LG CK43 Service Bulletin

[Others][Apply the modified main board to improve Disk Open / Close malfunction.
(Measure and replace the main board)]
Service Bulletin
Applicable for Serial Number : ALL Serial
1. Repair Instruction
For repairing this issue, we need to change Main Board after checking resistor value.
1) Measurement and replacement of main board is applied to the use of long-term inventory and to all boards to be
received
from the field in the future
2) If issue is happened, Change from issue Main Board to improved Main Board after checking the resister value because it
has
no Part Number changing.
(Improved Main Board information : The Board that is produced after ‘19.3.27 / ‘19.3.29 / ‘19.4.8)
The Board after ‘19.3.27 : CJ98, CJ88, CJ87
The Board after ’19.3.29 : CJ45, CJ44, CJ65, CK57, CK56, CK43, CK99
The Board after ‘19.4.8 : OJ98, OK99, OM4560, OK45, OK55, OK75
※ Please refer
to next page for each model’s service method
Page 1
Applicable for models MINI / Onebody
- MINI *(CJ98,CJ88,CJ87,CJ65,CJ45,CJ44,CK99,CK57,CK56,CK43)
- Onebody *(OJ98, OK99, OM4560, OK45, OK55, OK75)
Bulletin Type : SVC Notice Parts Others Applicable only with symptoms with every
repair
Symptoms
Disc Tray does not work when we push Disc
open or Disc close button
Picture
Cause
Open or Close signal of the models that use
MCS DSP IC is affected to each set impedance


Product : Mini / Onebody / Louder
Bulletin # :
PNZ201900013-01
Release Date : 2019.08.22

LG CK43 Specifications

Power

power consumption networked standby	0.5 W
bus power supply (USB) voltage	5 V
bus power supply (USB) current	500 mA

Audio

amplifier total RMS output power	300 W
frequency range	2402 to 2480 MHz
output power (max)	10 dBm

Weight and Dimensions

width	300 mm
height	163 mm
depth	241 mm