Nobels_ab1_switcher 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: 2 NOBELS: SWITCHER / AB-1 6 27-Jan-200019:26:36 R:$PROPEDSDSGNAB-1AB-1_ALL.SCH Title Size: Number: Date: File: Rev: Sheetof Time: A4 CIRCUIT DIAGRAM / MAIN SECTION All unspecified capacitors

2、in uF, resistors carbon 5%All rights reserved - Copyright NOBELS Electronics OUT A IN 2 / OUT B IN 1 to control PCB to control PCB to control PCB DC-POWER PON XOFF XON XOFF XON XON XOFF PON 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+ 2-pole wire to the external REMOTE j

3、ack C82 2.2 C51 47N 7 6 8 9 U1B 4558S C81 22N C61 2.2 D21 4148 C31 47N C12 2.2 3 21 Q81 K222E D31 4148 D41 4148 C71 2.2 D51 4148 R102 100K C101 1N R104 1M C102 10N D101 4148 2 1 3 SW101A SW2204 5 4 6 SW101B SW2204 R101 470K 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

4、12 3SN 9 U101 4007 1 2 JP2 SIP2 1 2 JP1 SIP2 D201 4001 C201 220 C202 100 C62 3.3 C72 3.3 3 4 2 15 U1A 4558S 3 2 1 J1 J8004 C11 47N 3 21 Q11 K222E R202 10K R201 8K2 R80 2M R82 2M R83 3K3 R81 33K R11 33K R12 1M R13 3K3 R15 330K R31 1M R85 330K R63 1K R62 12K R65 2K2 R64 200K R75 2K2 R74 200K R73 1K R7

5、2 12K R71 330K R51 1M R61 330K R203 100 1 2 3 JP4 SIP3 1 2 3 JP3 SIP3 3 2 1 J3 J8004 3 2 1 J2 J8004 3 21 Q31 K30AY 3 21 Q41 K30AY 3 21 Q21 K30AY 3 21 Q51 K30AY R103 100KC104 6N8 5 4 1 J5 J7001 2 1 B1 SNAP 1 2 JP5 SIP2 V- V-V- 1 2 3 JP4 SIP3 D1 GREENLED R1 1K5 R2 1K8 D2 REDLED SELECTOR SWITCH A-Level B-Level V- 1 2 JP1 SIP2 1 2 JP2 SIP2 13 2 P1 30KB 13 2 P2 30KB 1 2 3 JP3 SIP3 2 1 3 SW1A KSA2261 5 4 6 SW1B KSA2261 收音机爱好者资料库 Ra d i o Fa n s .CN