Panasonic TH-50PV80D - Measurements and Adjustments; Adjustment Procedure

25
8 Measurements and Adjustments
8.1. Adjustment Procedure
8.1.1. Driver Set-up
8.1.1.1. Item / Preparation
1. Input a white signal to plasma video input.
2. Set the picture controls as follows.
Picture menu: Dynamic
PNR: OFF
Aspect: 16:9
Caution
1. First perform Vsus adjustment.
2. Confirmation of Vscn voltage should be performed after
confirmation of Vad adjustment.
When Vad=-149V, Voltage of Vscn is -4V ±4V.
8.1.1.2. Adjustments
Adjust driver section voltages referring the panel data on the
panel data label.
Check or adjust the following voltages with the multimeter.
*See the Panel label.
8.1.2. P.C.B. (Printed Circuit Board) exchange
8.1.2.1. Caution
1. To remove P.C.B. , wait 1 minute after power was off for discharge from electrolysis capacitors.
8.1.2.2. Quick adjustment after P.C.B. exchange
Adjust the following voltages with the multimeter.
*See the Panel label.
Caution:
Absolutely do not reduce Vsus below Ve not to damage the P.C.B.
Name Test Point Voltage Volume Remarks
Vsus TPVSUS
(SS)
Vsus ± 2V VR561 (P) *
Ve TPVE (SS) Ve ± 1V VR16000
(SS)
*
Vset TPVSET
(SC)
320V ± 7V Fixed
Vad TPVAD (SC) -149V ± 1V VR16600
(SC)
Vscn TPVSCN
(SC)
Vad+145V ± 4V Fixed
Vda TPVDA (SS) 75V + 1V, -2V Fixed
P.C.B. Name Test Point Voltage Volume Remarks
P Board Vsus TPVSUS (SS) Vsus ± 2V VR561 (P) *
SC Board Vad TPVAD (SC) -149V ± 1V VR16600 (SC)
SS Board Ve TPVE (SS) Ve ± 1V VR16000 (SS) *