Cayin-270-pwr-sch维修电路图 手册.pdf

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1、1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 AA BB CC DD EE FF Title NumberRevisionSize B Date:5-Mar-2001 Sheet of File:D:TEMP270P.SCHDrawn By: Q206 B649 R102 100K C437 39P R101 1K C416 470uF/100V DW105 1W24V C425 224 C412 470uF/100V DW101 1W24V C415 224 L113uH Q212 C5200 Q211 C5200 Q210 C5200 Q213 A1943 Q215 A1

2、943 Q214 A1943 R134 0.25 R135 0.25 R136 0.25 R139 0.25 R140 0.25 R141 0.25 R126 3.3/3W R125 33 R122 2.7 R123 2.7 R124 2.7 R119 2.7 R120 2.7 R121 2.7 C424 2.2uF Q208 Q201 7 5 6 1 3 2 K389 Q202 C2240 Q207 B649 Q205 C2240X2 D101 IN4001 Q216 D669 D102 IN4001 Q209 DW107 1W24V R103 3.3k R104 3.3k R105 10k

3、 R111 100 R113 820 R114 680 R112 6.8k R127 27K R128 1k R107 100 R110 15k R109 15k R115 6.8k R117 20 R118 20 VoutVin GND C411 104 VoutVin GND C414 104 Q204 2SC5171 2SA1930 C418 10000uF/63V C419 CBB0.1uF/100V C420 10000uF/63VC421 CBB0.1uF/100V OB112 uPC1237HA 5 3 7 84 1 6 2 POWER SW 5A/80A250V FUSE F6

4、A250V IC3 D1 D2 D3 D4 TRANS AC220V50Hz J1 C410 0.1uF/100V C408 0.1uF/100V C404 0.1uF/100V C403 0.1uF/100V AC 1 AC 2 + 3 - 4 B03 5A/100V AC 1 AC 2 + 3 - 4 B01 25A/100V +55V GND -55V -70V GND +70V C405 10000uF/63VX2 C407 10000uF/63VX2 C402 6800uF/100V C401 6800uF/100V C438 470uF/25V R143 10K R146 12K

5、R14410K R149 39K R148 56K R145 100K C431 220uF/50V C432 220uF/50V C429 100uF/50V C430 4.7uF/25V D107 IN4001 D106 IN4001 AC 1 AC 2 + 3 - 4 B02 5A/100V Q218 9015 R142 680 R138 10K D105 IN4148 C428 0.033uF R147 3.3K -55V -70V +70V OUTPUT +55V C427 0.033uF Q219 Q220 C436 0.1uF/100V C4340.1uF/100V C4350.1uF/100V C433 0.1uF/100V C406 C409 IN DW102 1W24V Q217 D669 R116 820 R137 680 DW104 1W24V 7815 7915 Q203 C2240 Cayin- 270P R109 16k R106 200 VR101 200 VR102 1K C411 10P RadioFans.CN