Tenkey Board - Icom IC-7800 Service Manual

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 0V
RSB
5V
5V
B,D B,D
0V 0V
A
3.30V
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
XFCK
SP1B
SP1A
MP1A
MP1B
MP2A
MP2B
MNCL
MAPL
3R3V
LDPS
MTXD
MRXD
MLCD
SPLD
STXD
SRXD
SLCD
turn right
5V
OFF 3.30V OFF
1.8 (1) 0.000V 3.5 (2)
5V
10 (4) 0.803V 14 (5)
21 (7) 1.665V 24 (8)
GENT(.) 2.51V 50 (0)
3R3V
KI5
KI4
S11
LS9J2M
R51 R59
390 390
R52 R60
390 390
1.8(1) 3.5(2)
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
R57 LS9J2M R65
390 390
R58 R66
390
390
GENT(.)
50(0)
TKYD4
TKYD1
TKYD2
TKYD3
TKYD4
SUBD
MIND
LDPS
MWK
VMK VMK
UPK
S3
S1
LS8J2M
LS8J2M
V/M
UP
MPRK
MPWK MPWK
DWK
S4
S2
LS8J2M LS8J2M
MP-W
DOWN
SUBK SUBK
CHGK CHGK
LDPS
DS1
SML-512DW
R75
1.5k
MINK MINK
EQRK
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
S20
S16
LS9J2M LS9J2M
R69
390
R70
390
18(6)
TKYD2
S17 S21
LS9J2M LS9J2M
R71
390
R72
390
28(9)
TKYD3
S22
S18
LS9J2M LS9J2M
R73
390
R74
LOE
390
F-INP(ENT)
TKYD4
LDAT
LCK
SUBD LST1
MIND MTXD
MRXD
LDPS
MLCD
MWK SPLD
STXD
S5
LS8J2M
MW
MPRK
S6
LOE
LS8J2M
MP-R
LDPS LCK
MIND MIND LST1
SUBD MPCD
DS2
SML-512DW SPCD
MAPD
R76
SAPD
MAUD
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
DATA SO
4 17
CLOCK Q11
5 16 TKYD4
LCK Q10
6 15
TKYD3
Q0 Q9
7 14 TKYD2
Q1 Q8
8 13 TKYD1
Q2 Q7
9 12 SLCD
Q3 Q6
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
4 17
CLOCK Q11
5 16
LCK Q10
6 15 MIND
Q0 Q9
7 14 SUBD
Q1 Q8
8 13
SNCD
Q2 Q7
9 12 MNCD
Q3 Q6
10 11 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