Little_mark_combo 电路图 维修原理图.pdf

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1、收音机爱好者资料库 Ra d i o Fa n s .CN 收音机爱好者资料库 Ra d i o Fa n s .CN 收音机爱好者资料库 Ra d i o Fa n s .CN 123456 A B C D 654321 D C B A 1 Parsek s.r.l. via Aterno, 30 66020 S.Giovanni Teatino Chieti ITALY2 Little Marl II 20-Oct-200517:58:14 Sheet1.Sch Title Size:Number: Date: File: Revision: SheetofTime: B R2 18K V

2、1 -V1 R17 1M CN1 V1 R9 4.7K C3 100p 1 2 3 P147K LOG R3 33K C1 47n C2 100p -V1 R18 3.3K R4 22K R7 22K LEVEL1 R8 22K C5 100p R16 1M R5 22K R6 22K 1 2 3 4 CN2 C8 0.1u 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CN5 SEND-EFF RETURN S-MIX(+) S-MIX(-) TUNER OUT-POST IN-EQL IN-DIRECT OUT-POST 1 2 3

3、CN6 C6 2.2u 3 2 1 84 IC1A TL072 5 6 7 IC1B TL072 3 2 1 84 IC2A TL072 D1 9.1V 1/4W R1 470 D2 9.1V 1/4W C11 1u C12 1u R13 47K 2 3 1 84 IC3A C447p R14 47K R23 22K V1 -V1 R12 33K C10 0.47u RETURN IN-EQL LEVEL3 1 2 CN3 IN-EQL 5 6 7 IC2B TL082 R21B 15K C15 0,47u C14 0,47u R20A 10k Sub R15 100 LEVEL2 R22 2

4、2K R19 3.3K SEND-EFF TUNER C9 0.1u R27 10K C13 0.33u R10 4.7K C7 10u D5 D4 D7 LEVEL1 LEVEL3 D3 LEVEL2 R29 10K R32 1.5K C17 0.1u R25 22K V+15 12 D10 LED D9 6.2V 1/4WD6 OUT-POST LEVEL4 1 23 T1 BC846 R11 3.9K R30 22K R33 2.2K R28 10K R24 22K R31 1.8K C16 220p IN-DIRECT 5 6 7 IC3B TL072 SEND-EFF D8 LEVE

5、L5 S-MIX(+) S-MIX(-) 1 IC1_1 1 IC1_7 1 IC2_1 1 IC2_7 1 Tuner 1 Send_Eff 1 IC3_1 1 Mix(+) 1 Mix(-) 1 T1_b 1 Return 1 Input R21A 22K 1 2 3 4 5 6 7 8 CN4 CON8 S-MIX(+) S-MIX(-) RETURN C52 1u C58 1u R26 1M R21 1M C59 1u R20B 8.2K 1 2 CN9 Combo 1 2 CN10 Combo D12 12V D13 12V 123456 A B C D 654321 D C B A

6、 2 Parsek s.r.l. via Aterno, 30 66020 S.Giovanni Teatino Chieti ITALY2 Little Mark II 20-Oct-200517:58:01 Sheet2.Sch Title Size:Number: Date: File: Revision: SheetofTime: B R35 47K C19 33p R34 47K V1 -V1 C18 47n R57 15K C49 15n R58 15K R37 47K C20 47p R36 47K C24 6.8n R39 47K C28 33n C27 33n R47 2.2

7、kR38 47K R49 15k C26 6.8n C25 6.8n R46 2.2K V1 -V1 R41 47K C22 33p 1 2 5 4 IC7 H1AA1 -V1 C57 2.2u R71 1M R69 1MR70 1M R48 2.2k R72 120 R65 1K R59 22K R51 220 C23 33p IN-EQL LEVEL3 1 2 3 P2 POT1-S 1 2 3 P3 POT1-S 1 2 3 P4 POT1-S 1 2 3 P6 POT1-S 1 2 3 P5 POT1-S LEVEL5 OUT-POST OUT-POST R42 47K C48 3.3

8、n C51 2.2n R40 47K C50 470p 3 2 1 84 IC4A TL072 5 6 7 IC4B TL072 3 2 1 84 IC5A TL072 5 6 7 IC6B TL072 R60 68K C21 33p R68 15K C53 22n C55 4.7n R66 100K 1 2 3 P8 Warm C56 3 2 1 84 IC6A TL072 R63 27K R61 68K R62 27K C54 4.7n R67 15K R44 100 R52 330 C52A10n R53 330 R54 47k C29 10n 5 6 7 IC5B TL072 1 2

9、3 P7A 4 5 6 P7B R50 220 12 3 T3 J112 12 3 T2 J112 R55 4.7 R56 4.7 C30 100u C31 100u C34 0.1u C40 0.1u C35 0.1u C42 0.1u V+15 V-15 V1 -V1 C36 0.1u C43 0.1u C37 0.1u C44 0.1u C38 0.1u C45 0.1u C39 0.1u C46 0.1u R45 100 1 2 3 4 CN7 1 2 3 4 5 6 7 8 9 10 CN8 + V+15 V-15 V+22 C32 100uF 35V C33 100uF 35V C

10、41 0.1u C47 0.1u R64 1.5K 12 D11 LED V-15 V+15 V1 -V1 1 IC4_1 LEVEL4 1 IC4_7 1 IC5_1 R73 100 1 IC5_7 1 IC6_7 1 T2_Vg 1 +V1 1 -V1 1 IC6_1 1 TP5 GND 1 TP6 GND 1 Out 1 TP3 GND 1 TP4 GND 1 TP1 GND 1 TP2 GND 1 TP7 GND C52B10n 1 TPX GND GND_SUPP C60 1uF C62 0.1uF C6110u 12345678 A B C D 87654321 D C B A 1

11、 Parsek s.r.l. via Aterno, 30 66020 S. Giovanni Teatino Chieti Italy2 Ampli Lineare e Protezioni - DA500 13-Sep-200621:12:49 F:PRSKEraSWITCHINGAmpli LineareEdizione_07_05Schemi per assist_Ampli_DA500_07_05.DDB - Ampli.Sch Title Size:Number: Date: File: Revision: SheetofTime: A3 1 23 T1 MMBT5551 1 23

12、 T3 MMBT5401 1 23 T4 MMBT5401 1 23 T5 MMBT5401 1 23 T2 MMBT5551 1 23 T6MMBT5551 1 23 T13 MMBT5551 1 23 T12 MMBT5401 R6 R4R5 R7 R37 R9R8 R12 R11R10 R13 R39 R14 4.7K 12 3 T7 MJE350 12 3 T11 MJE350 12 3 T8 MJE340 12 3 T10 MJE340 R15 220 R16 220 C3 47pF C5 47pF 1 23 T9 BC846 1 2 3 TRIM1 R17 8.2K R38 15

13、C4 1uF R18 732 R19 680 R20 680 D4 6.2V D3 6.2V D6 6.2V D5 6.2V TI1 IRFP240 TI2 IRFP240 TI3 IRFP240 TI6 IRFP9240 TI5 IRFP9240 TI4 IRFP9240 R22 220 R23 220 R21 220 R24 220 R25 220 R26 220 R27 0.33 R28 0.33 R29 0.33 R30 0.33 R31 0.33 R32 0.33 R35 47K R33 C80.1u R34 715 C7A 100uF C7B 100uF R36 4.7 C6 47

14、nF/250V R65 68K +12PROT C29 1uF/63V 12 3 T18 BD681 + C32 100uF/35V R681M 1 23 T21 BC856 1 32 T19 2N7002 1 32 T20 2N7002 1 2 CN1 Speaker Out1 1 2 3 45 RL1 RL_OUT_1 +18V D18 1N4007 OUT SourceH SourceL CTLB 11 CTLA 3 RST A 4 RST B 10 THR A 2 THR B 12 TRIGA 6 TRIGB 8 OUT A 5 OUT B 9 DISC A 1 DISC B 13 V

15、CC 14 GND 7 IC3 NE556N R54 10K R59 100 C19 0.1uF/63V C20 0.1uF/63V C21 0.1uF/63V R70 10K +12PROT+12PROT +12PROT C22 0.1uF/63V R58 10K R57 10K t MV-RT1 10K R53 1.2K +12PROT 3 2 1 84 IC1A NE5532 5 6 7 IC1B NE5532 +15V C75 1n/63V R43 R44 R45 C13 1n/63V R47 C24 150p C15 0.1uF/63V R67 150 5W R64 100K R41

16、R40 -15V C16 0.1uF/63V + C23 10uF/35V 5 6 7 IC2B NE5532 +15VC17 0.1uF/63V -15V C18 0.1uF/63V R50 C25 10nF/63V 3 2 1 84 IC2A NE5532 R48 -15V R51 C26 10nF/63V R49 +15V D2 1N4148 D1 1N4148 R46 R42 C14 1n/63V R52 4.7K R56 10K D12 1N4148 D11 1N4148 D131N4148 D14 1N4148 1 23 T16 BC846 D10BZV55C5V1 D9 BZV5

17、5C5V1 + C31 100uF/35V Prot_I Vout Vout C27 1uF/63V OUT SourceHSourceL INPUT R2 1K C1 1uF C2 180pF R3 47K 12 3 T14 J112 DIS R60 180K R63 220K -15V DISProt_I C30 100uF D7 1N4007 D8 1N4007 C9 33uF C11 33uF C10 47n/250V C12 47n/250V +80VDC -80VDC +15V -15V R62 2.2K 12 D16 R61 2.2K 12 D15 R1 1M 12 3 T25

18、MJE340 1 23 T17 BC846 (1a) R87 1.2K C76 0.1uF/63V 1 2 CN3 1 2 CN4 C38 10uF/35V Vin 1 GND 2 +12V 3 RG4 LM7812CT +15V C37 0.1uF/63V +12PROT V-FAN -80Vamp +80Vamp 1 2 3 4 CN-Test CON4 1 V- 1 I. 1 V+ 1 12VP R66 150 2W D17 5.1V 1 2 J1 CON2 1 32 T26 2N7002 R55 10K C28 10uF/25V 1 2 3 4 CN2 CON4 D22 1N4148

19、C42 100nF R75 OUT I-I Sum 1 2 3 TRIM2 2K 1 32 T15 2N7002 I-I R82 1K Prot_I 12345678 A B C D 87654321 D C B A 2 Parsek s.r.l. via Aterno, 30 66020 S. Giovanni Teatino Chieti Italy2 Switching Power Supply - DA500 13-Sep-200621:12:50 F:PRSKEraSWITCHINGAmpli LineareEdizione_07_05Schemi per assist_Ampli_

20、DA500_07_05.DDB - Supply.Sch Title Size:Number: Date: File: Revision: SheetofTime: A3 1 23 T22 IRFP27N60K 1 23 T23 IRFP27N60K D31 BYV27-200 1 1 2 2 3 3 4 4 L1 3.3mH/6A MV-VR1 275L40 C33 1uF/275Vac_X2 C35 4.7nF/Y1_X2 C36 4.7nF/Y1_X2 3 1 4 2 BR1 800V/5A C39 1000uF/200V C40 1000uF/200V 1 2 JP1 110/220

21、Vdc C68 1uF/250V C49 220uF 2 1 3 D25 BYV32E 2 1 3 D26 BYV32E 2 1 3 D24 BYV32E C73 22uF/350V Tr1 TRANS5_1_1 R78 270K R76 10 D34 BYV27-200 D39 BYV27-200 C67 10nF/63V C72 330pF R74 18K 1 2 3 CN6 2 1 3 D27 BYV32E C47 1mF C50 220uF C48 1mF R80 47 D32 BYV27-200 R77 10 C69 10uF/25V D21 ZENER3 C70 100uF/25V

22、 D40 LL4148 L3 3uH C45 1mF C46 1mF L4 3uH Vin 1 GND 2 +15V 3 RG1LM7815CT Vin 2 GND 1 -15V 3 RG2 LM7915CT + C64 2200uF + C65 2200uF C57 1uF/63V C58 1uF/63V + C61 100uF/25V + C62 100uF/25V C53 100nF/63V C54 100nF/63V 35V D29 BYV27-200 D30 BYV27-200 D33 SF22 Vin 1 GND 2 +15V 3 RG3LM7812CT + C66 100uF C

23、60 1uF/63V + C63 100uF/25V C59 100nF/63V 35V 1 J3 1 J8 1 J6 1 J7 C52 1uF/63V D23 200V/1W D28 220V/1W R79 470K C34 47nF/275Vac_X2 C56 1uF/63V C55 1uF/63V C74 22uF/350V F1 F2 F3 1 2 3 4 5 6 7 8 9 10 CN7 + +15V -15V INPUT R84 47K R86A 330K D37 LL4148 D38 1N3212 L9 22uH L6 22uH L8 22uH L5 22uH L7 22uH +80VDC -80VDC +15V -15V +18V +12V R73 2.2K 12 D20 -15V t MV-RT2 2.5Ohm 1 J9 1 J10 + C41 10uF/25V V-FAN R86B 330K 1 +15V 1 -15V1 +18V D35 ZENER3 1 2 CN5 Rete 1 32 T24 2N7002 R69 330K R71 330K H 7 L 5 Vb 8 Rt 2 Vs 6 VCC 4 COM 1 en 3 C51 1uF Driver IC5