3 - 16
3-7-2 FRONT CPU (DISPLAY BOARD; IC6)
1
CNTV
Outputs LCD contrast control signal.
2 BRIV
Outputs LCD brightness control
signal.
3 LDAT
Outputs data signal to the SERI
PARA IC (IC7, pin 3).
4 LST
Outputs strobe signal to the SERI
PARA IC (IC7, pin 5).
5 RTCCK
Outputs clock signal to the clock IC
(IC601, pin 6).
8 RTCCE
Outputs the clock IC (IC601, pin 3)
select signal.
High : The clock IC is selected.
9 MOND
Outputs [MONITOR] LED control
signal.
17 RSB
Input port for B phase signal from
[RIT] control (150 pulse).
18 RSA
Input port for A phase signal from
[RIT] control (150 pulse).
19 SSB
Input port for B phase signal from
sub dial (1000 pulse).
20 SSA
Input port for A phase signal from
sub dial (1000 pulse).
21 MSB
Input port for B phase signal from
main dial (1000 pulse).
22 MSA
Input port for A phase signal from
main dial (1000 pulse).
23 TMD
Outputs [TIMER] LED control signal.
High
:
While
lighting.
24 LEDV
Outputs LED brightness control
signal.
25 BKLS
Outputs LCD backlight control signal.
High
:
While
lighting.
26
CFLV
Outputs CFL backlight control signal.
28 PHNI
Input port for the detecting signal
w h e t h e r t h e h e a d p h o n e s a r e
connected or not.
High : Headphones are connected.
33
LTXD
Outputs data signals by 38400 bps.
34
LRXD Input port for data signals by 38400
bps.
35 DOTK
Input port for the connected electric
keyer DOT signal.
36 DSHK
Input port for the connected electric
keyer DASH signal.
37
SQSS
Outputs squelch signal to [MIC] jack.
38 RTCDT
I/O port for data signals from/to the
clock IC (IC601, pins 4 or 5).
39 MSPK
Input port for [SPEECH] for the main
band.
40
TRAK Input
port
for
[TRANSMIT].
41
F1K
Input port for [F-1].
42
F2K
Input port for [F-2].
43
F3K
Input port for [F-3].
45
F4K
Input port for [F-4].
46
F5K
Input port for [F-5].
47
F6K
Input port for [F-6].
48
F7K
Input port for [F-7].
49
SSBK
Input port for [SSB.
50
CWK
Input port for [CW].
51
RTYK
Input port for [RTTY/PSK].
52
AMK
Input port for [AM/FM].
53
DATA
Input port for [DATA].
54
MSCK
Input port for [M.SCOPE].
55
EXTK
Input port for [EXIT/SET].
56
PLYK
Input port for [PLAY].
57
RECK
Input port for [REC].
58
XFCK
Input port for [XFC].
59
EQRK
Input port for [M=S].
61
MINK
Input port for [MAIN].
63
CHGK
Input port for [CHANGE].
64
SUBK
Input port for [SUB].
65
MPRK
Input port for [MP-R].
66
MWK
Input port for [MW].
67
UPK
Input port for [
Y
]
68
DWK
Input port for [
Z
].
69
MPWK
Input port for [MP-W].
70
VMK
Input port for [V/M].
71 MATK
Input port for [AUTO TUNE] for main
band.
72
MTSK
Input port for [TS] for main band.
73
PWRK
Input port for [POWER].
74
MLCK
Input port for [LOCK] for main band.
75 SATK
Input port for [AUTO TUNE] for sub
band.
76
STSK
Input port for [TS] for sub band.
77
SSPK
Input port for [SPEECH] for sub band.
78
SLCK
Input port for [LOCK] for sub band.
79 SP2B
Input port for B phase signal from
[PBT2] dial for sub band.
80 SP2A
Input port for A phase signal from
[PBT2] dial for sub band.
81 SP1B
Input port for B phase signal from
[PBT1] dial for sub band.
82 SP1A
Input port for A phase signal from
[PBT1] dial for sub band.
83 MP2B
Input port for B phase signal from
[PBT2] dial for main band.
84 MP2A
Input port for A phase signal from
[PBT2] dial for main band.
85 MP1B
Input port for B phase signal from
[PBT1] dial for main band.
86 MP1A
Input port for A phase signal from
[MAIN PBT1] dial.
Pin
Port
Description
number
name
Pin
Port
Description
number
name
