Carvin_channel_master 电路图 维修原理图.pdf

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1、2. ALL CAPACITORS ARE IN MICROFARADS EXCEPT AS NOTED. 3. ALL DIODES ARE 1N4003 EXCEPT AS NOTED. 1. ALL GROUNDS ARE A EXCEPT AS NOTED. 4. ALL JFETs ARE 2N5638 EXCEPT AS NOTED. NOTES: UNLESS OTHERWISE SPECIFIED Schematic 84-00101 cascade cloaking John L. Murphy Channel Master Used for post CH1 /CH4 IN

2、 CH2 /CH3 IN Quad X-Amp TREBLE 2/3 EFF SND 1 EFF RTN 1 EFF SND 2 EFF SND 3 EFF SND 4 EFF RTN 2 EFF RTN 3 EFF RTN 4 CH SELECT LAST USED CASCADE 4 CASCADE 3 VOLUME 1 VOLUME 2 VOLUME 3 VOLUME 4 BASS 2/3 30-00101 80-00101 24JUN91 15 VDC DRIVE 4 DRIVE 3 15 VDC +15 VDC TREBLE TREBLE 1B100K 1B100K 1B100K 1

3、B100K +15VDC -15VDC CH OUT TUBE 2 TUBE 1 .0022 330pF A100K A100K .0047 .0022 .0022 .0047 .0022 .0022 .0022 A10.B .01 .0033 GND A GND B H5-10 GND A GND B GND A JMP 6 3K Hz 50 Hz6K Hz .0033 CH4-4 CH3-4 .0033 A10.A JMP 6 330pF N/U A5.B A1.B N/U 4.7K 4.7K 100K 330 A3.B N/U N/U 100K 39pF 330 A6.B .001 1.

4、5K 560K560K 1.5K BASS 6.8K .047 .022 6.8K 10pf 4.7K A7.B .001 1.5K 560K560K 1.5K BASS 6.8K .047 .022 6.8K 10pf 4.7K A9.B .001 1.5K 560K560K 1.5K 6.8K .047 .022 6.8K 10pf 4.7K A5.A 27pF A4.B 27pF A8.B 82pF A2.B 82pF A4.A 10K .0068 A2.A A3.A .0022 A9.A 100K 56pF 100K A6.A 100K 56pF 100K 100K H4-2 H3-8

5、 H3-4 A1.A H3-3H3-7 B50K B50K B50K B50K B50K B50K H4-1 H4-7 H1-4 H1-2 H4-4 H4-3 H4-5 H4-6 H1-1 H1-3 H5-8 H5-7 H5-9 H5-5 H5-3 H5-4 H5-1 H5-2 H5-6 B50K B50K H4-8 90Hz FROM FROM H3-2H3-6 H3-1H3-5 100K 4.7K A7.A 560K560K 10pF A8.A 47K 4.7K 560K560K 10pF FROM FROM JMP5 JMP1 JMP2 POST JMP3 POST JMP4 POST

6、H4-9 150K N/U .022 .022 1K N/U 8.2K N/U .01 R18 C17 R17 C18 C15 C16 C19 R19 R16 10K 10K .01 .1 R20 R27R28 R36R35 C33C32 C34 R33R32 C31 15K15K C30 R30R29 C28MID C29 R31 R37 R34 22K 22K R40R41 R49R48 C45 C44 C46 R46 R45 C43 15K 15K P11 P10 C42 R43 R42 C40 MID C41 R44 R50 R47 22K 22K R61R62 R67R66 C59

7、C60 P14 C58 R64R63 C56 P13 C57 R65 R68 22K C25 R25R24 C24 10K15K .01 C26 C22 C50 P12 C38 C21 R22 R21 C20 15K .068 C36 R26 33K C27 R23 33K R85 22K C39 .01 R12 R13 100K N/U C14 R15 5.6K C13 C51 R53 15K C53 C52 R57 .01 R5633K C54 R60 .01 R54 33K R58 33K C23 C55 R76 10K C47 C35 R55 33K R59 33K C64 C62 R

8、72 .01 R7122K C65 R75 .01 C63 C66 R78 .01 R70 10K R74 10K R77 10K C61 R11 22K C10 0.1 R10 10K R83 10 R84 10 C68C67 R79 R80 R81 R82 P14 R38 47K R39 R86 C37 R87R88 C69 C48 R51 6.8K R52 R89 C49 R90R91 C70 R69 10K R73 10K A10 PRE PRE C76 R95 C73 R92 C74R93 C71 C72 C75 R94 R95 C76 N/U N/U N/U N/U N/U N/U

9、 R1 R2 R7 C4 C7 P1 R4 R6 C8 C5 C6 R8 R5 0.1 cw R9 P2 10 cw P5 P6 P7 P9 .1 P4 cw P3 cw cw P8 cw .1 10 Q2 10 C3 10 Q3 Q4 0.1 10 10 10 S1 R1 S2 R2 S3 R3 S4 R4 S1 S2R2 S4 C2 C3C3 C4 Q5 Q6 10 Q7 D2 D1 10 C9 C1 C2 C3 C4 1010 Q1 cw cw 1K C1 C2 C3 C4 1K 1K 1K D6 D5 D4 D3 cw cw cw cw cw cw D6 TO TO R4 S4R4 S

10、3R3 .1 S3R3 TO TO R1 Q7 6 5 +7 6 5 + 7 6 5 +7 6 5 + 7 6 5 +7 6 5 +7 2 3 +1 6 5 +7 6 5 +7 6 5 +7 6 5 + 7 2 3 +1 2 3 + 1 2 3 +1 2 3 +1 2 3 +1 2 3 +1 + + 2 3 +1 2 3 +1 2 3 +1 C 5. ADDED AS SECONDARY OPERATION. C. McEUEN CH4-5 CH4-3 N/U N/U CH4-6CH4-7 N/UN/U C1 0.22 CH4-8 N/U S4 R3 8.2K CH3-5 N/U CH3-3 N/U CH3-8 N/U C11 0.22 R14 5.6K CH3-6CH3-7 N/UN/U C12 S3 C2 12340 WORLD TRADE DR. SAN DIEGO, CA 92128 (619) 487-1600 FAX 487-6629 REVISED BY: APPROVED: DRAWN BY: DATE: DATE: ASSY. DATE: ARVIN REV: REV: NO: PCB NO: C M 2APR96 收音机爱好者资料库 Ra d i o Fa n s .CN