Serviceman Mode (Electronic Controls); Quick Entry To Serviceman Mode; To Toggle Between Aging And Serviceman Modes; Exiting The Serviceman Mode - Panasonic CT-32HX40B Service Manual

Serviceman Mode (Electronic Controls)

This Receiver has electronic technology using the I²C
Bus Concept. It performs as a control function and it
replaces many mechanical controls. Instead of
adjusting mechanical controls individually, many of the
control functions are now performed by using "On
Screen Display Menu". (The Serviceman Adjustment
Mode.)
Note: It is suggested that the technician
reads all
understand the following procedure for
Entering/Exiting
Adjustment Mode; then proceed with
the instructions working with the
Receiver. When becoming familiar
with the procedure, the Flow Chart for
Serviceman Mode may be used as a
quick guide.

Quick Entry to Serviceman Mode:

When minor adjustments need to be done to the
electronic controls, the method of Entering the
serviceman Mode without removal of the cabinet back
is as follows using the Remote Control:
1. Select SET-UP icon and select CABLE mode.
2. Select TIMER icon and set SLEEP time for 30 Min.
3. Press "ACTION" twice to exit menus.
4. Tune to the Channel 124.
5. Adjust VOLUME to minimum (0).
6. Press VOL (decrease) on Receiver. Red
"CHK" appears in upper corner.
Note: After Receiver is set into SERVICEMAN
mode, set TIMER back to NO.
To toggle between Aging and
Serviceman modes:
While the "CHK" is displayed on the left top corner
of the CRT, pressing "ACTION" and "VOL" UP on
the TV simultaneously will toggle between the
modes. Red "CHK" for Serviceman and yellow
7. Press Power on the Remote Control to display
the Serviceman Adjustment Modes menu, select
adjustment by pressing the volume right/left
buttons and channel up/down buttons on the
remote and ACTION to enter the adjustment.
the way through and
the Serviceman
480I
4:3
MODE
MTSIN SEPAL
MTS
CLOCK CLOCK
COLOR BRIGHT TINT
VIDEO
B-Y_G
BRT
Y DRV UVDRV
SUB
HDEF
H LIN
PCCHG PCCLG PCCHS PCCLS
TOPG
TRAP
VDEF V RAS
DAF HDAFC VDAFG
Figure 20. Serviceman Mode Menu Adjustments.
Note: Some adjustments are available only
in some modes (480i, 480p, 1080i); it
is needed to apply the format.

Exiting the Serviceman Mode:

Press Action and
simultaneously for at least 2 seconds.
THE RECEIVER EXITS SERVICEMAN MODE.
The Receiver momentarily shuts off; then comes back
on tuned to channel 3 with a preset level of sound.
Any programmed channels, channels caption data and
some others user defined settings will be erased.
IMPORTANT NOTE:
Always Exit the Serviceman Mode
Following Adjustments.

To Check Purity:

Press Recall on the Remote Control when in
Serviceman Mode (red "CHK" is displayed) to enter the
Purity Field Check Mode.
Press Recall again to select desired field.
BLUE GRN.
SCREEN SCREEN
Figure 21. Purity Check Field Mode.
Helpful Hints
Entering Serviceman Mode (Open-Back
Method)
• While the Receiver is connected and operating in
Normal Mode, momentarily short test point FA1 to
Cold Ground (
The Receiver enters the Aging Mode .
Yellow letters "CHK" appear in the upper left corner of
the screen.
(The Volume, Up/Down will adjust rapidly).
- 19 -
480P 1080I
16:9 DW
SEPAH
CONT
CUT R CUT B
CUT G
R DR B DR
H WID PCC
H POS
TOPSL BTMSL
BTMG
PARA SIDE
VEAMP V-C V-S
Power on the Receiver
NORMAL
SCREEN
RED WHITE
SCREEN SCREEN
) (A-Board).