Panasonic TH-R42PV80KH Service Manual / Other ▷ View online
23
7.18. Remove the K-Board
1. Remove the S-Board. (See section 7.17.)
2. Unlock the cable clampers to free the cable.
3. Remove the screws (
2. Unlock the cable clampers to free the cable.
3. Remove the screws (
×2 ).
4. Disconnect the connectors (K1) and remove the K-Board.
7.19. Remove the Plasma panel sec-
tion from the Cabinet assy
(glass)
(glass)
1. Remove the stand brackets (left, right) fastening screw
(
×1
each).
2. Remove the cabinet assy and the plasma panel fastening
screws (
×7 ).
3. For leaving the plasma panel from the front frame, pull the
bottom of the cabinet assy forward, lift, and remove.
4. Remove the spacers and spacer rings (
×6 ).
24
Caution:
• Please confirm the installation plate of Spacer and Spacer
Ring when you exchange the Plasma Panel, and install
Spacer and Spacer Ring in an original installation place after
exchange the Plasma Panel.
Spacer and Spacer Ring in an original installation place after
exchange the Plasma Panel.
7.20. Replace the plasma panel (fin-
ished)
1. Place the new plasma panel (finished) on the flat surface
of the table (covered by a soft cloth), with the plasma
panel surface facing downward.
panel surface facing downward.
2. Attach the C1-Board and the C2-Board, connect the flexi-
ble cables (
×16) from the Plasma panel to the C1-Board
and the C2-Board, and fit the flexible cable holders.
3. Attach the Hooks (left, right) and fit the stand brackets (L,
R) to the new plasma panel.
4. Place the plasma panel section on the servicing stand.
5. Attach the cabinet assy and each P.C.Board and so on, to
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
*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.
25
8 Measurements and Adjustments
8.1.
Driver Set-up
8.1.1.
Item / Preparation
1. Input a white signal to plasma video input.
2. Set the picture controls as follows.
2. Set the picture controls as follows.
Picture menu: Dynamic
PNR: OFF
Aspect: 16:9
PNR: OFF
Aspect: 16:9
Caution
1. First perform Vsus adjustment.
2. Confirmation of Vscn voltage should be performed after
2. Confirmation of Vscn voltage should be performed after
confirmation of Vad adjustment.
When Vad=-149V, Voltage of Vscn is -4V ±4V.
When Vad=-149V, Voltage of Vscn is -4V ±4V.
8.1.2.
Adjustments
Adjust driver section voltages referring the panel data on the
panel data label.
Check or adjust the following voltages with the multimeter.
panel data label.
Check or adjust the following voltages with the multimeter.
*See the Panel label.
Name
Test Point
Voltage
Volume
Remarks
Vsus
TPVSUS
(SS)
(SS)
Vsus ± 2V
R628 (P)
*
Ve
TPVE (SS)
Ve ± 1V
VR16000 (SS) *
Vset
TPVSET
(SC)
(SC)
320V ± 7V
Fixed
Vad
TPVAD (SC) -149V ± 1V
VR16600 (SC)
Vscn
TPVSCN
(SC)
(SC)
Vad+145V ± 4V Fixed
Vda
TPVDA (SS) 75V ± 1V, -2V
Fixed
26
8.1.3.
P.C.B. (Printed Circuit Board) exchange
8.1.3.1.
Caution
1. To remove P.C.B. , wait 1 minute after power was off for discharge from electrolysis capacitors.
8.1.3.2.
Quick adjustment after P.C.B. exchange
Adjust the following voltages with the multimeter.
*See the Panel label.
Caution:
Caution:
Absolutely do not reduce Vsus below Ve not to damage the P.C.B.
8.1.4.
Adjustment Volume Location
8.1.5.
Test Point Location
P.C.B.
Name
Test Point
Voltage
Volume
Remarks
P Board
Vsus
TPVSUS (SS)
Vsus ± 2V
R628 (P)
*
SC Board
Vad
TPVAD (SC)
-105V ± 1V
VR16600 (SC)
SS Board
Ve
TPVE (SS)
Ve ± 1V
VR16000 (SS)
*
Click on the first or last page to see other TH-R42PV80KH service manuals if exist.