Rec Y Current Adjustment (Vc-272 Board) - Sony Handycam Vision CCD-TRV107E Service Manual

CCD-TRV107E/TRV108E/TRV208E/TRV408E

5. REC Y Current Adjustment (VC-272 board)

Adjust the Y FM signal recording current.
Mode
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Note1: Insert a plug into the S VIDEO or the A/V jack.
Note2: Don't disconnect the DC power supply of the camcorder during
the following adjustments.
When the following symptom occurs, reset the data of D page to
the values written down.
1) The power is shut off so that unit cannot operate.
0.18 µ sec
VTR recording (SP mode)
No signal
REC RF (Pin 7 of CN713)
Oscilloscope
(20 MHz BW LIMIT: OFF)
F
62, 63
A = 280 ± 5mV
A
Fig. 5-3-8.
Adjusting method:
Order Page Address Data
1
2 0 01
3 D 14
4 D 14
5 D 15
6 D 15
7
8 E 9F
9 E 9F
10 F 69
11 F 69
12 2 01
13 6 63
14 F 63
15 F 63
16 F 63
17 F 62
18 6 63
19 2 01
20 F 69
21 E 9F
22 D 14
23 D 15
24 0 01
Note3: Use the REC buttons of the adjustment remote commander (with
the HOLD switch set in the OFF position).
5-36
Procedure
Set to the stop mode.
01 Set the data.
Write down the data.
26 Set the data, and press PAUSE
button.
Write down the data.
6F Set the data, and press PAUSE
button.
Set to VTR recording mode.
(Note3)
Write down the data.
06 Set the data, and press PAUSE
button.
Write down the data.
00 Set the data, and press PAUSE
button.
41 Set the data, and press PAUSE
button.
01 Set the data.
Change the data and set the Y signal
level (A) to the specified value.
Press PAUSE button.
Read the data, and this data is
named D .
63
D Set the data, and press PAUSE
63
button.
00 Set the data.
00 Set the data, and press PAUSE
button.
Set the data written down at step
10, and press PAUSE button.
Set the data written down at step
8, and press PAUSE button.
Set the data written down at step
3, and press PAUSE button.
Set the data written down at step
5, and press PAUSE button.
00 Set the data.