Sony DCR-TRV40, Руководство по обслуживанию

Страница: 128 / 165

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.