Tuesday 20 August 2019

How to enter the service mode – Panasonic TX23LX50M, Schematic diagram


Panasonic TX23LX50M, Panasonic TX23LX50A, Panasonic TX23LX50X – service mode, schematic diagram
Service Mode Function
MPU controls the functions switching for each IICs through IIC bus in this chassis. The following setting and adjustment can be
adjusted by remote control in Service Mode.
How to enter SERVICE 1
1. In sound menu, set BASS to MAXIMUM, and set TREBLE to MINIMUM.
2. Simultaneously press INDEX button on remote control and DOWN button [ ] on the TV set.
How to enter SERVICE 2
1. Set the channel to CH99.
2. Select the “Sub-Brightness” under Service 1.
3. Press HOLD button on remote control.
Note:
To exit to Service mode, press N button on remote control.
Option Code Setting
If the memory IC (IC1103) or A Board is replaced, option code should be re-memorized.
Spare part of IC1103 is already memorized all Data for TX-23LX50M.
If you use for other model, you should re-memorized the different option code in SERVICE 2.
 Schematic Diagram

LG 52LG50FD, 52LG50FD-SA-Service adjustments-service mode entry-white balance adjustment-ADC component 1 RGB adjustment and more

  These adjustments are similar to 42LB7DF Because this is not a hot chassis, it is not necessary to use an isolation transformer. However...