Lcd System Adjustment; (Dcr-Trv11/Trv11E/Trv20); Vco Adjustment (Pd-123 Board) - Sony DCR-TRV6 Service Manual

1-5.

LCD SYSTEM ADJUSTMENT

Note 1: 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.
Note 2: When replacing the LCD unit, be careful to prevent damages
caused by static electricity.
Note 3: Set the LCD BRIGHT to the center.
Set the LCD COLOR (Menu display) to the center.
Note 4: PD-123 board: DCR-TRV11/TRV11E/TRV20
PD-124 board: DCR-TRV6/TRV6E/TRV20E
VC-240 board: DCR-TRV20/TRV20E
VC-241 board: DCR-TRV6/TRV6E/TRV11/TRV11E
[Adjusting connector]
Most of the measuring points for adjusting the LCD system are
concentrated in CN009 of the VC-240/241 board.
Connect the Measuring Instruments via the CPC-8 jig (J-6082-388-
A).
The following table shows the Pin No. and signal name of CN009.
Pin No. Signal Name
1 LANC SIG
3 EVF BL –
5 EVF VCO
7 PANEL VG
9 H START
11 PANEL COM
13 TCK
15 JIG TDO
17 SWP
19 GND
Table. 5-1-13.
CN009
1 2
19 20
Remove the CPC lid
Fig. 5-1-17.
Pin No. Signal Name
2 EVF BL +
4 EVF VG
6 GND
8 PD VCO
10 XHD/PSIG
12 TMS
14 JIG TDI
16 GND
18 RF IN/LANC JACK IN
20 RF MON
1-5-1. LCD SYSTEM ADJUSTMENT

(DCR-TRV11/TRV11E/TRV20)

1. VCO Adjustment (PD-123 board)

Set the VCO free-run frequency. If deviated, the LCD screen will
be blurred.
Mode
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Note: NTSC: DCR-TRV11/TRV20
PAL: DCR-TRV11E
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: A2, change the data and set the VCO
frequency (f) to the specified value.
Note: The VCO adjustment mode is set up automatically, so the LCD
screen falls into the disorder.
3) Press the PAUSE button of the adjustment remote commander.
4) Select page: D, address: A3, set the same data as page: D,
address: A2, and press the PAUSE button.
5) Select page: 0, address: 01, and set data: 00.
5-36
Camera
Arbitrary
Pin 9 of CN009 (H START) of
VC-240/241 board
Frequency counter
D
A2, A3
f = 15734 ± 30Hz (NTSC)
f = 15625 ± 30Hz (PAL)