Must PV1800 2K HM, Service Manual

Page 1: ...Service Manual PV18 2K 3K HM Inverter Charger PV1800 2K 3K HM Service Manual...

Page 2: ...0 3 3 3 To Check Drivers 12 3 4 To Check AC Charging Circuit 13 3 4 1 To Inspect Power Components as 13 3 4 2 To Check Drivers 13 3 5 To Check Rectifier Circuit 15 3 5 1 Charging Circuit 15 3 6 To Che...

Page 3: ...iring guidance for PV18 2K 3K HM as well as instructions of assembling and testing It is best to have some electrical or electronic background knowledge With this guidance hope it will help you to che...

Page 4: ...Service Manual PV18 2K 3K HM 2 1 3 Over review and Introduction of Inverter charger Parts Solar Charge Controller Control Board Main Board...

Page 5: ...connecting battery if the fault is still on please inspect the main board following 3 3 08 To restart the inverter to check whether the fault repeats if yes it requires to replace the control boards...

Page 6: ...ery Working Mode Test 3 1 1 To Check DC FUSE and Capacitance F1 F6 180 00001 00 Fuse F40A 32VDC UL Positioning Attribute Reference Value Failure Status F1 F6 Resistor 0 ohm open C19 C20 C39 C40 140 00...

Page 7: ...t Module 150 00052 00 MOSFET TI CSD19505KCS 201A 80V N BULK TO 220 Positioning Attribute Reference Value Failure Status All MOSFET 8pcs Diode SD 0 44V DS OL Short circuit or Explosion Note If one or m...

Page 8: ...14 R79 R257 All the resistors are 100 10010 00 RES CHIP TF 1 4W 10 F 1206 To use Multi meter to measure each resistors till to find out the broken ones and to replace them no need to change all the re...

Page 9: ...Service Manual PV18 2K 3K HM 7 UC2 UC4 150 00005 00 Plug in Transistor TOSHIBA 2SC2655 Y 2A 50V UC1 UC3 150 00004 00 Plug in Transistor TOSHIBA 2SA1020 Y 2A 50V UC4 UC1 UC3 E C UC2 B...

Page 10: ...urnt UC1 UC3 Diode BE 0 6V BC 1 3V CE 0 2V Short circuit or burnt U3 160 00006 00 Plug In IC LINEAR FAIRCHILD KA3525A Positioning Attribute Reference Value Failure Status U3 Diode Pin11 Pin12 5 4M Pin...

Page 11: ...r Diode D17 D18 D19 D20 D17 D18 D19 D20 150 10042 00 FAIR RHRP1560_NL 15A 600V Positioning Attribute Reference Value Failure Status D17 D18 D19 D20 Diode to 0 37V to OL Short Circuit or Broken Note If...

Page 12: ...rt Circuit 3 3 1 Power Parts Q16 Q17 Q18 Q19 150 30088 00 IGBT IR IRGP4063D EPBF 48A 600V TO 247 Positioning Attribute Reference Value Failure Status Q16 Q17 Q18 Q19 Diode EC 0 4V CE OL Short Circuit...

Page 13: ...72 00 SMD Zen er Diode PAN JIT 1SMA4745 16V 1W SMD D10 D12 120 20007 00 SMD Diode PANJIT SS14 1A 40V SMD Positioning Attribute Reference Value Failure Status R53 R55 R60 R63 Resistor 4 7 ohm Open Circ...

Page 14: ...SMT Positioning Attribute Reference Value Failure Status U24 U25 U26 U27 Resistor Pin8 Pin5 2K Pin7 Pin5 2K Short Circuit or Broken C150 C151 110 10040 00 SMD Capacitors CER MT 10nF 50V J NPO 103 0805...

Page 15: ...Reference Value Failure Status Q20 Q21 Q22 Diode EC 0 4V CE OL Short Circuit or Broken Note If there is one or more than one components broken please replace them all 3 4 2 Drivers R259 R261 R263 100...

Page 16: ...R260 R262 Resistor 100 ohm D56 D57 D58 Diode EC 0 6V CE OL Short Circuit or Broken Note When test diodes please remove R259 R261 R263 otherwise the test result is not right UC3843 U28 U28 160 00001 00...

Page 17: ...2K 3K HM 15 3 5 To Check Rectifier Circuit 3 5 1 Charging Circuit D21 D22 D23 150 10061 00 Plug in Diode ON MBR20200CT 20A 200V SCKY RAD BULK REC1 150 10066 00 Plug in Diode HY GBU8M 8A1000V D22 D23 P...

Page 18: ...D23 Diode P to N 0 44V N to P OL Short Circuit or Broken REC1 Diode to 0 47V to OL to 0 47 to OL 3 6 To Check Power Circuit Q1 150 30005 00 Plug in Transistor MOSFET IR IRF640NPBF18A 200V R1 130 00211...

Page 19: ...206 D1 150 10009 00 Plug in Diode PAJIT UF204 2A 400V ULTRAFAST AXI ZD4 120 20072 00 SMD Zen er Diode PAN JIT 1SMA4745 16V 1W SMD U11 120 10037 00 IC ON MC78M05CDTG DPAK 3 SMD R94 100 17047 00 SMD Res...

Page 20: ...Failure Status Q1 Diode SD 0 5V DS OL Short Circuit or Broken D1 Diode to 0 47V to OL ZD4 Diode to 0 4V to OL ZD12 Diode to 0 4V to OL D34 Diode to 0 47V to OL U11 Resistor I to O to G OL R99 Resistor...

Page 21: ...nal Please open the cover and measure as follows Positioning Attribute Reference Value Failure Status PV to BAT Resistor 10K Short Circuit If in Short Circuit Please replace MOSFET in Main Board Q12 Q...

Page 22: ...y note 3 8 1 NTC in position of HS3 plugs in position of SW1 on main board After taking cover SW1 130 20034 01 Thermistor KI66 120B5 120 KW Positioning Attribute Reference Value Failure Status SW1 Res...

Page 23: ...Manual PV18 2K 3K HM 21 NTC4 3 8 3 NTC in HS4 NTC_HS4 130 20005 00 Thermistor NTC 15K 2 5mA KW Positioning Attribute Reference Value Failure Status NTC4 Resistor 5 7K ohm Short Circuit or Open Circui...

Page 24: ...nctioning please make NTC short circuit and test the inverter again if the fault disappears it means the NTC is wrong 3 9 To Check Fan Drive Circuit Positioning Attribute Reference Value Failure Statu...

Page 25: ...e Failure Status R319 R329 Resistor 100K ohm Short Circuit or Other Value R321 R325 R326 R331 10K ohm R320 R330 100 ohm D62 D65 Diode to 0 6V to OL Short Circuit or Burst Q34 Q35 SD 0 5V DS OL 4 Other...

Page 26: ...Manual PV18 2K 3K HM 24 4 3 Dust covered Control Board 5 Assembling Guidance 5 1 Unfix Upper Cover 5 1 1 Unscrew four screws of the cover as following 5 1 2 Pluck LCD disconnection cable and take the...

Page 27: ...al PV18 2K 3K HM 25 5 2 Unfix Power Board 5 2 1 To take the Air duct Paper To take five plastic nails in heat sink and take out the air duct paper 5 2 2 To pluck AC input and output cable and fan conn...

Page 28: ...ual PV18 2K 3K HM 26 5 2 3 To Remove PV Connection Cable 5 2 4 To Remove the two screws on the side and take out the middle clapboard 5 2 5 Unscrew the two screws in control board and take the control...

Page 29: ...2 6 Unscrew the eleven screws in main boards and take main board out 5 3 Assembling the Inverter When Assemble the unit please take opposite order of dissembling 6 Test after Repairing 6 1 Before tes...

Page 30: ...Service Manual PV18 2K 3K HM 28 Afterwards please Turn ON the unit 6 2 To connect with AC Grid for testing...

Page 31: ...Service Manual PV18 2K 3K HM 29 6 3 To connect PV for testing...