LG CJS45F Service Manual

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3. IC503(GD25Q80) CHECK
CHECK IC500 PIN.
OKOK
Refer to MCS troubleshooting.
Replace MCS.
OKOK
Check
pinA12, pinB12 SF_SCK :
SF_MISO
Check MCS
voltage 3.3 VA.
Check MCS.
NO
NO
NO
YES
YES
YES
YES
ELECTRICAL TROUBLESHOOTING GUIDE
2. MCS PART CHECK
YES
YES
YES
YES
YES
MCS PART CHECK
OK
Refer to SMPS troubleshooting.
Check and change IC101.
X500: 24 MHz, X500: 32.768 kHz
Check the operation.
Check and change IC100.
NO
NO
NO
Check if voltage of CN102
Pin13, 14 is 12 VA.
Check if IC101
have 1.2 VA output.
Check if IC100
have 3.3 VA output.
jomi

LG CJS45F Specifications

General

Brand	LG
Model	CJS45F
Category	Stereo System
Language	English