Alto-AComp-comp-sm 电路图维修手册.pdf

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1、Service Manual Version: 1.1 Model: COMP 24x32 Bit Digital Compressor Module RadioFans.CN 收音机爱好者资料库 CONTENTS 1. Specification 2. Block Diagram 3. Schematic Diagram 4. Printed Circuit Board 5. Wiring Diagram 6. Test Procedure 7. Electrical Parts List 8. Exploded Views & Mechanical Parts List 9. Notes

2、 RadioFans.CN 收音机爱好者资料库 1. SPECIFICATION (aCOMP) Electrical Frequency Response: +0.5 / -1.5 dB from 20Hz to 20 kHz S/N Ratio (process) 80 dB A wtg, 20 Hz-22kHz S/N Ratio (bypass) 90 dB A wtg, 20 Hz-22kHz THD+Noise: 500 Kohms A/D - D/A Conversions A/D converter: 1 bit Sigma-Delta D/A converter: 1 bi

3、t Sigma-Delta Output Number of Channels:2 Format:1/4 unbalanced Maximum Level (bypass): +9 dBu Output Impedance: LEFT input of the device under test. -LEFT output of the device under test - A input of Audio Precision System Two -RIGHT output of the device under test - B input of Audio Precision Syst

4、em Two On the Alphacomp: -Turn on the power switch. -Set INPUT volume to maximum. -Set OUTPUT volume to maximum. -Set PROGRAM to AGC PURE. -Set VARIATION to 1. Start the sweep (F9) and control the results (Page3 Graph) in the following conditions: -hardware bypass switch pressed. -hardware bypass sw

5、itch released. Audio Precision05/22/02 14:07:53 alfacomp_amplitude.at2c ColorLine StyleThickDataAxis CyanSolid1Anlr.Level ALeft GreenSolid1Anlr.Level BRight YellowSolid1Anlr.AmplLeft -10 +10 -7.5 -5 -2.5 +0 +2.5 +5 +7.5 d B V -10 +10 -7.5 -5 -2.5 +0 +2.5 +5 +7.5 d B V 2020k501002005001k2k5k10k Hz TH

6、D test On PC: -Load file: alfacomp_THD (APWin File menu / Open / Test ) Test Connections: -Output A of Audio Precision System Two - LEFT input of the device under test. On the Alphacomp: -Turn on the power switch. -Set INPUT volume to maximum. -Set OUTPUT volume to maximum. -Set PROGRAM to AGC PURE.

7、 -Set VARIATION to 1. Start the sweep (F9) and control the results (Page3 Graph) in the following conditions: -LEFT output of the device under test - A input of Audio Precision System Two / hardware bypass switch released. -RIGHT output of the device under test - B input of Audio Precision System Tw

8、o / hardware bypass switch released. Audio Precision05/22/02 14:10:23 alfacomp_THD.at2c ColorLine StyleThickDataAxis CyanSolid1Anlr.THD+N RatioLeft GreenSolid1Anlr.THD+N RatioLeft 0.1 1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 % 206k501002005001k2k Hz S/N test On PC: -Load file: alfacomp_SN (APWin File menu

9、/ Open / Test ) Test Connections: -Output A of Audio Precision System Two - LEFT input of the device under test. On the Alphacomp: -Turn on the power switch. - With hardware bypass switch in COMP position and both outputs connected to the Audio Precision, increase the INPUT level until the devices o

10、utputs clip, and after reduce the INPUT level itself until the outputs exit from clipping state. -Set OUTPUT volume to maximum. -Set PROGRAM to AGC PURE. -Set VARIATION to 1. Start the sweep (F9) and control the results (Page3 Graph) in the following conditions: -LEFT output of the device under test

11、 - A input of Audio Precision System Two / hardware bypass switch pressed. -RIGHT output of the device under test - B input of Audio Precision System Two / hardware bypass switch pressed. Audio Precision05/22/02 14:13:55 alfacomp_SN.at2c ColorLine StyleThickDataAxis CyanSolid1Anlr.AmplLeft GreenSoli

12、d1Anlr.AmplLeft -120 +20 -100 -80 -60 -40 -20 +0 d B V -1000.000+0-900-800-700-600-500-400-300-200-100 dBV PROCESSBYPASS Dynamics test On PC: -Load file: alfacomp_dyn (APWin File menu / Open / Test ) Test Connections: -Output A of Audio Precision System Two - LEFT input of the device under test. On

13、the Alphacomp: -Turn on the power switch. -Set INPUT volume to maximum. -Set OUTPUT volume to maximum. -Set PROGRAM to AGC PURE. -Set VARIATION to 1. Start the sweep (F9) and control the results (Page3 Graph) in the following conditions: -LEFT output of the device under test - A input of Audio Preci

14、sion System Two / hardware bypass switch pressed. -RIGHT output of the device under test - B input of Audio Precision System Two / hardware bypass switch pressed. Audio Precision05/22/02 14:17:59 alfacomp_dyn.at2c ColorLine StyleThickDataAxis CyanSolid1Anlr.THD+N RatioLeft GreenSolid1Anlr.Level ARig

15、ht GreenSolid1Anlr.THD+N RatioLeft YellowSolid1Anlr.Level ARight -7.5 +10 -5 -2.5 +0 +2.5 +5 +7.5 d B u -0 16 2 4 6 8 10 12 14 % -26-14-24-22-20-18-16 dBu BYPASS BYPASS PROCESS Stability test On PC: -Load file: alfacomp_stability (APWin File menu / Open / Test ) Test Connections: -Output A of Audio

16、Precision System Two - LEFT input of the device under test. -LEFT output of the device under test - A input of Audio Precision System Two -RIGHT output of the device under test - B input of Audio Precision System Two On the Alphacomp: -Turn on the power switch. -Set OUTPUT volume to maximum. -Set PR

17、OGRAM to AGC PURE. -Set hardware bypass switch to BYPASS (released). -Set VARIATION to 1. Test: Move the input level knob from 0 to maximum 3 times and control the output waveforms: NO PERMANENT SINE WAVEFORMS should be visible. IF PERMANENT WAVEFORMS WITH FREQUENCY 20 kHz should become visible on w

18、hatever output channel, THE UNIT IS TO BE INSPECTED. SEKAKU ELECTRON INDUSTRY CO.,LTD IEBO_P02IEBO_P02 Multi-Level BOM Structure Listing Report No.:IEBO_P02Date2003/08/20 Prepared by000011YAFENPage No.:1/9 Item No.PF00076VersionUNIT:PCS DESCRIPTIOaCOMPDate:2002/04/16 aCOMP_ALTO_230V_ VersionItem NoL

19、oss % Ver.UnitCardinalEffective Date Item DescriptionUsage Rate:Phantom Layer Component RemarkAttrition Rate 0001-MA029181.0000 2002/04/16 panel(white)PCS1N Comp LTO0.00 % 0002-MB016151.0000 2002/04/16 bottom boardPCS1N a verb0.00 % 0003-MC003711.0000 2002/04/16 top coverPCS1N aVERB0.00 % 0004-MB019

20、571.0000 2002/04/16 rear boardPCS1N a verb0.00 % 0005-NI003631.0000 2002/04/16 plastic knobPCS1N 21*160.00 % 0006-NI003623.0000 2002/04/16 plastic knobPCS1N (COOL GRAY 8C/white)0.00 % 0007-NI008963.0000 2002/04/16 knob cover-ABSPCS1N 8.5*4 bule 072C0.00 % 0008-NI003071.0000 2002/04/16 power sw botto

21、mPCS1N 15*120.00 % 0009-NI011601.0000 2002/04/16 power switch capPCS1N 14.5*10 YELLOW C0.00 % 0010-NI003141.0000 2002/04/16 power sw bottomPCS1N 6.5*16(inner 3.3*3.3)black0.00 % 0011-MG0002510.0000 2002/04/16 screwPCS1N M3*60.00 % 0012-MG001632.0000 2002/04/16 Ni-screwPCS1N M3*80.00 % 0013-MG000454.

22、0000 2002/04/16 screwPCS1N M3*70.00 % 0014-NI000025.0000 2002/04/16 nut of plastic-HC00108 Appendix PCS1N 7/16*G20/15*4.8(hexagon)0.00 % 0015-MF000142.0000 2002/04/16 outter gear washerPCS1N 3*6.5*0.5t0.00 % SEKAKU ELECTRON INDUSTRY CO.,LTD IEBO_P02IEBO_P02 Multi-Level BOM Structure Listing Report N

23、o.:IEBO_P02Date2003/08/20 Prepared by 000011YAFEN Page No.: 2/9 Item No.PF00076VersionUNIT:PCS DESCRIPTIOaCOMPDate:2002/04/16 aCOMP_ALTO_230V_ VersionItem NoLoss % Ver.UnitCardinalEffective Date Item DescriptionUsage Rate:Phantom Layer Component RemarkAttrition Rate 0016-HA013881.0000 2002/04/16 row

24、-wire connector wiringPCS1N 2P 1000.00 % 0017-NC001315.0000 2002/05/05 washerPCS1N 1*11.3*15.3 red0.00 % 0018-SA000651.0000 2002/05/05 L.E.DPCS1N LG2043 green0.00 % 0019-NI002402.0000 2002/05/05 sleeving flame retardant PCS1N 2.5*10mm0.00 % 0020-TG000231.0000 2002/05/05 voltage transformer PCS1N 230

25、V/50Hz_AC9V/300mA_ET-35_CE0.00 % 0021-NF001241.0000 2002/05/05 instructionPCS1N aCOMP0.00 % 0022-HJ000021.0000 2002/05/05 desiccantPCS1N 10g0.00 % 0023-NA001221.0000 2002/05/05 PE bagPCS1N 0.04t*350*230mmKG0.00 % 0024-NA001371.0000 2002/05/05 clip-chain bagPCS1N 5*70.00 % 0025-NI018251.0000 2002/05/

26、05 ZD-cushion-aVERB-10PCS1N 0.5*3.3*8.3 aVERB0.00 % 0026-NA001461.0000 2002/05/05 bubble bagPCS1N 13*160.00 % 0027-NI005014.0000 2002/05/05 foot cushionPCS1N 12.7*9*3t(SF-004)0.00 % 0028-NI020851.0000 2002/07/19 power switch fixed sleevePCS1N 22*9.69 072C blue0.00 % 0029-NE031181.0000 2002/07/19 pro

27、gram adhesive paper 12*9mmPCS1N aCOMP CKS:C47F0.00 % 0030-NB014801.0000 2002/07/19 colour boxPCS1N aCOMP ALTO0.00 % SEKAKU ELECTRON INDUSTRY CO.,LTD IEBO_P02IEBO_P02 Multi-Level BOM Structure Listing Report No.:IEBO_P02Date2003/08/20 Prepared by 000011YAFEN Page No.: 3/9 Item No.PF00076VersionUNIT:P

28、CS DESCRIPTIOaCOMPDate:2002/04/16 aCOMP_ALTO_230V_ VersionItem NoLoss % Ver.UnitCardinalEffective Date Item DescriptionUsage Rate:Phantom Layer Component RemarkAttrition Rate 0031-NB021411.0000 2002/12/05 outter carton 8 holePCS8N aVERB aCOMP aMICTUBE ALTO0.00 % 0032-MI004081.0000 2002/07/19 conduct

29、 electricity boardPCS1N aVERB0.00 % 0033-NE050084.0000 2002/07/19 ZC-bar shape code abhesive paper 30*11mPCS1N ACOMP 0.00 % 0034-NE050044.0000 2002/07/19 number bar shape adhevise paper 30*11mm PCS1N ALTO PF0.00 % 0035-HK003371.0000 2002/07/19 PC boardPCS1N P-aCOMP-DIP0.00 % 0001-RA002041.0000 2002/

30、04/16 fixed resistor 1/4WPCS1N 470 M type0.00 % R44 0002-CB000093.0000 2002/04/16 electrolytic capacitorPCS1N 1uF/50V 4*7mm0.00 % C29 C30 C31 0003-CB000245.0000 2002/04/16 electrotytic capacitorPCS1N 10uF/16V 4*7mm0.00 % R34 R37 R38 R5 R6 0004-CB000406.0000 2002/04/16 electrotytic capacitorPCS1N 47u

31、F/25V 5*11mm0.00 % C12 C13 C15 C16 C17 C8 0005-CB000391.0000 2002/04/16 electrotytic capacitorPCS1N 47uF/25V 5*11mm0.00 % C27 0006-CB000474.0000 2002/04/16 electrotytic capacitorPCS1N 100uF/25V 6*11mm0.00 % C1 C2 C3 C4 0007-CB000561.0000 2002/04/16 electrolytic capacitorPCS1N 220uF/25V 8*11mm0.00 %

32、C11 0008-CB000801.0000 2002/04/16 electrotytic capacitorPCS1N 2200uF/25V 16*25mm0.00 % SEKAKU ELECTRON INDUSTRY CO.,LTD IEBO_P02IEBO_P02 Multi-Level BOM Structure Listing Report No.:IEBO_P02Date2003/08/20 Prepared by 000011YAFEN Page No.: 4/9 Item No.PF00076VersionUNIT:PCS DESCRIPTIOaCOMPDate:2002/0

33、4/16 aCOMP_ALTO_230V_ VersionItem NoLoss % Ver.UnitCardinalEffective Date Item DescriptionUsage Rate:Phantom Layer Component RemarkAttrition Rate C10 0009-SA000942.0000 2002/04/16 rectifier diodePCS1N 1N4002/100V0.00 % D2 D3 0010-SD000741.0000 2002/04/16 integrated circuitPCS1N 7805(TO-220)0.00 % U2

34、 0011-SB000831.0000 2002/04/16 voltage stabilized transistorPCS1N 79L05(TO-92)0.00 % U3 0012-SC000021.0000 2002/04/16 quartz crystalloidPCS1N 11.0592MHZ HC-49/US 20PPM0.00 % Q1 0013-CN000261.0000 2002/04/16 indutorPCS1N 330uH(LGA0307-331K)0.00 % L3 0014-CG000185.0000 2002/04/16 filter-EMI FILTERPCS1

35、N LF-22UH(WAH TAYI)0.00 % L1 L2 L4 L5 L6 0015-HI000732.0000 2002/04/16 waveband switchPCS1N 288S01210.00 % 0016-HI000471.0000 2002/04/16 button SW(double link-action)PCS1N PS-9AN-022-18B long foot0.00 % SW1 0017-HI000511.0000 2002/04/16 key swith (double-link)PCS1N PS-9AN-022-18A0.00 % SW2 0018-RC00

36、0862.0000 2002/04/16 potentiometerPCS1N A10K*2 RV16A01-20-20F-A14-3010.00 % VR1 VR3 0019-HC001085.0000 2002/04/16 MIC jackPCS1N 6.3 stereo LJB0661-60.00 % PJ1 PJ2 PJ3 PJ4 PJ5 0020-HC001831.0000 2002/04/16 DC jackPCS1N SEKAKU ELECTRON INDUSTRY CO.,LTD IEBO_P02IEBO_P02 Multi-Level BOM Structure Listin

37、g Report No.:IEBO_P02Date2003/08/20 Prepared by 000011YAFEN Page No.: 5/9 Item No.PF00076VersionUNIT:PCS DESCRIPTIOaCOMPDate:2002/04/16 aCOMP_ALTO_230V_ VersionItem NoLoss % Ver.UnitCardinalEffective Date Item DescriptionUsage Rate:Phantom Layer Component RemarkAttrition Rate DJ-005A0.00 % J1 0021-S

38、A000531.0000 2002/04/16 L.E.D high intensityPCS1N 3m/m round(red)long foot 26mm0.00 % DL1 0022-NI017761.0000 2002/04/16 LED separating pillarPCS1N LED-3 3mm0.00 % 0023-HC000761.0000 2002/04/16 row-wire headerPCS1N 2P 2.5mm 1800.00 % DL2 0024-HC001341.0000 2002/04/16 row-pin(single)#1100PCS1N 2.54 18

39、0 2P(gold-plated) 6/11.6mm0.00 % JP2 0025-CG000241.0000 2002/04/16 filter-EMI FITERPCS1N PLT09H-2003R0.00 % L10 0026-MI002561.0000 2002/04/16 heat-sinkPCS1N 25*15*10.6-1PIN SCL-20200.00 % 0027-MG001601.0000 2002/04/16 Ni-screwPCS1N M3*6 P0.50.00 % 0028-MF000371.0000 2002/04/16 spring washerPCS1N 3*5

40、*1t0.00 % 0029-NC000051.0000 2002/04/16 silicone insulatorPCS1N TO-220 square type0.00 % 0030-NE031181.0000 2002/04/16 ZC-program adhesive paper 12*9mmPCS1N aCOMP CKS:C47F0.00 % 0031-HK015771.0000 2003/07/29 PC boardPCS1 P-aCOMP-AI0.00 % 0001-HA0192025.0000 2003/07/14 jumper wirePCS1N 6mm0.00 % JP10

41、 JP11 JP12 JP13 JP14 JP16 JP17 JP18 JP19 JP20 JP21JP22 JP23 JP24 JP26 JP3 JP37 JP42 JP47 JP48 JP49 JP50 JP64 JP70 JP8 0002-HA0192219.0000 2003/07/14 jumper wirePCS1N SEKAKU ELECTRON INDUSTRY CO.,LTD IEBO_P02IEBO_P02 Multi-Level BOM Structure Listing Report No.:IEBO_P02Date2003/08/20 Prepared by 0000

42、11YAFEN Page No.: 6/9 Item No.PF00076VersionUNIT:PCS DESCRIPTIOaCOMPDate:2002/04/16 aCOMP_ALTO_230V_ VersionItem NoLoss % Ver.UnitCardinalEffective Date Item DescriptionUsage Rate:Phantom Layer Component RemarkAttrition Rate 8mm0.00 % JP27 JP28 JP29 JP30 JP31 JP32 JP33 JP34 JP35 JP36 JP39 JP4 JP40 JP41 JP5 JP6 JP67 JP7 JP9 0003-HA019254.0000 2003/07/14 jumper wirePCS1N 10mm0.00 % JP25 JP43 JP44 JP45 0004-HA019288.0000 2003/07/14 jumper wirePCS1N 12mm0.00 % JP46 JP51 JP52 JP53 JP54 JP62 JP