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.
Note: NTSC model: DCR-IP45/IP55
PAL model: DCR-IP45E/IP55E
POWER ........................................................................... VCR
Cap FG duty adjustment
Treel duty adjustment
Read clock fo adjustment
Switching position adjustment
XREC ACT adjustment
Timing ATF center value
AGC adjustment and AEQ & LMS adjustment
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
Note1: The data of page: 0, address: 10 must be "00".
Order Page Address 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,
Mechanism mode error (For example, the
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
Data setting error (The data of page: 0,
address: 01 was not "01".)
DCFG (IC1401 4 pin) duty adjustment
ACFG (IC1301 wa , wd pin) duty adjustment
DCFG and ACFG duty adjustment error
Data of page: 3, address: 0B
Adjustment remote commander
10 to 13, 1A to 1C, 1F, 2E
Play back arbitrary tape.
Set the data.
Set the data, and press PAUSE
Check that the data changes
from "10" to "00".
If the data changes to "FF",
there are errors. (Note2)
Set the data.
Contents of error