Mch Aeq & Lms Adjustment (Vc-291 Board); Error Rate Check (Vc-291 Board) - Sony DCR-IP45 Service Manual

7-4. Mch AEQ & LMS Adjustment (VC-291 Board)
Adjust the equalizer to minimize the Mch error rate.
Mode Playback
Signal Recorded signal at "Preparations
Before Adjustments"
Measurement Point Data of page: 3, address: 01
Measuring Instrument Adjustment remote commander
Adjustment Page C
Adjustment Address 52 to 66, 68, 6A
Specified Value 00
Note1: The data of page: 0, address: 10 must be "00".
Adjusting method:
Order Page Address Data
1
2 0 01 01
3 9 9A 64
4 9 9C 13
5 3 00 0B
6 3 01
7 3 00 11
8 3 01
9 9 9C 10
10 9 9A 16
11 0 01 00
Note2: If the data doesn't changes to "00", AEQ adjustment has errors.
Contents of the error is written into page: 3, addresses: 06. See the
following table.
Data of page: 3,
address: 06
01 Pch adjustment has errors.
02 Mch adjustment has errors.
Adjustment was interrupted. (Eject etc.)
03
Note3: If the data doesn't changes to "00", LMS adjustment has errors.
Contents of the error is written into page: 3, addresses: 02. See the
following table.
Data of page: 3,
address: 02
01 LMS adjustment time out
02 Envelope is abnormal
Procedure
Playback the recorded signal at
"Preparations Before Adjustments"
Set the data.
Set the data, and press PAUSE
button.
Set the data, and press PAUSE
button.
Mch AEQ adjustment
Set the data, and press PAUSE
button.
Check that the data changes to "00".
If the data doesn't change to
"00", there are errors. (Note2)
Mch LMS adjustment
Set the data, and press PAUSE
button.
Check that the data changes to "00".
If the data doesn't change to
"00", there are errors. (Note3)
Set the data, and press PAUSE
button.
Set the data, and press PAUSE
button.
Set the data.
Contents of error
Contents of error
DCR-IP45/IP45E/IP55/IP55E

8. Error Rate Check (VC-291 Board)

Mode
Subject
Measurement Point
Measuring Instrument
Specified Value
Note1: The data of page: 0, address: 10 must be "00".
Adjusting method:
Order Page Address Data
1 9 9C
2
3
4 3 00
5 3 01
Note2: If the data changes to "FF", there are errors. Contents of the error
are written into page: 3, addresses: 02. See the following table.
Data of page: 3,
address: 02
Pch has errors.
01
02 Mch has errors.
03 Pch and Mch have errors.
5-57
Camera recording and play back
Arbitrary
Data of page: 3, address: 01, 02
Adjustment remote commander
00
Procedure
Check that the data is "10".
Enter the camera REC mode and
record the camera signal for
about 5 minutes.
Play back the recorded signal.
17 Set the data, and press PAUSE
button.
Check that the data changes to "00".
If the data changes to "FF",
there are errors (Note2).
Perform "AGC Adjustment and
AEQ & LMS Adjustment" again.
Contents of error