JCL service manual.pdf - Vetek Scales

Contents1. Assembly Drawing1-1 Explosive view…………………………………………………………………… 11-2 Part list…………………………………………………………………………… 12. Electronic Construction2-1 Block diagram…………………………………………………………………… 22-2 PCB board wiring……………………………………………………………...... 32-3 Power circuit diagram…………………………………………………………… 43. RS-232 Communication3-1 RS-232 connector………………………………………………………………. 53-2 RS-232 circuit diagram……………………………………………………....... 53-3 Single option…………………………………………………………………….. 63-4 Two options……………………………………………………………………... 93-5 Time setting……………………………………………………………………… 103-6 RS-232 output format…………………………………………………………..4. Adjustments and Settings4-1 Model setting…………………………………………………………………...4-2 Single point calibration………………………………………………………...4-3 Linear calibration……………………………………………………………….4-4 Function setting ………………………………………………………………..4-5 Scale initialization………………………………………………………………4-6 Set division……………………………………………………………………...4-7 Offset value display and key test……………………………………………..4-8 Unit switch operation…………………………………………………………..5. Trouble Shootings5-1 Primary checks………………………………………………………………...5-2 Problems and solutions………………………………………………………..5-3 Error message………………………………………………………………….6. Parts Replacement6-1 Main board replacement …………………………………………………….6-2 Loadcell replacement…………………………………………………………6-3 Rechargeable battery replacement ………………………………………...6-4 RS-232 replacement………………………………………………………….6-5 Keypad replacement………………………………………………………….6-6 LCD replacement………………………………………………………………7. Applicable Version and Software…………………………………………… 271112121213151515151617192022242425260 JCL Service Manual

1.Assembly Drawing1.1 Explosive view1-2 List of partsNo. Part Name1 Xm JCL front panel2 Xm Keypad3 Xm Leveler4 Xm Transformer5 Xm Switch6 Xm Two-stage switch7 Xm JCL main board8 Xm Bottom cover9 Xm Lower supportQuantity111111111Part No.JCL-1JCL-2JCL-3JPL-4JCL-5JPL-6JCL-7JCL-8JCL-9Material No.20-1925-000021-0506-000002-0108-0003xm(14mm)61-0003-040060-0000-0000xm60-0503-0001xm80-0124-000002-0000-602010-0425-01001 JCL Service Manual

JADEVER SCALE CO., LTD10 Xm Shipping protection screw 1 JPL-10 31-0404-0000xm11 Xm Leveling foot 4 JCL-11 01-0100-003012 Xm RS232 board 1 JCL-12 80-0900-2200xm13-1 Xm ZEMIC load cell-3k 1 JCL-13 51-0400-0400xm13-2 Xm ZEMIC load cell-5k13-3 Xm ZEMIC load cell-10k13-4 Xm ZEMIC load cell-20k13-5 Xm ZEMIC load cell-40k14 Xm Rechargeable battery15 Xm Battery cover16 Xm Rear display17 Xm Upper support18 Xm Upper cover19 Xm Rear panel20 Xm Plastic weighing pan21 Xm Stainless Steel weighing pan111111111111JCL-13JCL-13JCL-13JCL-13JCL-14JCL-15JPL-16JCL-17JCL-18JCL-19JCL-20JCL-2151-0410-000051-0410-001051-0410-002051-0410-004061-0201-0098xm02-0000-603080-0126-001010-0425-000002-0000-600020-1925-001002-0000-604012-0000-12002. Electronic Structure2 – 1 System block2 JCL Service Manual

JADEVER SCALE CO., LTD2 – 2 PCB board wiring3 JCL Service Manual

JADEVER SCALE CO., LTD2-3 Power circuit diagramMCB1MCB2+5VACN1AVS1C110u,TE+ 1AVS2MCB4E- 2G 3S+ 4FB1B3MCMCB5MCB6R2100,A,T+5VDBATR3410k,CA7333 Q10 R35+5VDCP170.1u,GR38 R39 R40S- 5LOAD-CELLR41 R42 R43AVS3R1 AV1M,A,TMCBS4 70.1u,GCP50.1u,G0.1u,GCP60.1u,GCP8MCB8R3 100,A,T10k,CR3610k,CR44 R45R4610K,C10K,C10K,C1N0K,C10K,C10K,C10K,C10K,C10K,C8KIN1KIN2KIN3KIN4KIN5C987654321CP7U1 ANI1+6 AIN2+NC202 AIN1- AIN2-NC 193C1VREF+ 18+5VAR6237K,A,T+5VDC2210u,ELR32LCD-CSLCD-WR7 P1.58 P1.6LCD-DATA 9 P1.7RXDP3TXDP3.210RST11 P3.0 / (RXD)12 P4.313 P3.1 / (TXD)14 P3.2 / (not INT0)15 P3.3 / (not INT1)16 P3.4/(T0)U7AT89C51/52P0.4 39+5VDR63 R62 R6138 CN10P0.5P0.6 3721P0.7 36not EA / VPP 35P4.1 34+5VD15GALE / not PROG3313BPSEN 32 14 AP2.7 31P2.6 3017 P3.5/(T1) P2.5CP18R31R30R229922k,0.1u,GCR25+5VD+5VDU9B3RTCY3 9Y2 10Y1 11Y0 12CP160.1u,GR52JWEL+5VD3 Q92SC1815R27220Ω,CC41000pC5 C6+5VACP11C10104,G1u,T1000p 1000p 8A1C720pY2R41M,CC820p4C2 VREF- 17 C23 R5 CP155VA+DGND 16+5VD 1u,T 104,G237K,A,T6VA-7A09 OSC2VD+ 15CS 14 ADCS C9SDI 13SDO 1210 OSC1 SCLK 115530-5VDC36ADSDIADSDOSCLKU11CP101u,T 104,GC3524C02A U8CW12Y1CN6C20 11.059MHz C2120p R2820p1M,C3 Q8CN712A733EH-BUZZER470u 5 VOUT CAP- 4R5560R,C 6LVGND 347DSCCAP+ 2330k,C+5VD8V+R53 Q117620k,C 2SC181560BZD81N4148CN9ON/OFFNC 1220u,ELTP1 TP2TP3CALCN21AVS5-5VDFUSE2 Q1 3 R7D313U5R84 2 + C112/1w,CR9R551.5k,AD2 1N4004CN3CP12R64AVS7 47k,CR6647K,CD43 2Q6 2SB857R22BATU3LM29301INOUT 3+5VD2EH-AdpatorAVS62 J1 1 4.7k,C 1k,CR5610k,A12Battery+ 0.1u,GC12470u,ELD3 1N4148 1N41483 Q52SC1815C2104P330k,CR232.2k,CC15220u,ELC16470u,ELR6510k,CU15AR20U15BU15CU9AY3 71GY2 63 BY1 52 A Y0 4U1C13LM723 NC 14 470P1 2 3 4 5 61M,CR21330k,C3 Q72SC1815R24 10k,C1OutVdd 2U481350+5VA1NC2 CURLIM COMP 1374LS139 D5 D6 D7 +5VDU9.8CN11123 CURSEN V+ 12Vc 114IN-Vout 105IN+ Vz 9U9.16 +5VD OKHI LOR51 R49 R50LCD-CSLCD-WRLCD-DATALED34566 Nref7V-NC 8 R17 C18C19470u,EL1k,C 1k,C 1k,CR121k,CR141K,CR154.7k,C4.7k,CR181k,C220u,EL+5VDD1LED-RLR16100k,CQ4A733 3CN44321RS232+5VDTXDRXDR13 Q2 3 Q3 31k,C 2SC18152SC1815R1910k,CTitleSizeA2NumberJCL-JPLV1.1.schRevisionDate: 27-Feb-2009 Sheet of

12876512346512\L-SCALE.ddb Drawn By: 档File: E:\jadever\LX 料 资4 JCL Service Manual100k,CR261 21 21 2G1M3F2P3.2P2.041 23P1.4P1.3P1.2P1.1P1.0P4.2VCC 442S112341321LA0A1A2GN DVC CWPSC LSD A18P 3. 6 / ( not W R )19P 3. 7 / ( not R D )20XT AL21XT AL22GNDP223P4 .0P2 .0 24 P2 .025 P2 .126P2 .227P2 .328P2 .44. 7k. CP0.0 43P0.142P0.241P0.340AD CSC LKAD SD O1AD S DI212112310 K,C10 K ,C4.7k.C4.7k.C4.7k.CLE DKO UTKO UTKO UTKO UT10 K ,C1 2Vs sGN D47 0u/25v,E2 1P32121

JADEVER SCALE CO., LTD3. RS-232 communication3-1 RS-232 connector3-2 RS-232 Circuit Diagram5 JCL Service Manual

JADEVER SCALE CO., LTD3-3 Single optionScale to printerScale to BP545D(TDP) printerScale to SH-24(TP)printerUniversal 25 pin (male) to 9 pin (male) RS-232connecting cable.Scale to ZEBRA printerUniversal 25 pin (male) to 25 pin (male) RS-232connecting cable.Scale to EZ printerUniversal 25 pin(male) to 9 pin(male) RS-232 Universal 25 pin(male) to 9 pin(male) RS232connecting cable.connecting cable.Corresponding settings(refer to 4-4)Scale to PC1. Get receiving program ready on your computer.2. Please set the print mode as “Prt.Co” (continuous print, the scale will output the data tothe PC continuously).Commonly used 9 female ~25male RS232 connecting wire.Note: The hollow dots represent male connectors and the black dots represent femaleconnector.Corresponding settings(refer to 4-4)6 JCL Service Manual

JADEVER SCALE CO., LTDScale to light towerThe pin of light towerPicturesThe light tower should be connected to the25-pin (male) socket.Light tower to scalePictureThat is commonly used 25pin port (male) ~ 25 pinport (female) RS232 connecting wire.Note: The hollow dots represent the maleconnectors and the black dots, female connectors.Note: after the light tower connected to scale properly, the corresponding lamp will lightup to indicate the result of quantity check.Red lamp on: The quantity of weighing articles on the weighing pan exceeds the upper limit.Green lamp on: The quantity of weighing articles on the weighing pan is between upper andlower limits.Orange lamp on: The quantity of weighing articles on the weighing pan is less than lower limitand the weight of the articles is more than 20 divisions.7 JCL Service Manual

JADEVER SCALE CO., LTDExample of single optionOptionExternal DevicePrint out formatRS232+RTC+RelayAP1+→TDPAP2RS232+RTC+Relay+→SH-24(TP)AP3RS232+RTC+Relay+→AP4RS232+RTC+RelayZEBRA+→Applicable to the quality control ofthe factory product quantity orweight and that of the totalproduction line.8 JCL Service Manual

JADEVER SCALE CO., LTDLED Light TowerRS232+RTC+Relay+→EZRS232+RTC+Relay3-4 Two optionsScale to PC and light towerWire connection+ →PicturesPC2008-06-2814:47:25G.W.:+ 4.000kgU.W.: 20.000g/pcsTotal: 200pcsNote: The hollow dots represent themale connectors and the black dotsare for female connectors.9 JCL Service Manual

JADEVER SCALE CO., LTDScale to ZEBRA/GODEX(EZ)/BP545D(TDP)printer and light towerWire connectionPicturesNote: The hollow dots represent themale connectors and the blackdots are for female connectors.Scale to SH-24(TP)printer and light towerWire connectionPicturesNote: The hollow dots representthe male connectors and theblack dots are for femaleconnectors.3-5 Time setting1) The RTC function should be switch on before setting is allowed. (Refer to 4-4)2 When the scale is in weighing mode, long press key MR for 2-3 second and three windowswill display.2) Press key M+ to select the position to be altered and the position under alteration will10 JCL Service Manual

JADEVER SCALE CO., LTDflicker.3) Press 0 ~ 9 to alter the Year/Month/Date/Hour/Minute.4) Press key MR to save the settings.5) Press key PRINT to return to the weighing mode.3-6 RS-232 output formatBaud Rate : 2400、4800、9600Data Bit : 8Parity : N ( None )Stop Bit : 1Code: ASCIIBit Format :StartBitLSBData Format:Kg0 1 2 3 4 5 6MSB7 8ParityStopBitG/N . W . :weightk g CR LFU . W . :weightg / p c s CR LF:UnitT o t a lExample:G.W. :+ 2.2352 kgU.W. :+ 0.5352 g/pcsTotal pcslb:G/N . W . :+/-4176pcsp c s CR LFl b CR LFweightU . W . :l b / p c s CR LFweightT o t a lp c s CR LF+/-Example:G.W. :+ 2.2352 lbU.W. :+ 0.5352 lb/pcsTotalG = GROSS N = NET:Unit:pcs11 JCL Service Manual4pcs

JADEVER SCALE CO., LTD4. Adjustments and Settings4-1 Model setting1) Turn on the power while pressing key SMPL.2) Key in 1130 with the numeric keys.3) Again press key SMPL to confirm.4) Press numeric key 1 to set maximum capacity. Available options are:3/6/15/30(kg).5) Press numeric key 2 to select version. Available options are: TW/CN.6) Press key SMPL, then press key ZERO to go back to weighing mode.4-2 Single Point Calibration1) Press and hold key SMPL while powering on the scale.2) Input 11 with numeric keys.3) Again press key SMPL to enter the zero point calibration modes.4) Wait till “ ” flashes, press numeric key 1 to select calibration weight .Options are1/3 of full load, 2/3 of full load and full load. E.g., options for JCL-15K are 5, 10 and 15(kg).Putthe corresponding weights on the weighing pan.5) Press key · to confirm.6) The calibration procedure is completed with a “ ” flashing on the weight screen. Now,remove all the weights.7) Press key SMPL to save, and then press key ZERO to return to the weighing mode.4-3 Linear Calibration1) Press and hold key TARE while powering on the scale.2) Again press key TARE to enter zero point calibration mode, with “weight screen.” flashing on the12 JCL ServiceManual

JADEVER SCALE CO., LTD3) Wait till “” appears and flashes on weight window, put weights of 1/3 of full load on(e.g. 15k model, 1/3 of full load is 5kg.)4) Wait till “ ” appears and flashes on total weight screen, put weights of 2/3 of full loadon (for 15k model, 2/3 of full load is 10kg)5) Wait till “ ” appears and flashes on total weight screen, put weights of full load on(for 15k model, full load is 15kg)6) The calibration Procedure is finished with a symbol of “” flashing, and then takeaway the weights.7) Press key TARE to return to weighing mode.4-4 Function Setting1) Turn on the power while pressing key ZERO and setting mode starts.Note: The following Steps (2) ~ (11) do not require to operate in order.2) Press numeric key 0 to shift backlight modes. Options are On, OFF and OnOFF.=Auto-on with items greater than 9 divisions placed on the pan.= No backlight= Backlight3) Press numeric key 2 to set the level in which the stable indication turns on (filtering).The lower the setting, the faster stabilization time.4) Press numeric key 3 to set the period of inactivity before the scale automatically turnsoff.Options are OFF(Non power-off)、 5、10、30 and 60 (minutes).5) Press numeric key 4 to set the range in which the zero indication turns on .Options ared0, d1, d2, d3, d4 and d5. (d= scale division)6) Press numeric key 5 to set serial transmission rates. Options are 9600, 4800 and 2400.If the selected external device is printer, please set the transmission rates as 9600.13 JCL Service Manual

JADEVER SCALE CO., LTD7) Press numeric key 7 to set buzz sounds. Options are Un,In,no,Lo and nbEEP.=There will be a warning sound when the quantity of the articles exceeds upper limit.=There will be a warning sound when the quantity of the articles is between the upper andlower limit (including the upper and lower limits).= There will be a warning sound when the quantity of the material exceeds the upper andlower limits, and the weight of the material is more than 20 divisions.= There will be a warning sound when the quantity of material is less than the preset lowerlimit and the weight of the material is more than 20 divisions.= No sound alarm.8) Press numeric key 8 to select whether to save previously quantity checking values.. = Previously set quantity checking values are not retained when the unit is turned on.. = Previously set quantity checking values are retained when the unit is turned on.9) Press numeric key 9 to shift print modes. Options are Prt.Pr, Prt.Co and Prt.St. If Prt.Cois chosen as the print mode, PC will be automatically selected as the external devices. Ifprinteris selected as the external device, please set the print modes as Prt.Pr or Prt.St.. = manual print. = continuous print. = Stable printing (the weight of weighted articles should be more than 9 divisions.Weighted articles should be removed and the scale goes back to zero before print out the nextrecord.)10) Press key MC/CK to select external devices. Options are AH,TDP, ZEBRA,TP,SH,EZ andPC.11) Press MR to switch On or OFF RTC function.12) When setting is completed, press key ZERO to save and return to weighing mode.14 JCL Service Manual

JADEVER SCALE CO., LTD4-5 Scale initializations1.Turn on the power while pressing key TARE.2. Press numeric key 2 .3. Press key MC/CK.4. Initialization procedure ends up with a symbol of “OK”.5. Press key TARE, then press key ZERO to go back to weighing mode.4-6 Set Division1. Turn on the power while pressing key SMPL.2. Key in 1123 with the numeric keys.3. Press key SMPL, the current division is displayed.4. Press numeric key 1 to set the division to 0.1g or 0.2g. (the available options might bedifferent for different models.5. Press key SMPL press key ZERO to go back to weighing mode.4-7 Offset value display and key test1) Turn on the power while pressing key ZERO.2) Again press key ZERO to check the offset value and start key testing.3) After key testing is done, press key ZERO to exit.4-8 Unit switch operation1) Press key SMPL while powering on the scale.2) Key in 1132 via numeric keys.3) Again press key SMPL to enter unit Selection mode. Numeric key 1 is to toggle between g(kg) and Lb units.4) Press key SMPL to save, and then press key ZERO to return to the weighing mode.15 JCL Service Manual

JADEVER SCALE CO., LTD5. Trouble shootings5-1 Preliminary checksIs the bubble of the level indicator at the center?Is the battery electricity capacity ok?Is power cord connected both with the scale and with the outlet properly?Is the weighing pan the right one?Is there anything under the weighing pan?Is the scale at a flat and steady base?Are there any vibrating, rotating, and/or reciprocating equipment around?16 JCL Service Manual

JADEVER SCALE CO., LTD5-2 Problems and solutionsProblemPower onfailurePossible CauseLead-acid batterydefectiveCharging transformerproblemCPU / Crystal11.0592M (oscillatingcircuit) faultLCD or related LCDcircuit faultBasic Inspection andtroubleshootingRemove battery and power on by usingcharging transformer to see if the failure is dueto battery defect.Please try a normal charging transformer tosee if the scale can be powered on.Replacement is needed.After confirming that there is no broken boardline or short circuit of connection between LCDand other conducting objects, please replaceLCD.ChargingFailure orService LifeShortenedPower circuit faultMalfunction in ON/OFFswitchLead-acid batterydefectiveCharging transformerproblemPlease check the working voltage of CPU (pin44)/LM2930/TIP32C/Q7/4069(pin3/6/14)/Q5,then replace the one which working voltage isabnormal.Replace the ON/OFF switchRemove battery and power on by usingcharging transformer to see if the failure is dueto battery defect.Please try a normal charging transformer tosee if the scale can be powered on.Components or powercircuit defective1. Fuse burn down, replacement is required.2. Check D2/ Q1(D313)/U5Q2/Q3/Q4,then replace the defectivecomponents.3. Charge lamp defective, replacement isrequired.4. The polarity or the charging lamp isreversed.17 JCL Service Manual

JADEVER SCALE CO., LTDPoor LCDDisplayIncorrectweighingbuzzerdoes not workKeypaddysfunctionMemorydysfunctionmessy codeoccur in theprint outcopiesLCD defectiveComponent or partdefectiveIC(PT6554) related circuitfaultComponentLM2931,AD5530 or4.9152M is defectiveLoad cell MalfunctionQ11 or Q8 defectiveBUZZER defective orbuzzer circuit faultKeypad or keypad circuitfaultCPU / CPU programeffectiveComponent 74LS139defectiveComponent24C02,R29,R30,R31 orCP18 defectiveWrong settingRS-232 board defectiveBad connection betweenRS-232 board and mainboardAfter confirming that there is no broken boardline or short circuit of connection betweenLCD and other conduction objects, pleasedirectly replace LCD.Please check CP19/LM2930 , then replacethe defective one.Please check IC (PT6554) related circuitfault, replacement is needed for the defectiveone.Replacement is requiredReplacement is requiredPlease check / replace Q11 or Q8Replacement is requiredCheck/replace keypad or keypad circuit.Check/replace CPUCheck / replace component 74LS139Please check 24C02,R29,R30,R31andCP18,then replace the defective componentsPlease check /reset external device/ baudrate/print mode(refer to 3-3)Please check/replace RS-232 board.Please check/replace the wire connectionDefective in externaldeviceMaintenance/replacement is need.18 JCL Service Manual

JADEVER SCALE CO., LTDLCD backlight no LCD backlight defective Replacement is requiredfunctionComponent defectivePlease check/ replace Q9,CPU,P71,R72,R73,R74,R75,R76Battery symbol Insufficient cell voltage Please recharge the batteryRechargeable failure If the voltage of the battery is lower than 5.7Vand the battery indication lamp is still ingreen color, please immediately replace therechargeable battery.Component defectivePlease check/replace R34,R35,R36,Q10Bad connectionLM29305-3 Error MessageError message Problemsbetween R34 andInitial zero point exceeds +Please repair the wire connection betweenthe two components.Solutions1. To check whether there are other alien/-30% (take 30% as referencebasis)articles on the scale pan, remove thosearticles.2. LOAD CELL failure, which requires to bechanged or to contact our Service.Higher or lower than A/Dresolution range.1. Check whether it is A/D failure, if yes, pleasereplace AD.2. LOAD CELL failure, replacement is requiredor contacts our Service.19 JCL Service Manual

JADEVER SCALE CO., LTDEEPROM Chksum failureRe-sold EEPROM or contact ourService.The weighed articles are overload. Do not load the item exceeds themaximum tolerance.The accumulated number ofNo more accumulation.weighments, total count or weightexceeds display range.The quantity of weighed articles----------------------------------------exceeds display range when thescale is under unit weight enteringor sampling mode.Low battery6. Parts replacementRecharge the battery. The scalecan be used while it is recharging.Please switch off the scale before part replacement.6-1 Main board replacement1. Remove the weighing pan. 2. Turn the scale upside down, loosen andremove the 4 fixing screws.20 JCL Service Manual

JADEVER SCALE CO., LTD3.Open the upper housing.4. Remove the keypad from board.5. Turn the main board upside down with 6. Dismount every connector from the board.care.7. Prepare a new main board. 8. First solder load cell wire theninstall every connector to the new board. (referto 6-2)8. Place the main board proper 9. Please insert the keypad.then remove the protection cover fromthe LCD display.10. Install the upper cover, turn the 11. Place the stainless steel weighingscale upside down, then tighten 4 pan properly on the scale.fixing screws.Note:1) ZEMIC and MAVIN Load cell:“E+”in red, “E-”in black21 JCL Service Manual

JADEVER SCALE CO., LTD“S+”in green ,and “S-”in while)2) Tedea load cell: “E+”in green, “E-”in black“S+”in red ,and “S-”in while.After the replacement is done:1. Switch on the scale to check.2. Refer to 4-1(model setting), 4-4(Function setting) 4-6(Division setting), to do the propersettings.3. To conduct calibration (refer to section 4-2,4-3)6-2 Loadcell Replacement1.Remove the upper housing (referto 5-1, step 1-4)..2. Loosen and remove the 4 fixingscrews to remove the load cell support module.3. Lift the whole load cell support 4. Disconnect the load cell wireModule out of the scale.from main board.5. Loosen and remove the 2 hexagonal 6. Remove the upper support.socket screws from the upper support.22 JCL Service Manual

JADEVER SCALE CO., LTD7. Loosen and remove the 2 Hexagonal 8.Prepare and install a new load cell reversibly.socket screws from Lower support.9.First solder load cell wire, then installevery connector to the new board.Note:10.Please insert the keypad.1) ZEMIC and MAVIN Load cell:“E+”in red, “E-”in black“S+”in green ,and “S-”in while)2) Tedea load cell: “E+”in green, “E-”in black“S+”in red ,and “S-”in while11.Scale grindingA. First switch on the scale and conduct a calibration.B. Use weights of 1/3 full load to test the 4 corners and record the shown values.C. Use a file to grind the “Scale grinding point” corresponding to the lowest display value out ofthe four corners.(when grinding for the first time, please test force by means of trial grindingwith small strength so as the avoid damage to L/C), after grinding, press ZERO key to measurethe four corners again.D. Repeat step B-C until the difference between the four corners and the center is±1 division, then recalibrate the scale.E: After grinding the scale, if there are still big differences In the displayed weighing betweenthe 4 corners and center of the scale, it means malfunction in L/C.F: Pay attentions to L/C specification when grinding, the smaller Max. Capacity, the weakergrinding force.23 JCL Service Manual

JADEVER SCALE CO., LTDAfter finished grinding the scale, please install the upper cover, turn the scale upside down,then tighten 4 fixing screws, and then cover the stainless weighing pan.12. Switch on the scale, conduct calibration then check weighing functions.ModelJCL-1.5KJCL-3KJCL-6KJCL-7.5KJCL-15KJCL-30KLC Max. capacity(ZEMIC load cell)3kg5kg10kg10Kg20Kg40kg6-3 Rechargeable Battery ReplacementLC Max. capacity(MAVIN load cell)3kg4.5kg7.5Kg10Kg20Kg45Kg1.Remove the stainless weighing pan.2. Put the scale upside down, Loosenand remove the screw on the battery cover.3.Remove the battery cover.4. Disconnect the wire connection then removethe rechargeable battery.5.Prepare for a new rechargeablebattery and make sure the red endconnected to red wired and black end6. Put the rechargeable battery in thechamber with literal side upward and thewire to the right side.connected to black wire.24 JCL Service Manual

JADEVER SCALE CO., LTD7.Install the battery cover and tightenthe fixing screw.properly.8. Install the stainless weighing pan6-4 RS-232 Replacement1.Remove the upper housing(refer to2. Loosen and remove the 4 fixing screws5-1, step 1-4) to remove the load cell support module.3.Lift the whole load cell supportModule out of the scale.4.Loosen and remove the fixing screw on theRS-232 board.5.Remove the old RS-232 board and 6. Install the wire connection(refer to 2 – 2)install a new one.25 JCL Service Manual

JADEVER SCALE CO., LTD7.Put the load cell supporter module back, cover upper housing and tighten with the fixingscrews, then put the scale pan properly.8.Proper setting is required(i.e. Baut rate, external device and print mode);9. Wire connection between the external devices, please refer to 3.6-5 Keypad Replacement1. Remove the weighing pan. 2. Put the scale upside down, loosen and removethe 4 fixing screws.3. Open the upper cover. 4. Remove the keypad from the main board.5.Remove the upper house and tearoff the keypad.6.After the removal of residual glue,attach the new keypad.7.Please insert the keypad .8. Put the upper housing on the scaleand test the keypad (refer to 4-6)26 JCL Service Manual

JADEVER SCALE CO., LTD9. Put the scale upside down, and 10. Install the stainless steel weighingtighten the 4 fixing screws.pan properly.6-6 LCD replacement1. Cut off the defective LCD. 2. Remove the LCD which is been cut off fromthe main board.3. Remove the residual tin from main 4.Install a new LCD in level.board.5. Use tin to weld the LCD, with care. 6. Replacement is completed.27 JCL Service Manual

JADEVER SCALE CO., LTD8. Applicable machine version and software versionVersion:02Revision date: September 22, 200928 JCL Service Manual