LG CJ98 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 CJ98 Specifications

General

MP3 playback	Yes
Recording on	USB
Supported radio bands	FM, PLL
Card reader integrated	No
Audio formats supported	MP3, WMA
Tuner type	Digital
RDS features	CT, PS, PTY, RT
FM band range	87.5 - 108 MHz
Preset stations quantity	50
Type	Home audio mini system
Product color	Black, Red
Disc loading type	Tray
Number of optical discs	1 discs
Coloration	Monochromatic
Front speaker type	1-way
Illumination location	Front
Impedance	6 Ω
Speaker type	2-way
RMS rated power	3500 W
Woofer diameter	254 mm
Number of speakers	2
Mid-range driver diameter	203 mm
Power source	AC
Input voltage	110-220 V
Input frequency	50 - 60 Hz
Power consumption (standby)	0.5 W
Power consumption (typical)	270 W
Equalizer modes	Bass, Classic, Custom, Jazz, Pop, Rock
Headphone connectivity	3.5 mm
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Microphone connectivity	6.3 mm

Weight and Dimensions

Depth	170 mm
Width	450 mm
Height	349 mm