above steps 3 to 5 once again for re check Capstan
45. ting M1 4 x 2 5 fixing 1 Align the two reference holes A and B on the rear of the drum with the reference pins A and B of the drum base assembly 2 Attach the drum with the three screws drum fitting M1 4 2 5 in the order of 9 and Tightening torque 0 078 0 01 Nem 0 8 0 1 kgfecm 3 Clean the drum while referring to 2 1 4 Adjust the tape path Refer to 4 Tape Path Adjustment the drum and remove the drum Note Do not touch the outside circumference Drum rear view Hole reference hole B Drum Hole reference hole A as C A f M AR Reference pin B 7 Drum assembly Three screws drum fitting M1 4 x 2 5 Co Fig 4 1 44 4 2 HCL Arm Assembly Loading Motor Assembly 1 Removal procedure 2 Attachment procedure 1 Hook the HC arm spring in the direction of the arrow 8 1 Coat the worm shaft and gear of the loading motor assembly 2 Remove the HCL arm assembly 2 from the loading motor 4 with grease assembly 2 2 Insert the three claws of the loading motor assembly 4 into 3 Remove the screw M1 4 x 2 5 the groove on the mechanism chassis assembly 4 Remove the three claws of the loading motor assembly from 3 Attach the screw M1 4 x 2 5 3 the mechanism chassis assembly in the direction of the arrow Tightening torque 0 078 0 01 Nem 0
46. ust not contain any dust or other materials otherwise excessive abrasion and seizure of the bearing could occur A drop of oil means the amount of oil as shown in the illustration in the right which is the amount that is attracted to the top of a rod of 2 mm diameter On Grease Besure to use the specified grease only If oil of different viscosity is used it can cause various troubles Floil grease Part No 7 662 001 39 Be sure to use grease into which dust is not mixed The amount of grease is 1 to 1 5 mm diameter in length Cleaning w Check Metal rod of 1 mm diameter 1 mm diameter Fill the oil of about 2 mm depth Oil Fig 2 2 3 Before Replacement Check or Adjustment 3 1 Phase Adjustment The phase adjustment of this mechanism block has been adjusted by using the in phase markings shown in the following figure When replacing or assembling the parts check the phase Rotary switch Front side GL arm assembly 2 EU Cam gear 2 O Drum side Guide gear S assembly 3 Hole of mechanism chassis Guide gear T assembly NEN HC drive arm Cam gear 1 LS arm assembly M slide plate assembly Fig 3 1 11 3 2 Cassette compartment assembly 1 Removal procedure 1 2 3 4 5 6 Set the EJ assembly 9 Remov
47. val Remove the arm spring D Note Take note of the position where the spring has been hooked Remove arm 2 Open the claw of the reel table S assembly 4 in the directions of the arrows B and and remove the reel table S assembly Remove the RVS arm spring 6 Rotate the S ratchet arm 3 in the direction of the arrow and remove the BT band assembly Remove the lock guide 7 Remove the four solderings of the LS 057 board Remove the two claws 9 of the cassette guide T 49 from the notch of the LS chassis Remove the push switch 3key by releasing the two claws of the cassette guide T 2 2 Attachment procedure 1 Attach the push switch 3key to the cassette guide T 42 with the two claws 40 2 Attach the cassette guide T 2 to the notch of the LS chassis block assembly with the two claws 9 3 Solder the cassette guide T 42 to the LS 057 board at the four locations 4 Attach the lock guide 5 Attach the BT band assembly 6 6 Check the location of the reel table S 4 Then rotate the S ratchet arm 3 in the direction of the arrow and insert the band of the BT band assembly 6 into the groove on the side 7 Attach the BT band assembly to the TG1 arm 2 and attach it to the mechanism chassis block assembly 8 Check the shape of the hook of the arm spring 1 Hook one end of the spring on the arm 2 Then hook the other end o
48. whether a mechanism deck is operating normally or has abnormality from a Alligator clip series of movements of a mechanism deck If an abnormal status Relay board transition is detected during operation the NG indication appears already connected and the mechanism stops moving _ Fig 1 2 Mode Selector Il J 6082 282 B connection diagram Alligator clip not used in M2000 mechanism M2 hani Mode selector black 6 not used in 2000 Relay board ox lt lt Mode selector II conversion board M Ref No J 14 Connector white 6 pin Or NK d Battery such as NP 55 NP 77 power supply Fig 1 3 1 2 2 Operation 1 Operation Flow Chart Note The ROM in the Mode Selector II supports the M2000 mechanism MECHA SELECT SEL Y From any status MODE SELECT __ RVS Press RVS and FF for 2 sec simultaneously 43 Main power is turned off MANUAL TEST TEST SEL RVS SEL 2 Mode Selector Power On Turn the main power of the Mode Selector II follows Press the SEL button Inr RVS AUTO TEST 3 Mode Selector Il Power Turn off the main power of the Mode Selector II as follows Press the RVS and FF buttons at the same time f

8mm Video MECHANICAL ADJUSTMENT MANUAL IX

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