Apc & Aeq Adjustment (Vc-264 Board); Processing After Completing Adjustments; Pll Fo & Lpf Fo Fine Adjustment (Vc-264 Board) - Sony DCR-TRV30E Service Manual

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 75Ω resistor between Pin w; and Pin ql (GND) of
CN009.
75Ω 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
1
2 0 01 01
3 3 33 08
4
5 3 01 07
6 3 02
7 3 03
8
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.
PB RF signal is stable
Pin w;
Pin qj
RadarW RadarW RadarW
Procedure
Playback the recorded signal at
"Preparations before
adjustments"
Set the data.
Set the data.
Confirm that the playback RF
signal is stable. (Fig. 5-3-5.)
Set the data, and press PAUSE button.
Check that the data changes
from "07" to "00" in about 20
seconds after pressing PAUSE
button.
Check that the data is "00".
(Note3)
Perform "Processing after
Completing Adjustments".
6.7 msec
Fig. 5-3-5.

4-4. Processing after Completing Adjustments

Order Page Address Data
1 2 30
2 3 33
3 0 01
5. PLL fo & LPF fo Fine Adjustment (VC-264 Board)
RadarW RadarW RadarW
Mode
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Adjusting method:
Order Page Address Data
1 0 01
2 3 01
3 3 02
4 3 03
5 0 01
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".)
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
5-48
Procedure
00 Set the data.
00 Set the data.
00 Set the data.
VTR stop
Arbitrary
Display data of page: 3, address: 02, 03
Adjustment remote commander
C
1F, 20, 22, 29
Data of page: 3, address: 02 is "00".
Data of page: 3, address: 03 is "00".
Procedure
01 Set the data.
30 Set the data, and press PAUSE button.
Check that the data changes to
"00" within 5 sec. (Note1).
Check that the data is "00".
(Note2)
00 Set the data.
Error contents
PLL fo fine adjustment is defective
PLL fo adjustment is defective
LPF fo is defective