5-54
DCR-TRV40/TRV40E/TRV50/TRV50E
4-3. APC & AEQ Adjustment (VC-283 Board)
Mode
Playback
Signal
Recorded signal at “Preparations
before adjustments”
Measurement Point
Pin
2
of CN1012 (RF MON) (Note1)
Ext. trigger: Pin
4
of CN1012 (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”.
Note1:
Connect a 75
Ω
resistor between Pin
2
and Pin
6
(GND) of
CN1012.
75
Ω
resistor (Parts code: 1-247-804-11)
Note2:
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. 5-3-4.)
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”.
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.
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. 5-3-5.
