Abbreviated Signal Explanation - Sanyo SFX-33 Service Manual

(4) Abbreviated signal explanation
SIGNAL NAME
FUNCTION
CONNECTION
NOTES
DO - D7 LCD data bus CN2 - CN21
(CN22 - LCD)
E
LCD data enable
CN2 - CN21
(CN22 - LCD)
RS LCD register selector CN2 - CN21
(CN22 - LCD)
BZON Buzzer signal CN2 - CN21 ON : LOW
BZ Buzzer power supply CN2 - CN21
ISTOP Stop switch CN2 - CN21 Key ON : Low
COLO-2 Key scan column CN2 - CN21 Key ON : Low
/ROWO-3 Key scan row CN2 - CN21 ~
Key ON : Low
LPERR Error LED CN2 - CN21
LED ON : LOW
LPANS Answer mode LED CN2 - CN21 LED ON : LOW
LP AUT Auto mode LED CN2 - CN21
LED ON : LOW
/DHS Internal handset hook up detection CN3 - CN31
HOOK UP : LOW
(CN32 - CN41)
CN3 - CN31
Mute : High
(CN32 - CN41)
SPMUTE Monitor mute CN3 - CN31 Mute : High
(CN32 - CN41)
MONOUT Line monitor
CN3 - CN31
Analog signal
(CN32 - CN41)
SHORT Circuit short signal
(U.S.A. not use)
CN3 - CN31 ON : High
HZ44 Dial tone/Busy tone detection (U.S.A. not use) CN3 - CN31 Detect : High
IHS External TEL hook up detection CN3 - CN31 HOOL UP : LOW
PCE1 Ringing signal detection CN3 - CN31 Detection AC signal
EARTH Circuit earth signal (U.S.A. not use) CN3 - CN31 ON : High
DP Dial pulse signal CN3 - CN31 ON : High
CML Connect modem to line signal
CN3 - CN31 ON : High
RXLINE
Reception signal CN3 - CN31
Analog signal
TXLINE Transmission signal CN3 - CN31 Analog signal
MONITOR
Monitor signal CN3 - CN31
Analog signal
HV TPH. power supply CN4 - TPH
(CN7 - CN71)
DATA TPH. serial data CN4 - TPH
CLOCK TPH. serial clock CN4 - TPH
/STB1 -4 TPH. strobe signal CN4 - TPH
THM TPH. thermistor output CN4 - TPH
THMG TPH. thermistor GND CN4 - TPH
CUTF Cutter motor forward CN5 - CN51 ON: LOW
CN5 - CN51 ON : LOW
ICUT Cutter wait position
CN5 - CN51 ON : High
(CN53 - CUTTER)
IPAP
Recording paper stock detection CN5 - CN51 ON : LOW
(/sPsz
Recording paper size detection)
CN5 - CN51 ON : LOW
/JAM Recording paper jam detection CN5 - CN51 ON : LOW
(CN54 - JAM SENSOR)
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