Servo And Rf System Adjustments - Sony HVR-V1U Service Manual

3-3.

SERVO AND RF SYSTEM ADJUSTMENTS

Before perform the servo and RF system adjustments, check that
the specified values of "Origin Oscillation check" of "1-3. CAM-
ERA SYSTEM ADJUSTMENTS" is satisfied.
Check that the data of page: 0, address: 10 is "00". If not, select
page: 0, address: 10, and set the data "00".
Adjusting Procedure:
1. CAP FG duty adjustment
2. Switching position adjustment
3. Error rate check
HVR-V1J/V1U/V1N/V1E/V1P/V1C
1. CAP FG Duty Adjustment (TT-003 board)
RadarW RadarW RadarW RadarW RadarW
Set the CAP FG signal duty cycle to 50% to establish an appropri-
ate capstan servo. If deviated, the uneven rotation of capstan and
noise can occur.
Mode
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified value
Note 1: Check that the data of page: 0, address: 10 is "00".
Adjusting method:
Order Page Address Data
1
2 0 01
3 3 03
4 3 71
5 3 01
6 3 02
7 3 03
8 3 70
9 3 70
10 0 01
Note 2: If the data is "01", adjustment has errors or the mecha-
nism deck is defective.
If the data is "80", the mechanism deck is in emergency
state or the end of tape was detected.
6-133
VTR stop (VCR mode)
No signal
Displayed data of page: 3, address:
03
Adjusting remote commander
C
16
The data of page: 3, address: 03 is
"00"
Procedure
Close the cassette compart-
ment without inserting
cassette.
01
FF
01 Press PAUSE (Write) button.
1B Press PAUSE (Write) button.
Check the data changes in
the following order
"1B" t "2B" t "00"
Check the data is "00". (Note 2)
10 Press PAUSE (Write) button.
Check the data changes to
"11".
00