Canon PC720 Service Manual - Page 188
Copyright, Canon, Rev.o, Aug.1994, Printed, Japan, Pmprime, Japon
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Page 188 highlights
Composite Power Supply Circuit Diagram (8/8) r 1 I +5V I I I A. C900 W I +5FBT f C901 =A77_7 I +24V C902 0900 +5V 0903 0901 PALS +5FB1- < 2 +5EBT Mg --- 3- VJ_IBIT 4 ESETB Mg - 1 4100E1 M r+- 1100E2 7 -J_P7L PACON 50 WT 49 pPRWDii:cKcEo.NNpY*. 46 CPS_REQ 47 46 020C Al o e 44 AEI JL•.4 a we LONN STBY/CPY* TEWN 42 110 FAC70:NI_21,1 CPS_ACK* 41 11 AC_BONITOR CLX321( 40 Ode 12 AGND PG+111 39 i3 FL EXPO XI 36 14 p__.s XO 37 +24V< i6 +24V We 16 2C249.$ +52 36 BFWM_MK 35 > +5V E0g_42_TFDEiCK Mg 16 MASS nr , pocs M g---?R-CLIHIT g---2-LPROTECT WEB PDC DOB +242 ACBIAS TIM SKGBO 411EF 23 TBEVPNx 2: 21 TF141392 25 Trws S_IN S_OUT S_CLK X901 J205 +24VU < +5FS T < +24 VU 2 CND 3 +5V 4 GND 5 MLOCK J203 tab .-0 2 4407. -9. 3 j 7. --0 .... 4 0 5 C= . 6 0 7 0 28 4 /3191ro .. 9 40 i2 TN_MONP FL_EXP_O CPS -ACK* STBY/CPY. FL_PROT RLOFF* NMD FLPRHT* DVACON DVDCON PRDCON CPS_REQ J204 k 4 1001„ 401.r 0 0 2 2 3 9 4 . 5 2 6 2 7 PW_KEY MLOCK S_CLK S_OUT S_IN ZER_CRS FIT RD A - 20 COPYRIGHT © 1994 CANON INC. CANON PC720174011501770 REV.O AUG.1994 PRINTED IN JAPAN pMPRIME AU JAPON)