Canon PC980 Service Manual - Page 360
C. General Circuit Diagram
UPC - 030275182323
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[220/240V] H N Line filter J502 J501 FT2 FT4 LF1 2 2 FT1 FT3 1 1 J1 DS1 Door switch NF1 NOISE FILTER PCB Thermal fuse 1 FU1 Scanning lamp LA1 J17 FT6 FT5 Fixing heater H1 J16 1 2 J15 J2 FU2 Thermal fuse 2 J434 11 22 C. GENERAL CIRCUIT DIAGRAM MAIN MOTOR DRIVER PCB 1. Copier J901 1 2 3 4 Main motor M1 M BP701 BP705 PR +24VU GND MMD MLOCK [120V] H N FT2 FT4 FT1 FT3 J1 DS1 Door switch JP502 JP501 J501 2 1 J501F 2 1 NF1 NOISE FILTER PCB 2 1 J201 123 J910 21 J207 4321 J205 J209 J212 COMPOSITE POWER SUPPLY PCB J213 AE SENSOR PCB AE J601 4321 Scanner home position sensor PS1 J301 1 2 3 Scanner thermistor TH2 Scanner cooling fan FM1 J202 123456 J203 12345678 J204 1234567 T302 J601 1 2 3 4 4321 4 3 To ADF 2 1 J24F BP703 BP707 DV BP702 J14 BP706 BP704 HVT BOARD 1 HVT BOARD 2 J15 SP TR J62 91 82 73 64 55 46 37 28 19 J11 J12 VZ2 Varistor 2 J13 J433 1 2 Fixing thermistor TH1 Delivery sensor PS3 3 2 1 J61 GND AFREF AE +24VR SCHP GND +5V TH2 GND +24VU FM1D* GND +24VU +5V +5V GND +24VR RLOFF* ACK* MMD CPS_REQ PR_DC_ON DV_DC_ON DV_AC_ON STBY/CPY* PWOFF S_IN S_OUT S_CLK ZER_CRS HEAT_TRG MLOCK TH1 DIG1 HEAT0 DIG1 HEAT1 GND DIG3 GND DPD 1234 J107 321 J101 J109 1 2 3 4 5 6 7 8 9 10 11 12 J131 12 J130 J113 123 J132 12345 654321 J105 87654321 J103 7654321 J104 J114 12345678 DC CONTROLLER PCB J108 12345 J110 123456 J106 12 123456789 J102 J111 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 LNSLD* +24VU PUSLD* +24VU RGSLD* +24VU MFSLD* +24VU GND LHP +5V DIG2 GND SFPD CPUSD* +24VU +5V GND PDP REQ GND ACK GND TXD GND RXD GND RPD +5V GND SC_COM SC_B* SC_B SC_COM SC_A* SC_A SB_LP* +24VU DIG0 DIG1 DIG2 DIG3 SEG0* SEG1* SEG2* SEG3* SEG4* SEG5* SEG6* SEG7* KR0 KR1 PWOFF GND +5V DSVR DIG4 J52 2 1 12 J51 6 5 4 3 2 1 123456 J53 2 1 12 J54 2 1 12 J55 3 2 1 123 J58 2 1 12 J60 8 7 6 5 4 3 2 1 To ADF J56 3 2 1 J57 3 2 1 SL SL SL SL J59 3 2 1 SL SL3 Lens solenoid SL1 Pickup clutch solenoid SL2 Registration SL4 Multifeeder clutch solenoid pickup solenoid (Multifeeder type only) PS2 PS5 Lens home Single-feeder position sensor paper sensor (Single-feeder type only) SL5 Cassette pickup solenoid PS4 Vertical path roller paper sensor COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) J751 3 2 1 Q751 Pre-registration roller paper sensor SENSOR PCB M 12 12 J601 J602 M2 Scanner/lens drive motor SIDE BLANK EXPOSURE PCB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 J301 2 1 J302 CONTROL PANEL PCB J3 VZ1 J4 Fixing film Varistor 1 1 2 J303 Power switch A-5