Canon PC430 Service Manual - Page 39
Inputs to DC Controller 2/2, E, the PC400/FC200.
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Page 39 highlights
CHAPTER 2 BASIC OPERATION 2. Inputs to DC Controller (2/2) Delivery detection PCB DC controller/DC power supply PCB Delivery detection Q801 J801 J603 Fixing heater surface temperature detection J603 -1 TH1 -2 -3 -1 -2 -3 -5 -4 J601 -15(-10) J601 -12(-7) J601 -11(-6) J202 -8 DGT1 J202 -11 KEYR0 J202 -12 TH1 Oscillation signal (output) When Q801 detects copy paper, oscillation signal (DGT1) is input. When surface temperature of fixing heater increases, voltage lowers. J621 PD601 J601 PD602 AE sensor/ intensity sensor Control panel PCB J905 -2 Copyboard position detection Q902 -3 -1 J202 See Chap.4. J201 -11 DGTO Oscillation signal (output) When Q902 detects copyboard -10 KEYRO start position or reversal position, -12 oscillation signal (DGT0) is input. Copyboard position detection PCB J904 -2 +5V -2 Motor rotation detection Q901 -3 -1 Motor rotation detection PCB -1 MMCLK Clock pulses corresponding to -3 revolution of main motor are generated. Pick-up detection Q131 DGT2 Oscillation signal (output) KEYR0 When Q131 detects copy paper, oscillation signal (DGT2) is input. Note: The pin No. in parentheses refers to the PC400/FC200. Figure 2-102E COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 2-7
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