Sharp VC-A30G Serviceanleitung Seite 32

VC-A30G(BR) VC-A30S(BR)
VC-A30GM(BR) VC-A30SM({BR)
VC-A30QM(BR) VC-A30SV(BR)
@ Reassembly
Notes :
1.
NO —
Before setting the drum, check that there are no
scratches or dust on the edge of the surface and
circumference of the disk.
. Before setting the drum, check that there are no
scratches or dust on the internal surface and
edge of the surface of the upper drum.
. On assembling these parts, insert the upper
drum onto the disk with care, so that the upper
drum is not tilted.
. When assembling these parts, do not allow dust
or dirt come between the disk and the upper
drum.
. Do not use excessive force when driving in the
screws.
[2 Head Model] [4 Head Model]
Figure 1-76.
. Set the new drum.
. Fasten the upper drum in place with the two
screws.
. Solder the leads.
Note: Soldering should be performed quickly
and carefully without touching adjacent
patterns.
. After replacement, be sure to check the tape
drive train adjustment (see page 26.) and the
following electric adjustments.
Adjustment of the playback switching point.
Checking and adjustment of the X-position
Adjustment of SP and LP slow tracking preset.
(Only 4 Head model)
32
REPLACEMENT OF D.D. MOTOR
N— @
=-2Zupw
. Put the unit in the cassette eject position.
. Unplug the power cord.
Removal (Reverse the order in reassembly.)
. Remove the FFC @.
. Remove the two D.D. rotor assembly setscrews
. Pull out the D.D. rotor @.
. Remove the three D.D. strator setscrews @.
. Remove the D.D. strator assembly ©.
otes :
. When removing the D.D. rotor assembly or D.D.
strator assembly, use care not to hit the loading
relay gear.
. Secure the D.D. rotor assembly so that the
installation positioning holes in the D.D. rotor
assembly and lower drum assembly match.
. Be careful not to damage the upper drum or the
video head.
. Be sure that the hall device and the D.D. strator
assembly are not damaged by the D.D. rotor
assembly or other parts.
. After installation, adjust the playback switching
point.
D.D. stator ass'y
setscrew
Figure 1-77.