Icom IC-M604A Service Manual - Page 8

DISASSEMBLY INSTRUCTIONS, Removing the AF UNIT, Opening the transceiver case

Page 8 highlights

SECTION 3 DISASSEMBLY AND OPTIONS INSTRUCTIONS 1. Opening the transceiver case 1 Unscrew 6 screws A, and remove the front unit. 2 Unscrew 6 screws B, and remove the rear panel. FRONT UNIT REAR panel A B A AB A B B A B 2. Removing the LOGIC UNIT 1 Disconnect connector from J5 and flat cables from J1, J2 and J6. 2 Unsolder 2 points C. 3 Disconnect microphone connector from J4 and SQL/ DIAL connectors from J7. 4 Unscrew 7 screws D, and remove the LOGIC UNIT. LOGIC UNIT D D D D J1 D J3 J2 J7 J4 J6 J5 D D C 3. Removing the MAIN UNIT 1 Remove the shield cover E. E 2 Disconnect flat cables from J1 and J2. 3 Unsolder 17 points F. 4 Unscrew 7 screws G, and remove the MAIN UNIT. GJ2 G MAIN UNIT G G J1 F G F G FG Unsolder point 4. Removing the AF UNIT 1 Disconnect 4 connectors from J5, J8, J9 and J10. 2 Disconnect 2 flat cables from J2 and J4 3 Unscrew 2 screws H, and remove 2 clips I, J. 4 Unscrew 3 screws K, and remove the AF UNIT. J I J9 J10 J5 H J8 K K K J2 AF UNIT J4 3 - 1

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J2
J4
J5
J8
J10
J9
K
K
J
H
I
K
AF UNIT
4. Removing the AF UNIT
1
Disconnect 4 connectors from J5, J8, J9 and J10.
2
Disconnect 2 flat cables from J2 and J4
3
Unscrew 2 screws
H
, and remove 2 clips
I
,
J
.
4
Unscrew 3 screws
K
, and remove the AF UNIT.
1. Opening the transceiver case
1
Unscrew 6 screws
A
, and remove the front unit.
2
Unscrew 6 screws
B
, and remove the rear panel.
A
A
A
A
A
B
B
B
B
B
FRONT UNIT
REAR panel
E
J7
J4
J5
J2
J1
J6
J3
C
D
D
D
D
D
D
D
LOGIC UNIT
G
G
F
G
G
F
G
F
G
G
J1
J2
Unsolder point
MAIN UNIT
2. Removing the LOGIC UNIT
1
Disconnect connector from J5 and flat cables from J1,
J2 and J6.
2
Unsolder 2 points
C
.
3
Disconnect microphone connector from J4 and SQL/
DIAL connectors from J7.
4
Unscrew 7 screws
D
, and remove the LOGIC UNIT.
3. Removing the MAIN UNIT
1
Remove the shield cover
E
.
2
Disconnect flat cables from J1 and J2.
3
Unsolder 17 points
F
.
4
Unscrew 7 screws
G
, and remove the MAIN UNIT.
SECTION 3
DISASSEMBLY AND OPTIONS INSTRUCTIONS
3 - 1