ConradJohnson-Premier1-pwr-sch 电路图 维修手册.pdf

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1、Date: March 31, 2002 Sheetof Size Document NumberREV Ccjp1.sch Title power amplifier PREMIER 1 Federico Paoletti Ia=42mA Ig2=6mA Pa=22W Pg2=3W Ptot=25WIk=48mA blu verde power tube is EL34 V10 V8 1 2 3 V12 R32 68k1 R35 68k1 R38 68k1 R34 18k2 R37 18k2 R3310k R3610k R50 1k R51 1k R52 1k R56 20 R57 20 R

2、58 20 R62 20 R63 20 3 4 5 8 -45v V4b V6b R21 20k R22 20k R23 500k R24 24k R25 24k R26 24k 1 2 6 7 1 2 6 7 V4a 6FQ7 V6a 6FQ7 C20 0.47u C21 0.47u C22 0.47u +330v +430v 5mA per triodo C B R16 100k C14 1u +180v +260v C? 0.15u 600v C? 10p V2b 5751 R17 365k R18 562 R19 90.9 R20 150k R31 1M 1 2 3 6 7 8 V2a

3、 5751 C17 0.47u J? In R? 100k R15 2k C16 20p +0.5v +77v +75v R27 10k R28 10k R29 10k R30 10k 3838 C23 0.47u C24 0.47u C25 0.47u +190v V18 V16 V14 4 5 6 R41 68k1 R44 68k1 R47 68k1 R40 18k2 R43 18k2 R46 18k2 R3910k R4210k R4510k R53 1k R54 1k R55 1k R59 20 R60 20 R61 20 R64 20 R65 20 R66 20 A T?16 8ro

4、sso bianco/verde bianco/blu R? 20 C? 10n Q3 MJE340 D20 1N4007 D211N4007 B Q2 MPSU10 R7 1k8 2W C6 2u 600v +430v D R49 18k2R48 10kR67 20 C4 3300u 350V D2 1N4148 D? LED A R1 100k 2W R3 100k 2W L1 0.32H L2 0.32H R6 330 R8 270k 2W R9 270k2WF2 2A? +516 To Left CH R80 5k11 C19 150p C18 150p E F D? LED D? L

5、ED 3 2 1 8 4 U1A LF353 5 6 7 8 4 U1B LF353 C2 1300u 350V D1 VK1048 T? TRANSFORMER 390Vca D? 6v2 D? 6v2 G 1 2 R68 1M2 R70 560 R71 1M2 R73 560 R69 1M R72 1M Vfil=6.5Vca con 220Vca G T? D30 1N4007 D29 1N4007 C11 220u 10v C12 220u 10v E F R18 562 D31 1N4148 D32 1N4148 G -8v +8v C3 1300u 350V T? TRANSFOR

6、MER C8 100u 150v C9 100u 150v R11 820 2W R11 820 2W D24 1N4007 1/2 Vfil C? +92v R? 221k R? 1M C5 3300u 350V D5-D11 7x33v D12-D19 8x33v Q1 MPSU60 D3 1N4148R2 100k 2W R4 100k 2W D D25-D28 4x1N5251B(4x22v) R5 560k 2W C26 2x2u 600v C? 015u 600v C10 2u2 200v -60v Q5 MJE340 D22 1N4007 D23 1N4007 C Q4 MPSU10 R10 56k 1W C7 1u 600v +260v RadioFans.CN 收音机爱 好者资料库