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FO-780A
[3] Point- to-point diagram
4 – 3
TX/RX
MOTOR
TPBD
TPAD
TPBD
TPAD
VMT
VMT
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
OPERATION
PANEL
PWB
TPBD
TPAD
TPBD
TPAD
VMT
VMT
THERMAL
HEAD
VTH
VTH
STRB1
STRB2
THI
N.C.
MG
MG
MG
+5V
STRB3
STRB4
LATCH
PCLK
DATA
VTH
VTH
VTH
STRB1
STRB2
THI
N.C.
MG
MG
MG
+5V
STRB3
STRB4
LATCH
PCLK
DATA
VTH
1
2
3
4
5
6
7
1
2
3
4
5
6
7
VO
DG
+5V
PHIT
CISCLK
GLED
+24V
VO
DG
+5V
PHIT
CISCLK
GLED
+24V
KEN4A
KEN3A
KEN2A
KEN1A
DG
DG
+5V
ORGSNS
FRSNS
E
SEN4
SEN0
SEN1
SEN2
SEN3
KEN4A
KEN3A
KEN2A
KEN1A
DG
DG
+5V
ORGSNS
FRSNS
E
SEN4
SEN0
SEN1
SEN2
SEN3
CNPN
CNPN
CNCIS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TEL/LIU
PWB
TELOUT
TELIN
TELMUTE
CI/CIDIN1
CIDIN2/HS
PE
PIN
RHS
RXIN
TXOUT
CML
+5V
DG
+24V
TELOUT
TELIN
TELMUTE
CI/CIDIN1
CIDIN2/HS
PE
PIN
RHS
RXIN
TXOUT
CML
+5V
DG
+24V
CNLIUA
CNLIUA
CNMT
CNTH
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
POWER
SUPPLY
PWB
MG
MG
+24V
+24V
+24VA
DG
+5V
DG
PSAVE
MG
MG
+24V
+24V
+24VA
DG
+5V
DG
PSAVE
CN1
CNPW
CNCSW
CNSP
CIS
1
2
CSW
DG
CAM
SWITCH
1
2
1
2
1
2
SP+
SP-
CSW
DG
SP+
SP-
SPEAKER
CONTROL
PWB
1
2
3
4
5
6
1
2
3
4
5
6
EXTSIG
RLYCNT
SIGMUTE/
TXMUTE
DPON
DPMUTE
RCVOL
EXTSIG
RLYCNT
SIGMUTE/
TXMUTE
DPON
DPMUTE
RCVOL
CNLIUB
CNLIUB
Summary of Contents for FO-780A
Page 64: ...FO 780A Control PWB parts layout Top side 6 7 ...
Page 65: ...FO 780A Control PWB parts layout Bottom side 6 8 ...
Page 68: ...FO 780A 6 11 TEL LIU PWB parts layout Top side ...
Page 69: ...FO 780A TEL LIU PWB parts layout Bottom side 6 12 ...
Page 71: ...FO 780A Power supply PWB parts layout 6 14 ...
Page 101: ...FO 780A M E M O 18 ...