Service Manual Service Manual
Contents
1. R4 5 8240 en yal 4 ict d m i 552 gag Wi E d ol d pi L5 8051 TS LJ EN 083 Coo I Ines uu M cu S RARAS 45 22 Se gef N P 1644 is eei FEE 060 lea 63611 51 p COs 5 E a 4 val 49 060 ENEO Li L ed 180 609 I CE 619 tat t5 gs By m 1 RE cal C4 555 b i gat SEE TS REA 161 e Eig 1030 1 a ras i E 03 Pi 1 17 RES RA is 1 1095 d m 1 Y LU Ki 5 E C CH 27 RGD Sols S 0401 ipo 1 R43 a 1030 2 z 2 5 Peo gn CGB WW 600 0400 4 WWW CAS KR pi CONAI 140 141 051 ELIG 45 o m F2. 1242 2 RS232C PCB Part Location MW 6158 PMW 0400 A au POWER DRY RS232C 22 3 Recharge PCB Part Location 22 AJ 007 R70 R72 R71 bs oOo D76 D73 MW II Recharge PCB 6M0 PMW 0400 0 4 E L Inverter PCB Part Location MW 2 E L INVERTER 6180 PMW 0400 0 23 5 Rear Display PCB Part Location MW 2 6110 PMW 0400 0 CAS CO KR MODEL NO PART NO SEV CONTENTS MAIN PCB ASS Y SPECIFICATION ST USED IN EMBLY FIRST MADE FOR MW END FINISH DO NOT DIMENSIO SCALE DRAWI ARE IN SALE D G PART NO 2 4 5 4 A 5 6 C FORM A3 mmx420mm 25 3 4 The Error Message A Error Message Error Reasons amp Solutions Note Span calibrate the scale if this error is still CAL Er Calibration Error displayed check EEPROM Real Time Clock rtc Check Real Time Clock Error Check for platter or platform obstruction Sample weight is lower than standard weight in counting and percent mode Standard weight MW II 300 Counting mode 2g Percent mode 5g Underload Error Remove all items from platter and turn on the Overload Error power f you want to initialize EEPROM press the SET key Minimum unit weight is
3. 19MOg 2 ON To Main PCB PWR GND 1OuF tOV Tantal LOADCELL 300g 1mv V 3Kg 1mV V 120 R2 30pF iuF 10V Tantal C18 1 105 5 R4 49 9k 105 5 07 10uF 10V Tantal BOOST VIN ICL7660 C23 CAP VOUT 1000F 16V ELEC 10uF 16V ELEC 1OuF 10V Tantal 10uF 1DV Tantal C15 10uF 1DV Tantal 0 10 cd 48 10 OuF 10V Tantal C 2 1N4148 14 10uF 1 V Tantal L 16 lt 17 10uF 10V Tantal GND Return OP W Gnd 32 768KHZ GND Return x GND Return 16 TO MAIN CIRCUIT CPU Title MW series ANALOG CIRCUIT AMP FILTER A D Power Bize A3 Document Number 6100 PMW 0400 A lev 00 ate Monday June 04 2001 Sheet 3 of S ON H3MOd Q V YINI E L INVERTER PCB To EL Power Vin 1031 81350HG E UN IN o C36 E L30 DISPLATY BACK E LIGHT OPTION 100uF 16 8 FROM MA
4. ASS Y 240 M24 ERDP UNO1 01 2631 00 0002 0 6110 PMW 0400 A 7212 000 9758 0 7806 Y0W 0030 0 7830 100 3023 0 VFD CUSHION DISPLAY PCB LCD CONNECTOR WAFER REAR DISPLAY WIRE 30 20 6T 6110 PMW 0400 A 9758A R F M 11 YDW200 30 MW 2 30P 30P 230 MW 2 32 UNIT EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA Q TY LOCATION 4 BR HB cc c Bie La RS C36 T30 Option R 1070 074 073 070 71 072 073 74 75 76 070 71 71 73 R75 R74 R70 R72 L70 C75 C70 71 76 C72 C77 C74 C73 CN70 Option D LCD11 B MECHANICAL PART MODEL MW 11 300 NO MAT L NEW CODE PART NAME SPEC IF CATION ASS Y UPPER COVER 240 M21 MUPC UNO1 01 1 2000 00 0100 0 UPPER COVER ABS 750 190 291 55 2000 A00 0117 0 UPPER COVER ABS 750 190 291 55 2 2050 MW2 0000 0 DISPLAY COVER 2050 MW2 0338 5 DISPLAY COVER M 11 300g REAR 3 2050 MW2 0338 4 DISPLAY COVER M 11 300g 2050 MW2 0338 5 DISPLAY COVER M 11 3000 4 2100 MW2 0000 0 MEMBRANE S W LEXAN MW II 5 1810 MWO 0033 2 SPEC PLATE MW 120 1200 11 SS 6 1210 00 0020 0 PLATFORM 35 10515 7 2631 A00 0021 A DOUBLE TAPE 034 8 1000 00 0115 0 TRAY 130 0 5t 9 2000 00 0108 0 L C HOLE COVER 59 39 6 11 5 10 1590 00 0036 0 CONDUCTIVE SPRING 12 8 4 0 3t ASS Y
5. DETAIL A BOLT SPECIFICATION NAME OR TITLE FIRST USED ASSEMBLY FIRST MADE FOR CHECKED A4 210mmx29 7mm 2 Calibration amp Program code download A General calibration 1 Span Calibration C SPAN 1 CAL Switch is located in the battery cover at the bottom of the scale While pressing the switch turn on the power then you will go to calibration mode 2 The display will shows CALMod three times and C SPAN 3 Press the SET key to go to C SPAN menu 4 The display will shows UNLOAd then press the SET key Note that there is nothing on the platter If you want to cancel this span calibration press the ZERO key 5 Press the SET key then the display shows StAbLE Note that the scale should be stable 6 When the display shows LOAd place the weight of maximum capacity on the platter then press the SET key 7 The display shows StAbLE and End then span calibration is finished 2 Capacity C CAPA 1 Press the MODE key until the display shows C CAPA menu in the calibration mode 2 Press the SET key to go to C CAPA menu 3 Press the MODE key until the display shows maximum capacity of your scale 4 Press the SET key to save If yo
6. 42 C4 1 2 3 4 5 060 40 061 040 60 01 2 3 R64 67 31 R3 4 30 69 2 R70 R32 50 51 52 53 R61 R54 55 56 57 43 40 60 33 34 35 R65 71 R68 69 1 844 45 46 47 48 49 62 63 66 69 81 2 160 61 C49 1 20 25 18 1 18 19 19 1 13 14 10 17 662 051 65 31 23 69 022 63 C35 C11 2 8 9 12 15 16 21 24 26 27 28 29 30 32 33 34 36 42 43 45 46 47 48 52 53 60 61 64 66 67 68 640 41 NO 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 55 56 oon OO N N WP MAT L NEW CODE 67 12 CHP 0300 0 6720 CAP 0105 A 6800 F00 0220 0 7002 200 0070 0 7010 20 3276 0 7010 210 1105 7212 000 9758 7520 00 2032 7600 STA 1902 0 7805 CCN 6702 0 7805 CCN 6703 0 7805 CCN 6708 0 7807 0008 0 7807 0008 7821 CJM 0002 0 7821 CJM 0003 0 7806 YDA 0030 0 7222 000 0001 0 7232 0RG 0004 0 2090 H00 0007 0 RS232C PCB ASS Y 6158 PMW 0400 8 7610 STA 0302 0 7805 CCN 6703 0 7805 CCN 6704 0 7812 000 0009 7840 100 0905 0 POWER ASS Y 7840 WO0 1216 0 7840 100 2221 0 7860 GN0 0210 0 7860 GN0 0040 0 6180 PMW 0400 0 6220 100 1350 0 6280 100 1266 0 6280 100 1815 0 6506 MF3 0010 0 6506 MF3 0100 0 6506 MF3 1000 0 6704 25 0100 0 PART NAME CHIP CONDENSER POLYESTER CONDENSER EMI FILTER PIEZO BUZZER CRYSTAL CRYSTAL LCD MW 2 BATTERY TACT S W CONNECTOR WAFER CONNECTOR WAFER CONNECTOR WAFER FPC CONNECTOR FPC CONNECTOR
7. 11 0592MHZ 010 28 27 BUSY 26 25 24 5 SCLK HS RESET TO LCD DRIVER L G LON 1021 12 9 C51 1 o 10u 10V ELEC R54 855 856 R57 2 VD 3 6 25 k C46 LR 4 C48 vcc Bo M E 232 xi TO RS232C PCB Di C2 TDK220 5 1 14 GND 08 TIOUT Hi 1 RIOUT 9 RIN a 2 KM93C46 4 2 d 32 768KHZ 040 TDK220 KDS184 iL vec 4 220u 10V elec R42 2 QSCO CLKOUT Ha R43 i NT SCL C44 2K vss SDA t0u 10V Tantal 10K H605215 lt lt 049 PCF8563 uds eu tte Mw Series MAIN CIRCUIT Lead wire CF cR2032 s Soldering 7 Document Number Rev A3 6100 PMW 0400 A 00 14 Thursday May 31 2001 VD RS232C PCB R69 C66
8. This scale must be installed in a dry and liquid free environment Do not subject the scale to sudden temperature changes Do not subject the platter to sudden shocks Ui KR U N If the scale is not properly level please adjust the 4 legs at the bottom of the scale turn legs clockwise or counterclockwise so as to center the bubble of the leveling gauge inside the indicated circle C Specifications MW II 200 MW II 300 MW II 2000 MW 3000 MAX CAPACITY 300 g 2 kg 3 kg READABILITY 0 01 g 0 01 9 0 1g 0 1g TARE SUBTRACTION 200 g 300 g 2 kg 3 kg DISPLAY 6 digit LCD g oz tl PCS dwt mom ct GN lb WEIGHING UNIT LINEARITY REPEATABILITY STABILIZATION TIME 2 3 seconds DISPLAY SPEED 5 times seconds INTERFACE RS232C Adaptor DC12V 300mA POWER SOURCE Recharge Adaptor DC12V 850mA Dry Battery 1 5V x 6 AA size POWER CONSUMPTION 0 4 W Display Backlight Using backlight cut the battery life by 30 4096 e Type Rechargeable Battery OPTION NiCd NiMH Battery 7 2V Adaptor DC 12V 850mA Approx 12 hours NiMH battery type Dual Display OPERATING TEMPERATURE PLATTER SIZE mm 300 158 144 6 PRODUCT WEIGHT 1 04 kg 1 8 kg PRODUCT SIZE mm 189 W x 271 0 x 83 H 189 W x 271 0 x 83 H 10 40 D Sealing Method APPROVED SEALING METHOD SEALING BRACKET
9. 09 9 C OptbL ON OFF 23 f B Woo 9 C ZPASS 10PEr 2PEr 7 S 17 XJ Y Ex C Unit 2 g ct oz lb tl dwt mom gn pcs 2 lt 3 KS So Y C GrvtY C G OLdG C G NEwG lt CY er OEC Y 5 C ZtrA C OFF 0 5d 1 0d 2 0d 3 0d 4 0d lt 7 gt 527522 5 m CSELFC ON OFF 2 9 Vx yz ABC lt 7 2 5 x 5 C fESEt Yes No 4 2 5 Increase internal Value Decrease internal Value Zero adjustment C How to Confirm the Setting Value 1 Turn on the power and connect the scale to PC with RS232C cable 2 Open the terminal on PC and adjust COM 2 and transmission speed to the scale 3 Press the P on the keyboard of PC then you will hear the beep on the scale Check the weight on the terminal 4 f there is no response on step 3 check the cable port transmission speed 5 Enter 83419 on the PC terminal you will go to debugging mode 6 Press Ctrl R key you will see the data as below the PC terminal If not enter 83419 slowly CAS MW 2 300 Model STD V2 00b Code Version Comp Date Date of Code Compile lt Code Version 2001Mar 14 174117 YYYYMMMDD HHMMSS 2001 04 27 16 33 15 The Present Time Weight 719 Weight AD aver 25002 Internal AD value AD aver2 7753 aver Zp Cal CalFact Zp Cal 16518 Zero AD value Fp Cal 944804 Span AD value Ca
10. 2 MACHINE SCREW CONNECTOR WIRE BATTERY COVER CUSHION ASS Y C T BOX 240 M21 MCTB UNO1 01 AC ADATOR AC ADATOR AC ADATOR C T 1 POLY ETHYLENE PAD POLY ETHYLENE BOX MANUAL POLY BAG TRAY POLY BAG SET POLY BAG SILICAGEL NI MH BATTERY LOAD CELL ASS Y LLA BMW 302G 0000 0N SPECIFICATION 5 3 10 M3 10 2P 70 170 MW I 1 80 26 21 EVA 110 220 12V 300mA 110 220 12V 850mA 220V 12V 850mA MW 2 268 200 110 345 208 170 250 0 051 200 250 0 05t 270 350 0 04t 10g GP 130AAHC 1 2V L C 2kg 3kg 36 UNIT EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA Q TY LOCATION ND xu mu Opt ion R CE Opt ion R
11. EA Q TY LOCATION x Pm MO Opt ion R CE Opt ion R MODEL MW 11 3000 NO NEW CODE PART NAME SPEC IF CATION ASS Y UPPER COVER 240 M23 MUPC UNO1 01 1 2000 A00 0100 0 UPPER COVER ABS 750 190 291 55 2000 A00 0117 0 UPPER COVER ABS 750 190 291 55 CES 2 2050 MW2 0000 0 DISPLAY COVER M il 2050 MW2 3038 5 DISPLAY COVER M II 3kg SS REAR 3 2050 MW2 3038 4 DISPLAY COVER M II 3kg SS 2050 MW2 3033 6 DISPLAY COVER M II 3kg SS 4 2100 MW2 0000 0 MEMBRANE S W LEXAN MW II 5 1810 MWO 0033 2 SPEC PLATE M 120 1200 1 SS 6 1000 00 0203 0 TRAY SUS 0 51 158 145 0 5t 1050 00 0039 0 PLATFORM AL 2t 156 143 ASS Y L C BRACKET 240 M23 MLCB UNO1 01 1 1030 00 0147 0 L C BRACKET SPC 21 65 24 53 2 1551 50 0500 0 WASHER SPR 5 SUS 3 1530 MSU 0510 0 WRENCH BOLT M5 10 805 ASS Y BODY 240 M21 MBOD UNO 1 01 1 2000 A00 0099 A BODY 5750 190 291 45 2000 00 0118 0 BODY 5750 190x291 45 CE 2 2008 00 0002 0 FOOT 25 6 3 1502 00 0408 0 MACHINE SCREW PH M4 8 4 1265 A00 0001 0 SEALING BOLT M3 0 5 5 BsBn 5 1000 00 0202 0 SEALING PLATE SUS 4241751 6 1590 00 0032 0 BATTERY SPRING A 9 0 6 3 MW 11 7 1590 00 0033 0 BATTERY SPRING B 9 6 6 3 M 11 8 2000 00 0101 0 BATTERY COVER 5750 119 6 75 6 2t 9 1590 00 0034 0 BATTERY SPRING C 9 0 6 3 6 M 11 10 1590 00 0035 0 BATTERY SPRING D 9
12. Fie Fill Buffer 162939 Status Display Flash Programming Successful About Show ASC 6 Click Read and confirm the message Boot Vector Read OK on Status Display At this time confirm Vector FC Status 00 setting If not set them again and click Write If Boot Vector Read OK Message is not shown confirm step 1 2 11 7 Click Load File 8 Click Erase Blocks 9 Click Select All and then ERASE 9 Click Blank Check Program Part and Verify Part 10 Turn off the power and set J40 J41 J60 to Normal Mode 11 Turn on the power and check the operation 12 3 The Schematics and the Diagram A System Block Diagram em mo Load i A D LCD Driver KEY LCD Display 1 ELI DC12V amp Battery 13 BZ40 BUZZER NORMAL WRITTING SW41 CAL NORMAL VD 12 WRITTING KTA1298Y PNP Membrane SW VD SW40 ZERO O R40 10K SW40 TARE 652 SW40 PRT pur m 0 SW40 ON OFF cs TO DISPLAY CIRCUIT BAT CHK OFF AUTO PW P0 2 0 4 P2 4 P2 3 P22 Pa P2 0 89C51RD2 Kr RXD N C TXD XTAL2 INTO P3 2 INT1 P3 3 TO P3 4 T1 P3 5 50 ON CHK BAT CHK LOW TO POWER CIRCUIT
13. JUMPER JUMPER CONNECTOR WAFER EL BACK LIGHT LED LAMP LED HOLDER 240 M21 ERSP UNO 1 01 RS232C PCB ADAPTOR JACK CONNECTOR WAFER CONNECTOR WAFER D SUB CONNECTOR CONNECTOR WIRE 240 M21 EPWP UNO1 01 CONNECTOR WIRE CONNECTOR WIRE GROUNO WIRE GROUNO WIRE L INVERTER PCB ASS Y 240 M25 EELP UNO1 01 E L INVERTER PCB I C REGULATOR TRANSISTOR TRANSISTOR RESISTOR 1 8W RESISTOR 1 8W RESISTOR 1 8W ELECTRIC CONDENSER SPEC IF ICAT ION CL21F 300 JBNC 1UF 63V J BOX 220PF TOK EFM 250A 32 768KHZ 11 0592 MHZ ATS 49 U 9758A TRANSFLECTI VE CR2032 3V PIN TYPE 11902 DJTA 1102 5267 02 5267 03 5267 08 2254 85 FCZ254 8R 2PIN SPIN YDAW200 30 MW 2 SPEL 01 001H W 2 5 R G BL BVT 204 ANODE 10mm 6mm 5mm MN 2 6158 PMW 0400 B MW 11 302 5267 03 5267 04 8095 3P 3P 50mm MW 2 4 160 MW 2 10P 8P 4P 2 10mm CORE 1P 210mm MW 2 1P 40mm MW 2 6180 PMW 0400 0 5 81350 HG 2SA1266 29 1815 3198 MFR 1K 1 F MFR 10K 1 MFR 100K 1 25V 31 UNIT EA EA EA EA EA EA EA EA EA EA EA EA EA EA SET SET EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA Q TY LOCATION clus A lu LX C5 06 7 L1 2 3 4 5 6 7 8 9 10 40 41 8240 Y1 41 Y40 1030 BT1 9141 CN67 CN41 CN61 CON10 JP41 JP40 Opt ion D Option B Opt
14. L C BRACKET 240 M21 MLCB UNO1 01 1 1050 00 0038 0 L C BRACKET AL 1 2t 61 22 36 2 1210 00 0089 0 LOAD SHAFT AL 7 3 19 3 1501 A00 0306 0 MACHINE SCREW FH M3 6 4 1551 MSU 0500 0 WASHER SPR 5 SUS 5 1530 MSU 0510 0 WRENCH BOLT 10 805 ASS Y BODY 240 M21 MBOD UNO1 01 1 2000 A00 0099 A BODY 5750 190 291 45 2000 00 0118 0 BODY 5750 190 291 45 CES 2 2008 A00 0002 0 FOOT 25 6 3 1502 00 0408 0 MACHINE SCREW PH M4 8 4 1265 00 0001 0 SEALING BOLT M3 0 5 5 BsBn 5 1000 00 0202 0 SEALING PLATE SUS 4241751 6 1590 00 0032 0 BATTERY SPRING A 9 0 6 3 M II 4 1590 00 0033 0 BATTERY SPRING B 9 0 6 643 M 11 8 2000 00 0101 0 BATTERY COVER 5750 119 6 75 6 2t 9 1590 00 0034 0 BATTERY SPRING C 09 00 6 3 6 10 1590 A00 0085 0 BATTERY SPRING D 9 0 6 6 MW 11 11 1512 A00 0306 0 TAPPING SCREW PH 2 36 12 2013 A00 0005 A BATTERY HOLDER HDPE 13 1512 00 0310 0 TAPPING SCREW PH 2 3 10 14 1030 A00 0148 0 LIMIT BRACKET SPC 1 51 30 14 15 15 1503 00 0512 0 MACHINE SCREW WPH M5 12 16 1503 MPN 0310 0 MACHINE SCREW WPH M3 10 17 1512 A00 0420 0 TAPPING SCREW PH 2 4 20 18 2022 00 0005 0 W L GAUGE 15 8 RED 33 UNIT EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA Q TY LOCATION BO GIR REV 01 Option
15. in calibration mode 2 Press the SET key the display shows C G NEwG At this time press the MODE key You will see the C G OLdG C G OldG menu you can enter gravity constant of calibration place C G NewG menu you can enter gravity constant of using place 3 Press the SET key the display shows 9 4 To increase the number press the MODE key and to go to the right side of digit press the SET key To go to the left side of digit press the TARE key At last digit press the SET key to save If the value of fifth decimal place is zero you have to enter O 5 If you want to cancel press the ZERO key 6 The value of C G OldG is converted to the value of C G NewG automatically when you perform the span calibration 7 Note that the gravity constant is set to 9 79940 by default 8 Zero Tracking Level C ZtrAC 1 Press the MODE key until the display shows C ZtrAC in calibration mode 2 Press the SET key the display shows previous setting value Press the MODE key to change this value Note that zero tracking level is set to 1 0d by default 3 Press the SET key to save 9 Self Calibration C SELFC 1 Press the MODE key until the display shows C SELFC in calibration mode 2 Press the SET key the display shows previous setting value Press the MODE key to change this value Note that self calibration is set to ON by default If you set it to ON the scale performs self calibration
16. 0 6 6 11 1512 00 0306 0 TAPPING SCREW PH 2 3 6 12 2013 00 0005 BATTERY HOLDER 13 1512 00 0310 0 TAPPING SCREW PH 2 310 14 1030 00 0148 0 LIMIT BRACKET SPC 1 51 30 14 15 15 1503 00 0512 0 MACHINE SCREW WPH 12 16 1503 MPN 0310 0 MACHINE SCREW WPH 3 10 17 1512 00 0420 0 TAPPING SCREW PH 2 4 20 18 2022 A00 0005 0 W L GAUGE 15 8 RED 19 1512 00 0310 0 TAPPING SCREW PH 2 3 10 20 2000 00 0107 LCD BRACKET ABS750 21 1040 A00 0006 0 SHIELD CASE SPTE 0 5t 63 45 13 5 20 1512 00 0412 0 TAPPING SCREW PH 2 4 12 23 1530 50 0515 0 WRENCH BOLT WPH M5 15 24 1503 0304 0 MACHINE SCREW WPH 3 4 25 1030 00 0150 0 L C PLATE SPC 2t 26 1030 00 0152 0 BRACKET SPC 11 35 REV 01 UNIT Q TY LOCATION EA EA 1 CE EA 1 EA 1 Opt ion D EA 1 EA 1 Opt ion R EA 1 EA EA EA EA 1 EA 2 EA 2 EA EA EA EA EA EA EA EA EA EA EA EA 2 EA 1 EA 2 EA 1 EA EA EA 2 EA 1 EA 2 EA EA EA EA EA EA EA 2 n NO 27 28 29 30 DO MAT L NEW CODE 1502 00 0305 0 1512 00 0310 0 1503 00 0310 0 7840 100 0224 0 2631 A00 0023 0 7510 P12 1122 0 7510 P12 1122 G 7510 P12 0220 H 9100 MW2 0100 0 9202 0003 0 9203 0001 0 9310 00 0003 0 9302 00 0003 0 9302 00 0005 9400 00 0046 0 7520 00 0170 0 PART NAME MACHINE SCREW TAPPING SCREW PH
17. 100k R68 47k TO CON 41 52322 IC 202 8 Em 88 1 21 ACTIVE HIGH RS232 GND 3 1 gt CHK LOW Ape R67 TO MAIN CIRCUIT LOW BAT UG1A CONN DSUB 9 P 4 60 MAIN HEB 69 1 v 1 PIW ane 22 5 PINO 2 5V VD ADAPTOR JACK T T ADAPTOR DC12V 300mA Sthndard R69 2 ADAPTOR DC12V 850mA Refharge 49 9k C67 R66 100k An ax gt P D BAT LED P W 11062 8 LED COM 1 1 51 Dry Bat A 1a TO RECHARGECECE gt CHK BAT OFF TO MAIN CIRCUIT BAT OFF 20k 4 4 1 BATT Ni Cd 7 2V 600mAh Ni MH 7 2V 1300mAh 3 BI 4 1 i 5 gt 2 4 2COLOR BL BEG201 OPTION VA VD Vin To EL Power U60 472u 7805 TO252 CN60 _ 330uF 25V Elec aeo 1 3 ON PW 1 400078 t IN OUT ON PW ar L60 C62 S 1298 4 C65 FROM 2 064 882320 peg R60 5 a A00uF 16V ELEC C63 PY Y 10k R61 t OuF 16V elec L61 4724 x To L C Braket NE SHIELD D60 KDS184 ONCHK lt gt TO MAIN POWER GND CIRCUIT DIGITAL GND asl AUTO PW 4 ANALOG GND JP60 JUMPER 2 2222 9 nS CIRCUIT SHIELD GND Ei Title PWRS W MW SeriesPOWER CIRCUIT TO MAIN CIRCUIT Size Document Number 6100 PMW 0400 A 00 Date Monday June 04 2001 Bheet 2 of 5 15
18. D Opt ion R NO NEW CODE 19 1512 A00 0310 0 20 2000 A00 0107 A 21 1040 00 0006 0 22 1512 00 0412 0 23 1530 50 0515 0 24 1503 MPN 0304 0 25 1030 00 0150 0 26 1030 00 0152 0 27 1502 00 0305 0 28 1512 00 0310 0 29 1503 00 0310 0 30 7840 WOO 0224 0 31 2631 00 0023 0 PART NAME TAPPING SCREW PH 2 LCD BRACKET SHIELD CASE TAPPING SCREW PH 2 WRENCH BOLT WPH MACHINE SCREW WPH L C PLATE PCB BRACKET MACHINE SCREW TAPPING SCREW PH 2 MACHINE SCREW CONNECTOR WIRE BATTERY COVER CUSHION ASS Y C T BOX 240 M21 MCTB UNO1 01 1 7510 P12 1122 0 7510 P12 1122 G 7510 P12 0220 H 9100 MW2 0100 0 9202 0003 0 9203 0001 0 9310 00 0003 0 9302 00 0003 0 9302 00 0005 9400 00 0046 0 7520 00 0170 0 ADATOR ADATOR ADATOR C T BOX 1 POLY ETHYLENE PAD POLY ETHYLENE BOX MANUAL POLY BAG TRAY POLY BAG SET POLY BAG SILICAGEL NI MH BATTERY LOAD CELL ASS Y LLA BMW 301G 0000 0N SPEC IF CATION 3 10 ABS750 SPTE 0 51 63 45 13 5 4 12 M5 15 3 4 SPC 2t SPC 11 M3 5 3 10 M3 10 2P 70 170 MW I 80 26 21 EVA 110 220 12V 300mA 110 220 12V 850mA 220 12V 850mA MW 2 268 200 110 345 208 170 250 0 051 200 250 0 05t 270 350 0 04t 109 GP 130AAHC 1 21 MW 2 L C 200 3009 34 UNIT EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA
19. EGULATOR C ORIVER C TIMMER C OP AMP C LINE DRIVEER C SIDAC VARISTOR CHIP TRANS STOR CHIP TRANSISTOR CHIP DIODE SWITCHING D ODE CHIP RE 1 10W CHIP RE 1 10W CHIP 1 10W CHIP RE 1 10W CHIP RE 1 10W CHIP RE 1 10W CHIP RE 1 10W CHIP RE 1 10W CHIP RE 1 10W CHIP RE 1 10W PRECISOIN RESISTOR NDUCTANCE CHIP TANTAL ELECTR C CONDENSER CHIP ELECTRIC CONDENSER CHIP ELECTRIC CONDENSER CHIP ELECTRIC CONDENSER CHIP CONDENSER CHIP CONDENSER CHIP CONDENSER SPECIFICATION 6100 PMW 0400 B MW P89C5 1RD2HBA CAT93C46S SMD CS5522 AP MW 300 KA7805 D PACK UPD 7225600 PCF8563P F4 NJMO62 JRC 17705 ICL232CBE SMD TC 76601CL S INR7D180 KTA1298Y 2N2222AS KDS184 PMLL4148L LP CONT RR1220P 3030 30 kQ 1220 49920 49 9 TR 0805 221 JR 220 0805 102 JR 1K TR 0805 202 JR 0805 472 JR TR 0805 103 JR R 0805 203 JR 0805 473 JR R 0805 104 JR 100K 237773337277 133 FLBY 120K 470 uH 10MCS 106 MB TER 330UF 25V 10uF 16V 100uF 16V 06 3 1uF 50V 04 0 CL21F 103 KBNC CL21F 104 KBNC CL21C 200 JBNC 20PF 30 UNIT EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA EA Q TY LOCATION m m O 8 E OQ OQ IO lus WO lc 32 C40 C41 060 030 C43 U61 1 2
20. IN LCD m 5 CIRCUIT 523505 az 8 5 Bm 5 E38 EL ON OFF 82889758508 8888 Vdo 1030 C33 30K upd7225 195555555 Smee eS eyes eo 9 s 1 39 R32 2 38 818 1 2 3 1K 3 37 517 ST ZERO NET HOLD 1 38 ILO OKIHI Me 315 BAT Vdo Vss 14 PCS MOMICT GN 9 Vdo 9 SCI S a2 313 si 812 cs 9 31 T TOuF 10V Tantal BUSY 871 zit busy T 29 810 Se DWT KG FROM MAIN 3 ARE CIRCUIT 12 28 CPU reset 3 27 58 6F G E D z e 9 t 9 amp amp 8 8 SABICIH 2344494444444 pne REAR DISPLAY OPTION R30 49 9K TO CPU 12PIN j 111113 C35 Title MW Series DISPLAY CIRCUIT 1uF SOV ELEC Document Number lev eie A3 6100 PMW 0400 A 00 ate londay June 04 2001 heet 4 of 5 17 ON Aeldsig G S ON 76 074 170 330uF 25V Elec 100K 330uF 25V IRF9530 gt R72 071 D75 C70 1K gt R74 581 m sem 070 D74 2 072 C1815 A 40 D1N4148 cu T 076 330uF 25V Elec 211 TO RS232C 3 CN61 MAING D1N4148 30mA 4 CN61 MAI
21. N 2323 4 lt 5819 5 CN61 MAIN C1815 5 MAIN mE 15 2 8 CN61 LED P W 2 V 6 BAT a I U CN61 LED COM lt 072 TH1 10 CN61 LED CHG CONTO 470u 41 x sZ 100 16 8 220p FAST 4g PGM3 713 BT70 MAIN PCB INSTALL Ni Cd 7 2V 600mAh AA Ni MH 7 2V 1300mAh AA Title MW2 series CHARGE CIRCUIT Size Document Number lev A3 6140 PMW 0400 0 00 Date Monday June 04 2001 Sheet 5 of 5 18 C Wiring Diagram 1 Without Recharge Option Rear Display PCB 6110 PMW 0400 0 Ground Wire LoadCell Adaptor RS232C PCB 6158 PMW 0400 A Dry Bat 1 5V x 6 AA size Main PCB 6100 0400 19 2 With Recharge Option Rear Display PCB 6110 PMW 0400 0 Charge PCB 6140 PMW 0400 0 10P Ground Wire LoadCell Adaptor RS232C PCB 6158 PMW 0400 A Recharge Bat 1 2V x 6 AA size Main PCB NiMH NiCd 6100 PMW 0400 A 20 D Parts Location 1 Main PCB Part L ocation
22. REV 00 2002 MAY MW II Series Service Manual CAS CORPORATION CONTENTS Preface A Introductions B Precautions C Specifications D Sealing Method Calibration amp program code download A General calibration B Calibration block diagram C How to confirm the setting value D Program code download The schematics and the diagram A System Block Diagram B Circuit Diagram C Wiring Diagram D Parts locations E Exploded View The error messages A Error message B Troubleshooting Serial Interface A RS232C connection Parts List A Electronic Parts List B Mechanical Parts List a A UQ 10 11 13 14 18 21 25 26 27 28 30 33 1 PREFACE A Introductions Thank you for purchasing our CAS MW II Series These series has been designed with CAS reliability under rigid quality control and with outstanding performance Your specialty departments can enjoy these high quality reliable CAS products We believe that your needs will be satisfied and you will have proper reliability This manual will help you with proper operation and the MW II series Please keep it handy for future reference CD Precautions Make sure that you plug your scale into the proper power outlet Place the scale on a flat and stable surface Plug into a power outlet one hour before operations Keep the scale away from strong EMI noises may cause incorrect weight readings
23. T7 4 I 323 2 6 10 WEIGHT 8115 sa co 1 as os ST stability stable or w unstable SG sign negative or positive SP 60 06 weight Overload Invalid W 128 35 ST SG Go 62 G4 G G6 iE EE Ea DS 5 UNIT 1 3 u1 Unit weight 9 ct oz Ib tl dwt mom gn pcs UO U1 U2 i 29 6 Parts list A ELECTRONIC PARTS NO i vob EE mus mk umb mms 028 O N O Q O mo oon C 27 28 29 30 81 32 33 34 35 36 MAT L NEW CODE MAIN PCB ASS Y 6100 PMW 0400 8 6200 150 8951 6205 150 0346 6214 100 5522 0 6220 150 7805 0 6224 100 7225 0 6228 100 8563 0 6240 150 0062 0 6240 150 0177 0 6240 150 0232 0 6242 150 7660 0 6271 100 7180 0 6281 100 1298 0 6281 100 2222 0 6294 1 0184 0 6294 SW 4148 A 6527 103 0300 0 6527 103 0499 0 6527 1 J0 2200 0 6527 143 0010 0 6527 143 0020 0 6527 143 0047 0 6527 143 0100 0 6527 143 0200 0 6527 143 0470 0 6527 143 1000 0 6540 LB3 1200 0 6670 100 0470 0 6702 0106 0 6704 025 0330 0 6706 16 0010 0 6706 16 0100 0 6706 50 0001 0 6712 CHP 0103 0 6712 CHP 0104 0 67 12 CHP 0200 0 PART NAME 240 M21 EMAP UNO 1 01 MAIN PCB CPU C EEP ROM A D CONVERTER C R
24. every 5 minutes 3 Press the SET key to save 10 Version C vEr 1 Press the MODE key until the display shows C vEr in calibration mode 2 Press the SET key the display shows the version of the scale For example V2 00 3 Press the MODE key the display shows country code For example Std Standard 4 To exit this mode press the ZERO key 11 Reset Default Setting Calibration Data C rESEt 1 Press the MODE key until the display shows C rESEt in calibration mode 2 Press the SET key the display shows No 3 Press the MODE key you will see yES and press the SET key to reset All settings are changed to default but zero and span values are remained If you want to set these values to 0 press the CAL switch and SET key when the display shows yES on step 3 B Calibration Block Diagram MW II Calibration M ode 5 SET key Z ZERO key T TARE key M MODE key PRINT key Y S S p C SPAN UNLOAd LOAd A z 2 5 M Y 2 7 300g lt zy 5 Y DO IT y M 200g My Y 2000g Y 5 Internal Value lt y 2 5 AS
25. hows C OPtbL in calibration mode 2 Press the SET key the display shows OFF 3 You can change this setting by pressing MODE key Press the SET key to save If you want to cancel press the ZERO key ON It is available to use backlight OFF It is not available to use backlight Note that backlight is set to OFF by default 5 Zero Range C ZPASS This is an allowable range from calibrated zero that the scale goes to zero from at start up 1 Press the MODE key until the display shows C ZPASS in calibration mode 2 Press the SET key the display shows 10 PEr or 2 PEr 3 You can change this setting by pressing MODE key 10 PEr Zero range is 10 of maximum capacity 2 Zero range is 2 of maximum capacity Note that zero range is set to 10 PEr by default 4 Press the SET key to save it 6 Unit C Unit 1 Press the MODE key until the display shows C Unit in calibration mode 2 Press the SET key the display shows C U grAm 3 Press the SET key the display shows OFF ON 4 You can change this setting by pressing MODE key Press the SET key to save ON You can use this unit OFF You cannot use this unit 5 When the display shows C U grAm press the MODE key to set other units Press the SET key to save Note that 9 ct pcs and are set to ON by default 7 Gravity Constant C Grvty 1 Press the MODE key until the display shows C Grvty
26. ion R Opt ion R CN63 CN65 CN66 CN64 Opt ion R Option B 1031 030 031 R61 R36 R37 38 C37 i o yi co 2228 ER 23 QO C O WOM nm C ar O N MAT L NEW CODE 67 10 CAP 0 104 0 7244 000 0005 0 7810 000 9295 0 RECHARGE PCB ASS Y 6140 PMW 0400 0 6232 100 0713 0 6273 100 9530 0 6280 100 1266 0 6280 100 1815 0 6280 100 1959 0 6291 1 0 5819 0 6294 15 4148 0 6505 80 0500 0 6512 0 0006 6 6515 6J3 0010 0 6515 CJ3 0020 0 6515 CJ3 1000 0 6670 100 0220 0 6704 616 0100 0 6704 025 0330 0 6704 025 0470 0 6710 CAP 0104 0 6710 CAP P221 0 6720 0104 7809 CAL 0010 0 PART NAME CERAMIC CONOENSER E L INVERTER CONNECTOR 240 M25 ERCP UNO 1 01 RECHARGE PCB MOSFET TRANSISTOR TRANSISTOR TRANSISTOR POWER DIODE SWI TCHING DIODE RESISTOR 1 4W RESISTOR 2W RESISTOR 1 4W RESISTOR 1 4W RESISTOR 1 4W I NDUCTANCE ELECTRIC CONDENSER ELECTRIC CONDENSER ELECTRIC CONDENSER CERAM I C CONDENSER CERAMIC CONOENSER POLYESTER CONDENSER CONNECTOR WAFER SPEC IFICATION 0 1UF 25V 50V SPEL 1 5C NC BI CI 2001B FW0254 30 6140 PMW 0400 0 MAX 13CPE RF9530 25 1266 25 1815 3198 2561959 1N5819 1N4148P MFR 509 0 1 CFR 0 669 5 CFR 1K x 5 CFR 2K 59 CFR 100K 5 220uH 100uF 16V 330UF 25V 470uF 25V 0 1UF 25V 50V 220PF 50V 0 1UF 63V J BOX LAL 0640 10 REAR DISPLAY
27. lFact 91383 300000 Span Zero 100000 LSpanDi fO Multi Calibration Data LSpanDi f 1 Multi Calibration Data FactGapO Multi Calibration Data FactGapl Multi Calibration Data FactGap2 Multi Calibration Data Capa Capaci ty 0 3 Ini ZeroV Initial Zero Buffer Z Buf Rezero Buffer T Buf Buffer TO Cnt 70m TimerO T1_Cnt 70m Timer 1 Gravi tyO OLD Gravity Constant Reference Gravi tyN NEW Gravity Constant Hand BufO0 AD Buffer Hand Buf 1 Hand Buf8 Hand Buf9 Keys for debugging mode Keys Descriptions Ctrl R Report Ctrl E EEPROM Erase X EEPROM Read A ADC CS5522 Initializing D Display Buffer Read 10 D Program Code Download 1 Set J40 J41 J60 of main PCB to download mode as below After setting the J40 J41 and then set the J60 J40 J41 J60 Mode 1 2 3 a2 1 2 5V 12V Normal Code Download m m 2 Connect RS232c cable to PC 3 Turn on the power 4 Type winisp exe and press the ENTER key 5 Set the parameters as below P89C51RD2 Port Com1 Com2 Osc MHz 11 0592 PHILIPS ISP PHILIPS System Data Buffer 64K Programmer Ver 2 24 Misc Load File Vector Parameters Chip PescstRD2 Erase Blocks S tatus Blank Check Port com m itv Range Security ace LABEM Osc MHz 110552 wite Loaded
28. lower than 0 005g when k set sample in counting mode and percent Lack Unit Weight mode EEPROM Initializing 26 B Troubleshooting 1 CAL Er 1 Go to calibration mode CAL Switch is located in the battery cover at the bottom of the scale While pressing the switch turn on the power then you will go to calibration mode Span calibrate the scale on C SPAN menu Refer to Span Calibration on page 6 Press the MODE key twice the display shows C trim When the display shows C trim press the CAL switch and SET key The display shows AD value this value is flickering because it is not filtered If it is not flickering it means a failure of AD part Make sure that there is nothing on the platter and press the TARE key Place the weight of maximum capacity on the platter If the value is lower than 200 000 check the output of load cell This value should be greater than 200 000 Turn the power off and on You will go to normal mode If the display shows CAL Er check EEPROM 2 Init If the display shows Init press the SET key If you press another key EEPROM is not initialized and go to next step CAL Er is displayed in 10 seconds Span calibrate the scale again Turn the power off and on If the display shows still Init check EEPROM 27 5 Serial Interface A RS232C connector 1 Scale PC or Printer Type I 2 Rx 3 Tx PC o
29. r Printer TYPE I D Sub D Sub Connector Connector 9 pin 9 pin 2 Scale Printer Type II 2 Tx 3 Rx Scale Printer TYPE I D Sub D Sub Connector Connector 9 pin 9 pin 28 B Data Transmission Frame PRNCON 3 DATE 15 SPO TIME S SP 1 WEIGHTO 0 SPC UNIT 3 enc Total Length 24 44 bytes ITEM Size bytes DESCRIPTIONS CR 1 Carriage Return 0x0D LF 1 Line Feed SP 1 Space 0x20 0 3 pn PRNCON Ci C2 f you set P conch to On in Setup menu 3 bytes is transmitted f you select OFF transmission is not performed C1 22 C3 Ox1B 0x21 0x30 14 15 IE Eagan gam DATE uF po 02 ps 04 05 07 08 09 pio Date format is different depends on the setting of P PdAtE in Setup menu f you select OFF transmission is not performed 2001 12 01 14 bytes CR LF DO D1 D2 D3 D4 D5 D6 D7 D8 D9 CR LF CR LF 2 Qo E PX 2 0 CR LF Dec 01 2001 15 bytes CR LF DO D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 CR LF CRI LF D 0 fo EN i Qo 0 n CR LF 8 TIME 12 15 ve 7 n the transmission 55 14 24 36 sec TO 11 T2 T3 T4 T5 T6
30. u want to cancel press the ZERO key 5 Note that the capacity is set to 300 g by default 3 Trimming Multi Point Calibration C triM 1 Press the MODE key until the display shows C triM menu in the calibration mode 2 Press the SET key you will see the internal value 3 If the internal value is not zero press the TARE key to set it to zero 4 Place a weight M1 on the platter and adjust the value to AD1 by pressing the PRINT or MODE key Refer to Table 1 PRINT key is used to increase the value and MODE key is used to decrease the value Table 1 41700 199 19 90000 200024800055 Ges 7429247505 2009 2009 5 If the value is within AD1 the display shows ZERO but if the value is out of this range it is impossible to adjust this value 6 Place a weight M2 on the platter and adjust the value to AD2 by pressing the PRINT or MODE key Refer to Table 1 7 If the value is within AD2 the display shows NET 8 Place a weight on the platter and adjust the value to AD3 by pressing the PRINT or MODE key Refer to Table 1 9 If the value is within ADS the display shows Battery 10 Press the SET key to save it If you want to cancel press the ZERO key 4 Option Backlight C OPtbL 1 Press the MODE key until the display s
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