Lcd Initial Data Input (2); Vco Adjustment (Pd-118 Board) - Sony DCR-TRV820 Service Manual

2. LCD Initial Data Input (2)

Mode VTR stop
Signal Arbitrary
Adjustment Page D
Adjustment Address A0 to AA, AC to B1
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 com-
mander each time to set the data.
3) Select page: 0, address: 01, and set data: 00.
Data
Address
TYPE S TYPE C
A0 7D
A1 A6
A2 80
A3 70
A4 80
A5 30
A6 00
A7 C0
A8 80
A9 80
AA 50
AC 33
AD 14
AE 9F
AF 1F
B0 FC
B1 FF
Remark
7D
Fixed data
A6
80 VCO adj.
VCO adj. (PAL model)
70
Fixed data (NTSC model)
80 V-COM adj.
20 RGB AMP adj.
00 Fixed data
80 COM AMP adj.
80
White balance adj.
80
30 Contrast adj.
33
13
9F Fixed data
1F
FC
FF

3. VCO Adjustment (PD-118 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 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: A2, 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: A2, 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 .
A2
5) Convert D to decimal notation, and obtain D
A2
(Refer to Table 5-4-1 "Hexdecimal-decimal conversion table"
of "5-4. Service Mode")
6) Calculate D ' using following equations (decimal calculation),
A3
convert it to a hexdecimal number, and obtain D
D ' = D ' – 23
A3 A2
Note 2: If D ' < 0, then D
A3
7) Select page: D, address: A3, set data D
PAUSE button of adjustment remote commander.
8) Select page: 0, address: 01, and set data: 00.
5-30
Camera
Arbitrary
Pin 8 of CN5502 (XHD OUT)
Frequency counter
D
A2 (NTSC model)
A2, A3 (PAL model)
f=15734 ± 30 Hz (NTSC model)
f=15625 ± 30 Hz (PAL model)
'.
A2
.
A3
= "00"
A3
, and then press the
A3