CDX-424RF 7-3. schematic diagram C rf section C ? see page 31 for waveforms. ? see page 32 for ic block diagrams. the components identified by mark ! or dotted line with mark ! are critical for safety. replace only with part number specified. les composants identifis par une marque ! sont critiques pour la scurit. ne les remplacer que par une pice portant le numro spcifi. C 21 C C 22 C (page 27)
microfilm service manual compact disc changer system us model canadian model e model specifications CDX-424RF model name using similar mechanism cdx-505rf cd drive mechanism type mg-250c-137 optical pick-up name kss-521a/j2n
CDX-424RF C 27 C C 28 C 7-6. schematic diagram C main section (1/2) C ? see page 31 for waveforms. ? see page 33 for ic block diagrams. (page 22)
CDX-424RF C 29 C C 30 C 7-7. schematic diagram C main section (2/2) C ? see page 31 for waveforms. ? see page 33 for ic block diagrams.
C 31 C C 32 C ? ic block diagrams C rf board C ic11 cxa1992br fzc vc tdfct tzc atsc tei lpfi teo vee ei e f fe bias sl p sl m sl o iset vcc xrst data xlt clk lock sens2 sens1 c. out vcc dfcto ifb1 ?ifb6 bal1 ?bal4 tog1 ?tog4 fs1 ?fs4 tg1 ?tg2 tm1 ?tm7 ps1 ?ps4 tgh tgl balh ball atsc dfct tm1 tg1 fs2 ifb1 ?ifb6 vcc vee vcc vee vee pd 2 i-v amp fok cc2 cc1 cb cp rf o rf i rftc pd2 pd1 pd ld rf m ta o ta m fset tg2 tgu srch feo fei fdfct fgd flb fe o fe m tzc fzc fol foh mirr ldon lpcl lpc tgfl dfct1 cc1 1 2 3 4 5 6 7 8 9 10 26 25 24 23 22 21 20 19 18 17 16 15 14 40 41 42 43 44 45 46 47 48 49 50 51 52 39 pd 1 i-v amp 38 pd amp 37 ld amp laser power control focus bias window comparator focus error amp f i-v amp e i-v amp tgfl tracking gain window comparator e-f balance window comparator atsc window comparator tzc comparator tracking phase compensation center voltage generator fzc comparator focus phase compensation charge up fset iset iic data register, input shift register, address decoder, sense selector, output decoder ttl iil iil ttl iil ttl rf summing amp focus ok comparator peak/bottom hold peak/bottom hold defect amp mirr comparator 36 34 31 30 29 28 27 35 33 32 bal1 ?bal4 tm6 tm2 vcc vee tm5 11 12 13 tg2 tm4 vcc vee tm3 fs1 vcc vee tog1 ?tog4 tm7 fs4 dfct + + ? waveforms C rf board C 1 ic11 # (rf o) 500 mv/div, 500 ns/div 2 ic11 2 (fei) 50 mv/div, 1 m s/div 3 ic11 $| (tei) 200 mv/div, 500 m s/div 2 ic101 %? (lrck) 3 ic101 % (bck) 4 ic101 *? (xtai) 5 ic302 # (extal) 7 ic401 ! (xo) 8 ic401 @ (bck) 9 ic401 @ (lrck) 1.4 vp-p approx. 110 mvp-p approx. 280 mvp-p C main board (1/2) C 1 ic101 @| (mdp) 2.5 vp-p 7.6 s 6 vp-p 22.7 s 6.2 vp-p 472 ns 6 vp-p 59.2 ns 3.8 vp-p 124 ns 6 vp-p 59.5 ns 7.6 vp-p 472 ns 5.8 vp-p 58.6 s 7.3 vp-p 22.7 s C main board (2/2) C 6 ic401 ! (mck)
C 33 C ic52 ba6287f 1 2 3 4 out1 vm vcc fin 8 7 6 5 gnd out2 vref rin control logic tsd power save driver driver C main board C ic101 cxd2530q 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 43 42 41 40 39 38 37 36 35 34 33 32 31 50 49 48 47 46 45 44 88 89 90 91 92 93 94 95 96 97 98 99 100 81 82 83 84 85 86 87 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 80 79 78 77 76 75 74 73 72 asymmetry corrector digital pll clock generator d / a interface digital clv sub code processor timing logic cpu interface servo auto sequencer error corrector 16k ram digital out osc efm demodulator tes6 vdd vss exck sbso scor wfck tes5 emph dout c4m fstt xtsl mnt0 mnt1 mnt3 xrof c2po rfck gfs xpck xugf gtop vdd vss tes4 bck tes3 pcmd tes9 lrck wdck asye asyo asyi bias rf avdd cltv avss fili filo pco vctl v16m vcki vpco1 vpco2 tes1 tes0 lock pwmi mdp mds vss mon fok vdd spod xlon spob spoc clko spoa dato xlto sein cnin xlat clok sens data sqck sqso tes2 ckout lmut rmut vdd vss nc xrst vss nc nc vdd nc tes8 xvss vss xtai xtao vss xvdd tes7 nc vdd nc nc vss
C 34 C ic204 ba8272f-e2 ic401 tc9464fn-el ic301 ba6287f 1 2 3 4 5 6 7 8 9 10 14 13 12 11 vcc bus on link off clk out data out data in bus reset bus data vref bus clk gnd bus on in bus on out reset reset switch 1 2 3 4 out1 vm vcc fin 8 7 6 5 gnd out2 vref rin control logic tsd power save driver driver digital filter circuit attenuator operational circuit deemphasis filter circuit d- d modulation circuit interface circuit test circuit output circuit analog filter timing generator osc microcomputer interface circuit output circuit analog filter 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 21 22 23 24 lrck bck data hs (sm) att (emp) sh (bs) la vdx xo xi gndx mck vdd t1 p/s vda ro gnda vr gnda lo gndd zd vda
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