Dsp-A, Memory And Bpf Boards - Icom IC-756PROII Service Manual

8-7 DSP-A, MEMORY AND BPF BOARDS

• DSP-A BOARD (TOP VIEW)
120
121
180
181
14 1
8 1
15 28
8 1
9 16
4 1
9 16
5 8
5 4
8 1
1 8
4 5
5 4
8 1
1 14 1 14
7 8 7 8
4
5
8 1
14
1
14 8
7 1
10
1
61
60
8 14
1 7
17 16
11 20
1
240
11 10
20 1
32 1
7 1
9
16
8 1
8 14
9 16
1
16 9 15 14
8
4 1
7 1
1 8
5
8
8 14
5 4
8 1
5 4
28 1
8 1
4 1
5 8
1 9
1
4
7 8
5 8
8 - 12
• MEMORY BOARD (TOP VIEW)
8
7
J1
A18
30 A9 1
A17 A8
A16 A7
A15 A6
A14 A5
A13 A4
A12 A3
A11 A2
A10s A1
A10f A0
GND GND
GND RESET
GND BYTE
GND BYTE
16 GND BYTE 15
to MAIN-A
unit J3503
• BPF BOARD (TOP VIEW)
22 21
28
1
7 8
1 48
24 25
J2
30 D8 D7 1
D9 D6
D10 D5
D11 D4
D12 D3
D2
D13
D14 D1
D15 D0
GND
GND
GND GND
GND HWR
RD
GND
GND RD
GND CSs
16 GND CSf 15
to MAIN-A
unit J3504