Adjustment, Replacement And Assembly Of Mechanical Units - Sharp DV-NC70U Service Manual

8. 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.
8-1 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.
No. Jig ltem
1. Torque Cassette Meter
2.
Torque Gauge
3. Torque Gauge Head
4. Torque Driver
Master Plane Jig and
5. Reel Disk Height
Adjusting Jig
6. Tension Gauge
Pinch pressing force
7.
measuring jig
8. Alignment Tape
Guide roller height
9.
adjustment driver
X value adjustment
10.
gear driver
Tension Pole
11.
Adjustment Driver
Part No. Code
JiGVHT-063 CZ
JiGTG0090 CM
JiGTG1200 CN
JiGTH0006 AW
JiGTD1200 CB
JiGRH0002 BR
JiGMP0001 BY
JiGSG2000 BS
JiGSG0300 BF
JiGADP003 BK
VROATSV CD
VROEFZCS BG
OR
VROEFZHS BH
JiGDRiVERH-4 AP
JiGDRiVER-6 BM
JiGHMEC-M005 CK
15
Configuration
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.
When fixing any part to the threaded
hole using resin with screw, use the
jig. (Specified torque 5 kg)
These Jigs are used for checking
and adjusting the reel disk height.
There are two gauges used for the
tension measurements, 300 g and
2.0 kg.
This Jig is used with the tension
gauge. Rotary transformer clearance
adjusting jig.
These tapes are especially used for
electrical fine adjustment.
Video
525 Monoscope
NTSC Color Bar
Black Level
(only SYNC) signal
This screwdriver is used for adjusting the
guide roller height.
For X value adjustment
This Jig is used for adjustment
of tension pole.
DV-NC70U/C
DV-NC72U
Remarks
Audio HiFi Audio Track
7k — 58 m
1k — 58 m
1k
— 19 m
2.3k