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17

A

γ

Adjusting Procedure:
1. Connect a digital voltmeter to the TP65 on the MONITOR

board.

2. Adjust the RV212 so that the reading of digital voltmeter is

2.51 

± 0.04 V.

Adjusting Procedure:
1. Connect an oscilloscope to the TP77 on the MONITOR board.
2. Adjust the RV208 so that the A level of the waveform on the

oscilloscope is 4.80 

± 0.04 V.

+
–

degital

voltmeter

PAL pattern

generator

TP152 (GND)

TP65

set

(XAV-7W)

connection box

(XA-114)

INPUT1

VIDEO jack

+
–

PAL pattern

generator

TP152 (GND)

TP77

set

(XAV-7W)

connection box

(XA-114)

osclloscope

INPUT1

VIDEO jack

Adjusting Procedure:
1. Connect an oscilloscope to the TP77 on the MONITOR board.
2. Adjust the RV201 so that the B level of the waveform on the

oscilloscope is 4.20 

± 0.04 V.

Adjusting Procedure:
1. Connect an oscilloscope to the TP108 on the MONITOR board.

– V COM ADJUSTMENT –
2. Adjust the RV210 so that the C level of the waveform on the

oscilloscope is 8.40 

± 0.05 V.

– V COM CENTER ADJUSTMENT –
3. Adjust the RV211 so that the D level of the waveform on the

oscilloscope is –2.40 

± 0.05 V.

B

+
–

PAL pattern

generator

TP152 (GND)

TP77

set

(XAV-7W)

connection box

(XA-114)

osclloscope

INPUT1

VIDEO jack

+
–

PAL pattern

generator

TP152 (GND)

TP108

set

(XAV-7W)

connection box

(XA-114)

osclloscope

INPUT1

VIDEO jack

C

0V

D

18

Adjusting Procedure:
1. Place the monitor in the no signal input status.
2. Connect a frequency counter to the TP70 on the MONITOR

board.

3. Press the 

[SOURCE]

 button to activate the video mode.

4. Adjust the RV402 so that the reading of frequency counter is

15.37 

± 0.02 kHz.

Adjusting Procedure:
1. Enter the monoscope (PAL) signal from the pattern generator.
2. Press the 

[SOURCE]

 button to activate the video mode so as

to display the monoscope on the monitor screen.

3. Adjust the RV401 so that the monoscope on the monitor screen

is horizontally symmetric.

+
–

TP152 (GND)

TP70

set

(XAV-7W)

frequency

counter

PAL pattern

generator

INPUT1

VIDEO jack

set

(XAV-7W)

connection box

(XA-114)

Adjusting Procedure:
1. Connect an oscilloscope to the TP78 on the MONITOR board.
2. Adjust the RV209 so that the E level of the waveform on the

oscilloscope is 4.00 

± 0.05 V.

Adjusting Procedure:
1. Connect an oscilloscope to the TP76 on the MONITOR board.
2. Adjust the RV207 so that the F level of the waveform on the

oscilloscope is 4.40 

± 0.05 V.

Enter color bar from the pattern generator for PAL signal system
to check that there is no problem in the liquid crystal display of
the monitor in signal system.

+
–

PAL pattern

generator

TP152 (GND)

TP78

set

(XAV-7W)

connection box

(XA-114)

osclloscope

INPUT1

VIDEO jack

E

0V

PAL pattern

generator

TP152 (GND)

TP76

set

(XAV-7W)

connection box

(XA-114)

–

osclloscope

INPUT1

VIDEO jack

+

F

0V

19

TP108

TP70

TP154

TP76

TP78

TP57

TP58

TP88

TP64

TP77

TP65

TP67

TP152
(GND)

RV503

5V Adjustment

RV900

DC/DC Frequency Adjustment

RV401

H Center Adjustment

RV402

Free-run Frequency Adjustment

RV208

RGB AMP

Adjustment

RV210

Bright

Adjustment

RV207

R Sub Bright

Adjustment

RV501

7.5V

Adjustment

RV602

Inverter Voltage

Adjustment

RV211

V COM Center

Adjustment

RV212

γ

0

Adjustment

RV213

γ

2

Adjustment

RV209

B Sub Bright Adjustment

RV210

V COM Adjustment

20

MEMO