Carvin_00101b12mar92 电路图 维修原理图.pdf

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1、Quad X-Amp 24JUN91John L. Murphy NOTES: UNLESS OTHERWISE SPECIFIED 3. ALL DIODES ARE 1N4003 EXCEPT AS NOTED. 1. ALL GROUNDS ARE A EXCEPT AS NOTED. R1 R2 C1C2 5.6K 0.22 2.7K 0.22 R7 C4 C7 P1 R3R4 R6 C8 C5 C6 A5.B 6 !- 5 + 7 R8 R5 A1.B 6 !- 5 + 7 56K56K .001 10 N/U N/U 4.7K 4.7K 100K .01 82pF A100K cw

2、 R9 330 1155 INDUSTRIAL AVE. APPROVED: NO: DATE: DATE: PCB NO: ASSY. REV: REV: (619) 747-1710 FAX 747-9065 DRAWN BY: REVISED BY:DATE: ESCONDIDO, CA 92029 ARVINC R18 C17 P2 R17 C18 C15 C16 C19 R19 R16 A3.B 6 !- 5 + 7 10 5.6K .033 10K 10K 100K .01 82pF A100K cw .22 R20 330 R27 R28 R36R35 C33N/U C32 C3

3、4 R33R32 C31 A6.B 6 !- 5 + 7 .0068 1.5K 15K 560K 560K .0047 .0022 15K 1.5K TREBLE BASS P5 P6 C30 R30R29 C28 2.2K .068 .1 2.2K P7 MID C2910pf R31 R37 4.7K R34 22K 22K R40R41 R49 R48 C45N/U C44 C46 R46 R45 C43 A7.B 6 !- 5 + 7 .0068 1.5K 15K 560K560K .0047 .0022 15K 1.5K TREBLE BASS P11 P10 C42 R43R42

4、C40 2.2K .068 .1 2.2K P9 MID C41 10pf R44 R50 4.7K R47 22K 22K R61R62 R67R66 C59N/U C60 A9.B 6 !- 5 + 7 .0068 1.5K 560K560K 1.5K P14 C58 R64R63 C56 2.2K .068 .1 2.2K P13 C57 10pf R65 R68 4.7K 22K C25 R25R24 A5.A 2 !- 3 + 1 C24 6.8K10K .22 .022 A10.B 6 !- 5 +7 C26 P4 1B100K cw 27pF A4.B 6 !- 5 + 7 C2

5、2 P3 1B100K cw 27pF A8.B 6 !- 5 + 7 C50 P12 1B100K cw 82pF A2.B 6 !- 5 + 7 C38 P8 1B100K cw 82pF C21 R22 R21 A4.A 2 !- 3 + 1 C20 6.8K 10K .22 .022 A2.A 2 !- 3 + 1 C36 N/U R26 33K C27 10 VOLUME 1 R23 33K EFF SND 1 EFF RTN 1 EFF SND 2 EFF SND 3 EFF SND 4 EFF RTN 2 EFF RTN 3 EFF RTN 4 Q2 R85 15K C39 10

6、 C3 .0033 R12 R13 C11C12 68K 0.1 33K 0.1 C14 R14R15 A3.A 2 !- 3 + 1 15K15K .001 C13 .0047 C51 10 R53 10K C53 C52 R57 A9.A 2 !- 3 + 1 100K .01 56pF Q3 R56 33K C54 R60 100K .01 Q4 R54 33K R58 33K C23 10 C55 10 R76 10K C47 10 C35 10 R55 33K R59 33K S1 R1 S2 R2 S3 R3 S4 R4 S1 S2R2 S4 C2 C3 C3 C4 C64 C62

7、 R72 A6.A 2 !- 3 + 1 100K .01 180pF Q5 R71 10K C65 R75 100K .01 Q6 C63 10 C66 R78 100K .01 Q7 R70 10K R74 10K R77 10K D2 D1 H4-2 CH1 /CH4 IN CH2 /CH3 IN VOLUME 2 VOLUME 3 VOLUME 4 C61 10 H3-8 H3-4 C9 A1.A 2 !- 3 + 1 120pF R11 39K C10 0.1 R10 10K H3-3 C1 C2 C3 C4 CH SELECT +15VDC -15VDC R83 10 GND A

8、GND B R84 10 C68 + 10 C67 + 10 +15 VDC !-15 VDC CH OUT Q1 H3-7 B50K cw cw B50K B50K B50K B50K B50K 2. ALL CAPACITORS ARE IN MICROFARADS EXCEPT AS NOTED. TREBLE 2/3 BASS 2/3 DRIVE 4 DRIVE 3 H4-1 H4-7 H1-4 H1-2 H4-4 H4-3 H4-5 H4-6 H1-1 H1-3 R79 R80 R81 R82 1K C1 C2 C3 C4 1K 1K 1K !-15 VDC D6 D5 D4 D3

9、H5-8 H5-7 H5-9 H5-5 H5-3 H5-4 H5-1 H5-2 H5-6 H5-10 GND A GND B cw cw B50K B50K cw cw cw cw LAST USED D6 Q7 P14 H4-8 GND A JMP 17 Channel Master 150Hz2K Hz 50 Hz6K Hz 4. ALL JFETs ARE 2N5638 EXCEPT AS NOTED. 30-00101 80-00101 CASCADE 4 CASCADE 3 FROM FROMTO TO H3-2H3-6 TUBE 2 H3-1 H3-5 TUBE 1 R38 4.7

10、K R39 R86 33K C37.0047 CH4-5 A7.A 2 !- 3 + 1 R87R88 C69 560K560K 10pF R4 CH4-7CH4-6 CH4-8 CH4-3CH4-4 S4R4 CH3-8 CH3-3CH3-4 S3R3 A8.A 2 !- 3 + 1 C48 N/U S3 R51 4.7K R52 R89 33K C49.0033 CH3-5 R3 CH3-7CH3-6 CH3-1CH3-2 CH4-1 CH4-2 JMP 17 A10.A 2 !- 3 +1 R90R91 C70 560K560K 10pF R69 10K R73 10K R91 C70 FROMTO FROMTO R1 A10 Schematic 84-00101 A C. McEuen N/U N/U N/UN/U N/UN/U N/U N/U B 12MAR92 N/U N/U 收音机爱好者资料库 Ra d i o Fa n s .CN