Icom IC-R20, Руководство по обслуживанию

Страница: 55 / 117

SECTION 3 DISASSEMBLY INSTRUCTIONS
(1) REMOVING THE REAR PANEL
q
Unscrew 4 screws,
A
(2
×
115 mm, black).
w
Unscrew 2 screws,
B
(2
×
8 mm, black).
e
Unplug W1 and J8 (LOGIC unit) to separate the front and
the rear panels.
(3) REMOVING THE REC UNIT
q
Unscrew 4 flat-head screws,
H
(2
×
4 mm, silver).
w
Unsolder 1 point,
I
.
e
Remove the REC unit in the direction of the arrow.
(4) REMOVING THE RF UNIT
q
Unscrew 3 flat-head screws,
J
(2
×
4 mm, silver).
w
Unsolder 2 points,
K
.
e
Remove the RF unit in the direction of the arrow.
Front panel
Rear panel
LOGIC unit
Speaker
W1
J8
A
B
H
I
REC unit
RF unit
J
K
K
J1
LOGIC unit
J5
C
D
E
F
G
(2) REMOVING THE LOGIC UNIT
q
Remove 2 knobs,
C
, and unscrew 2 nuts,
D
.
w
Unscrew 2 flat-head screws,
E
(2
×
4 mm, silver), and 1
pan-head screw,
F
(2
×
4 mm, black).
e
Unsolder 10 points,
G
.
r
Unplug J5 (bottom side of LOGIC unit) and J1 (RF unit) to
separate the LOGIC unit.
t
Remove the LOGIC unit in the direction of the arrow.
3 - 1