LG CKS57F Service Manual

3-26
Copyright © 2018 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
WAVEFORMS OF MAJOR CHECK POINT
CLK
DATA
ADDRESS
CS
CD-16 M
Fig 1. SDRAM
①IC504 pin38, ②IC504 pin53
③IC504 pin35, ④IC504 pin19
Fig 2. SERVO
⑤IC500 pin M1
1
2
3
4
CD_BCK
CD_LRCK
CD_DATA
MCS_MCLK
MCS_BCK
MCS_LRCK
ADC_DATA
Fig 3-1. AUDIO PATH
⑥IC500 pin N4, ⑦ICIC500 pin N1
⑧ICIC500 pin N2
Fig 3-2. AUDIO PATH
⑨IC500 pin D2, ⑩IC500 pin E1
⑪IC500 pin D1, ⑫IC500 pin E2
8
6
7
10
12
11
9
5
USB_5 V
D+
D-
Fig 4. USB
⑬IC500 pin A8, ⑭IC500 pin A7
14
13

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