Panasonic TH-50PH11EK / TH-50PH11ES Service Manual ▷ View online
29
TH-50PH11EK / TH-50PH11ES
30. Remove the Rear Cover Hook Right and Rear Cover
Hook Left from the Plasma Panel.
31. Remove the 8 Spacers and Spacer Rings from the
Plasma Panel.
Caution:
• Please confirm the installation place of Rear Cover Hook
Right, Rear Cover Hook Left, Spacer and Spacer Ring
when you exchange the Plasma Panel, and install them
in an original installation place after exchanging the
Plasma Panel.
when you exchange the Plasma Panel, and install them
in an original installation place after exchanging the
Plasma Panel.
30
TH-50PH11EK / TH-50PH11ES
9 Measurements and
Adjustments
9.1.
Adjustment Procedure
9.1.1.
Driver Set-up
9.1.1.1.
Item / Preparation
1. Set Aging pattern (white pattern signal) by IIC mode.
2. Set the picture controls as follows.
2. Set the picture controls as follows.
Picture menu: Standard
Picture: +25
Aspect: Full
Picture: +25
Aspect: Full
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.
9.1.1.2.
Adjustments
Adjust driver section voltages. (Refer to the panel data on the
Panel Label).
Check or adjust the following voltages with the multimeter.
Panel 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
VR561 (P)
*
Ve
TPVE (SS)
Ve ± 1V
VR16000
(SS)
(SS)
*
Vset
TPVSET
(SC)
(SC)
320V + 7V, -
9V
9V
Fixed
Vad
TPVAD (SC) -149V ± 1V
VR16600
(SC)
(SC)
Vscn
TPVSCN
(SC)
(SC)
Vad+145V ±
4V
4V
Fixed
Vda
TPVDA (SS) 75V + 1V, -2V Fixed
PFC
C446 (+)(-)
396V ± 0.5V
R443 (P)
31
TH-50PH11EK / TH-50PH11ES
9.1.2.
Initialization Pulse Adjust
1. Set Aging pattern (white pattern signal) by IIC mode.
2. Set the picture controls as follows.
2. Set the picture controls as follows.
Picture menu: Standard
Picture: +25
Aspect: Full
Picture: +25
Aspect: Full
3. Connect Oscilloscope to TPSC1 and adjust VR6602 for 210 ± 10V.
9.1.3.
P.C.B. (Print Circuit Board) exchange
9.1.3.1.
Caution
1. To remove P.C.B., wait 1 minute after power was off for discharge from electrolysis capacitors.
9.1.3.2.
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 voltage below Ve not to damage the P.C.B.
Test Point
Volume
Level
TPSC1 (SC)
VR16602 (SC)
210 ± 10V
at 100
at 100
µs
period on the down slope.
P.C.B.
Name
Test Point
Voltage
Volume
Remarks
P Board
Vsus
TPVSUS (SS)
Vsus ± 2V
VR561 (P)
*
PFC
C446 (+) (-) (P)
396V ± 0.5V
R443 (P)
SC Board
Vad
TPVAD (SC)
-149V ± 1V
VR16600 (SC)
SS Board
Ve
TPVE (SS)
Ve ± 1V
VR16000 (SS)
*
D, DS, DN Board
White balance, Pedestal and Sub brightness for NTSC, PAL, HD, PC and 625i signals
DN Board
Set Market Select Number to correct destination by MS mode. (See chap. 6.1.4)
32
TH-50PH11EK / TH-50PH11ES
9.1.4.
Adjustment Volume Location
9.1.5.
Test Point Location
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