Art_tube_pre_m3_sch 电路图 维修原理图.pdf

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1、330pFC29 330pF C28 35V .33uF C35 1K R76 2N4403 Q9 2N4403 Q8 2N4403 Q7 2N4403 Q6 2N4403 Q10 2N4403 Q11 1N4003 CR1 .1uFC36 .1uFC39 100pFC31 .1uF C33 39K R49 10K R34 10K R64 39K R46 1K R15 10K R41 10K R39 1KR14 50V 10uFC20 150 R7 10K R33 100K R53 22K R47 20K R44 10K R32 2N4401 Q3 150 R6 10KR35 300KR63

2、4.7K R20 4.7K R21 1% 6.98K R24 10KR40 50V 10uF C25 20K R45 2K R59 10KR57 6.3V 220uF C19 TUBE1 1 2 3 4 9 TUBE1 6 7 8 5 9 4.7K R62 50V 10uFC24 39K R50 63V 100uFC11 25V 47uFC15 50V 10uF C27 63V 100uF C12 63V 100uF C13 50V 10uFC26 50V 10uFC21 50V 10uFC38 16V 47uFC37 63V 100uF C34 25V 47uF C18 25V 47uFC1

3、7 63V 100uF C10 25V 47uFC16 25V 47uFC14 25V 470uF C6 25V 47uFC23 - + NE5532 U2 7 6 5 8 4 100pF C30 25V 470uF C7 63V 100uF C9 25V 470uF C5 16V 2200uF C2 25V 470uF C4 35V 1000uF C3 16V 2200uF C1 63V 100uFC8 150R5 1N4003 CR4 1N4003 CR6 1N4003 CR5 20K R60 1N4003 CR7 1N4003 CR3 1N914CR8 330pFC40 - + NE55

4、32 U2 1 2 3 8 4 1N4003 CR2 MPSA29 Q4 J4 100K R52 4.7KR18 4.7KR19 10R3 10R4 300 R10 300 R9 1M R54 20K R51 300 R11 2K R42 20K R43 100K R55 4.7KR23 300 R8 10KR30 10KR29 3.3K R38 5.1MR1 10K R31 1KR13 300K R56 20K R27 20K R22 10KR26 300R12 22KR48 1MR2 39KR61 10K R28 10KR37 3.3KR17 GREEN RED D1 3 21 J3 2N

5、5088 Q5 1N914CR111N914CR13 1N914 CR14 1N914 CR12 1N914 CR9 1N914 CR10 1N914CR16 50V 10uFC22 1% 6.98K R25 3 21 J2 J1 J5 47V 1N5261B CR15 TIP112 Q1 TIP112 Q2 - + TL072P U1 7 6 5 8 4 - + TL072P U1 1 2 3 8 4 7805 VR1 SW3 SW2 SW1 100 R16 100K R58 1KR36 50V 2.2uF C43 2K R73 J113 Q14 J111 Q13 1M R75 20K R7

6、4 1N5818 CR23 2N4403 Q12 1N5818 CR24 100 R65 50V .47uF C44 10K R70 35V 47uF C42 5.1M R69 1N914 CR22 .1uF/5% C47 50V 22uFC49 20K R85 2K R83 470 R84 50V 22uF C45 35V 47uF C41 1N914 CR20 1N914 CR19 4.7K R71 15V 1N5245B CR21 20K R68 - + TL072P U3 7 6 5 8 4 - + TL072P U3 1 2 3 8 4 33K R72 BIT0 BIT1 BIT2

7、BIT3 COMMON SW4.1uF/5% C48 .0068uF/5% C46 15KR81 1M R80 1M R79 10K R78 10KR77 1M R82 300 R67 2K R66 1N270 CR18 25V 47uF C32 1N914 CR17 LAMP2LAMP1 -+ M1 +21V +21V TUBE +IN -IN VS VS VS ATTEN ATTEN +48V +48V +48V 5.7V 5.7V 5.7V +48-1 OPL OPL VS1 VS1 +33V +33V +33V +33V +33V +33V +33V +33V +33V +33V +3

8、3V +33V +33V +33V +33V WARM WARM LOW LOWHIGH HIGH APPLIED RESEARCH & TECHNOLOGY 215 TREMONT STREET ROCHESTER, NY 14608 FILENAME PLOT DATE MANUFACTURING ENGINEERING SHEET REVDWG NO.SIZE DATEAPPROVALS DRAWN CHECKED ISSUED TUBE MP V3 127V4001-10X 127V-1-X.SCH B CW CW 1 OF 1 OUTPUTS MIC/LINE GAIN SWITCH 9VOLTS AC, .4AMPS POWER SUPPLY INPUT (NORMAL) 0UT (REVERSE) IN PHASE SWITCH (MIC)IN (LINE)OUT IN OUT + - RED=CLIP GREEN=POWER LEVEL OUTPUT +40dB+0dB GAIN INPUT PHANTOM POWER SWITCH LINE INPUT MIC INPUT S 3 2 1 S 3 2 1 11-2-2001 11-02-2001 AC R.Kukuchka 收音机爱好者资料库 Ra d i o Fa n s .CN