Sony DCR-TRV120P, Service Manual, Page: 129 / 195

5-29
3. VCO Adjustment (PD-117 board)
Set the VCO free-run frequency. If deviated, the LCD screen will
be blurred.
Mode Camera
Subject Arbitrary
Measurement Point Pin
8
of CN5502 (XHD OUT)
Measuring Instrument Frequency counter
Adjustment Page D
Adjustment Address A2 (NTSC model)
A2, A3 (PAL model)
Specified Value f=15734 ± 30 Hz (NTSC model)
f=15625 ± 30 Hz (PAL model)
Note 1: NTSC model: DCR-TRV120/TRV120P
PAL model: DCR-TRV120E/TRV125E
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
A2
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
A3
’ using following equations (decimal calculation),
convert it to a hexdecimal number, and obtain D
A3
.
TYPE C model: D
A3
’ = D
A2
’ – 16
TYPE S 123 k model: D
A3
’ = D
A2
’ – 23
Note2:
If D
A3
’ < 0, then D
A2
= “00”
7) Select page: D, address: A3, set data D
A3
, and then press the
PAUSE button of adjustment remote commander.
8) Select page: 0, address: 01, and set data: 00.
2. LCD Initial Data Input (2)
Mode VTR stop
Signal Arbitrary
Adjustment Page D
Adjustment Address A0 to AA, AC to B1
Note: TYPE S 61 k model: DCR-TRV120/TRV120P
TYPE S 123 k model: DCR-TRV120E: AEP, UK, EE, NE,
RU/TRV125E
TYPE C model: DCR-TRV120E: E, HK, AUS, CN, JE
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.
Data
Address TYPE S
TYPE C
Remark
61 k 123 k
A0 78 78 78 Fixed data
A1 95 95 95
A2 80 80 80 VCO adj.
A3 70 70 70 VCO adj. (PAL model)
Fixed data (NTSC model)
A4 80 80 80 V-COM adj.
A5 30 30 20 RGB AMP adj.
A6 00 00 00 Fixed data
A7 C0 C0 80 COM AMP adj.
A8 80 80 80 White balance adj.
A9 80 80 80
AA 50 50 30 Contrast adj.
AC 14 33 0A Fixed data
AD 14 14 0E
AE 9F 9F 9F
AF 1F 1F 1F
B0 FC FC FC
B1 FF FF FF