Color Electronic Viewfinder System Adjustments; Evf Initial Data Input (1) - Sony DCR-TRV820 Service Manual

1-4. COLOR ELECTRONIC VIEWFINDER SYSTEM
ADJUSTMENTS
Note 1: The back light (fluorescent tube) is driven by a high volt-
age 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 dam-
ages caused by static electricity.
[Adjusting connector]
Most of the measuring points for adjusting the viewfinder system
are concentrated at FU-141 board CN259. Connect the measuring
instruments via the CPC-13 jig (J-6082-443-A). The following
table lists the pin numbers and signal names of CN259.
Pin No. Signal Name
1 SWP
2 AFC F0
3 BPF MONI
4 F0 ADJ RF IN
5 PB RF
6 REG GND
7 RF AGC OUT
8 VC RF SWP
9 EVF BL
10 EVF BL 4.6V
Screw driver (–)
Fig. 5-1-13
Pin No. Signal Name
11 VCO
12 EVF VG
13 DV RF SWP
14 RF IN
15 CAP FG
16 RF MON
17 TMS
18 TCK
19 TDO
20 TDI
FU-141 board
CN259
1
20
Cover

1. EVF Initial Data Input (1)

Mode
Signal
Adjustment Page
Adjustment Address
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: C, and input the data in the following table.
Note: To write in the non-volatile memory (EEPROM), press
the PAUSE button of the adjustment remote commander
each time to set the data.
3) Select page: 0, address: 01, and set data: 00.
Address Data
9B 4C
9C 00
9D A0
9E CE
9F 64
A0 24
A1 00
A2 80
A3 12
A4 0C
A5 25
A6 00
A7 08
A8 18
5-25
VTR stop
Arbitrary
C
9B to A8
Remark
Fixed data