HOW TO ENTER SERVICE MODE AND CIRCUIT DIAGRAM

To adjust height and other parameters, you have to enter its service mode option. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/ Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.
NB: Please read and understand well, the instructions to enter the service mode, before you begin. Be very careful. Note how to "EXIT" the service mode; after entering and adjusting data. This is very important.
Search the site by type in the brand name to your device, in the "Search box at the top right of the display window".

Hello
Panasonic TV's after 1996 can be set to "Serviceman Mode" with the
following remote control sequence:

-select the SET-UP icon and select CABLE mode.
-select the TIMER icon and set the SLEEP timer for 30 minutes.
-press the ACTION button twice to get out of the menus.
-change to channel 124.
-adjust the volume to minimum (0).
-Hit the VOL down button on the TV itself (not on
the remote) and a red "CHK" should appear in the upper corner.
-press the ACTION and VOLUME DOWN buttons (again, on the
TV, not the remote) you will toggle between AGING and SERVICEMAN modes.

Select Serviceman mode. The POWER button on the remote control will
select one of the five Serviceman Adjustment modes.

The modes are:

B - Serviceman VCJ SUB Adjustments. These include sub-tint,
sub-color, sub-brightness, sub-contrast, colorkiller/ABL/gamma,
audio and video adjustment, and vertical size.

C - Serviceman VCJ Cut-off adjustments. These include Red, Green
and Blue cut-off, red and blue drive, automatic fine tuning
(AFT), RF AGC (RF gain control), horizontal center, beam limit,
etc.

S - Serviceman Options Adjustments. These involce the PIP and
clock.

M - Serviceman MTS (Stereo/SAP) adjustments.

CHK - the mode you first entered. Normal picture and sound, lets
you check things over and still have a hotkey into the
service menu.

There is one more adjustment that isn't in the five modes, it's
global. When in either the yellow or red CHK mode, you can press
RECALL on the remote control to enter the purity field check mode.
This lets you select a pure white, red, green, or blue screen. A
good thing to walk away from if you just want to temporarily freak
out the floor manager, but it will be fixed as soon as the TV is
turned off. Oh well.

To get out of Serviceman mode, press ACTION and POWER on the
receiver simultaneously for at least 2 seconds. The TV will momentarily
shut off and then comes back on.


----------------------------------------------------------------------------------
PE77U / PX75U / PX77U / PZ700U / PZ750U
PD60U / PX6U / PX60U / PX600U
PD50U / PX50U / PX500U :


* Hold down the {VOL -} button ON THE PLASMA TV.
* Press the {RECALL} button 3 times on the remote.
* The Service Menu will be displayed.
* Use {1} {2} on remote to navigate main menu items.
* Use {3} {4} on remote to navigate sub-menu items.
* Use {VOL+} {VOL -} on remote to change item value.
* Write down all values before changing
Once a value is changed, THE CHANGE IS MADE.
* Power off to exit service mode and save
OK.

hello, here some help with this
hope this help below are adjustments
and values

How to enter into Service Mode
While pressing [VOLUME ( - )] button of the main unit, press [RECALL] button of the remote control three times within 2
seconds.
10.1.1. Key command
"1" button...Main items Selection in forward direction
"2" button...Main items Selection in reverse direction
"3" button...Sub items Selection in forward direction
"4" button...Sub items Selection in reverse direction
"VOL" button...Value of sub items change in forward direction ( + ), in reverse direction
Value is shown as a hexadecimal number.

·
Preset value differs depending on models.

·
After entering the adjustment mode, take note of the value in each item before starting adjustment.
Main item Sub item Sample Data Remark
ADJUST CONTRAST 000
COLOR 3F
TINT 03
SUB-BRT 800
WB-ADJ R-CUT 80
G-CUT 80
B-CUT 80
R-DRV E6
G-DRV F0
B-DRV FC
ALL-CUT 80
ALL-DRV FC
OPTION BOOT ROM Factory Preset
STBY-SET 00
Emergency OFF
CLK MODE 00
CLOCK 000
AGING RGBW
COUNT
ALL WHITE
ALL RED
ALL GREEN
ALL BLUE
ON/OFF
RAMP WHITE
RAMP RED
RAMP GREEN
RAMP BLUE
1% WINDOW
COLOR BAR
A-ZONE B-ZONE/4 TRIO
SCROLL
WHITE FLAME
RM-SET CODE A Fixed
SRV-TOOL - See next
10.1.3. How to exit
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control

good luck hope tis help.

PANASONIC: Panasonic TV's after 1996 can be set to "Serviceman Mode" with the following remote control sequence: First, select the SET-UP icon and select CABLE mode. Then, select the TIMER icon and set the SLEEP timer for 30 minutes. Next, press the ACTION button twice to get out of the menus. Now, change to channel 124. Then, adjust the volume to minimum (0). You're almost there - Hit the VOL down button on the TV itself (not on the remote) and a red "CHK" should appear in the upper corner. Now, if you press the ACTION and VOLUME DOWN buttons (again, on the TV, not the remote) you will toggle between AGING and SERVICEMAN modes. Select Serviceman mode. The POWER button on the remote control will select one of the five Serviceman Adjustment modes. The modes are: B - Serviceman VCJ SUB Adjustments. These include sub-tint, sub-color, sub-brightness, sub-contrast, colorkiller/ABL/gamma,audio and video adjustment, and vertical size. C - Serviceman VCJ Cut-off adjustments. These include Red, Green and Blue cut-off, red and blue drive, automatic fine tuning(AFT), RF AGC (RF gain control), horizontal center, beam limit,etc. S - Serviceman Options Adjustments. These involce the PIP and clock. M - Serviceman MTS (Stereo/SAP) adjustments. CHK - the mode you first entered. Normal picture and sound, lets you check things over and still have a hotkey into the service menu. There is one more adjustment that isn't in the five modes, it's global. When in either the yellow or red CHK mode, you can press RECALL on the remote control to enter the purity firld check mode. This lets you select a pure white, red, green, or blue screen. A good thing to walk away from if you just want to temporarily freak out the floor manager, but it will be fixed as soon as the TV is turned off. To get out of Serviceman mode, press ACTION and POWER on the remote simultaneously for at least 2 seconds. The TV will momentarily shut off and then comes back on. If this does not help you will most likely need to get the service manual as you should always have that anyway before ever attempting any serve mode adustments. Also do not forget to ALWAYS write down all of the values that you change incase a problem arises. Good Luck