Alpine 7190M - Page 39

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.
(2) Remove two screws marked “[]” as shown in
Figure 9,
(3) Remove all connectors and wire leads from the
P. C. Boards.
(4) After replacing with good ones, assemble them
using disassembly instructions in reverse order.
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 “(1)”
Figure 9.
(3) Remove all connectors and wire leads from the
P. C. Boards.
(4) After replacing with a good one, assemble the board
using disassembly instructions in reverse order.
as shown in
Adjustment Screw
Securing Screw
M-300 or AT-500 Gauge
(Adjust for smooth insertion
of the gauge)
Gauge tip should be between
Min. and Max.
(GT75L010,/GT75L110 models only) oR
Figure 7
Gauge tip should be between
Min. and Max.
GT SERIES
Tilt Angle
* +30°
Head
(NG) (NG) a
M-300 or AT-500
Gauge
Playback Figure 5
Head
P2272 1111 LD
M-300 or AT-500 Eee Pic
ape Hea
Gauge Guide Figure 6
Apply Screw Adhesive Lock
Tape Guide Adjustment Screw
Apply Screw
Adhesive Lock
(Adjust for smooth insertion
of the gauge)
Gauge tip should be between
Min. and Max.
(GT75B Series model only)
Figue 7
Adjustment Screw
M-300 or AT-500 Gauge
(Adjust for smooth insertion
of the gauge)
(GT75L220 model only)