LG CKS57F Service Manual

TUNER FUNCTION CHECK
Check tuner module(TU200)
operation.
Check tuner module voltage
(Pin4: +3.3 V).
YES
YES
NO
Check IC500 Pin P7, P8, P10, P11.
Check tuner module data.
YES
NO
Refer to function check.
8. TUNER FUNCTION CHECK
3-23
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Only for training and service purposes.
ELECTRICAL TROUBLESHOOTING GUIDE
7. AUX / TUNER FUNCTION CHECK
FUNCTION CHECK
IC500 output data. Replace IC201.
Check IC202
Pin18,19:ADC, MIC_DATA SDOUT,
Pin17: BCK, Pin16: LRCK,
Pin15: MCLK.
Check IC202
Pin8: ADC +3.3 V,
Pin13, 14, 25: DVCC +3.3 V.
Check CN102 Pin13,14: 12 VA.
Check JK200, TU200.
Check
IC500 input data.
Check IC202
Pin18, 19 output data.
Check
IC202 Pin8: ADC +3.3 V
Pin13,14,25: DVCC +3.3 V.
Check
IC202 Pin27, 28, 29, 30
input.
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES YES
YES
OK

LG CKS57F Specifications

General

Brand	LG
Model	CKS57F
Category	Stereo System
Number of Discs	1
Tuner	Yes
Channels	2.0
Bluetooth	Yes
USB Port	Yes
FM Radio	Yes
Optical Input	No
HDMI Input	No
Remote Control	Yes
Type	Mini
Playable Media	CD