Panasonic gp8du gph8du th-37px50u th-42pd50u th-42px50u th-42px500u th-50px50u th-50px500u troubleshooting Service Manual
Serviceman Mode
How to enter the Serviceman Mode
While pressing the [VOLUME DOWN] button of the main unit, press the [RECALL]
button of the remote control three times in a row (within 2 seconds).
button of the remote control three times in a row (within 2 seconds).
Adjustment method
Use the remote control to navigate through the adjustment menu.
[1] Button to select the Main items in forward direction
[1] Button to select the Main items in forward direction
Main Adjustment Items
[2] Button to select the Main items in reverse direction
[3] Button to select the Sub items in forward direction
[4] Button to select the Sub items in reverse direction
Use the [VOLUME UP] and [VOLUME DOWN] buttons of
the remote control to change the value of the Sub Items.
[3] Button to select the Sub items in forward direction
[4] Button to select the Sub items in reverse direction
Use the [VOLUME UP] and [VOLUME DOWN] buttons of
the remote control to change the value of the Sub Items.
Cancellation
To exit the serviceman mode, switch off the power by
pressing the [POWER] button of the main unit.
pressing the [POWER] button of the main unit.
Figure 49
Contents of adjustment mode
1. The value is shown as a hexadecimal number.
2. The preset value differs depending on models.
2. The preset value differs depending on models.
3.
After entering the adjustment mode, write down the value of each Sub item
before making any adjustment.
before making any adjustment.
Main Item
Sub Item
Sample Data
PCT-ADJ
PICTURE
22D
PICTURE2
200
COLOR
30
TINT
0
S-BRT
800
RFAGC1
74
AGC-ADJ1
FIX
RFAGC2
74
AGC-ADJ2
FIX
OPTION
BOOT
SD
OPT00
1
ANT-POW
OFF
POF-SET
NORMAL
STB-SEC
SEC
EMGCY
OFF
CLK-ADJ
80
56