Read Sony DCR-TRV340 Service Manual online
5-44
DCR-TRV340
4-3. APC & AEQ Adjustment (VC-276 board)
Mode
Playback
Signal
Recorded signal at “Preparations
before adjustments”
before adjustments”
Measurement Point
Pin qh of CN1108 (RF MON) (Note 1)
Ext. trigger: Pin qd of CN1108 (RF
SWP)
Ext. trigger: Pin qd of CN1108 (RF
SWP)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
18, 19, 1B, 1C, 21, 2C
Specified Value
The data of page: 3, address: 03 is “00”
Note 1:
Connect a 75
Ω
resistor between Pin qh and Pin w; (GND) of
CN1108.
75
75
Ω
resistor (Parts code: 1-247-804-11)
Note 2:
The “AGC Center Level Adjustment” must have already been
completed before starting this adjustment.
completed before starting this adjustment.
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
C
18
20
Set the data, and press PAUSE
button.
button.
3
C
19
20
Set the data, and press PAUSE
button.
button.
4
C
1B
25
Set the data, and press PAUSE
button.
button.
5
C
1C
25
Set the data, and press PAUSE
button.
button.
6
C
21
CA
Set the data, and press PAUSE
button.
button.
7
C
2C
03
Set the data, and press PAUSE
button.
button.
8
Playback the recorded signal at
“Preparations before adjustments”
“Preparations before adjustments”
9
<2>
<4D>
<40> Set the data. (Note3)
[7]
[62]
[01]
10
3
33
08
Set the data.
11
Confirm that the playback RF
signal is stable. (Fig. 5-3-4.)
signal is stable. (Fig. 5-3-4.)
12
3
01
07
Set the data, and press PAUSE
button.
button.
13
3
02
Check that the data changes from
“07” to “00” in about 20 seconds
after pressing PAUSE button.
“07” to “00” in about 20 seconds
after pressing PAUSE button.
14
3
03
Check that the data is “00”.
(Note4)
(Note4)
15
Perform “Processing after
Completing Adjustments”.
Completing Adjustments”.
Note 3:
< >: DCR-TRV240, [ ]: DCR-TRV340
Note 4:
If the data is other than “00”, adjustment has errors.
4-4. Processing after Completing Adjustments
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
<2>
<4D>
<00> Set the data. (Note)
[7]
[62]
[00]
3
3
33
00
Set the data.
4
8
21
00
Set the data, and press PAUSE
button.
button.
5
0
01
00
Set the data.
Note:
< >: DCR-TRV240, [ ]: DCR-TRV340
Fig. 5-3-4.
RadarW
RadarW
RadarW
RadarW
RadarW
RadarW
13.3 msec
PB RF signal is stable
Pin
qd
Pin
qh
