Nobels_chd_chorus 电路图 维修原理图.pdf

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1、123456 A B C D E F 654321 F E D C B A 1 12%(/6?(/(&7521,&6 Barnerstrasse 42, 22765 Hamburg, Germany - email: 1 digital Stereo Chorus / CH-D 3 4-Feb-2000 16:44:20 D:$PROCH-D_SM.SCH Title Size: Number: Date: File: Rev: Sheetof Time: A4 CIRCUIT DIAGRAM All unspecified capacitors in uF, resistors carbon

2、 5%All rights reserved - Copyright NOBELS Electronics SPEED CLOCK adj. 2.5MHz at INPUT RESONANCE LEVEL EFX INT. min. REMOTE X-GND CLIP / ON - LED TIME SW clock STEREO OUTPUT PON PON Clip Clip V+ V+ V- V+ V+Vd+ Vd- Vd- Vd+ Vd- Vd+ Vd+ Vd- Vd- Vd+ V+ V- V-Vd- V-Vd- V- Vd- Vd- V- Vd- Vd+ Vd- V- V+ V-V-

3、 V- V-V- V-V- V+ V- V- V- V-V- V- V+ V+ V- V- V+ V+ V- V- V- V- V-V-V-V- V+ V- Vd- Vd+ Vd- V- C10 47 C801 470 C804 100 AVCC 24 F1I 23 F1O 22 OP1O 21 OP1I 20 REF 19 CC1 18 CC2 17 OP2I 16 OP2O 15 F2IN 14 F2O 13 VDD 1 OSCI 2 OSCO 3 DEL1 4 DEL2 5 DEL3 6 DEL4 7 MODE 8 MUTE 9 MUTET 10 DGND 11 AGND 12 U2 M

4、50198P C803 1 C603 47 R606 100K R104 1M R103 100K R102 100K C102 10N C101 1N R101 470K 5 4 6 SW101B SW2204 2 1 3 SW101A SW2204 C202 6N8 C203 1 R202 1M 3 21 Q1 K222E R203 3K3 R204 5K1 R207 3K3 R208 6K2 C502 2.2 R502 22K R501 22K R504 22K R505 22K C504 6N8 C505 6N8 C11 2.2 C506 33 C507 33 3 2 1 J1 J80

5、04 C503 6N8 R508 5K1 3 2 1 J3 J8004 R506 5K1 R509 22K R507 22K R512 100K R511 22K D801 4001 R608 22K R605 47K R201 33K R514 100K R503 22K C201 39N 6 5 7 U5B 358 2 3 1 84 U5A 358 R610 1K R611 15K C802 47 R802 100K C604 33P C103 47 R3 15K R4 10K R5 15K R7 15K R510 5K1 R210 33K R212 10K R214 22K R211 1

6、0K C211 1 D601 4148 R105 470 R801 100K C702 1 R702 22K C701 10R701 2K2 R704 2K2 D701 1N60P 3 2 1 J4 J8004 R106 4K7 R805 10 R804 3K9 12 D101 4148 I 1 O 3 - 2 U8 7805 R803 100 1 2 JP4 SIP2 1 2 3 JP5 SIP3 1 2 3 JP2 SIP3 1 2 3 JP7 SIP3 1 2 JP3 SIP2 3 21 Q4 C2362G 3 21 Q3 C2362G 3 21 Q2 C2362G R206 22K R

7、1 47K R2 20K C2 4N7 R215 47K R602 10K C601 3.3 1 2 3 JP1 SIP3 R703 470 R213 12K R216 10K C212 4N7 C208 3N9 C9 4N7 C3 560P R6 10K C8 560P C5 0.47 C6 0.47 C4 0.1 C7 0.1 C205 0.1 R205 22K C1 1 C602 0.1 FC 13 CX1 3 CX2 4 RX1 11 RX2 12 OGND 1 GND 7 EN 5 OVCC 14 VCC 9 RNG 2 Z 8 Y 6 U6 74LS628 1 JP8 MP1 13

8、 2TP1 5KB C209 1N C104 6N8 C210 3.3 C206 2N7 C207 5N6 R209 10K R513 2K2 R515 2K2 5 4 1 J5 J7001 R612 3K3 2 1 B1 SNAP 3 4 2 15 U1A 4558S 7 6 8 9 U3B 4558S 3 4 2 15 U3A 4558S 7 6 8 9 U1B 4558S 7 6 8 9 U4B 4558S 3 4 2 15 U4A 4558S C204 0.1 C807 100N C806 100N C805 100N R609 16K R604 30K 5ms20ms TIME SW

9、 2 3 1 4 5 SW801A KSA2440 7 8 6 9 10 SW801B KSA2440 D802 4148 D803 4148 D804 4148 D805 4148 1 2 3 JP5 SIP3 RESONANCE 1 2 3 JP1 SIP3 13 2 P1 30KC EFX-LEVEL 1 2 3 JP2 SIP3 13 2 P2 50KB SPEED 13 2 P3 1MC 1 2 JP3 SIP2 CLIP / ON LED D702 GREENLED 1 2 JP4 SIP2 INTENSITY SPEED-LED Vd- Vd-Vd- 13 2 P4 50KA D602 REDLED R613 1K R607 10K 1 2 3 JP7 SIP3 1A 3 2A 6 3A 10 1SP 2 1DP 1 1DN 5 1SN 4 VDD 14 2DP 13 2DN 8 VSS 7 3SP 11 3Y 12 3SN 9 U101 14007 收音机爱好者资料库 Ra d i o Fa n s .CN