2-9. Micom
TROUBL
E
DIAGNOSIS
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S
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Bad PCB
All display
Bad connection
Bad connector
Visual check on connector
Reconnect
LCD are off.
between Main PCB
connection from main
connection.
connector.
and display circuit.
PCB to display PCB.
Defective PCB
PCB transformer
Check resistance of PCB
Replace PCB
Applicable to
transformer.
winding is cut.
transformer input and output
transformer or PCB. model without
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B
C
P
temperature fuse is
(If resistance is infinity, trans
burnt out.
winding is cut).
DefectivePCB electric Defective regulator IC
Check voltage at input/output
Replace regulator.
Refer to electric
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.)
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,
2
1
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explanation.
PCB electric terminal
Check fuse in PCB electric
Replace PCB fuse.
fuse is burnt out.
terminal with a tester.
STR Parts are
Check if STR No. 2 and 3 pins
Replace parts.
Applicable to
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.
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dispenser.
Abnormal
Bad connection
Lead Wire connecting
Check Lead Wire terminals
Reconnect Lead
between Main PCB
main PCB and display
connecting Main PCB and
Wire and directly
operation
and display circuit.
PCB is cut or connector display PCB with a tester.
connect defective
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Defective LCD.
Defective LCD.
Check if all LCD are on when
Replace display
Refer to display
Main PCB Test switch is
PCB.
circuit in circuit
.
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h
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(
d
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p
key and power freezer key are
pressed at the same time for
more than one second.)
electric power.
display LCD
-72-
Содержание LSC27926
Страница 19: ......
Страница 25: ...EXPLANATION FOR MICOM CIRCUIT 25 ...
Страница 35: ...EXPLANATION FOR MICOM CIRCUIT 35 ...
Страница 36: ...EXPLANATION FOR MICOM CIRCUIT 36 ...
Страница 37: ...EXPLANATION FOR MICOM CIRCUIT 37 ...
Страница 38: ... 38 ...
Страница 39: ...EXPLANATION FOR MICOM CIRCUIT 39 ...
Страница 40: ... 40 ...
Страница 41: ... 41 ...
Страница 47: ...4 Ice Maker Circuits ICEMAKERANDDISPENSERWORKINGPRINCIPLESANDREPAIR 47 ...
Страница 49: ...CIRCUIT 3854JK1010C 49 ...
Страница 83: ...3 6 Brazing Reference Drawings TROUBLE DIAGNOSIS 83 ...
Страница 94: ... EV EXPLODED VIEW FREEZER DOOR PART 200A 241F 241G 201A 203A 241G 241E 700A 243A 94 212J ...
Страница 101: ...February 2009 MFL62215904 ...