LG CKS57F Service Bulletin

2. Model :
CJ45,CJ44
Main PCB : ~
EAX67136103
ECO NO :
EKNJ300169
Change Details : R500, R502 : 0RJ4701C678(4.7KΩ, 1005, 5%, 1/16W) → 0RJ4700C678(470Ω, 1005, 5%, 1/16W)
* It should support only the model that produced before 2019.3.29
Page 4
EAX Main PCB (The bottom surface)
Check the chip resister value
with Multi tester
Service Bulletin
Product : Mini / Onebody / Louder
Bulletin # :
PNZ201900013-01
Release Date : 2019.08.22
After checking R500 or R502 resister value
-If it is about 4.7KΩ, Change Main board
-If it is about 470Ω,
We don’t need to change Main board

LG CKS57F Specifications

General

Brand	LG
Model	CKS57F
Category	Stereo System
Language	English