Primare-A30_3-pwr-sm 电路图 维修手册.pdf

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1、RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 12345678 A B C D 87654321 D C B A Title NumberRevisionSize A3 Date:19-Feb-2001Sheet of File:E:PRIMAREA30-3SCHEM1124-1.SCH Drawn By: - CONFIDENTIAL - L CW R3 100K R9 100K R11 2K2 R18 330R R33 10K R19 330R R35 1K R20 330R R36 330k R37 330k R34 5K6 R32 33

2、0R C2 100N C5 100N C9 100N R45 4.7R 2W Z1 30V Q3 2SC3420 D6 PMLL4148R14 1K8 PIN PIN P4 PIN R50 68R Q4 BC546B Q5 BC846 Q6 BC846 Q10 BC856 1 23 Q17 2SK117GR Q18 2SC4793 R57 390R R58 33k R5 100K Q21 2SC4793 C18 470P Q22 2SA1837 Q30 2SA1837 R52 68R R59 220R R65 270R R71 100R Trim NO1 1 N02 8 C1 2 C2 7 N

3、C1 3 NC2 6 COIL 4 COIL 5 K1 Relay power 8A/24V C19 470n C20 470N Q31 2SA1633 Q33 2SC4278 C21 1N5 PIN P5 PIN R72 1K4 Q7 BC846 Q16 BC856 R15 2K2 R73 1K.M Z2 30V +40VREG -40VREG L1 25X7.8-1.1MM R741.8R R751.8R R762.2R R772.2R 1 2 JP2 HEADER 2 R78 0.22R R79 0.22R 3 2 1 84 U2A MC1458 5 6 7 U2B MC1558 R82

4、 150K D7 1N4148 C22 470N R83 1M R84 1M R7 120K R85 1M D8 1N4148 Q8 BC846 D10 2V7 R8 56K +15V -15V +15V R87 1K2 3W R88 10k Q32 2SA1633 Q34 2SC4278 R80 0.22R R81 0.22R C1 10000U/50V C3 10000U/50V 1 2 3 4 5 6 JP1 HEADER 6 D2 BRIDGE1 C4 220U/80V C6 220U/80V Vin 3 ADJ 1 Vout 2 REG1 LM317T Vin 3 ADJ 1 Vou

5、t 2 REG2 LM337T R1 15K R2 15K R4 402R R6 402R D3 BDY17D D4 BDY17D D5 BDY17D D11 BDY17D C7 3.3U/50V C8 3.3U/50V C10 3.3U/50V C11 3.3U/50V +40VREG -40VREG -56V +56V +56V -56V C12 47N C1347N C14 47N C1547N S1 1AT S2 1AT D12 1N4148 C16 47N C23 47N C24 47N C25 47N 1 2 JP3 HEADER 2 D1 1N5402 D151N5402 D16

6、1N5402 D171N5402 D18 PMLL4148 C17 470n C26 470N R10 6K8 C27 470N 1 2 3 4 5 JP4 HEADER 5 POWE-AMP EM1124 1/1 BN RadioFans.CN 收音机爱 好者资料库 123456 A B C D 654321 D C B A Title NumberRevisionSize B Date:19-Feb-2001Sheet of File:E:PRIMAREA30-3SCHEM1122.SCHDrawn By: R301 1M D301 1N4148 D302 1N4148 C301 10U/

7、63V R302 100K R304 47K D303 6.2V R305 47K Q301 BC846B Q304 BC856B C302 220U/35V R303 100K Q302 BC846B C303 100NF C304 1NF C305 1NF D304 1N5404 D305 1N5404 C306 3300/6.3V R307 NTC 7R R309 VDR275 R310 470K C307 3300/6.3V R308 NTC 7R 1 2 P302 HEADER 2 1 2 P303 HEADER 2 S3013.15A S302 3.15A S303 3.15A N

8、O1 1 N02 8 C1 2 C2 7 NC1 3 NC2 6 COIL 4 COIL 5 K301 RELAY DPDT3 1 2 JP301 HEADER 2 1 2 P304 HEADER 2 1 2 JP302 HEADER 2 R311 22K R312 47K R315 100K R316 100K R313 47K R317 3MEG C308 100N/63V R318 487R Q303 BC846B R314 47K C309 10U/16V +9V +9V 5 2 1 3 JP303 3.5MM-JACK 5 2 1 3 JP304 3.5MM-JACK D306 KB

9、2855 3 2 6 74 U301 741 R319 NC 1 2 3 4 6 5 T301 TRANSF33X28 D307 BDY17 D308 BDY17 D309 BDY17 D310 BDY17 R323 390R R324 390R R325 10K R327 47K D312 PMLL4148 D311 DIODE Vin 1 Vout 2 Vout 3 Adj 4 n.c. 5 Vout 6 Vout 7 n.c. 8 REG301 LM317LM R328 2k2 R329 390R STANDBY Q306 BC846B R330 100K R331 47K D313 P

10、MLL4148 R332 1R 1 2 P1 HEADER 2 S1 3.15A 1 2 3 S2A SW DPDT 4 5 6 S2B SW DPDT JP305 JP306 Q305BC856B R335 100K Q307 BC856B R336 1K R320 100K R306 100K Q308 BC846B Q309 BC846B Q310 BC846B Q311 BC846B R321 100K R322 100K R333 100K R334 100K +SW +SW R337 NC 1 2 3 4 5 JP307 HEADER 5 STANDBY JP308 115V ST

11、ANDBY EM1122 1/1 BN IDLE CURRENT ADJUSTMENT 1: Switch on the amplfier and leave unit on for at least 15min. 2: Connect a voltmeter to JP3 and adjust potentiometer R71 to 15mV +/-1mV 3: After the power has been on for 30 min readjust R71for 15mV +/-1mV TECHNICAL SPECIFICATIONS Output power per channel 3X120W/8 ohm, 200W/4 ohm Output impedance 0.03 ohm DC offset 5mV Frequency response 10HZ-100KHZ -3db Signal to noise A-weighted 100 dB THD+noise 0.08% Standby 3.5W DIMENSIONS (WXDXH) 430X385X100 MM Weight 16Kg