10.3. P.C.B. (Printed Circuit Board) exchange
10.3.1.
Caution
1. To remove P.C.B. , wait 1 minute after power was off for discharge from electrolysis capacitors.
10.3.2.
Quick adjustment after P.C.B. exchange
P.C.B.
Name
Test Point
Voltage
Volume
Remarks
P Board
Vsus
TPVSUS (SS)
Vsus* ± 1V
VR641 (P)
Vda
TPVDA (SS)
75V ± 1V
VR665 (P)
SC Board
Vad
TPVAD (SC)
-85V ± 1V
R6477 (SC)
Vbk
TPVBK
140V ± 1V
R6670 (SC)
Vset
TPVSET (SC)
220V ± 6V
---
Vscn
TPVSCN (SC)
Vad + 118 ± 2V
---
SS Board
Ve
TPVE (SS)
Ve* ± 1V
R6770 (SS)
D, DG Board
White blance, Pedestal and Sub brightness for NTSC, PAL, HD, PC and 625i signals
*See the Panel label.
10.4. Adjustment Volume Location
10.5. Test Point Location
26
TH-50PX20U-P
Summary of Contents for TH-50PX20U/P
Page 4: ...1 Applicable signals 4 TH 50PX20U P ...
Page 9: ...6 Location of Lead Wiring 6 1 Lead of Wiring 1 9 TH 50PX20U P ...
Page 10: ...6 2 Lead of Wiring 2 10 TH 50PX20U P ...
Page 11: ...6 3 Lead of Wiring 3 11 TH 50PX20U P ...
Page 12: ...6 4 Lead of Wiring 4 12 TH 50PX20U P ...
Page 13: ...6 5 Lead of Wiring 5 13 TH 50PX20U P ...
Page 14: ...6 6 Lead of Wiring 6 14 TH 50PX20U P ...
Page 23: ...9 4 IIC mode structure following items value is sample data 23 TH 50PX20U P ...
Page 32: ...32 TH 50PX20U P ...
Page 64: ...TH 50PX20U P 64 ...
Page 146: ...TH 50PX20U P 146 ...
Page 147: ...15 Parts Location 15 1 Parts Location 1 147 TH 50PX20U P ...
Page 148: ...15 2 Parts Location 2 148 TH 50PX20U P ...
Page 149: ...15 3 Parts Location 3 149 TH 50PX20U P ...
Page 150: ...15 4 Parts Location 4 150 TH 50PX20U P ...
Page 151: ...15 5 Parts Location 5 151 TH 50PX20U P ...
Page 154: ...17 Replacement Parts List 17 1 Replacement Parts List Notes 154 TH 50PX20U P ...