Icom IC-M604A Service Manual - Page 33
Board Layouts, Vr Unit, Sql Unit, Dial Unit, Connect Unit, 1 Vr Unit Top View
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SECTION 9 BOARD LAYOUTS 9-1 VR UNIT (TOP VIEW) W1 3 GND VOL2 1 VOL1 to AF unit J6 9-2 SQL UNIT (TOP VIEW) W1 1 SQL5V SQLV 3 SQLG to LOGIC unit J7 9-3 DIAL UNIT (TOP VIEW) W1 5 GND DIAL4 to LOGIC unit J7 DIAL3 DIAL2 1 DIAL1 CVCC CVCC NC NMEAIN+ NMEAOUT+ RTADA1 AF/MIC1 RRXDA2 AF/MIC2 GND to AF unit J4 20 2 J4 to LOGIC unit J6 6 1 J6 CMDPWR1 GND CMDPWR2 ICF3 GND KPWRH2 CVCC CVCC GND NMEAINRRXDA1 GND PTTC RTXDA2 MICG GND 9-4 CONNECT UNIT (TOP VIEW) 12 V25 J5 SP+ SP- to AF unit W6 V20 19 1 V15 V10 V5 V0 H0 H5 H10 H15 H20 H25 H30 H35 H40 H45 H50 H55 H60 H65 H70 H75 H80 • CONNECT UNIT (BOTTOM VIEW) COMMAND MIC2 COMMAND MIC1 GPS V25 V20 V15 V10 V5 H80 H75 H70 H65 H60 H55 H50 H45 H40 H35 H30 H25 H20 H15 H10 H5 V0 H0 9 - 1
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SECTION 9
BOARD LAYOUTS
9 - 1
9-1 VR UNIT (TOP VIEW)
9-2 SQL UNIT (TOP VIEW)
9-3 DIAL UNIT (TOP VIEW)
9-4 CONNECT UNIT (TOP VIEW)
• CONNECT UNIT (BOTTOM VIEW)
H5
H10
H15
H20
H25
H30
H35
H40
H45
H50
H55
H60
H65
H70
H75
H80
H0
V5
V10
V15
V0
V25
V20
H80
H75
H70
H65
H60
H55
H50
H45
H40
H35
H30
H25
H20
H15
H10
H5
H0
V5
V10
V15
V0
V25
V20
VOL1
3
1
to AF unit J6
W1
VOL2
GND
SQLG
1
3
to LOGIC unit J7
W1
SQLV
SQL5V
DIAL1
1
5
to LOGIC unit J7
W1
DIAL2
DIAL3
DIAL4
GND
1
2
to AF unit J4
20
19
J4
GND
AF/MIC2
RRXDA2
AF/MIC1
RTADA1
NMEAOUT+
NMEAIN+
NC
CVCC
CVCC
GND
MICG
RTXDA2
PTTC
GND
RRXDA1
NMEAIN
-
GND
CVCC
CVCC
SP
-
12
to AF
unit W6
J5
SP+
6
to LOGIC unit J6
1
J6
ICF3
GND
KPWRH2
CMDPWR1
GND
CMDPWR2
GPS
COMMAND
MIC1
COMMAND
MIC2