Panasonic TX-P50C3E / TX-P50C3J / TX-PR50C3 Service Manual ▷ View online
25
8.13. Remove the Plasma panel sec-
tion from the Cabinet assy
1. Remove the Plasma panel fastening screws (
×4 )
and
remove the Cabinet assy.
2. For leaving the Cabinet assy from the Plasma panel, pull
the bottom of the Cabinet assy forward, lift, and remove.
8.14. Remove the Glass holders
1. Remove the Cabinet assy. (See section 8.13.)
2. Remove the screws (
2. Remove the screws (
×7 ).
3. Remove the Glass holder top.
4. Remove the screws (
4. Remove the screws (
×7 ).
5. Remove the Glass holder bottom.
6. Remove the screws (
6. Remove the screws (
×4 ).
7. Remove the Glass holder side (L, R).
8.15. Remove the K-Board
1. Remove the Glass holder bottom. (See section 8.14.)
2. Remove the claw (
2. Remove the claw (
×1 ).
3. Disconnect the connector (K1) and Remove the K-Board
from LED Panel.
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8.16. Replace the Plasma panel
Caution:
A new Plasma panel itself without Hanger metals is
fragile.
To avoid the damage to new Plasma panel, carry a new
Plasma panel taking hold of the Hanger metals after
assembling the Hanger metals and the Stand bracket.
fragile.
To avoid the damage to new Plasma panel, carry a new
Plasma panel taking hold of the Hanger metals after
assembling the Hanger metals and the Stand bracket.
1. Place a carton box packed a new Plasma panel on the
flat surface of the work bench.
2. Open a box and without taking a new Plasma panel;
Attach the C1-Board and the C2-Board, connect the flexi-
ble cables from the Plasma panel to the C1-Board and
the C2-Board, and fit the Flexible cable holders.
ble cables from the Plasma panel to the C1-Board and
the C2-Board, and fit the Flexible cable holders.
3. Attach the Hanger metals and the Stand bracket to the
new Plasma panel.
4. Place the Plasma panel on the servicing stand taking hold
of the Hanger metals.
5. Attach the Cabinet assy and each P.C.Board and so on,
to the new Plasma panel.
*When fitting the Cabinet assy, be careful not to allow any
debris, dust or handling residue to remain between the
Front glass and Plasma panel.
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9 Measurements and Adjustments
9.1.
Adjustment
9.1.1.
Vsus selection
Caution:
When Plasma panel or A-board is replaced, Vsus should be set to LOW or HIGH.
Procedure
1. Go into main item [VSUS] in Service Mode. LOW or HIGH will be displayed.
2. Press [OK] button to go to TEST stage.
2. Press [OK] button to go to TEST stage.
White pattern without On-Screen Display will be displayed during TEST and CONF stage. Press [5] button to display the
On-Screen Display.
On-Screen Display.
3. Press [VOL (-)] button to set to LOW.
4. In LOW setting
4. In LOW setting
a. If no several dead pixel is visible remarkably in white pattern, press [3] button to go to CONF stage.
b. If the several dead pixels are visible remarkably in white pattern, Set to HIGH by press [VOL (+)] button. Press [3] button
b. If the several dead pixels are visible remarkably in white pattern, Set to HIGH by press [VOL (+)] button. Press [3] button
to go to CONF stage if the symptom is improved.
5. Press [OK] button in CONF stage to store LOW or HIGH.
6. Exit Service Mode by pressing [Power] button.
6. Exit Service Mode by pressing [Power] button.
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9.1.2.
Sub-Contrast adjustment
Name of measuring instrument
Connection
Remarks
RF generator
Base Band signal generator
HD signal generator
Base Band signal generator
HD signal generator
Steps
Remarks
Connect IIC cable (bus controller-cable) after banner OSD appear.
And after SRQ-L, begin an adjustment 2 seconds later.
And after SRQ-L, begin an adjustment 2 seconds later.
Adjustment of TV (RF system)
Note:
In adjustment, you must setting to modulation of signal at 90%.
1. Receive a RF PAL 100% Full White or Split Colour bar shown as below.
2. Goes into service mode.
3. Push a [ 1 ] or [ 2 ] key, and goes into adjustment mode for [ CONTRAST ].
3. Push a [ 1 ] or [ 2 ] key, and goes into adjustment mode for [ CONTRAST ].
Adjustment
1. The colour key yellow button of remote control is pushed.
2. The OSD character of sub-contrast becomes red.
2. The OSD character of sub-contrast becomes red.
(Inside under automatic adjustment)
3. The OSD character of sub-contrast returns to black.
When [NG] is displayed, adjustment failure.
4. End.
Note:
Sub-contrast adjustment is unadjusted
for AV/ HD input.
But, when needing the adjustment cho-
sen manually, please refer to [ alterna-
tive method ].
for AV/ HD input.
But, when needing the adjustment cho-
sen manually, please refer to [ alterna-
tive method ].
Steps
Remarks
Another procedure
Connect IIC cable (bus controller-cable) after banner OSD appear.
And after SRQ-L, begin an adjustment 2 seconds later.
And after SRQ-L, begin an adjustment 2 seconds later.
Adjustment of AV system
1. PAL 100% Full White or Split Colour bar receive AV1(or AV2), shown as below.
2. Goes into service mode.
3. Push [ 1 ] or [ 2 ] key, and goes into adjustment mode for [ Contrast ].
3. Push [ 1 ] or [ 2 ] key, and goes into adjustment mode for [ Contrast ].
Adjustment
1. The colour key yellow button of remote control is pushed.
2. The OSD character of sub-contrast becomes red.
2. The OSD character of sub-contrast becomes red.
(Inside under automatic adjustment)
3. The OSD character of sub-contrast returns to black.
When [NG] is displayed, adjustment failure.
4. End.
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