60
TROUBLESHOOTING
4-2-13. If refrigerator ROOM Lamp does not light up (F,R - Same condition) - LED
1. When you replace the lamp of freezer/fridge, please power OFF
[Explain cold-storage room lamp on the basis of.]
①
When lightning of Panel PCB is disabled
Start
No
Yes
Yes
No
Yes
No
No
Is the Door switch
contact normal?
Is the output voltage of
IC71 normal?
Normal / Re-check
Is the output voltage
of IC10 MICOM #32
Normal?
Is the main PCB connector(CN71)
insertion status normal?
Replace PCB/ Repair the IC71
Re-insert the connector
Yes
No
Does the main PCB connector(CN71)
Output normal?(11~13V)
Check the connector terminal
Replace PCB
Yes
No
Is the LED Lamp connected
Properly?
Check the connector terminal
Yes
Yes
No
Is the LED Lamp normal?
Replace LED Lamp
Replace PCB
Replace Door S/W
Door & MICOM State
Door
Close
Open
F
MICOM(#60)
R
MICOM(#52)
0V(Low)
5V(High)
0V(Low)
5V(High)
MICOM(LAMP) State
Door
Close
Open
F
MICOM(#31)
R
MICOM(#32)
0V(Low)
5V(High)
0V(Low)
5V(High)
IC71 State
MICOM
(#31/ #32)
IC71 output
(#15/ #16)
0V(Low)
5V(High)
12V(High)
0V(Low)
☞
Checking method of Door Switch voltage
-. PCB common Ground REG1 Heater Sink and
CN30-"2"(Brown) : measure the voltage (R Door Switch)
CN30-"1"(Black) : measure the voltage (F Door Switch)
=> See the R DOOR Switch at the following picture
CLOSE
OPEN
Common PCB Ground
REG1 Heater Sink
☞
Output voltage checking method
-. PCB common Ground REG1 Heater Sink and
CN71-"5"(Pink) : measure the voltage (F LED Lamp)
CN71-"3"(Blue) : measure the voltage (R LED Lamp)
=> Picture is R LED Lamp operation below.
CLOSE
OPEN
Common PCB Ground
REG1 Heater Sink
NW-미주향-AC 2010.6.8 3:48 PM 페이지60 in
Содержание RB195ACBP
Страница 16: ...16 PRODUCT SPECIFICATIONS 2 8 Cooling Air Circulation NW 미주향 AC2010 6 83 46PM페이지16 in ...
Страница 87: ...87 EXPLODED VIEW PARTS LIST 5 4 Disassembly of Freezer Door 2 1 3 1 1 NW 미주향 AC2010 6 83 48PM페이지87 in ...
Страница 92: ...92 6 2 Connector Layout with part position Main Board PCB DIAGRAM NW 미주향 AC2010 6 83 48PM페이지92 in ...
Страница 93: ...93 7 Wiring Diagram NW 미주향 AC2010 6 83 48PM페이지93 in ...
Страница 94: ...94 8 1 Refrigerator Block Diagram 8 Schematic Diagram NW 미주향 AC2010 6 83 48PM페이지94 in ...
Страница 95: ...95 8 2 Power and Signal Block Diagram SchematicDiagram NW 미주향 AC2010 6 83 48PM페이지95 in ...
Страница 96: ...96 SchematicDiagram 8 3 Main NW 미주향 AC2010 6 83 48PM페이지96 in 96 NW 미주향 AC2010 6 83 48PM페이지97 in ...