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• CPU (LOGIC UNIT: IC1) (continued)
3 - 6
PIN
No.
LINE
NAME
SIGNAL DESCRIPTION
I/O ACTIVE
PULL-UP/
PULL-DOWN
69
PDT
PLL+MAIN system data (M62352GP×2, AD9951,
AD9833)
O
H
data=1
–
70
PCK
PLL+MAIN system clock (M62352GP×2, AD9951,
AD9833)
O
–
data latch
–
71–75
KS0–
KS4
Key matrix strobe output 0
O
H
H strobe subject of interrrupt
–
76
SQSS
Squelch signal (SQLS) output via the [ACC/MIC]
terminal
O
H
open (mute OFF)
47 k
Ω
pull-
down
77
RTKI
Keying input for RTTY
I
H
H=SPACE (keying)
47 k
Ω
pull-up
78
MSNDS External SEND control (via MIC jack)
O
H
transmitting (except MIC
SEND)=H
47 k
Ω
pull-
down
79
MNFL Manual notch volume input
I
–
CCW=0 V, CW=5 V
–
80
DCVL Power voltage loading
I
–
power voltage 5V convert
–
81
DOTK DOT input (keying)
I
L
down=1.55 V, up=2.5 V
47 k
Ω
pull-up
82
DASK DASH input (keying)
I
L
down=1.55 V, up=2.5 V
47 k
Ω
pull-up
83
IPD
Pre-driver current (sauce voltage) input
I
–
In proportional
(Voltage vs Current)
–
84
IDL
Id (current) loading
I
–
In proportional
(Voltage vs Current)
–
85
SNDL SEND loading (from ACC socket)
I
L
Detect TX (less than 1.0 V)
–
86
ALML ALC meter
I
–
0 (min)–5 V (max)
–
87
REFL REF voltage (SWR detection)
I
–
0 (min)–5 V (max)
–
88
FORL FOR voltafe (SWR detection)
I
–
0 (min)–5 V (max)
–
89
FANL PA UNIT temperature (thermo-sensor)
I
–
0 (min)–5 V (max)
–
90
UDL
MIC UP/DOWN input
I
–
0–5 V
–
91
PB2L [TWIN PBT] volume (outer)input
I
–
CCW=0 V, CW=5 V
–
92
PB1L [TWIN PBT] volume (inner)input
I
–
CCW=0 V, CW=5 V
–
93
RFGL [SQL/RF] gain volume input
I
–
CCW=0 V, CW=5 V
–
95
AFGL [AF gain] volume input
I
–
CCW=0 V, CW=5 V
–
96
VREF A/D conversion reference voltage (=VCC1)
I
–
–
–
98
LOST Strobe for shift register for 1st LO filter
O
H
–
–
99
MSNDL SEND signal from [MIC] jack.
I
L
TX detect (less than 1.0 V)
–
100
DRFS DSP data frame(RX)
O
H
–
–
LINE NAME
DESCRIPTION
ACTIVE
AMS
AM mode select
H
B8WS
RX BPF/LPF (33.000000 MHz and higher) select
H
B8S
TX BPF/LPF (33.000000 MHz and higher) select
H
PROF
PREAMP OFF
H
PRON
PREAMP ON
H
ATTS
Attenuator control
L
L3S
LPF (5.000000–7.999999 MHz) select
H
L2S
LPF (2.000000–4.999999 MHz) select
H
LINE NAME
DESCRIPTION
ACTIVE
B0S
BPF/LPF (0.030000–1.599999 MHz) select
H
B1S
BPF/LPF (1.600000–1.999999 MHz) select
H
B2S
BPF/LPF (2.000000–3.999999 MHz) select
H
B3S
BPF/LPF (4.000000–7.999999 MHz) select
H
B4S
BPF/LPF (8.000000–10.999999 MHz) select
H
B5S
BPF/LPF (11.000000–14.999999 MHz) select
H
B6S
BPF/LPF (15.000000–21.999999 MHz) select
H
B7S
BPF/LPF (22.000000–32.999999 MHz) select
H
• SHIFT REGISTER (RF UNIT: IC141)
• SHIFT REGISTER (RF UNIT: IC142)
• SHIFT REGISTER (MAIN UNIT: IC2701)
LINE NAME
DESCRIPTION
ACTIVE
LOF0
1st LO filter (0.030000–14.999999 MHz) select
H
LOF1
1st LO filter (15.000000–29.999999 MHz) select
H
LOF2
1st LO filter (30.000000–44.999999 MHz) select
H
LOF3
1st LO filter (45.000000–54.000000 MHz) select
H
Summary of Contents for IC-7200
Page 1: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 19 VOLTAGE DIAGRAM 21 Jun 2009 ...
Page 33: ...Oct 2008 SERVICE MANUAL ADDENDUM CONTENTS BOARD LAYOUTS LOGIC AND MAIN UNITS 1 Nov 2008 ...
Page 38: ...Oct 2008 SERVICE MANUAL ADDENDUM CONTENTS BOARD LAYOUTS RF AND MAIN UNITS 1 Oct 2008 ...
Page 74: ...S 14513XZ C1 Oct 2008 HF 50MHz TRANSCEIVER ...
Page 135: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14513XZ C1 2008 Icom Inc ...