Sony CDX-727 free download

File name CDX-727.pdf

CDX-727 SERVICE MANUAL US Model Canadian Model AEP Model UK Model E Model Model Name Using Similar Mechanism CD Drive Mechanism Type Optical Pick-up Name CDX-715 MG-250C-137 KSS-521A/J2N SPECIFICATIONS COMPACT DISC CHANGER MICROFILM CDX-727 7-6. SCHEMATIC DIAGRAM ­ RF/SW Boards ­ · See page 41 for Waveforms. · See page 43 for IC Block Diagrams. (Page 35) The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Les composants identifiйs par une marque ! sont critiques pour la sйcuritй. Ne les remplacer que par une piйce portant le numйro spйcifiй. ­ 29 ­ ­ 30 ­ CDX-727 7-9. SCHEMATIC DIAGRAM ­ MAIN Board (1/2) ­ · See page 41 for Waveforms. · See page 44 for IC Block Diagrams. (Page 30) ­ 35 ­ ­ 36 ­ CDX-727 7-10. SCHEMATIC DIAGRAM ­ MAIN Board (2/2) ­ · See page 42 for Waveforms. · See page 45 for IC Block Diagrams. (Page 40) ­ 37 ­ ­ 38 ­ 7-11. PRINTED WIRING BOARD ­ JACK Board ­ (Page 31) ­ 39 ­ 7-12. SCHEMATIC DIAGRAM ­ JACK Board ­ (Page 38) ­ 40 ­ · Waveforms ­ RF Board ­ 1 IC11 #Ј (RF O) 500 mV/DIV, 500 ns/DIV ­ MAIN Board (1/2) ­ 1 IC101 @¶ (MDP) 6 IC101 ^TM (RFCK) 2.5 Vp-p 6.4 Vp-p 1.4 Vp-p 7.6 µs 2 IC11 2 (FEI) 50 mV/DIV, 1 µs/DIV 2 IC101 #§ (V16M) 13.6 µs 7 IC101 &є (C4M) 6.5 Vp-p Approx. 110 mVp-p 6.3 Vp-p 119 ns 3 IC11 $¶ (TEI) 200 mV/DIV, 500 µs/DIV 3 IC101 $Є (WDCK) 119 ns 8 IC101 &ў (WFCK) 6.3 Vp-p 5.8 Vp-p Approx. 280 mVp-p 11.4 µs 4 IC101 %є (LRCK) 136 µs 9 IC101 *Є (XTAI) 6.2 Vp-p 6.2 Vp-p 22.7 µs 5 IC101 %ў (BCKO) 59.4 ns 0 IC201 #Ў (EXTAL) 6.5 Vp-p 4.9 Vp-p 474 ns 124 ns ­ 41 ­ ­ MAIN Board (2/2) ­ !Ў IC501 @Є (EXTAL) !§ IC401 9 (BCKI) @Ў IC401 !Є (LRCK) 3.1 Vp-p 6.5 Vp-p 5.6 Vp-p 100 ns !TM IC501 &¶ (WRCK) 474 ns !¶ IC401 !TM (LRCI) 22.7 µs @TM IC601 !Ј (MCK) 5.8 Vp-p 6.3 Vp-p 5.8 Vp-p 136 µs !Ј IC401 3 (WFCK) 22.7 µs !· IC401 !Ј (WDCI) 59.4 ns @Ј IC601 ! (XI) 5.8 Vp-p 6.9 Vp-p 2.5 Vp-p 136 µs !ў IC401 5 (C4M) 11.3 µs !Є IC401 !§ (XTAI) 59.4 ns @ў IC601 @Ј (BCK) 6.3 Vp-p 6.4 Vp-p 6.2 Vp-p 119 ns ! IC401 7 (RFCK) 59.4 ns @є IC401 !¶ (BCK) 474 ns @ IC601 @ў (LRCK) 6.4 Vp-p 6.2 Vp-p 5.6 Vp-p 136 µs 474 ns 22.7 µs ­ 42 ­ · IC Block Diagrams ­ RF Board ­ IC11 CXA1992BR RFTC RF M PD1 RF O CC1 PD2 PD CP CB CC2 28 MIRR LD FOK 27 IIL TTL DFCT1 CC1 RF I 39 38 37 36 35 34 33 32 31 30 29 PD 2 I-V AMP PD 1 I-V AMP PD AMP LD AMP RF SUMMING AMP FOCUS OK COMPARATOR VCC IFB1 ­ IFB6 LASER POWER CONTROL PEAK/BOTTOM HOLD MIRR COMPARATOR DEFECT AMP FE 40 BIAS FOCUS BIAS WINDOW COMPARATOR FOH FOL PEAK/BOTTOM HOLD LDON LPCL VEE F 41 F I-V AMP E I-V AMP TGFL FOCUS ERROR AMP TGFL LPC E 42 EI 43 VEE 44 TEO 45 TRACKING GAIN WINDOW COMPARATOR TGH TGL BALH BALL ATSC IIC DATA REGISTER, INPUT SHIFT REGISTER, ADDRESS DECODER, SENSE SELECTOR, OUTPUT DECODER IIL TTL 26 SENS2 25 SENS1 24 C. OUT VEE TOG1 ­ TOG4 BAL1 ­ BAL4 TTL IIL 23 22 21 20 19 XRST DATA XLT CLK LOCK TG1