Sony GV-D1000E - Digital Video Cassette Recorder, Руководство по обслуживанию

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5-18
GV-D1000/D1000E
4. AGC Center Level and APC & AEQ Adjustment
4-1. Preparations before adjustments
Mode Recording
Signal Color bar
Adjusting method:
Order Page Address Data Procedure
1 2 30 40 Set the data.
2 Record the color bar signal for
three minutes.
3. Switching Position Adjustment (VC-275 board)
Mode VTR playback
Signal SW/OL reference tape (XH2-3)
Measurement Point Display data of page: 3, address: 03
Measuring Instrument Adjustment remote commander
Adjustment Page C
Adjustment Address 10, 11, 12, 13
Specified Value 00
Adjusting method:
Order Page Address Data Procedure
1 Insert the SW/OL reference tape
and enter the VTR STOP mode.
2 0 01 01 Set the data.
3 3 21 Check that the data is “02”.
(Note1)
4 3 01 0D Set the data, and press PAUSE
button.
5 3 02 Check that the data changes to “00”.
6 3 03 Check that the data is “00”.
(Note2)
7 0 01 00 Set the data.
Note1: If the data of page: 3, address: 21 is “72”, the tape top being played.
After playing the tape for 1 to 2 seconds, stop it, perform step 4
and higher.
Note2:
If bit 0 of the data is “1”, the EVEN channel is defective. If bit 1 is
“1”, the ODD channel is defective. Contents of the defect is written
into page: C, addresses: 10 and 12. See the following table. (For
the bit values, refer to “5-4. SERVICE MODE”, “4-3. 3. Bit value
discrimination”. ) If bit 3 of the data is “1”, the tape end being
played, so rewind the tape and perform the adjustment again.
When the EVEN channel is defective
Data of page: C, Contents of defect
address: 10
EE Writing into EEPROM (IC4701) is
defective
E8 Adjustment data is out of range
E7 No data is returned from IC3301
When the ODD channel is defective
Data of page: C, Contents of defect
address: 12
EE Writing into EEPROM (IC4701) is
defective
E8 Adjustment data is out of range
E7 No data is returned from IC3301