Akai-QXD3305-cs-sm维修电路原理图.pdf
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1、Page CD MICRO SYSTEM QX-D3305 PRODUCT SAFETY NOTICE Performance Specifications . 1 Electrical Parts List . 4 Printed Circuit Boards . 13 Wiring Diagram . 21 Schematic Diagrams . 23 Alignment Set-up Procedurecs . 29 Equipment Connection Diagrams . 30 Voltage Chart . 32 IC Lead Identification and Inte
2、rnal Diagrams . 35 Block Diagrams . 39 Exploded Drawing Parts List . 42 Exploded Drawings . 46 Many electrical and mechanical parts in this chassis have special safety characteristics. These safety characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtaine
3、d by using replacement components rated for higher voltage, wattage, etc. Replacement parts that have these special safety characteristics are identified in this manual and its supplements; electrical components having such features are identified by in the schematic diagram and the parts list. Befo
4、re 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 as specified in the parts list may create shock, fire or other hazards. CONTENTS RadioFans.CN 收音机爱 好者资料库 Power Supply: AC 230V
5、50Hz Output Load: 4 ohm non-reactive Reference Output: 500 mW, 4 ohm Input Signal Source: External AM Loop Antenna 75 ohm Dummy for FM Modulation: 30% 400Hz for AM 80% for Power 75kHz Deviation 1000Hz for FM 1kHz, 750mV Aux Input Remarks: 7.5kHz Pilot Tone 40kHz L+R 1000Hz GENERAL TEST CONDITION CD
6、SECTION UNIT NOMINALLIMIT 1. 10% Dis. Output Power (1kHz, 0dB)W54.5 2. Frequency Response (100Hz-20kHz/1kHz, 0dB)dB16 3. De-emphasis Response (1kHz, 0dB/5K, -5dB/16kHz, -9dB)dB24 4. Channel Balance (1kHz, 0dB)dB12 *5. Channel Separation (1kHz, 0dB)dB4540 *6. T.H.D. + Noise (1kHz, 0dB)%0.31.0 *7. S/N
7、 Ratio (1HF-A) (1kHz, 0dB)dB6055 8. CD Speed (1000Hz)Hz-1 *9. Dynamic RangedB8070 10. Wedge m-600 11. Black Dot m800600 12. Fringer PrintTrack-No. 18 13. Eccentricity TCD-712 ABEXm-150 14. Vertical Deviation TCD-731R ABEXmm-0.8 15. Seaching Time TN01-TN024Sec.58 TN024-TN01Sec.58 16. Minimum Operatio
8、n Voltage%8590 17. CD Max. Vol. HummV510 *with external A CURE L.P.F. ITEM 1 - 9 Test Disc CBD SONY YEDS7 ITEM 10 - 12 Test Disc PHILIPS 444A ITEM 15 Test Disc PHILIPS 444 Level Matching Aux 750 mV AM 55% 5mVdB3 FM 40kHz 1mVdB3 CD -10dBdB-63 MTT-112NdB3 TEST ITEMS AM SECTION, AMPLITUDE MODULATION UN
9、ITNOMINALLIMIT 1. Tuning RangekHz522-1620- 2. I. F.kHz4503 3. S/N 10mV/m0.999MHzdB3630 4. Sens. (at S/N 20dB)0.603MHzV/m9971995 0.999MHzV/m9971995 1.404MHzV/m9971995 5. I. F. Rejection 0.603MHzdB5046 6. Image Rejection 1.404MHzdB3024 7. Spurious RejectiondB3525 8. Bandwidth, -6 dB, at0.999MHzkHz64 -
10、 9 (Max. Sens. +6 dB) 9. ACA (9 kHz) Input 0.999MHzdB2015 10. AGC Figure Merit100mV/mdB4540 11. Distortion, 5mV/m, 30%13 80%36 12. 10% THD Power ACW54.5 13. a. Tweet (2nd 900kHz & 3rd 1350kHz)dB1510 at 75 dB I/P 14. Audio Fidelity, Centre (6) dBHz60/2200120/2000 15. Low Voltage AC%8085 16. a. Mod. H
11、um 10mV/mdB3630 b. Hum at Min. Vol.mV13 17. Auto Stop Sens.dB6470 18. Step FrequencykHz-9 TEST ITEMS CASSETTE SECTION UNITNOMINALLIMIT A(PLAYBACK) 1. Tape Speed (MTT-111N)%13 2. Wow & Flutter JIS WTD (MTT-111N)%0.250.38 3. Take Up Torque (PLAY)g-cm3060 4. F. F. / Rew. Torque g-cm60140 5. Output Powe
12、r (MTT-112BN) 10% THDW54.5 6. S/N Ratio (MTT-112BN)dB4540 7. T. H. Distortion (MTT-112BN)%23 8. Frequency Response (MTT-257H)125HzdB36 6.3kHzdB36 9. Separation (MTT-141N) w/BPFdB4030 10. Cross Talk (X- BASS OFF) w/BPF (MTT-121N)dB5545 11. Hum & Noise VR MAX (w/o Tape)mV3050 VR MIN(w/o Tape)mV13 B(RE
13、CORD) 1. T. H. / Distortion %48 2. Erase Ratio Effect (MTT-112BN) for LeveldB5548 3. Rec. / Playback Level Difference (Radio)dB24 4. Rec. / Play S/N Ratio (with A Filter)dB4035 5. Frequency Response (MTT-257)125HzdB47 (Ref: 1kHz 0dB)6.3kHzdB47 Remarks: All measurement should be done in Bypass mode w
14、ithout X-Bass/Toneeffect. TEST ITEMS 12 PERFORMANCE SPECIFICATIONSPERFORMANCE SPECIFICATIONS - CONTINUED RadioFans.CN 收音机爱 好者资料库 FM SECTION, FREQUENCY MODULATION UNITNOMINALLIMIT 1. Tuning RangeMHz87.5-108- 2. I. F.MHz10.70.3 3. 30dB S/N90MHzV2226 98MHzV2226 106MHzV2226 4. -3dB Limit Sens.dB1630 5.
15、I. F. Reection 98MHzdB6050 6. Image Rejection 106MHzdB3022 7. Spurious Rejection (F + 0.535 MHz)dB4035 (Max. Sens. +6dB) 8. AM Suppression(60dB I/P)dB4530 9. Mod. Hum(60dB I/P)dB4842 10. Distortion at 1mV/m (Mono)%12 100mV/m75kHz% 11. Audio Fidelity, (-3dB) (Pre-emphass) (75S)/(50S)Hz60/9000120/6000
16、 12. Power Out, Max. ACW6.55.5 10% THDW54.5 13. Low Voltage AC%8085 14. S/N Ratio at 1mV/m98MHzdB5546 15. Alternate Channel Selective 400kHzdB2518 16. Stereo SeparationdB2622 17. 19kHz Leak CarrierdB3227 18. Stereo IndicationdB2630 19. Step FrequencykHz-50 20. Auto Stop Sens.dB3035 Remarks: NOTE: Al
17、l measurement should be done in Bypass mode without X-Bass/Tone/effect. TEST ITEMS AMPLIFIER SECTION UNITNOMINALLIMIT 1.Output Power Per Channel (750mV IN)10%1kHzW54.5 2.Frequency Response: +/-6dB(L&R)Hz/kHz-100/20 3.THD (1kHz, Ref O/P)(L&R)%0.51.0 4.Channel UnbalanceL&R1kHzdB13 5.Minimum Vol. Hum (
18、Unwgtd/wgtd)mV13 6.Maximium Vol. Hum (Unwgtd/wgtd)mV510 7.X-Bass100HzdB83 8.S/N (Unwgtd/CCIR-ARM2k)L&R1kHzdB6050 9.Seperation1kHzdB4540 10. Cross Talk for Input (AUX/CD-Ref) w/BPF1kHzdB4540 TEST ITEMS 34 PERFORMANCE SPECIFICATIONS - CONTINUEDELECTRICAL PARTS LIST Ref. No.DescriptionMfrs Part No. Qty
19、. PCB TUNER PCBPCB CD6606-01-01 (94V0)033-006606-6001 CASSETTE & CD PCBPCB CD6606-01-02 (94V0)033-006606-6001 POWER PCBPCB CD6606-01-03 (94V0)033-006606-6001 DOOR SW. PCBPCB CD6606-01-04 (94V0)033-006606-6001 CONNECT PCBPCB CD6606-01-05 (94V0)033-006606-6001 MOTOR & LEAF SW. CONNECT PCB PCB CD6606-0
20、1-06 (94V0)033-006606-6001 RECTIFIER PCBPCB CD6606-01-09 150 x100 x1.6mm/2 (94V0)033-006606-1011 KEY & DISPLAY PCBPCB CD6606-01-08 224x124x1.6mm/2 (94HB)033-006606-1001 REMOTE CONTROL SECTION REMOTE CONTROL HANDSET, w/BATTERY,043-R11817-0101 L.GR COLOR (CD330 x/CD66xx/CD6821/RV2003) AUX SECTION RESI
21、STORS All are +-5% 1/16W (1/8W) tape & wheel resistors unless otherwise specified R501,502*CdF RESISTOR 47 Kohm001-047351-0162 R503,504RESISTOR 8.2 Kohm 001-082251-0162 CAPACITORS C501,502ELECT CAP 4.7 MFD/50V +-20% (5x11)006-004000-50D2 MISCELLANEOUS JK501PIN JACK #HSP-212V-06 WHITE/RED118-020212-0
22、011 CD SECTION RESISTORS All are +-5% 1/16W (1/8W) tape & wheel resistors unless otherwise specified R51,56*CdF RESISTOR 33 Kohm 001-033351-0162 R42,58RESISTOR 56 Kohm 001-056351-0162 R60*CdF RESISTOR 10 ohm001-010051-0161 R5,6,7,9,13,28,29,30,38,40,43,57,*CdF RESISTOR 1 Kohm 001-010251-01613 LM-CL1
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