Thursday, January 14, 2016

PANASONIC TX-32LX1 -TX-26LX1 Service mode – Led blinking code – White balance adjustment –Voltage conformation – LCD Television Repair and service

Category: LCD Television Repair and Service 

Contents of this article 

  • Self check mode
  • How to enter to service mode 
  • Voltage check 



PANASONIC TX-32LX1 -TX-26LX1

Self Check
Self-check is used to automatically check the bus lines and hexadecimal code of the TV set. To enter Self-Check mode, keep pressing the down (-/v) button on the TV set and press the STATUS button on the remote control. To exit Self Check,
switch off the TV set at the power button.
Adjustment Method
How to enter Service 
Set the Bass to maximum position, set the Treble to minimum position then keep pressing the INDEX button on the remote control and press the down button (-/v) on the TV set, this will place the TV set into the Service Mode 1.
Key Command
# Press the RED / GREEN buttons to step up / down through the functions.
# Press the YELLOW / BLUE buttons to alter the function values, to alter White Rasters use +/- buttons
# Press the OK button after each adjustment has been made to store the required values.
# To exit the Service Mode, press the "N" button.
White Balance Adjustment
Instrument
# Remote Control
# LCD WB meter (Minolta CA-210 or equivalent)
Condition
# Switch on the TV Set. Enter Service1. Step down to Highlight line and keep the aging time more than 20 minutes.
Procedure
# After aging time above set White Raster No.12 for Highlight and No.4 for Lowlight Press the OK button to store.
# Put Minolta Sensor to the center of the LCD Panel with 25mm gap between Minolta Sensor and LCD Panel. Adjust "x"
and "y" values by changing Red and Blue values.
# Press OK button to store setting.
Highlight
x 0,277 ± 0,015
y 0,290 ± 0,015
Lowlight
x 0,282 ± 0,015
y 0,284 ± 0,015
Setting Inspection
Voltage Confirmation
Confirm the following voltages: A board
Description
Test point
Position
Range
30V
TP3822
D3865
28V - 32V
12V
TP3824
C3864
11,4V – 12,6V
AUDO_15V

A1, pin20,21
14V - 16V
8V
TP3823
C3858, +pin
7,6V – 8,7V
STBY3.3V
TP3817
C3844, +pin
3,2V – 3,45V
STBY1.8V
TP3803
C3818, +pin
1,77V – 1,89V
STBY5V
TP3813
C3801
4,8V – 5,4V
CEC3.8V
TP3814
C1212
3,5V - 4,2V
3V3_HD
TP3834
IC3808, pin 5
3V - 3,6V
1V8_HD
TP3816
D3890
1,62V - 1,98V
5V_SIG
TP3826
C3873
4,83V – 5,25V