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Exchange d02d~d05d – Friedrich CP10F10 User Manual

Page 20

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Service Manual 20

Troubleshooting Guide

MODEL : BG8000ER, WG8000RY4, WG1000RY4

ELECTRIC PARTS TROUBLESHOOTING GUIDE:

Possible Trouble 1

• The unit does not operate.

Is the Trans input power

AC 115V?

Is the Trans output power

about AC 14V?

Is shorted the Trans. output?

Is output Voltage of IC01D

DC 12V?

Is output Voltage of IC02D

DC 5V?

Is the voltage No.18 of Micom

DC 5V?

Exchange Main P.W.B Ass'y.

Is the

connection between

Main and Display

all right?

Is the reset circuit all right?

(The No.14 of Micom

is 5V.)

• Check the Fuse.

• Check the wiring diagram.

• Check the Main

P.W.B pattern.

• Exchange the Trans.

Exchange D02D~D05D.

• Exchange IC01D.

• Exchange IC02D.

• Exchange IC01A.

• Connect connector

exactly.

• Check the P.W.B

pattern.

NO

NO

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES

YES

YES

NO

YES