Olivetti d-Copia 3003MF, Service Manual

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2MH/2MJ/2MK/2ML
2-3-9
YC20 1 +24V3 O 24 V DC 24 V DC power source
Connected to
the registra-
tion clutch,
paper feed
clutch and
developing
clutch 2 REGDRN O 0/24 V DC Registration clutch: On/Off
3 +24V3 O 24 V DC 24 V DC power source
4 FEDDRN O 0/24 V DC Paper feed clutch: On/Off
5 +24V3 O 24 V DC 24 V DC power source
6 DLPDRN O 0/24 V DC Developing clutch: On/Off
YC21 1 +24V3 O 24 V DC 24 V DC power source
Connected to
the MP paper
feed solenoid 2 MPFDRN O 0/24 V DC MP paper feed solenoid: On/Off
YC23 1 +24V1 I 24 V DC 24 V DC power source
Connected to
the high volt-
age PWB 2 +3.3V1 O 3.3 V DC 3.3 V DC power source
3 ZCROSS I 0/3.3 V DC (pulse) Zero cross signal
4 FAN O 0/24 V DC Left cooling fan motor: On/Off
5 HEATN O 0/3.3 V DC Fuser heater: On/Off
6 SLEEP O 0/3.3 V DC Sleep mode signal: On/Off
7 MHVDR O 0/3.3 V DC Main charger output signal: On/Off
8 RTHVDR O 0/3.3 V DC Transfer (reverse) bias output signal: On/
Off
9 PSEL1 O 0/3.3 V DC Transfer (reverse) bias control signal: On/
Off
10 HVCLK O 0/3.3 V DC (pulse) Developing bias clock signal
11 REGN I 0/3.3 V DC Registration sensor: On/Off
12 TCNT O PWM Transfer current control signal
13 MCNT O PWM Main charger output control signal
14 THVDR O 0/3.3 V DC Transfer bias output signal: On/Off
15 CASE I Analog Cassette switch: On/Off
16 THERM I Analog Fuser thermistor detection voltage
17 +24V3 O 24 V DC 24 V DC power source
18 SGND - - Ground
19 SEPA - - -
YC24 1 +3.3V1 O 3.3 V DC 3.3 V DC power source
Connected to
the waste
toner sensor 2 TNFULL I 0/3.3 V DC Waste toner full detection signal
3 SGND - - Ground
Connector Pin Signal I/O Voltage Description
Y113860-1 Sevice Manual