Read Sony SLV-7700KML Service Manual online
— 5 —
SERVICE NOTE
Fig. 2.
Fig. 3.
SLV-7700KME/7700KML
Fig. 1.
VHS
1. REMOVAL OF DRUM ASSEMBLY (Fig.1.)
1)
Remove the screw 1 (P3
×
8)
2)
Remove the shaft ground assembly 2.
3)
Remove three screws 3 (P3
×
6).
4)
Remove the drum assembly 4.
Note:
When attaching the drum assembly, be careful not to blur the
contacting surface with fingerprint or like.
When attaching the shaft ground assembly, be careful not apply
force to the spring section of it.
contacting surface with fingerprint or like.
When attaching the shaft ground assembly, be careful not apply
force to the spring section of it.
2. UPPER DRUM REPLACEMENT
2-1. Removal of Upper Drum (Fig. 2.)
1)
Remove the screw 1 (P3
×
8).
2)
Remove the shaft ground assembly 2.
3)
Completely remove the rotary upper drum board and desolder
the soldering indicated by the arrows. (16 points)
the soldering indicated by the arrows. (16 points)
4)
Remove the screws 3 (PSW 3
×
8) and tape out the rotary upper
drum assembly in the direction of arrow. (See Fig. 3.)
If it is difficult, remove by shaking the rotary upper drum
gradually.
If it is difficult, remove by shaking the rotary upper drum
gradually.
Note:
If the drum can not be removed, check whether the solders have
been removed or mot again.
been removed or mot again.
2-2. Mounting Upper Drum
1)
Mount the rotary upper drum assembly by aligning marked
b
with marked of rotary transformer board (lower drum) so
that the screw holes of both upper and lower drums match.
that the screw holes of both upper and lower drums match.
Note:
When inserting the rotary upper drum assembly into the lower
drum, be careful not to blur the contacting surface with
fingerprint or like.
drum, be careful not to blur the contacting surface with
fingerprint or like.
2)
If it is difficult, mount the upper drum by shaking it gradually.
Note:
Be careful not to damage the head. Make sure that the upper
drum is tightly inserted.
drum is tightly inserted.
3)
Tighten two screws 3 (PSW 3
×
8). (See Fig. 3.)
Note:
Temporary tighten two screws, After making sure that upper
drum is tightly inserted, tighten the screws.
drum is tightly inserted, tighten the screws.
1
screw
(P3
×
8)
3
three screws
(P3
×
6)
2
shaft ground assembly
4
drum assembly
1
screw (P3
×
8)
solders
solders
2
shaft ground assembly
3
two screws
(PSW3
×
8)
rotary upper drum assembly
DZR-68-R
DZR-68-R
rotary transformer
board
board
Click on the first or last page to see other SLV-7700KML service manuals if exist.