Service Mode (Electronic Controls); Quick Entry To Service Mode; To Toggle Between Aging And Service Modes; Exiting The Service Mode - Panasonic PT-47WX52F Service Manual

Service 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 service 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
service mode may be used as a quick
guide.

Quick entry to service mode:

When minor adjustments need to be done to the
electronic controls, the method of entering the service
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 SERVICE
MODE, set TIMER back to NO.
To toggle between aging and service
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 service
mode and yellow "CHK" for Aging.
7. Press POWER on the remote control to display
the service adjustment modes menu, select
adjustment by pressing the VOL right/left buttons
and CH up/down buttons on the remote and
ACTION to enter the adjustment.
Service Manual
the way through and
the service
- 34 -
480I 480P
4:3 16:9
MODE
MTSIN SEPAL
MTS
CLOCK CLOCK
VIDEO COLOR B-Y_G
BRIGHT CONT
R DR B DR
H POS H WID
HDEF
EWTRA
H CORR
VSIZE VLIN
VDEF
VSYM
VCORR
MUTE COARS
CONV
DAF H-PAR V-SAW
OTHER ACL HHS
Figure 60. Service mode menu adjustments.
Note: Some adjustments are available only
in some modes (480i, 480p, 1080i); it
is needed to apply the format; For
some adjustments is required to
perform adjustment for each format;
convergence
perform for 480i-p (same for interlace
& progressive), 1080i and ZOOM 480i.
A 1080i, 480p, 480i pattern can be
obtained from Panasonic's TU-DST51
set-top box DTV decoder.

Exiting the service mode:

This PTV goes out from service mode when it is
unpluged or turned OFF. To exit the service mode, turn
the TV OFF or unplug the PTV from AC.
Other method
Press ACTION and POWER on the receiver
simultaneously for at least 2 seconds.
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 when
exited by pressing ACTION and POWER on receiver.
IMPORTANT NOTE:
Always check that the PTV exits
the service mode.

To check colors:

Press RECALL on the remote control when in service
mode (red "CHK" is displayed) to enter the purity field
check mode.
NORMAL
SCREEN
Press RECALL again to select desired field.
BLUE GRN.
SCREEN SCREEN
Figure 61. Colors check.
1080I
HX WX
DW
SEPAH
TINT R-Y_A
CUT R CUT B
C_OFF
I-ABL
PCC EWCOR
V-S V-I
FINE
V-PAR
W-POS LIMIT
adjustment must be
RED WHITE
SCREEN SCREEN