Service manual

UX-510UA
FO-1470U
(Example: TEL speaking)
No. Signal Name (CNLIUA)
1 PE1
2 TEL OUT
3 TEL IN
4 TEL MUTE
5
CI
6HS
7 CML
Fig. 7
Signal Name Function
RHS
H:The handset is in the on-hook state.
L: The handset is in the off-hook state.
CI Incoming call (CI) detection signal
DRSNS
H: Door open.
L: Door close.
[Signals for status recognition according to input signals]
Signal Name Function
TEL IN Receiving signal from line or modem
TEL OUT Transfer signal to line
SPOUT Speaker output signal
TXOUT
Transmission (DTMF) analog signal output
from modem
RXIN
Reception (DTMF, others) analog signal
input
into modem
[Other signals]
5 – 10
No. Signal Name (CNLIUA)
8 TXOUT
9 RXIN
10 RHS
11 DOOR SW
12
+5V
13
DG
14
+24V
TEL SPEAKING:
FAX SENDING/RECEIVING:
DTMFMUTE
CONTROL PWBTEL/LIU PWB
RX
TX
HANDSET
SP
DRIVER
HS
CI
CSWI
PESNS
FRSNS
ORGSNS
PSNS
LEDON
BZOUT
CML
SPMUTE
RCVOL
VTHON
FAX
ENGINE
SCE114
ADC
DAC
SIN
DAC GAIN
0,6dB
SOUT
ADC GAIN
0,–4dB
MIC IN
LPF
LINE IN
LPF
SP OUT
ENABLE
0,20,25,30dB
LINE
DRIVER
LINEOUT
ENABLE
MUTE,0,
–6,–12dB
RHS
DRSNS
TXMUTE
TELMUTE
IA-RESET
SPMUTE
SPEAKER
RCV VOL
TELMUTE
TELIN
CI
M
B
C
CML
L1
L2
INTEGRATED ANALOG
20415
TELOUT
RXIN
TXOUT
SPKRP-P
MICP
LINEIN
LINEOUT
RTLOOP
(0:1)
(1:0)
(0:0)
(1:1)
MIC ENABLE
MIC
ENABLE
1
0
LINE IN
ENABLE
1
0
(0:0)
(1:1)
(1:0)
LNINSEL
IACR1
IACR2
IACR3
BIT7 BIT6 BIT5 BIT4 BIT3 BIT2 BIT1 BIT0
DAC
GAIN
MIC GAIN L/O E
SPKR E
ADC
GAIN
L/I E MIC E
TXRX
LOOP
LINEOUT
ATTENUATION
RXTXLOOP
MICBIAS
SEL
LINE SEL
MIC
GAIN
DTMFMUTE