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5-46
DCR-TRV16/TRV16E/TRV18/TRV18E/TRV116E/TRV118E
4-3. APC & AEQ Adjustment (VC-280 Board)
Mode
Playback
Signal
Recorded signal at “Preparations
before adjustments”
before adjustments”
Measurement Point
Pin w; of CN1002 (RF MON) (Note1)
Ext. trigger: Pin qj of CN1002 (SWP)
Ext. trigger: Pin qj of CN1002 (SWP)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
18, 19, 1B, 1C, 21, 2C
Specified Value
Data of page: 3, address: 02 is “00”.
Data of page: 3, address: 03 is “00”.
Data of page: 3, address: 03 is “00”.
Note1:
Connect a 75
Ω
resistor between Pin w; and Pin ql (GND) of
CN1002.
75
Ω
resistor (Parts code: 1-247-804-11)
Note2:
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
Playback the recorded signal at
“Preparations before adjustments”
“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. 5-3-4.)
signal is stable. (Fig. 5-3-4.)
5
3
01
07
Set the data, and press PAUSE
button.
button.
6
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.
7
3
03
Check that the data is “00”.
(Note3)
(Note3)
8
Perform “Processing after
Completing Adjustments”.
Completing Adjustments”.
Note3:
If the data is other than “00”, adjustment has errors. Take an
appropriate remedial measures according to the errors referring to
the following table.
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
Note4:
If this data is displayed twice successively, the machine is defective.
4-4. Processing after Completing Adjustments
Order Page Address Data
Procedure
1
7
30
00
Set the data.
2
3
33
00
Set the data.
3
0
01
00
Set the data.
6.7 msec
PB RF signal is stable
Pin
qj
Pin
w;
Fig. 5-3-4.
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