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Three Stages   

 BATTERY 

CHARGER 

 

         

 

     

 

BC–012–20A    

 SERVICE 

MANUAL

 

 

 

               

     

   

Warning!

 

Qualified personnel who are familiar with the risks involved 
and relevant regulations may only carry out maintenance and 
repair work.   
To avoid electrical shock and short circuit causing 
component damage, disconnect input power cable before 
working on the device.

   

Safety instructions are required to be 

observed at all times. 

Содержание BC-012-20A

Страница 1: ...familiar with the risks involved and relevant regulations may only carry out maintenance and repair work To avoid electrical shock and short circuit causing component damage disconnect input power cable before working on the device Safety instructions are required to be observed at all times ...

Страница 2: ...BLY DRAWING AS1 SYSTEM BLOCK DIAGRAM BD1 TROUBLESHOOTING Problems Solutions TS1 PCB Connection and Part List TS2 Checking Procedures TS3 TS4 COMPONENT LOCATION LY1 CALIBRATION PROCEDURES CA1 SCHEMATIC DIAGRAM SD1 SD3 ...

Страница 3: ...DRAWN APPD TITLE PART NO KM BANKU PowerSaver System Block BC 012 20A CHKD DATE SHEET REV TM 10 06 2005 Computer Power Ltd Diagram 01 01 F ...

Страница 4: ...DRAWN APPD TITLE PART NO KM BANKU PowerSaver BC 012 20A CHKD DATE SHEET REV TM 10 06 2005 Computer Power Ltd Assembly 01 01 F ...

Страница 5: ...DRAWN APPD TITLE PART NO KM BANKU PowerSaver System Block BC 012 20A CHKD DATE SHEET REV TM 10 06 2005 Computer Power Ltd Diagram 01 01 F ...

Страница 6: ...emove SC8 and NU1 Symptom Possible cause and solution AC input is normal but the LED display are off Check input fuse F2 If F2 fuse blown up then follow the checkpoints 1 Check Q1 Q6 2 Check R8 R12 R35 R36 3 Check D3 D4 D6 and D33 4 Check C3 C4 5 After verified above components are in good condition then re install F2 fuse of same type and rating AC input and the LED display are normal but no DC o...

Страница 7: ...AY BOARD CN2 TO MAIN PC BOARD CN7 C PARTS LIST Main PC Board 1 T1 TRANSFORMER 2 Q1 Q4 TRANSISTOR JP13009 3 F1 OUTPUT DC FUSE 4 F2 INPUT AC FUSE 5 C3 C4 E CAP 4 7UF 50V 6 R8 R12 R35 R36 RESISTOR 5 1 OHM 1 4W 7 D3 D4 DIODE HER305 8 D6 D33 DIODE MBR20100 9 D17 DIODE 1N5404 10 D7 D8 DIODE 30CTQ060 11 Q9 Q10 TRANSISTOR C1815 Y 12 D34 D38 DIODE 1N4148 LED Display Board 1 LD1 LD2 GREEN LED 2 LD3 YELLOW L...

Страница 8: ...her assembly 1 Refer to the components location LY1 3 Connect the DC power supply to the battery charger output Connect the DC power supply to the F1 fuse FC1 3 Set the DVM to DC Volt connect the to U1 pin 12 and connect the to U1 pin 9 The normal reading should be between 10 12VDC If the reading is out of this range check if the equipment DC power supply setup is correct or not 4 Connect the OSC ...

Страница 9: ...DRAWN APPD TITLE PART NO KM BANKU PowerSaver Components BC 012 20A CHKD DATE SHEET REV TM 10 06 2005 Computer Power Ltd Location 01 01 F ...

Страница 10: ...the DVM to the charger output DVM to the charger output 6 Set the DC Electronic Load to zero connect the Charger to 230VAC the CHARGER ON And FLOAT LED should light up If not back to page TS1 7 Set the DC Electronic Load to 5A the CHARGER ON and ABSORPTION LED will light up If the ABSORPTION LED is not light up then adjust the VR5 to keep the ABSORPTION LED light up 8 Switch the battery selector f...

Страница 11: ...43 C44 C20 CN1 1 2 3 D11 D12 Q6 R94 D17 CN7 1 2 3 R96 R97 R98 R99 CN8 1 2 T1 15 13 3 1 7 5 9 18 11 2 C59 R100 R23 R25 L1 2 1 C41 D7 D8 R15 C8 R14 C7 R62 R57 VR5 C36 R34 Q8 ZD1 R95 D9 F1 C28 R19 R38 U2 3 2 6 7 5 4 8 1 U1 GND 7 VCC 12 1 1 2 2 3 3 4 4 5 5 14 14 15 15 16 16 9 9 6 6 13 13 10 10 8 8 11 11 D5 U3 10 U3 11 T1 PIN9 T1 PIN5 U2 PIN4 CN8 PIN1 DRAWN APPD TITLE PART NO KM BANKU PowerSaver BC 012...

Страница 12: ...R11 Q2 D4 D2 T2 C5 Q3 R35 R12 R10 Q4 C21 RT2 t BR1 C24 C25 L2 1 L2 2 C26 V1 CN4 1 2 3 F2 R58 J1 RT1 t R6 R36 C6 R13 T2 T1 PIN5 T1 PIN9 DRAWN APPD TITLE PART NO KM BANKU PowerSaver BC 012 20A CHKD DATE SHEET REV TM 10 06 2005 Computer Power Ltd Schematic 01 03 F ...

Страница 13: ... R84 U4A 7 6 1 R81 R82 D53 R83 C49 Q16 R92 C51 R85 R93 C52 C53 C54 C37 R44 R41 R86 R80 R55 C32 R66 C55 R65 R75 R74 CN5 1 2 R68 R70 R67 R71 D49 D46 U4C 9 8 14 R69 C58 D47 Q14 C56 U4D 11 10 13 D48 R73 D54 R91 Q15 R90 C50 R88 R87 R89 R72 R48 R45 R R49 C57 RT7 U3 11 U3 10 U3 6 U4 Pin4 CN2 Pin1 CN8 PIN1 U1 PIN4 U3 6 DRAWN APPD TITLE PART NO KM BANKU PowerSaver BC 012 20A CHKD DATE SHEET REV TM 10 06 20...

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