Icom IC-7800 Service Manual Addendum page 485

• BOTTOM VIEW (PBT1 BOARD)
40 35 30
• BOTTOM VIEW (PBT2 BOARD)
75 70 65 60 55
25 20 15 10
Horizontal
50 45 40 35 30 25 20 15
Horizontal
• BOTTOM VIEW (TENKEY BOARD)
20
15
J4
1 MP1A
MP1B 2
MP2A
MP2B
GND
GND
GND
10 MNCL
9 MAPL
3R3V 10
to the PBT1 board J1
5
J3
SP1A 30
29 SP1B
SP2A
SP2B
SNCL
SAPL
PITL
0
LDPS
SNCD
MNCD
SAUD
5 0 MAUD
SAPD
MAPD
SPCD
MPCD
NC
GND
SATK
SLCK
MLCK
SSPK
MSPK
STSK
MTSK
KI0
KI1
KI2
KI3 2
1 3R3V
to the SW-C board J1
20
J6
15
4 1
to the SUB SENSOR
10
60
5
0
10 5 0
• BOTTOM VIEW (LED BOARD)
150 145 140 135 130 125 120 115 110 105 100
1 20
10 11
1 20
10 11
55 50 45 40 35 30 25 20
Horizontal
95 90 85 80 75 70 65 60 55 50 45
Horizontal
8 - 8
80
J5
10 LDPS
MTXD 9
MRXD
MLCD
75 SPLD
STXD
SRXD
SLCD
2 NC
GND 1
to the LED board J1
70
J1
3R3V 1
2 KI6
KI5
KI4
GND
GND
65 SSA
SSB
RSA
RSB
NC
UPK
DWK
VMK
MPWK
60
MWK
MPRK
XFCK
MINK
EQRK
SUBK
CHGK
NC
LDAT
55
LCK
LOE
LST1
NC
NC 29
30 LDPS
to the DISPLAY board J1
50
45
J2
40
5V 1
2 NC
MAPL
MNCL
NC
NC
MP2B
MP2A
MP1B
35
MP1A
NC
SP1A
SP1B
SP2A
SP2B
SNCL
SAPL
PITL
30
SATK
SLCK
MLCK
SSPK
MSPK
STSK
MTSK
KI0
KI1
25
KI2
KI3 29
30 NC
to the DISPLAY board J2
20
15
10
J7
5
4 1
to the RIT SENSOR
0
15 10 5 0
15
10
5
0
40 35 30 25 20 15 10 5 0