DCR-PC2E, DCR-PC3, DCR-PC3E - Sony Movie Service Manual (repair manual). Page 113

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The back light (fluorescent tube) is driven by a high voltage AC
power supply. Therefore, do not touch the back light holder to
avoid electrical shock.

When replacing the LCD unit, be careful to prevent damages
caused by static electricity.

Set the function settings of the touch panel as follow.
PANEL BRIGHT .............................................................. Center
PANEL COLOR (Menu setting) ....................................... Center

Most of the measuring points for adjusting the LCD system are
concentrated in CN8201 of the PD-112 board.
The following table shows the Pin No. and signal name of CN8201.

Table 5-1-7

Set the VCO free-run frequency. If deviated, the LCD screen will
be blurred.

Mode

VTR stop

Signal

No signal

Measurement Point

Pin 5 of CN8201 (VCO CENT)

Measuring Instrument

Oscilloscope (DC range)

Adjustment Page

D

Adjustment Address

84

Specified Value

A = 1.8 ± 0.1V

Adjusting method:
1)

Select page: 0, address: 01, and set data: 01.

2)

Check the GND level of the oscilloscope.

3)

Select page: D, address: 84, change the data and set the PCO
output voltage (A) to the specified value.

4)

Press the PAUSE button.

5)

Select page: 0, address: 01, and set data: 00.

H

A

GND level
(0Vdc)

1

2

3

4

5

VG

V COM

GND

PSIG

VCO CENT

Fig. 5-1-16

CN8201

5

1