TROUBLE DIAGNOSIS
- 120 -
Problems
Symptom
Causes
Checks
Measures
Remarks
Bad defrost.
Defrost is not
Defrost lead wire is cut.
Check if defrost lead wire is cut with a
Reconnect Lead
working.
tester.
Wire.
Defective defrost driving relay.
Check the voltage of CON2
Replace relay
Refer to load
with a tester after pressing main
or PCB.
driving conditions
PCB test switch twice.
check in circuit
If the voltage is normal then it is OK.
explanation.
Defective defrost sensor parts.
Check the resistance of defrost sensor
Replace defrost
Refer to sensor
with a tester.
sensor.
resistance
characteristic
table of circuit
explanation.
Defective
Buzzer
Defective connecting lead wire from
Check lead wire related to door
Repair lead wire.
buzzer
continuously
main PCB to door switch.
switch with a tester.
rings or door
Defective door switch parts.
Refer to door switch in parts repair
Replace door switch.
opening alarm
guide.
does not work.
Defective
Buzzer does
Key input wire is cut or bad connector
Check input wire with a tester.
Reconnect lead
Refer to display
display button
not ring and
terminal contact in main PCB and
wire and replace or
circuit in circuit
key does not
display PCB connecting lead wire.
directly connect bad
explanation.
sense even
contact terminal to
button is
lead wire.
pressed.
Key is continuously depressed due to
Disassemble frame display and confirm
Adjust or replace
structural interference.
visually.
interfering
structures.
Summary of Contents for GC-B207
Page 32: ...EXPLATION FOR MICOM CIRCUIT 32 GC P L207 88 LED GC P L207 Bar LED GC P L207 Dot LED ...
Page 35: ...EXPLATION FOR MICOM CIRCUIT 35 GC P L207 Bar LED GC P L207 Dot LED ASSEMBLY ASSEMBLY ...
Page 44: ...EXPLATION FOR MICOM CIRCUIT 44 GC B C207 88 LED E A B C D ...
Page 50: ...EXPLATION FOR MICOM CIRCUIT 50 GC P L207 Bar LED GC P L207 Dot LED b a e d b a e d ...
Page 51: ...EXPLATION FOR MICOM CIRCUIT 51 GC B C207 88 LED GC B C207 Bar Dot LED b a e d b a e d ...
Page 62: ...EXPLATION FOR MICOM CIRCUIT 62 GC P L207 Bar LED ...
Page 63: ...EXPLATION FOR MICOM CIRCUIT 63 GC P L207 Dot LED ...
Page 64: ...EXPLATION FOR MICOM CIRCUIT 64 GC B C207 88 LED ...
Page 65: ...EXPLATION FOR MICOM CIRCUIT 65 GC B C207 Bar Dot LED ...
Page 66: ...3 2 Parts List EXPLATION FOR MICOM CIRCUIT 66 GC P L207 88 LED ...
Page 67: ...EXPLATION FOR MICOM CIRCUIT 67 GC P L207 88 LED ...
Page 68: ...EXPLATION FOR MICOM CIRCUIT 68 GC P L207 Bar LED ...
Page 69: ...EXPLATION FOR MICOM CIRCUIT 69 GC P L207 Bar LED ...
Page 70: ...EXPLATION FOR MICOM CIRCUIT 70 GC P L207 Dot LED ...
Page 71: ...EXPLATION FOR MICOM CIRCUIT 71 GC P L207 Dot LED ...
Page 72: ...EXPLATION FOR MICOM CIRCUIT 72 GC B C207 88 LED ...
Page 73: ...EXPLATION FOR MICOM CIRCUIT 73 GC B C207 88 LED ...
Page 74: ...EXPLATION FOR MICOM CIRCUIT 74 GC B C207 Bar Dot LED ...
Page 75: ...EXPLATION FOR MICOM CIRCUIT 75 GC B C207 Bar Dot LED ...
Page 77: ...EXPLATION FOR MICOM CIRCUIT 77 PCB ASSEMBLY DISPLAY PCB ASSEMBLY MAGIC DISPLAY ...
Page 78: ... GC P L207 Bar LED EXPLATION FOR MICOM CIRCUIT 78 ...
Page 79: ...EXPLATION FOR MICOM CIRCUIT 79 PWBASSEMBLY DISPLAY ...
Page 80: ... GC P L207 Dot LED EXPLATION FOR MICOM CIRCUIT 80 ...
Page 81: ...EXPLATION FOR MICOM CIRCUIT 81 PWBASSEMBLY DISPLAY ...
Page 82: ... GC B C207 88 LED EXPLATION FOR MICOM CIRCUIT 82 ...
Page 83: ...EXPLATION FOR MICOM CIRCUIT 83 PCB ASSEMBLY MAGIC DISPLAY ...
Page 84: ... GC B C207 Bar Dot LED EXPLATION FOR MICOM CIRCUIT 84 ...
Page 85: ...EXPLATION FOR MICOM CIRCUIT 85 PWBASSEMBLY DISPLAY ...
Page 93: ...CIRCUIT 93 GC P L B C207 Bar LED ...