Thursday, December 24, 2015

PANASONIC TX-32LX70P - TX-26LX70F Service mode led blinking code

PANASONIC TX-32LX70P - TX-26LX70F

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 STATUS button on the remote control and press the down (-/v) button on the TV set. To exit Self Check, switch off the TV set at the power button.
Power LED blinking 
When abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by number of blinking of the Power LED on the front panel of the unit.
Blinking times
Contents
Check point
1


Inverter SOS


POWER UNIT
LCD PANEL

3

BT_30V, SOUND 18V,
PANEL 12V
AP BOARD, H BOARD

4



SUB 9V


AP BOARD, H BOARD
DG BOARD
5



SUB 5V


AP BOARD, H BOARD
DG BOARD

6

MAIN 9V

AP BOARD, DG BOARD
8
MAIN 3,3V
AP BOARD, H BOARD
DG BOARD

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 Menu
How to enter SERVICE 1
In main menu, move to choose sound menu, set BASS to MAXIMUM, and set TREBLE to MINIMUM. Simultaneously press INDEX button on remote control and DOWN button (-/v) on the TV set.
How to enter SERVICE 2
Enter the SERVICE 1 mode.
Press the GREEN button to step down to the last menu position.
Set the program position to 99.
Press HOLD button on remote control.
Note:
To exit from Service mode, press N or Power button on remote control.
Key Command
# Press the RED/GREEN button to step up/down through the functions and adjustments.
# Press the YELLOW/BLUE button to change the adjustment values or function.
# Press the numerical button 1-7 to change 0/1 of each option item.
# Press the OK button after each adjustment has been made to store the required values.
Subcontrast adjustment
1. Receive PAL colour bar (100% white) RF signal.
2. Enter “Sub-Contrast” adj. In SERVICE 1 mode.
3. Start adjusting by using Blue Key.
4. If the adjustment finished normally, the letter of “Sub-Contrast” will change from red to black
Voltage Confirmation
AP board
Normal mode
Test point
Position
Voltage
TP7201
Cathode D7102
7V ± 1V
TP7301
J218
9V ± 0,45V
TP7303
J415
5,1V ± 0,25V
TP7401
JS7958
18,8V ± 0,8V
TP7403
J213
3,3V ± 0,15V
TP7501
JS7503
5,1V ± 0,25V
TP7502
J221
9V ± 0,45V
TP7601
J406
31,5V ± 2,5V
TP7702
JS7702
12,2V ± 0,6V
 Standby mode
Test point
Position
Voltage
TP7201
Cathode D7102
10V ± 2V
TP7301
J218
max 2V
TP7303
J415
max 2V
TP7401
JS7958
max 2V
TP7403
J213
max 2V
TP7501
JS7503
max 2V
TP7502
J221
max 2V
TP7601
J406
max 4,5V
TP7702
JS7702
max 2V