Measurements And Adjustments; Voltage Chart Of P-Board; Voltage Chart Of A-Board; Picture Level Adjustment (Rf) - Panasonic TC-L37U22 Service Manual

8 Measurements and Adjustments

8.1.

Voltage chart of P-board

8.2.

Voltage chart of A-board

8.3.

Picture level adjustment (RF)

Instrument Name
1. REMOTE TRANSMITTER
2. Ex. Signal (Sprit color bar)
Adjustment or Inspection Procedure
<procedure>
1. Receive the Sprit color bar.
(Screen mode: ZOOM or FULL Picture mode: DYNAMIC AI: OFF AI Picture: OFF)
*BACK LIGHT +30
<Inspection>
1. Enter Service mode, and select MAIN_ADJ PICTURE.
Volume UP/DOWN key makes GAIN displayed under PICTURE to set.
Pushing the remote controller [OK] key for about 3 seconds, GAIN is suited
to the adjustment value automatically.
VOLTAGE TEST POINT
17V TP7952, TP7953
DTV12V TP7954, TP7955
TUNER6V TP7956
VOLTAGE TEST POINT
STB3.3V TP4716
SUB5V TP4724
SOUND15V TP2765
5VS TP2768
SUB6V TP2767
TCON13.7V TP7019
TCON2.5V TP4826
TCON31V TP7013
TCON-6V TP7014
(The Sprit Color Bar Pattern)
25
SPECIFICATION
(Reception state)
18 ± 2 V
12.2 ± 0.6 V
6.1 ± 0.3 V
SPECIFICATION
(Reception state)
3.3 ± 0.16 V
5 ± 0.25 V
18 ± 2 V
6.1 ± 0.3 V
6.1 ± 0.3 V
12.5 ± 2 V
2.5 ± 0.12 V
31 ± 3.1 V
-5.7 ± 0.6 V
Remarks
Remarks