Evf Initial Data Input (2); Vco Adjustment (Vf-141 Board) - Sony DCR-TRV820 Service Manual

2. EVF Initial Data Input (2)

Mode VTR stop
Signal Arbitrary
Adjustment Page D
Adjustment Address 92 to 9F, B0, B2
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, 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
92 80 VCO adj.
VCO adj. (PAL model)
93 70
Fixed data (NTSC model)
94 26 Fixed data
95 A0 RGB AMP adj.
96 0F Fixed data
97 80
White balance adj.
98 80
99 30 Contrast adj.
9A 80
Fixed data
9B 90
9C D0
9D 10 Backlight consumption current adj.
9E 10
9F 1F
B0 FC Fixed data
B2 FF
Remark
5-26

3. VCO Adjustment (VF-141 board)

Set the VCO free-run frequency. If deviated, the EVF screen will
be blurred.
Mode Camera
Subject Arbitrary
Pin qa of CN259 (VCO) on FU-141
Measurement Point
board
Measuring Instrument Frequency counter
Adjustment Page D
92 (NTSC model)
Adjustment Address
92, 93 (PAL model)
f=15734 ± 30 Hz (NTSC model)
Specified Value
f=15625 ± 30 Hz (PAL model)
Note 1: NTSC model: DCR-TRV820/TRV820P
PAL model: DCR-TRV820E
Adjusting method (NTSC model):
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 92, change the data and set the VCO
frequency (f) to the specified value.
3) Press the PAUSE button of the adjustment remote commander.
4) Select page: 0, address: 01, and set data: 00.
Adjusting method (PAL model):
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 92, change the data, and set the VCO
frequency (f) to the specified value.
3) Press the PAUSE button of adjustment remote commander.
4) Read the adjustment data of step 2), and this data is named
D .
92
5) Convert D to decimal notation, and obtain D
92
(Refer to Table 5-4-1 "Hexdecimal-decimal conversion table"
of "5-4. Service Mode")
6) Calculate D ' using following equations (decimal calculation),
93
convert it to a hexdecimal number, and obtain D
D ' = D ' – 26
93 92
Note2: If D ' < 0, then D
93
7) Select page: D, address: 93, set data D
PAUSE button of adjustment remote commander.
8) Select page: 0, address: 01, and set data: 00.
'.
92
.
93
= "00"
93
, and then press the
93