Akai-AJC3150R-cs-sm维修电路原理图.pdf
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1、PageCONTENTSPORTABLE CD SYSTEMAJ-C3150RSpecifications & Performance Specifications . 3Electrical Parts List . 6Printed Circuit Boards . 13Wiring Diagram . 15Schematic Diagrams . 17Alignment Set-up Procedures . 21Equipment Connection Diagrams . 22Voltage Chart . 24IC Lead Identification and Internal
2、Diagrams . 26Block Diagrams . 30Exploded Drawing Parts List . 32Exploded Drawing . 34PRODUCT SAFETY NOTICEMany electrical and mechanical parts in this chassis have special safety characteristics.These safety characteristics often pass unnoticed and the protection afforded by them cannotnecessarily b
3、e obtained by using replacement components rated for higher voltage, wattage, etc.Replacement parts that have these special safety characteristics are identified in this manualand its supplements; electrical components having such features are identified by in theschematic diagram and the parts list
4、.Before replacing any of these components, read the parts list in this manual carefully.The use of substitute replacement parts that do not have the same safety characteristics asspecified in the parts list may create shock, fire or other hazards.RadioFans.CN 收音机爱 好者资料库3Power Supply: AC 230V 50Hz Ou
5、tput Load: 8 ohm non-reactiveReference Output: 50mWInput Signal Source: IRE Loop for AM75 ohm Dummy For FMModulation: 30% 400Hz for AM 22.5kHz Deviation 1000Hz for FM Remarks: 7.5kHz Pilot Tone67.5kHz L+R 1000HzAC Bias GENERAL TEST CONDITION(FM) SECTION, FREQUENCY, MODULATIONUNITNOMINALLIMIT1. Tunin
6、g RangeMHz87.5 - 108-2. I. F.MHz10.70.33. 30dB S/N90.1MHzmV222898.1 MHzmV2228106.1MHzmV22284. -3dB Limit Sens.dB25305. I. F. Rej. 98.1MHzdB60506. Image Rej. 106.1MHzdB30187. Spurious Rejection (F + 0.535 MHz)dB4035(Max. Sens. + 6dB)8. AM Suppression(60dB I/P)dB30209. Mod. HumdB-4510. Distortion at 1
7、mV/m (Mono)%1311. Audio Fidelity, (-3dB) (Pre-emphass) (50S)Hz60/9000120/600012. Dev. 40kHz 10% THDW10.813. Low Voltage AC%808514. S/N Ratio at 1mV/m Dev. (Mono)98.1MHzdB504015. Stereo SeparationdB262216. 19kHz Leak CarrierdB322717. Stereo LED IndicationdB263018. Step FrequencykHz-5019. Low Voltage
8、DC%6570REMARKS:NOTE: All measurement should be done at Bypass mode without X-Bass/Tone/ . effects.TEST ITEMSGERENALPower Source:AC 120V 60Hz (USA & CANADA):AC 220V 50Hz (China):AC 230V 50Hz (Europe & Hong Kong):AC 240V 50Hz (Australia):DC 12V (8xC size or UM-2 batteries)Power Consumption12WSpecifica
9、tions subject to change without notice.SPECIFICATIONSPERFORMANCE SPECIFICATIONSRadioFans.CN 收音机爱 好者资料库4CD SECTIONUNITNOMINALLIMIT1. 10% Dis. Output Power (1kHz, 0dB) W10.82. Frequency Response (100Hz-20kHz / 1kHz, 0dB) dB243. De-emphasis Response (1kHz, 0dB / 5kHz-4.5dB / 16kHz-9dB)dB344. Channel Ba
10、lance (1kHz, 0dB)dB0.535. Channel Separation (1kHz, 0dB)dB55406. T.H.D. + Noise (1kHz, 0dB)%0.150.57. S/N Ratio (1HF-A) (1kHz, 0dB)dB70608. Playability: Wedge PHILIPS 444Am-500 Black DotPHILIPS 444Am600500 EccentricityTCD - 712ABEXm-150 Skew Disc TCD - 731 RABEmm-0.5 Finger PrintPHILIPS 444ATrack-No
11、.18*with external A Weighting FilterItem 1 - 4 Test Disc CBS SONY YEDS7Level Matching Tape (B112BN)dB0 CD (-10dB 1K)dB0+3/-5 AM (55% 5mV/m) dB03 FM (40kHz 1mV)dB03TEST ITEMS(AM) SECTION, AMPLITUDE, MODULATIONUNITNOMINALLIMIT1. Tuning RangekHz522 - 1620-2. I. F.kHz45033. S/N 5mV/m0.999MHz dB36304. Se
12、ns. (at S/N 20dB)0.603MHzdBV60660.999MHzdBmV60661.404MHzdBmV60665. I.F. Rej. 0.603MHzdB40306. Image Rej. 1.404MHzdB32267. Spurious RejectiondB35258. Bandwidth, -6 dB, at1.404MHzkHz64 - 9(Max. Sens. +6 dB)9. ACA (9 kHz) Input 0.999MHzdB201010. AGC Figure Merit100mV/mdB504011. Distortion, 5mV/m, 30%13
13、 80%3612. 10% THD Power AC 55% Mod.W10.813. Audio Fidelity, Centre (6) dBHz60/2200140/200014. Low Voltage AC%808515. a. Mod. Hum 10mV/mdB3428b. Hum at Min. Vol.mV0.5216. Auto Stop Sens.dB647017. Step FrequencykHz-918. Low Voltage DC%6570REMARKS:NOTE: All measurement should be done at Bypass mode wit
14、hout X-Bass/Tone/ . effects. TEST ITEMSPERFORMANCE SPECIFICATIONS - CONTINUEDRadioFans.CN 收音机爱 好者资料库5CASSETTE SECTIONUNITNOMINALLIMIT1. Tape Speed (B-111LNA)Hz30003% / -3%2. Wow & Flutter Rms (JIS R.M.S.) (B-111LNA)%0.350.453. Fast Forwards TimeSec.110100 - 1804. Rewind - TimeSec.110100 - 1805. Freq
15、uency Response B-257 (1kHz, 0dB) 125HzdB366.3kHzdB366. Signal to Noise in Play (B-112BN)dB45357. Separation (MTT-141N) dB40308. Cross Talk (B-121N) w/BPFdB40359Erase Ratio w/ BPFdB322610. Play Back Distortion (B-118N)%1311. Rec. / Playback S/N Ratio (FM 1mV 75kHz Dev.) w/BPFdB322612. Rec. / Playback
16、 Level Difference (Radio)dB-313. Play Back 10% Distortion-output PerW10.8Channel (B-112BN)14. Record Play Back Distortion (S.R.L. + 20)%3815. ALC Effect Level (55% Mod., 74dB MW)dB-516. Recovery TimeSec.-517. VR Min. Hum & Noise (Motor On) w/o TapemV0.5318. VR Max. Hum & Noise (Motor On) w/o TapemV3
17、05019. Rec. / Play Frequency Response 125Hz, 6.3kHzdB-6TEST ITEMSPERFORMANCE SPECIFICATIONS - CONTINUEDRadioFans.CN 收音机爱 好者资料库6Ref. No.DescriptionMfrs Part No.Qty.PCBMAIN PCBPCB CD1831T-02-01 (94HB)033-001831-4001KEY & DISPLAY PCBPCB CD1831T-02-02 (94HB)033-001831-4001BATTERY PCBPCB CD1831T-01-03 (9
18、4HB)033-001831-4001BATTERY PCBPCB CD1831T-01-04 (94HB)033-001831-4001RECTIFIER PCBPCB CD1790-01-07 (94V0)033-001790-1001CD PORTION RESISTORS All are +-5% 1/16w (1/8w) tape & wheel resistors unless otherwise specifiedD102 R140*CdF RESISTOR 10 ohm001-010051-0162R920*CdF RESISTOR 100 ohm001-010151-0161
19、R103,114,115,116,117,151,153,922*CdF RESISTOR 1 Kohm001-010251-0168R108,109,111,123,124,129,139,155,*CdF RESISTOR 10 Kohm 001-010351-01614159,160,161,163,165,166R120,190*CdF RESISTOR 100 Kohm 001-010451-0162R156*CdF RESISTOR 1.5K001-015251-0161R128*CdF RESISTOR 15 Kohm001-015351-0161R143,146RESISTOR
20、 150 Kohm 001-015451-0162D101*CdF RESISTOR 22 ohm001-022051-0161R102,107,150*CdF RESISTOR 2.2 Kohm001-022251-0163R105,106,154,158,191*CdF RESISTOR 22 Kohm001-022351-0165R127RESISTOR 220 Kohm 001-022451-0161R121,122RESISTOR 270 ohm 001-027151-0162R148RESISTOR 27 Kohm001-027351-0161R125*CdF RESISTOR 3
21、.3 Kohm 001-033251-0161R118RESISTOR 39 Kohm001-039351-0161R130,141,142,144,145,152*CdF RESISTOR 47 Kohm 001-047351-0166C103*CdF RESISTOR 470 Kohm 001-047451-0161R162RESISTOR 5.6 Kohm001-056251-0161R112,113*CdF RESISTOR 6.8 Kohm 001-068251-0162R135,137,147RESISTOR 68K 001-068351-0163R149RESISTOR 91 o
22、hm 001-091051-0161CAPACITORSC101,105,107,117,134,138,159,199(F003-010380-025) CERAMIC CAP 0.01 uF/003-010380-050850V +80%-20%C121,122,125,142,145,146,147,148,CERAMIC CAP 0.1 uF/16V +80%-20%003-010480-01611149,152,153C111,114CERAMIC CAP 0.0022 uF/50V +80-20%003-022280-0502C156CERAMIC CAP 0.033 uF/50V
23、 +80-20%003-033380-0501C132CERAMIC CAP 0.0047 uF/50V +80%-20%003-047280-0501C127,128,129,164CERAMIC CAP 0.047 uF/50V +80%-20%003-047380-0504C102CERAMIC CAP 100 pF/50V +-10%003-210110-0501(UP050B101K-BB) (AXIAL TAPED 52mm)C135CERAMIC CAP 0.015 uF/50V +-10%003-215310-0501(UP050B153K-B-BZ) (AXIAL TAPED
24、 52mm)C133CERAMIC CAP 0.0027 uf/16V +-20%003-227220-0161(EP050X272M-BB) (AXIAL TAPED 52mm)C130,131CERAMIC CAP 470 pF/50V +-10%003-247110-0502(UP050B471K-BB) (AXIAL TAPED 52mm)C123,124CERAMIC CAP 15 pF/50V +-5% (NPO)003-415050-0502(CC45-CH1H150J/RBU04CH150J-L)C109,110CERAMIC CAP 33 pF/50V +-5% (NPO)0
25、03-433050-0502(CC45-CH1H330J/RBU04CH330J-L)C136CERAMIC CAP 47 pF/50V +-5% (NPO)003-447050-0501(CC45-CH1H470J/RBU04CH470J-L)ELECTRICAL PARTS LISTRadioFans.CN 收音机爱 好者资料库7Ref. No.DescriptionMfrs Part No.Qty.C162CERAMIC CAP 0.0068 uF/50V +80-20%003-068280-0501C154CERAMIC CAP 56pF/50V +-5% (NPO)003-45605
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