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CDX-828 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-805 MG-250C-137 KSS-521A/J2N SPECIFICATIONS COMPACT DISC CHANGER MICROFILM CDX-828 7-6. SCHEMATIC DIAGRAM ­ RF/SW Boards ­ · See page 39 for Waveforms. · See page 45 for IC Block Diagrams. (Page 33) 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. ­ 27 ­ ­ 28 ­ CDX-828 7-9. SCHEMATIC DIAGRAM ­ MAIN Board (1/3) ­ · See page 39 for Waveforms. · See page 46 for IC Block Diagrams. (Page 28) (Page 37) ­ 33 ­ ­ 34 ­ CDX-828 7-10. SCHEMATIC DIAGRAM ­ MAIN Board (2/3) ­ · See page 40 for Waveforms. · See page 47 for IC Block Diagrams. (Page 43) (Page 38) ­ 35 ­ ­ 36 ­ CDX-828 7-11. SCHEMATIC DIAGRAM ­ MAIN Board (3/3) ­ · See page 40 for Waveforms. · See page 47 for IC Block Diagrams. (Page 34) (Page 35) ­ 37 ­ ­ 38 ­ · Waveforms ­ RF Board ­ ­ MAIN Board (1/3) ­ 1 IC11 #Ј (RF O) 500 mV/DIV, 500 ns/DIV 1 IC101 @¶ (MDP) 6 IC101 ^TM (RFCK) 2.5 Vp-p 1.4 Vp-p 5.7 Vp-p 7.6 µs 2 IC11 2 (FEI) 50 mV/DIV, 1 µs/DIV 2 IC101 #§ (V16M) 137 µs 7 IC101 &є (C4M) Approx. 110 mVp-p 6.8 Vp-p 6.6 Vp-p 3 IC11 $¶ (TEI) 200 mV/DIV, 500 µs/DIV 120 ns 3 IC101 $Є (WDCK) 236 ns 8 IC101 &ў (WFCK) Approx. 280 mVp-p 6.6 Vp-p 5.5 Vp-p 11.4 µs 4 IC101 %є (LRCK) 137 µs 9 IC101 *Є (XTAI) 6.6 Vp-p 3.3 Vp-p 22.7 µs 5 IC101 %ў (BCKO) 59.2 ns !є IC201 #Ў (EXTAL) 6.6 Vp-p 3.2 Vp-p 472 ns 125 ns ­ 39 ­ ­ MAIN Board (2/3) ­ !Ў IC603 4 ­ MAIN Board (3/3) ­ ! IC401 !Є (LRCK) @є IC401 7 (RFCK) 4.7 Vp-p 6.2 Vp-p 5.7 Vp-p 59.2 ns !TM IC601 4 (XTO) 22.7 µs !§ IC401 !¶ (BCK) 137 µs @Ў IC401 5 (C4M) 6.4 Vp-p 6.2 Vp-p 6.6 Vp-p 59.2 ns !Ј IC601 7 (BCK) 472 ns !¶ IC401 !Ј (WDCI) 236 ns @TM IC401 3, IC501&¶ (WFCK) 7.4 Vp-p 7.7 Vp-p 5.5 Vp-p 472 ns !ў IC601 9 (LRCK) 11.4 µs !· IC401 !TM (LRCI) @Ј IC403 1 137 µs 7.4 Vp-p 6.6 Vp-p 6.6 Vp-p 22.7 µs 22.7 µs !Є IC401 9 (BCKI) 11.4 µs @ў IC501 @Є (EXTAL) 6.6 Vp-p 3.2 Vp-p 472 ns 100 ns ­ 40 ­ CDX-828 7-13. SCHEMATIC DIAGRAM ­ DIGITAL OUT/JACK Boards ­ (Page 36) ­ 43 ­ ­ 44 ­ · IC Block Diagrams ­ RF Board ­ IC11 CXA1992BR RFTC RF M PD1 RF O CC1 PD2 CC2 28 PD LD CP 39 38 37 36 35 34 33 32 31 30 CB 29 27 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 IIL TTL FE 40 BIAS FOCUS BIAS WINDOW COMPARATOR PEAK/BOTTOM HOLD LDON LPCL TGFL MIRR DFCT1 VEE F 41 F I-V AMP E I-V AMP TGFL FOCUS ERROR AMP FOH LPC FOL FOK CC1 RF I 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,