Sony DCR-TRV10 Service Manual - Page 117

LCD SYSTEM ADJUSTMENT, Adjusting connector], Pin No., Signal Name, VCO Adjustment PD-110 board

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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. [Adjusting connector] Most of the measuring points for adjusting the LCD system are concentrated in CN2904 of the VC-217 board. Connect the Measuring Instruments via the CPC-8 jig (J-6082-388A). The following table shows the Pin No. and signal name of CN2904. Pin No. Signal Name Pin No. Signal Name 1 LANC SIG 2 EVF BL + 3 EVF BL - 4 EVF VG 5 EVF VCO 6 GND 7 PD VG 8 PD VCO 9 H START 10 XHD/PSIG 11 PANEL COM 12 TMS 13 TCK 14 TDI 15 TDO 16 GND 17 SWP 18 RF IN/LANC JACK IN 19 GND 20 RF MON Table 5-1-8. 1. VCO Adjustment (PD-110 board) Set the VCO free-run frequency. If deviated, the LCD screen will be blurred. Mode VTR stop Signal Measurement Point arbitrary Pin 9 of CN2904 (H START) on VC-217 board Measuring Instrument Frequency counter Adjustment Page D Adjustment Address 84 Specified Value f = 15734 ± 30Hz (NTSC) f = 15625 ± 30Hz (PAL) Adjusting method: 1) Select page: 0, address: 01, and set data: 01. 2) Select page: 3, address: 0C, set data: 20, and press the PAUSE button of the adjustment remote commander. 3) Select page: 3, address: 22, set data: 03, and press the PAUSE button of the adjustment remote commander. 4) Select page: D, address: 84, change the data and set the frequency (f) to the specified value. 5) Press the PAUSE button of the adjustment remote commander. 6) Select page: 3, address: 22, set data: 00, and press the PAUSE button of the adjustment remote commander. 7) Select page: 3, address: 0C, set data: 00, and press the PAUSE button of the adjustment remote commander. 8) Select page: 0, address: 01, and set data: 00. CN2904 1 2 19 20 Remove the CPC cover Fig. 5-1-17. 5-31

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5-31
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.
[Adjusting connector]
Most of the measuring points for adjusting the LCD system are
concentrated in CN2904 of the VC-217 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 CN2904.
Pin No.
1
3
5
7
9
11
13
15
17
19
Signal Name
LANC SIG
EVF BL –
EVF VCO
PD VG
H START
PANEL COM
TCK
TDO
SWP
GND
Pin No.
2
4
6
8
10
12
14
16
18
20
Signal Name
EVF BL +
EVF VG
GND
PD VCO
XHD/PSIG
TMS
TDI
GND
RF IN/LANC JACK IN
RF MON
Table 5-1-8.
1. VCO Adjustment (PD-110 board)
Set the VCO free-run frequency. If deviated, the LCD screen will
be blurred.
Mode
VTR stop
Signal
arbitrary
Measurement Point
Pin
9
of CN2904 (H START) on
VC-217 board
Measuring Instrument
Frequency counter
Adjustment Page
D
Adjustment Address
84
Specified Value
f = 15734 ± 30Hz (NTSC)
f = 15625 ± 30Hz (PAL)
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 3, address: 0C, set data: 20, and press the PAUSE
button of the adjustment remote commander.
3)
Select page: 3, address: 22, set data: 03, and press the PAUSE
button of the adjustment remote commander.
4)
Select page: D, address: 84, change the data and set the
frequency (f) to the specified value.
5)
Press the PAUSE button of the adjustment remote commander.
6)
Select page: 3, address: 22, set data: 00, and press the PAUSE
button of the adjustment remote commander.
7)
Select page: 3, address: 0C, set data: 00, and press the PAUSE
button of the adjustment remote commander.
8)
Select page: 0, address: 01, and set data: 00.
Fig. 5-1-17.
CN2904
1
2
19
20
Remove the CPC cover