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Tenkey Board - Icom IC-7800 Service Manual Addendum

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11-11 TENKEY BOARD

TENKEY BOARD
J7
GND
RSA
RIT SENSOR
RSB
5V
B
J6
GND
SSA
SUB SENSOR
SSB
5V
J1
3R3V
KI6
KI5
KI4
GND
GND
SSA
SSB
RSA
RSB
UPK
DWK
VMK
to DISPLAY
MPWK
board J1
MWK
MPRK
XFCK
MINK
EQRK
SUBK
CHGK
LDAT
LCK
LOE
LST1
LDPS
J2
5V
MAPL
MNCL
MP2B
MP2A
MP1B
MP1A
SP1A
SP1B
SP2A
SP2B
to DISPLAY
SNCL
board J2
SAPL
PITL
SATK
SLCK
MLCK
SSPK
MSPK
STSK
MTSK
KI0
KI1
KI2
KI3
J3
3R3V
KI3
KI2
KI1
KI0
MTSK
STSK
MSPK
SSPK
MLCK
SLCK
SATK
GND
to SW-C
MPCD
board J1
SPCD
MAPD
SAPD
MAUD
SAUD
MNCD
SNCD
LDPS
PITL
SAPL
SNCL
SP2B
SP2A
SP1B
SP1A
J4
MP1A
MP1B
MP2A
MP2B
GND
to PBT1
GND
board J1
GND
MNCL
MAPL
3R3V
J5
LDPS
MTXD
MRXD
MLCD
SPLD
to LED
STXD
board J1
SRXD
SLCD
GND
turn left
D
C
GND
5V
A,C
A,C
RSA
0V
RSB
5V
5V
B,D
B,D
0V
A
GND
SSA
SSB
5V
3R3V
3R3V
KI6
KI5
KI4
GND
GND
UPK
DWK
VMK
MPWK
MWK
MPRK
XFCK
MINK
EQRK
SUBK
CHGK
LDAT
LCK
LOE
LST1
LDPS
MAPL
MNCL
4.88V
MP2B
MP2A
MP1B
MP1A
SP1A
SP1B
SP2A
SP2B
SNCL
SAPL
PITL
TKYD1
TKYD2
TKYD3
TKYD4
SUBD
MIND
LDPS
3R3V
MPCD
SPCD
MAPD
SAPD
MAUD
SAUD
MNCD
SNCD
LDPS
PITL
SAPL
SNCL
SP2B
SP2A
SP1B
SP1A
MP1A
MP1B
MP2A
MP2B
MNCL
MAPL
3R3V
LDPS
MTXD
MRXD
MLCD
SPLD
STXD
SRXD
SLCD
turn right
5V
0V
OFF
3.30V
OFF
1.8 (1)
0.000V
3.5 (2)
5V
10 (4)
0.803V
14 (5)
0V
21 (7)
1.665V
24 (8)
GENT(.) 2.51V
50 (0)
3.30V
3R3V
KI5
KI4
S11
LS9J2M
R51
R59
390
390
R52
R60
390
390
3.5(2)
1.8(1)
TKYD1
S12
LS9J2M
R53
R61
390
390
R54
R62
390
390
10(4)
14(5)
TKYD2
S13
LS9J2M
R55
R63
390
390
R56
R64
390
390
21(7)
24(8)
TKYD3
S14
R65
R57
LS9J2M
390
390
R58
R66
390
390
GENT(.)
TKYD4
TKYD1
TKYD2
TKYD3
TKYD4
SUBD
MIND
LDPS
MWK
VMK
VMK
UPK
S1
LS8J2M
UP
V/M
MPRK
MPWK
MPWK
DWK
S2
LS8J2M
MP-W
DOWN
SUBK
SUBK
CHGK
CHGK
LDPS
DS1
SML-512DW
R75
1.5k
MINK
MINK
EQRK
XFCK
S7
LS8J2M
MAIN
UPK,DWK,VMK,MPWK,
MWK,MPRK,XFCK,MINK,
EQRK,SUBK,CHGK
EQRK
ON
0.00V
OFF
3.28V
XFC
M=S
3.30V
OFF
3.30V
0.000V
1.8 (1)
0.000V
0.808V
7 (3)
0.812V
1.664V
18 (6)
1.67V
2.52V
F-INP(ENT) 2.52V
3R3V
KI4
S15
S19
LS9J2M
LS9J2M
R67
390
R68
390
7(3)
TKYD1
S16
S20
LS9J2M
LS9J2M
R69
390
R70
390
18(6)
TKYD2
S17
S21
LS9J2M
LS9J2M
R71
390
R72
390
28(9)
TKYD3
S18
S22
LS9J2M
LS9J2M
R73
390
R74
LOE
390
F-INP(ENT)
50(0)
TKYD4
SUBD
MIND
LDPS
MWK
S3
S5
LS8J2M
LS8J2M
MW
MPRK
S6
LOE
LS8J2M
S4
LS8J2M
MP-R
LDPS
MIND
MIND
SUBD
DS2
SML-512DW
R76
1.5k
SUBK
S8
S23
LS8J2M
LS8J2M
SUB
CHGK
S9
S24
LS8J2M
LS8J2M
Explanatory notes
CHANGE
VOLTAGE LINE
11 - 3
3R3V
LOE
C4
0.1
IC1
BU2099FV
1
20
3R3V
VSS
VDD
2
19
LOE
NC
OE
3
18
LDAT
DATA
SO
4
17
LCK
CLOCK
Q11
LST1
5
16
TKYD4
LCK
Q10
MTXD
6
15
TKYD3
Q0
Q9
MRXD
7
14
TKYD2
Q1
Q8
8
13
MLCD
TKYD1
Q2
Q7
SPLD
9
12
SLCD
Q3
Q6
STXD
10
11
SRXD
Q4
Q5
LOE
C5
0.1
IC2
BU2099FV
1
20
3R3V
VSS
VDD
2
19
LOE
NC
OE
3
18
DATA
SO
LCK
4
17
CLOCK
Q11
LST1
5
16
LCK
Q10
6
15
MPCD
MIND
Q0
Q9
SPCD
7
14
SUBD
Q1
Q8
MAPD
8
13
SNCD
Q2
Q7
SAPD
9
12
MNCD
Q3
Q6
10
11
MAUD
SAUD
Q4
Q5
MESUREMENT CONDITIONS
voltage at RX
frequency : 14.1 MHz
mode : J3E(USB)
ANT(RX) : no input
Digital tester
range : input impedance
200mV : 100MΩ
2V : 11MΩ
20V,200V,1000V : 10MΩ

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