Icom IC-7100 Service Manual Addendum page 230

• SUB CPU (MAIN UNIT: IC6401)
PIN LINE
No. NAME
1 ICCV APC AMP reference voltage.
2 FANV Cooling fan rotation control voltage.
15 3DST 3rd LO DDS strobe.
16 1CN1 1st Lo DDS control bit. (OSK)
17 1CN0 1st Lo DDS control bit. (IOUPDATE)
18 1DST 1st Lo DDS strobe.
19 PDAT DDS serial data.
20 PCK DDS serial clock.
21 HTXS The HF/50 MHz/70 MHz band TX circuit
control.
High= While transmitting on the HF/50
MHz/70 MHz band.
22 VTXS The VHF band TX circuit control.
High=While transmitting on the VHF band.
23 UTXS The UHF band TX circuit control.
High= While
HF/50 MHz/70 MHz band.
24 LOF5 1st LO fi lter select.
High= While operating on 148.000000 to
199.999999 MHz.
25 LOF6 1st LO fi lter select.
High= While operating on 400.000000 to
470.000000 MHz.
28 LOF4 1st LO fi lter select.
High= While operating on 115.5130000 to
148.000000 MHz.
29 LOF3 1st LO fi lter select.
High= While operating on 60.000000 to
115.512999 MHz.
30 LOF2 1st LO fi lter select.
High= While operating on 15.000000 to
59.999999 MHz.
31 LOF1 1st LO fi lter select.
High= While operating on 0.030000 to
14.999999 MHz.
33 TCON External antenna tuner connection detect.
Low=An antenna tuner is connected.
34 MMSL Microphone type detect.
Low=HM-151 is connected.
36 RSPK Speaker plug insertion detect.
High= A speaker is connected on the rear
speaker jack.
39 PRESL DDS reset.
Low=Reset.
40 DBRS 1st LO fi lter select.
High= While operating on 30.000000 to
470.000000MHz.
44 DLF1 DDS fi lter switching control.
High= While operating on 30.000000 to
107.999999 MHz.
47 DLF2 DDS fi lter switching control.
High=While operating on
0.030000 to 29.999999 MHz,
108.000000 to 199.999999 MHz or
400.000000 to 470.000000 MHz
51 DLF3 DDS fi lter switching control.
High= While operating on 0.030000 to
199.999999 MHz.
54 TXS TX circuit (All bands) control.
High=While transmitting.
DESCRIPTION
transmitting on the
• D/A CONVERTER (MAIN UNIT: IC7006)
PIN LINE
I/O
No. NAME
2 VUID1V VHF/UHF band TX power AMP iding current
O
control.
O
3 DIDV TX drive AMP iding current control.
O
4 VUT1V VHF/UHF band BPF tuning voltage. (1 of 2)
O
5 VUT2V VHF/UHF band BPF tuning voltage. (2 of 2)
O
6 VTRV VHF band 1st IF trap circuit tuning voltage.
O
7 BANV Operating band selecting voltage.
O
8 POCV TX output power control voltage.
O
9 DRIV TX drive AMP gain control voltage.
O
12 IFT1V 1st IF fi lter tuning voltage. (1 of 2)
13 IFT2V 1st IF fi lter tuning voltage. (2 of 2)
18 HFID1V HF/50 MHz/70 MHz band TX power AMP idling
O
current control. (1 of 2)
19 HFID2V HF/50 MHz/70 MHz band TX power AMP idling
O
current control. (2 of 2)
• EXPANDER (MAIN UNIT: IC7001)
O
PIN LINE
No. NAME
O
1 UPRES UHF band pre-AMP control.
Low=The Pre-AMP is ON.
2 VUATTS 144/430 MHz band attenuator control.
O
High=Attenuator ON.
3 VBANDS VHF band tuned BPFs switching.
High= While operating on the VHF band
O
4 FMS Operating mode select.
High=While operating in the FM or DV mode.
O
5 NASBS Operating mode select.
High= While operating in the mode other than
O
6 AMS AM mode select.
High=While operating in the AM mode
7 WFMS WFM mode select.
I
High=While operating in the WFM mode
15 VPRES VHF band pre-AMP control.
I
Low=The Pre-AMP is ON.
I
• EXPANDER (MAIN UNIT: IC7002)
PIN LINE
O
No. NAME
1 B1 HF/50 HMz/70 MHz band select.
O
High= While operating on 1.600000 to
2 B2 HF/50 HMz/70 MHz band select.
O
High= While operating on 2.000000 to
3 B3 HF/50 HMz/70 MHz band select.
O
High= While operating on 3.400000 to
4 B4 HF/50 HMz/70 MHz band select.
High= While
O
5 B5 HF/50 HMz/70 MHz band select.
High= While operating on 13.900000 to
O
6 B6 HF/50 HMz/70 MHz band select.
High= While operating on 20.900000 to
7 B7 HF/50 HMz/70 MHz band select.
High= While operating on 40.000000 to
15 B0 HF/50 MHz/70 MHz band BPFs switching.
High= While
3-11
DESCRIPTION
DESCRIPTION
(74.800000 to 128.999999 MHz).
SSB or AM.
DESCRIPTION
1.999999 MHz
3.399999 MHz
6.899999 MHz
operating on 6.900000
13.899999 MHz
20.899999 MHz
39.999999 MHz
59.999999 MHz
operating on 0.030000
1.599999 MHz
I/O
O
O
O
O
O
O
O
O
O
O
O
O
I/O
O
O
O
O
O
O
O
O
I/O
O
O
O
O
to
O
O
O
O
to