Icom IC-7800 Service Manual Addendum page 493

• BOTTOM VIEW (DSP-A/DSP-B BOARDS)
J921
1 AGCDET_A/B IFIN_A/B 2
GND GND
AFOUT_A/B AGCOUT_A/B
GND GND
+A5VA/B +A5VA/B
GND GND
-12V -12V
GND GND
+D5VA/B +D5VA/B
GND GND
11 +15V +15V 22
to the MAIN unit J340 (DSP-A)
to the MAIN unit J360 (DSP-B)
90 85 80 75 70 65 60 55
1
16
50 45 40 35 30
Horizontal
32
17
25 20 15 10 5
8 - 16
50
45
40
35
J961
1 GND1A/B GND1A/B 2
GND1A/B MCLK
30
DRES DSPCK
RTDA/B DSPR
NSQL/B DFRA/B
DULSA/B VSQA/B
GND1A/B DSPCK
25
TNDA/B DX1A/B
FRWT DFXA/B
GND1A/B GND1A/B
D3R3V D3R3V
GND1A/B GND1A/B
20
D1R2V_SENS_A/B D1R2V_A/B
D1R2V_A/B D1R2V_A/B
29 GND1A/B GND1A/B 30
to the MAIN unit J341 (DSP-A)
to the MAIN unit J361 (DSP-B)
15
10
5
0
0