Sony Handycam DCR-TRV11, Service Manual

Page: 167 / 215

5-52
3. Switching Position Adjustment (VC-240/241 board)
Mode VTR playback
Signal SW/OL reference tape (XH2-3)
Measurement Point Display data of page: 3, address: 03
Measuring Instrument Adjustment remote commander
Adjustment Page C
Adjustment Address 10, 11, 12, 13
Specified Value 00
Adjusting method:
1)
Insert the SW/OL reference tape and enter the VTR STOP
mode.
2) Select page: 0, address: 01, and set data: 01.
3) Select page: 3, address: 21, and check that the data is “02”.
Note:
If the data of page: 3, address: 21 is “72”, the tape top being
played. After playing the tape for 1 to 2 seconds, stop it, perform
step 4 and higher.
4) Select page: 3, address: 01, set data: 0D, and press the PAUSE
button of the adjustment remote commander.
5) Select page: 3, address: 02, and check that the data changes to
“00”.
6) Select page: 3, address: 03, and check that the data is “00”.
Note: If bit 0 of page: 3, address: 03 data is “1”, the even channel is
defective. If bit 1 is “1”, the odd channel is defective. Contents
of the defect is written into page: C, addresses: 10 and 12. See
the following table. (For the bit values, refer to “5-4. SERVICE
MODE”, “4-3. 3. Bit value discrimination”. )
7) Select page: 0, address: 01, and set data: 00.
When the even channel is defective
When the odd channel is defective
4. AGC Center Level and APC & AEQ Adjustment
4-1. Preparations before adjustments
Mode Camera recording
Subject Arbitrary
Adjusting method:
1)
Select page: 2, address: 30, and set data: 40.
2) Record the camera signal for three minutes.
4-2. AGC Center Level Adjustment (VC-240/241 board)
Mode Playback
Signal Recorded signal at “Preparations
before adjustments”
Measurement Point Pin
w;
of CN009 (RF MON) (Note 1)
Ext. trigger : Pin
qj
of CN009 (SWP)
Measuring Instrument Oscilloscope
Adjustment Page C
Adjustment Address 1E
Specified Value The display data of page: 3, address:
03 is “00”
Note 1: Connect a 75
Ω
resistor between Pin
w;
and Pin
ql
(GND) of
CN009.
75
Ω
resistor (Parts code: 1-247-804-11)
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2) Playback the recorded signal at “Preparations before
adjustments”
3) Select page: 3, address: 33, and set data: 08.
4) Confirm that the playback RF signal is stable.
5) Select page: 3, address: 01, set data: 23, and press the PAUSE
button of the adjustment remote commander.
6) Select page: 3, address: 02, and check that the data is “00”.
7) Select page: 3, address: 03, and check that the data is “00”.
Note: If the data of page: 3, address: 03 is other than “00”, adjustment
has errors. (Take an appropriate remedial measures according
to the errors referring to the following table. )
8) Perform “APC & AEQ Adjustment”.
Note 2: If this data is displayed twice successively, the machine is defective.
Data of page: C,
address: 10
EE
E8
E7
Contents of defect
Writing into EEPROM (IC502) is defective
Adjustment data is out of range
No data is returned from IC301 (CAIN)
Data of page: C,
address: 12
EE
E8
E7
Contents of defect
Writing into EEPROM (IC502) is defective
Adjustment data is out of range
No data is returned from IC301 (CAIN)
Data of page: 3,
address: 03
20
30
40
50
Contents of defect
Perform re-adjustment. (Note 2)
The machine is defective
Perform re-adjustment (Note 2)
The machine is defective
6.7 msec
PB RF signal is stable
Pin
qj
Pin
w;
Fig. 5-3-5.