VC-MH722HM (serv.man28). Service Manual Complete - Sharp VCR Service Manual (repair manual). Page 9

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.

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

JiGTG0090

CM

3.

Torque Gauge Head

JiGTH0006

AW

5.

JiGRH0002

BR

JiGSG2000

BS

JiGSG0300

BF

6.

7.

JiGADP003

BK

2.

Torque Gauge

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
2.0kg.

4.

Torque Driver

JiGTD1200

CB

9.

JiGDRiVER11055

AR

Reverse guide height
adjusting box driver

This Jig is used for height adjustment of the
reverse guide (for reverse guide height ad-
justment).

Guide roller height
adjustment drive

This screwdriver is used for adjusting the
guide roller height.

For X value adjustment

X value adjustment
gear type screw driver

This Jig is used for height
adjustment of the reverse guide.

13.

JiGRVGH-F18

BU

12.

JiGDRiVER-6

BM

Reverse Guide Height
Adjusting Jig

11.

JiGDRiVERH-4

AP

Video

Audio

Track

625 Monoscope

6kHz

35

µ

m

625 Monoscope

6kHz

and

and

49

µ

m

Colour bar

1kHz

VROUBZFS

10. Alignment Tape

CK

VROCPSV