Panasonic PT- 56WX51CE, Руководство по обслуживанию

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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 the way through and
understand the following procedure for
Entering/Exiting the Serviceman
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.
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.
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;
Perform convergence adjustment for
all formats (480i, 480p, 1080i “aspect
16:9 & 4:3”), a 480i, 480p, 1080i test
pattern can be obtained from
Panasonic
TU-DST51A (Set-top box).
Exiting the Serviceman Mode:
Press Action and Power on the Receiver
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.
To Check Purity:
Press Recall on the Remote Control when in
Serviceman Mode (red “CHK” is displayed) to enter the
Purity Field Check Mode.
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 “CHK” for Aging.
MODE
480I 480P 1080I
4:3 16:9 DW
MTS
MTSIN SEPAL SEPAH
CLOCK CLOCK
VIDEO
COLOR
BRIGHT
TINT
CONT
B-Y_G R-Y_A
CUT R CUT B
I-ABL
C_OFF
R DR B DR
HDEF
VLIN VSIZE
H POS H WID
H CORR
VCORR
PCC EWCOR
EWTRA
VDEF
CONV MUTE COARSE FINE
VSYM
V-S V-I
DAF
OTHER
H-PAR
ACL V-PAR V-SAW
Figure 54. Serviceman Mode Menu Adjustments.
IMPORTANT NOTE:
Always Exit the Serviceman Mode
Following Adjustments.
Press Recall again to select desired field.
NORMAL
SCREEN
WHITE
SCREEN
RED
SCREEN
GRN.
SCREEN
BLUE
SCREEN
Figure 55. Purity Check Field Mode.