Alpine 7279M - Page 49

GT SERIES
Tilt Angle
8. Replacement of GT Control P. C. Board and
Program Switch P. C. Board
(GT75B Series model only)
(1) Remove solders as shown in Figure 9.
> 440°
(2) Remove two screws marked “[]” as shown in a Head
Figure
9.
(NG)
(NG)
fy
(3) Remove all connectors and wire leads from the
P. C. Boards. M-300 or AT-500
(4)
After
replacing
with
good
ones,
assemble
them
Gauge
using disassembly instructions in reverse order. Playback
Figure 5
Head :
Replacement of GT Control P. C. Board
(On GT75L010 /GT75L110 /GT75L220 models
only)
(1) Remove solders as shown in Figure 9.
(2) Remove two screws marked “[]” as shown in
(1 te 8 i A
Rlguie
M-300
or
AT-500
Spacer
(3)
Remove
all
connectors
and
wire
leads
from
the
Gauge
Tape
Head
=
‘
P.
C.
Boards.
Guide
igure
(4) After replacing with a good one, assemble the board ;
using
disassembly
instructions
in
reverse
order.
Apply
Screw
Adhesive
Lock
Tape Guide Adjustment Screw
Apply Screw
Adhesive Lock
Adjustment Screw
Tape Guide
M-300 or AT-500 Gauge
(Adjust for smooth insertion
of the gauge)
Gauge tip should be between
Min. and Max.
(GT75B Series model only)
M-300 or AT-500 Gauge
(Adjust for smooth insertion
of
the
gauge)
Figure
7
Gauge
tip
should
be
between
Adjustment
Screw
Min. and Max.
(GT75L010/GT75L110 models only)
Figure 7
M-300 or AT-500 Gauge
(Adjust for smooth insertion
of the gauge)
Gauge tip should be between
Min. and Max.
(GT75L220 model only)