Sharp UX-370SE Service Manual page 56

UX-370ES/SE/F
FO-780AT/ES
[Signals for status recognition according to input signals]
Signal Name
H:The handset is in the on-hook state.
RHS
L: The handset is in the off-hook state.
CI Incoming call (CI) detection signal
H:Recording paper does not exist.
P-E L: Recording paper is set (exists).
(Detection of recording paper in printing state)
H:Recording paper does not exist in case of
printing.
P-IN
L: Recording paper exists in case of printing.
(Detection of recording paper in printing state)
[Other signals]
Signal Name
TEL IN Receiving signal from line or modem
TEL OUT Transfer signal to line
Transmission (DTMF) analog signal output
TXOUT
from modem
Reception (DTMF, others) analog signal input
RXIN
into modem
(Example: TEL speaking)
CML
TEL
H
LINE
L
EXT.
CI DETECT
H
L E-RLY
TEL
(RCVOL)
H
EARTH
L
TELMUTE
HANDSET
L
RX
H
DG
TX
Function
Function
DPON
(MPXB)
H
~ +
L
~ –
H
HS AGC
L
DPMUTE
(MPXC)
L
H
L
ON
H
HOOK
OFF
DG HOOK
NO Signal Name (CNLIUA)
1
2
3
4
5
6
7
NO Signal Name (CNLIUB)
1
2
3 SIGMUTE/TXMUTE
TEL/LIU PWB CONTROL PWB
E-RLY RCVOL
CML CML
RLYCONT RCVOL2
DPON DPON
DPMUTE DPMUTE
CI CI
HS HS
TXMUTE
L
SIGMUTE
H
TXOUT TXOUT
SIDETONE
CANCELER
RXIN RXIN
EXTING
TEL IN TEL IN
TEL OUT TEL OUT
HOOK SW
H
RHS RHS
L
TEL MUTE TEL MUTE
SPEAKER
Fig. 6
5 – 10
NO Signal Name (CNLIUA)
TELOUT 8
9
TELIN
TELMUTE 10
11
CI/CIDIN1
CIDIN2/HS 12
13
P-E
P-IN
14
NO Signal Name (CNLIUB)
4
EXTSIG
RLYCNT 5
6
GAINC
L
H
HI GAIN
H TXCONT
L
L
H
VREF
SPMUTE
L
L
BZOUT
H
H
VOL B
VOL A
DG
RHS
RXIN
TXOUT
CML
+5V
DG
+24VA
DPON
DPMUTE
RCVOL
RCVOL
RCVOL2
DPMUTE
MODEM
(R96DFXL-CID)
TXMUTE
VOL B
VOL A
TXOUT
RXIN
GAINC
CI
HS
TXCONT
RHS FC200M
SPMUTE
DPON
BZCONT
CML
TEL MUTE
PE9