12
VC-A422U
VC-H822U
4. ADJUSTMENT, REPLACEMENT AND ASSEMBLY OF MECHANICAL UNITS
The explanation given below relates to the on-site general service (field service) but it does not relates to the adjustment
and replacement which need high-grade equipment, jigs and skill. For example, the drum assembling, replacement and
adjustment service must be performed by the person who have finished the technical courses.
4-1 MECHANISM CONFIRMATION ADJUSTMENT JIG
So as to perform completely the mechanism adjustment prepare the following special jigs. So as to maintain the initial
performance of the machine the maintenance and check are necessary. Utmost care must be taken so that the tape is
not damaged. If adjustment needs any jig, be sure to use the required jig.
JiGTG1200
CN
JiGMP0001
BY
1.
Torque Cassette Meter
JiGVHT-063
CZ
No.
Jig ltem
Part No.
Code
Configuration
Remarks
JiGTG0090
CM
3.
Torque Gauge Head
JiGTH0006
AW
JiGRH0002
BR
JiGSG2000
BS
JiGSG0300
BF
7.
JiGADP003
BK
Tension Gauge
These Jigs are used for checking
and adjusting the reel disk height.
When fixing any part to the threaded
hole using resin with screw, use the
jig. (Specified torque 5 kg)
This cassette torque meter is used for check-
ing and adjusting the torque of take-up for
measuring tape back tension.
These Jigs are used for checking
and adjusting the torque of take-up
and supply reel disks.
Master Plane Jig and
Reel Disk Height
Adjusting Jig
Pinch pressing force
measuring jig
This Jig is used with the tension
gauge. Rotary transformer clearance
adjusting jig.
There are two gauges used for the
tension measurements, 300 g and
2.0 kg.
4.
Torque Driver
JiGTD1200
CB
8.
JiGDRiVER11055
AR
Reverse guide height
adjustment box driver
This Jig is used for height adjustment of the
reverse guide (for reverse guide height ad-
justment).
These tapes are especially used for
electrical fine adjustment.
Video
Audio
HiFi Audio
Track
525 Monoscope
7k
—
58
µ
m
NTSC Color Bar
1k
—
58
µ
m
VROEFZCS
BG
OR
VROEFZHS
BH
1k
This screwdriver is used for adjusting the
guide roller height.
For X value adjustment
This Jig is used for height
adjustment of the reverse guide.
11.
JiGDRiVER-6
BM
X value adjustment
gear driver
Reverse Guide Height
Adjusting Jig
10.
JiGDRiVERH-4
AP
12.
JiGRVGH-F18
BU
2.3k
Black Level
(only SYNC) signal
—
19
µ
m
2.
Torque Gauge
6.
5.
9.
Alignment Tape
VROATSV
CD
Guide roller height
adjustment driver
Summary of Contents for VC-A422U
Page 51: ...VC A422U VC H822U VC A422U VC H822U 52 53 SIGNAL FLOW BLOCK DIAGRAM VC A422U ...
Page 52: ...VC A422U VC H822U VC A422U VC H822U 54 55 SIGNAL FLOW BLOCK DIAGRAM VC H822U ...
Page 53: ...56 VC A422U VC H822U POWER CIRCUIT BLOCK DIAGRAM ...
Page 63: ...72 VC A422U VC H822U M E M O ...
Page 76: ...85 VC A422U VC H822U M E M O ...