Samsung CLP 300N Service Manual - Page 144
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Main Board(15/15) Schematic Diagram 1 2 HVPS +24VF CN21-1 DF11-24DP-2DSA(20) 1 A 2 C294 3 100nF 4 DGND 5 C296 1nF 6 B 7 8 9 10 11 12 C C257 1nF C273 1nF DGND 13 14 15 C242 C297 C274 10nF 10nF 10nF D DGND 16 +5V 17 18 E 19 20 21 22 23 24 F DGND C309 100nF C259 1nF C275 1nF C299 1nF C290 1nF C298 1nF C253 1nF C249 100nF C288 1nF C272 1nF NC7 1nF NC6 3 4 5 6 7 8 +5V U20-1 DM7407MX 14 2 1 C251 100nF DGND 7 DGND U20-2 DM7407MX 4 12 3 U20-3 DM7407MX 6 10 5 U22-5 DM7407MX 10 8 11 12 U20-6 13 DM7407MX U20-5 11 DM7407MX U20-4 9 DM7407MX U22-6 13 DM7407MX nDEV_EN PWM_DEV_VPP PWM_DEV_AC PWM_DEV_DC PWM_ITHV PWM_THV PWM_MHV nTHV_EN +5V +24V +24VA +24VF SMPS A CN15-1 DF11-16DP-2DSA 2 1 FUSER_ON 4 3 6 5 8 7 10 9 12 11 14 13 16 15 B C166 100nF C171 100uF 16V C185 100nF C208 100uF 50V C196 100nF C240 100uF 50V 2401-000042 2401-000207 2401-000207 DGND C C287 1nF 1nF N.C R134 10K R159 10K R124 10K +3.3V ITHV_READ THV_READ MHV_READ +5V_LSU CN26-1 35303-0250 1 2 CN16-1 5096-02C 1 2 +24VA +24VF R180 47K R116 3K,1% D24 2 1 KDS226 3 DGND R146 100 C258 10nF DGND R135 10K +5V_COVER SWITCH nP_EXIT +24VF C293 100nF 2203-005249 D28 M4 DEV_SOL1 DEV_SOL2 DEV_SOL3 DEV_SOL4 OUT_TEMP 3 2 DGND 3 2 DGND Q15 MMBT2222ALT1 1 R123 1.2K R131 4.7K C247 1nF Q17 MMBT2222ALT1 1 R136 1.2K FAN_MAIN WASTE_LED R147 4.7K C276 1nF DGND +24V_COVER SWITCH D +5V nCOVER_OPEN R188 4.7K R179 300 +3.3V +24VF 2 1 3 Q19 MMBT2907A R187 560 3 2 R178 1 6.2K Q18 MMBT2222ALT1 21 D21 3 KDS226 C225 100nF R99 22K E R104 5.1K DGND Engineer K.C.LEE Drawn by R&D CHK S.D.AN DOC CTRL CHK MFG ENGR CHK Digtal Printing Division R&D 5 TITLE: Size A3 F CLP-300(N)/CLX-3160N(FN) Main_V0.11 HVPS, SMPS, COVER_OPEN 15/15 1 2 3 4 5 6 7 8 Samsung Electronics This Document can not be used without Samsung's authorization. Service Manual 11-15
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