Canon PC980 Service Manual - Page 376
Composite Power Supply Circuit Diagram [A504] 3/8, VIN_1SR139
UPC - 030275182323
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Composite Power Supply Circuit Diagram [A504] (3/8) T101 TIM 24VOFF 16 13 LOW_G R154 C152 D103 C141 FB101 R118 C115 C116 +5V L180 + C181 + C182 L181 DC24V_S R119 D104 + C118 +5V R158 R139 +24VR R157 C132 C133 3 4 1 2 8 Q117 +5V C136 R121 D180 FB180 C184 R180 R182 1 Q180 Cs Cd 8 2 Es Si 7 3 Ct V+ 6 4 GND INV 5 C180 R181 +24VR + C183 D129 D130 R115 ZD101 C134 15 D105 VIN_1SR139 24VON FB103 R167 Q109 R138 +24VR +5V R165 C154 L101 +5V C126 R134 C153 R128 R131 R132 D109 LOW_GU 14 FB102 D107 C122 T105 4 2 3 1 Q110 C125 R130 86 7 5 4 R144 R168 R145 C142 8 1 Q116 4 R149 2 3 R169 Q111 C139 Q115 C140 + R150 R141 +5V R156 Q107 C146 R159 D108 R148 +24VR Q115 C145 8 2 1 +5V 3 4 R155 R160 D119 R147 C143 R136 D120 MPWM_INV C144 R146 C120 R152 12 3456 J202 +5V +5V D132 R122 ZD102 R123 +5V R124 +5V ZD103 C137 5 6 +5V D117 R129 4 D118 7 8 Q117 O.V.P Q108 R127 +5V + C135 O.C.P.1 +24VU +5V R151 R153 + C103 C129 Q116 5 8 7 6 4 C160 D131 C127 R125 R186 R185 O.C.P.2 CLIMIT COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) A-21