Sony DCR-TRV30 - Digital Video Camera Recorder, Руководство по обслуживанию

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5-48
4-3. APC & AEQ Adjustment (VC-264 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 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
w;
and Pin
ql
(GND) of
CN009.
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.
Adjusting method:
Order Page Address Data Procedure
1 Playback the recorded signal at
“Preparations before
adjustments”
2 0 01 01 Set the data.
3 3 33 08 Set the data.
4 Confirm that the playback RF
signal is stable. (Fig. 5-3-5.)
5 3 01 07 Set the data, and press PAUSE button.
6 3 02 Check that the data changes
from “07” to “00” in about 20
seconds after pressing PAUSE
button.
7 3 03 Check that the data is “00”.
(Note3)
8 Perform “Processing after
Completing Adjustments”.
Note 3: If the data is other than “00”, adjustment has errors. Take an
appropriate remedial measures according to the errors referring to
the following table.
Data Contents of defect
20 Perform re-adjustment. (Note 4)
30 The machine is defective
50 Perform re-adjustment. (Note 4)
60 The machine is defective
80 The machine is defective
Note 4: If this data is displayed twice successively, the machine is defective.
4-4. Processing after Completing Adjustments
Order Page Address Data Procedure
1 2 30 00 Set the data.
2 3 33 00 Set the data.
3 0 01 00 Set the data.
5. PLL fo & LPF fo Fine Adjustment (VC-264 Board)
Mode VTR stop
Signal Arbitrary
Measurement Point Display data of page: 3, address: 02, 03
Measuring Instrument Adjustment remote commander
Adjustment Page C
Adjustment Address 1F, 20, 22, 29
Specified Value Data of page: 3, address: 02 is “00”.
Data of page: 3, address: 03 is “00”.
Adjusting method:
Order Page Address Data Procedure
1 0 01 01 Set the data.
2 3 01 30 Set the data, and press PAUSE button.
3 3 02 Check that the data changes to
“00” within 5 sec. (Note1).
4 3 03 Check that the data is “00”.
(Note2)
5 0 01 00 Set the data.
Note1: If it is not satisfied, there are errors.
Note2:
If the data of page: 3, address: 03 is other than “00”, there are
errors. For the error contents, see the following table. (For the bit
values, refer to “5-4. SERVICE MODE”, “4-3. 3. Bit value
discrimination”.)
6.7 msec
PB RF signal is stable
Pin
qj
Pin
w;
Fig. 5-3-5.
Bit value of page: 3,
address: 03 data
bit 2 = 1 or bit 3 = 1
bit 4 = 1 or bit 5 = 1
bit 6 = 1
Error contents
PLL fo fine adjustment is defective
PLL fo adjustment is defective
LPF fo is defective
RadarW RadarW RadarW
RadarW RadarW RadarW