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5-52
DCR-IP45/IP45E/IP55/IP55E
3-3.
SERVO AND RF SYSTEM ADJUSTMENT
Before perform the servo and RF system adjustments, check that
the specified value of “54MHz/66MHz Origin Oscillation
Adjustment” of “CAMERA SYSTEM ADJUSTMENT” is satisfied.
And check that the data of page: 0, address: 10 is “00”. If not, set
data: 00 to this address.
the specified value of “54MHz/66MHz Origin Oscillation
Adjustment” of “CAMERA SYSTEM ADJUSTMENT” is satisfied.
And check that the data of page: 0, address: 10 is “00”. If not, set
data: 00 to this address.
Note: NTSC model: DCR-IP45/IP55
PAL model: DCR-IP45E/IP55E
Switch setting:
POWER ........................................................................... VCR
Adjusting Procedure:
1.
1.
Cap FG duty adjustment
2.
Treel duty adjustment
3.
Read clock fo adjustment
4.
Switching position adjustment
5.
XREC ACT adjustment
6.
Timing ATF center value
7.
AGC adjustment and AEQ & LMS adjustment
8.
Error rate check
1. Cap FG Duty Adjustment (VC-291 Board)
Set the Cap FG signal duty cycle to 50% to establish an appropriate
capstan servo. If deviated, the uneven rotation of capstan and noise
can occur.
Set the Cap FG signal duty cycle to 50% to establish an appropriate
capstan servo. If deviated, the uneven rotation of capstan and noise
can occur.
Mode
Playback
Signal
Arbitrary tape
Measurement Point
Data of page: 3, address: 0B
Measuring Instrument
Adjustment remote commander
Adjustment Page
C
Adjustment Address
10 to 13, 1A to 1C, 1F, 2E
Specified Value
00
Note1: The data of page: 0, address: 10 must be “00”.
Adjusting method:
Order Page Address Data
Procedure
1
Play back arbitrary tape.
2
0
01
01
Set the data.
3
3
0A
10
Set the data, and press PAUSE
button.
button.
4
3
0B
Check that the data changes
from “10” to “00”.
If the data changes to “FF”,
there are errors. (Note2)
from “10” to “00”.
If the data changes to “FF”,
there are errors. (Note2)
5
0
01
00
Set the data.
Note2: If the data changes to “FF”, adjustment has errors. Contents of the
error is written into page: 3, addresses: 0C. See the following table.
Data of page: 3,
address: 0C
address: 0C
01
02
03
04
05
06
Contents of error
Mechanism mode error (For example, the
adjustment is performed in the mode except
for the play back mode.)
adjustment is performed in the mode except
for the play back mode.)
Adjustment mode error (The data of page: 3,
address: 0A was changed during the
adjustment.)
address: 0A was changed during the
adjustment.)
Data setting error (The data of page: 0,
address: 01 was not “01”.)
address: 01 was not “01”.)
DCFG (IC1401 4 pin) duty adjustment
error
error
ACFG (IC1301 wa , wd pin) duty adjustment
error
error
DCFG and ACFG duty adjustment error
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