CDX-4270R SERVICE MANUAL

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CDX-270R SERVICE MANUAL AEP Model UK Model Model Name Using Similar Mechanism CD Drive Mechanism Type Optical Pick-up Name CDX-180R MG-6X-121 KSS-21A SPECIFICATIONS CD player section System

1 CDX-270R SERVICE MANUAL AEP Model UK Model Model Name Using Similar Mechanism CD Drive Mechanism Type Optical Pick-up Name CDX-180R MG-6X-121 KSS-21A SPECIFICATIONS CD player section System Signal-to-noise ratio Frequency response Wow and flutter Tuner section FM Tuning range Aerial terminal Intermediate frequency Usable sensitivity Selectivity Signal-to-noise ratio Compact disc digital audio system 90 db 10 20,000 Hz Below measurable limit MHz External aerial connector 10.7 MHz 12 dbf 7 db at 00 khz 6 db (stereo), 68 db (mono) Harmonic distortion at 1 khz 0.8% (stereo), 0.6% (mono) Separation db at 1 khz Frequency response 0 1,000 Hz MW/LW Tuning range MW: 1 1,602 khz LW: khz External aerial connector 10.7 MHz / 0 khz Aerial terminal Intermediate frequency Sensitivity MW: 0 µv LW: 0 µv Power amplifier section Outputs Speaker outputs (sure seal connectors) Speaker impedance 8 ohms Maximum power output 0 W (at ohms) General Outputs Line output (1) Power aerial relay control lead Power amplifier control lead Telephone ATT control lead Tone controls Bass ±8 db at 100 Hz Treble ±8 db at 10 khz Power requirements 12 V DC car battery (negative ground) Dimensions Approx mm (w/h/d) Mounting dimension Approx mm (w/h/d) Mass Approx. 1.2 kg Supplied accessories Parts for installation and connections (1 set) Front panel case (1) Design and specifications are subject to change without notice. FM/MW/LW COMPACT DISC PLAYER MICROFILM 1

2 -1. IC PIN DESCRIPTION IC801 MB907APMT-G-212-BND (SYSTEM ) Pin No. Pin Name I/O Pin Description 1 LD ON O Laser ON/OFF control output 2 FOK I Focus OK signal detection input XLAT2 O CD signal processing latch output DATA2 O CD signal serial data output XRST O Reset output to CD signal processor IC. 6 GFS I GFS signal detection input 7 NIL Not used. (Connect to ground in this set.) 8 VCC Power supply pin (+ V) 9 11 NIL Not used. (Open) 12 FLS SI/NOSE1 I Front panel attachment detection input 1 LCD SO/FLS SO O LCD serial data output 1 LCD CKO O LCD serial clock output 1 BEEP O BEEP output 16 NIL Not used. (Open) 17 SQ SI I Sub Q data input 18 NIL Not used. (Connect to ground in this set.) 19 SQ CKO O Sub Q read clock output 20 UNI SI I SONY BUS system serial interface input 21 UNI SO O SONY BUS system serial interface output 22 UNI CK I/O SONY BUS system serial clock input/output 2 C IN I Track jump No. count input 2 SIRCS I Remote commander input 2 TXT SI I CD-TEXT data input (Not used in this set.) 26 NIL Not used. (Connect to ground in this set.) 27 TXT CKO O CD-TEXT data read clock output (Not used in this set.) 28 CLOK2 O CD signal processing serial clock output 29 SYSRST O System reset output 0 DEEMPH O De-emphasis output 1 AMP ATT O Power amplifier attenuator control output 2 MD ON O CD mechanism power control output VSS Ground C Power stabilization capacitor pin CD ON O CD power control output 6 BUS ON O BUS ON control output (Not used in this set.) 7 NIL O Power control output of A/D conversion. 8 DVCC VREF input of D/A converter. 9 DVSS Ground of D/A converter. 0 NIL Not used. (Open) 1 ANGLE O LCD view angle alignment output (Not used in this set.) 2 AVCC Analog power supply pin (+ V) AVRH VREF + input of A/D converter. AVRL VREF input of A/D converter. AVSS Analog ground 6 8 KEY IN0 2 I Key input 0 2 SECTION DIAGRAMS 9 RC IN0 I Rotary commander input 0 0 QUALITY I Noise detection input 1 NIL Not used. (Connect to ground in this set.) 2 MPDH I Tuner multi path input S-METER I S-meter voltage detection input VCC Power supply pin (+ V) NS MASK O Noise detection output 20

3 Pin No. Pin Name I/O Pin Description 6 AMP ON O Power amplifier power control output 7 TXT ON O Reset output to CD-TEXT decoder IC. (Not used in this set.) 8 VOL ATT O Electric volume mute control output 9 NIL Not used. (Open) 60 ATT O System attenuate control output 61 RC IN1 I Rotary commander shift key input 1 62 TU ATT O Tuner attenuate output 6 VSS Ground 6 NIL Not used. (Open) 6 SSTOP I IF counter result signal detection input of PLL. 66 TEST I Test mode initial setting detection input 67 DAVN I RDS IC data acquisition detection input 68 FM ON/AM ON O FM ON output 69 TU ON O Tuner power control output 70 SDA I/O I 2 C BUS serial data input/output 71 SCL O I 2 C BUS serial clock output 72 NOSE2 I Front panel OPEN detection input 7 X1A O Sub ceramic oscillator output (2 khz) 7 X0A I Sub ceramic oscillator input (2 khz) 7 SCOR I SCOR signal detection input 76 BU IN I Backup power detection input 77 DQSY I CD-TEXT data setting completion signal detection input (Not used in this set.) 78 CD SENS I CD SENS signal detection input 79 NIL I Key input acknowledge 80 TEL ATT I Telephone attenuate detection input 81 ST/MONO I/O Tuner stereo signal detection input/forced monaural output 82 SEEKOUT O SEEK output 8 SD IN I Signal detector input 8 WIDE O WIDE select output (Not used in this set.) 8 NARROW O NARROW select output (Not used in this set.) 86 HSTX Hardware standby input (Connect to pin (º (RESET).) 87 MD2 Operation mode input (Connect to ground in this set.) 88, 89 MD1, 0 Operation mode input (Connect to VCC in this set.) 90 RESET I Reset input 91 VSS Ground 92 X0 I Main ceramic oscillator input (.68 MHz) 9 X1 O Main ceramic oscillator output (.68 MHz) 9 VCC Power supply pin (+ V) 9 COM8V ON O COM 8V control output 96 NIL Not used. (Open) 97 AREA1 I Destination select input 1 (Fixed at H in this set.) 98 AREA2 I Destination select input 2 (Fixed at L (AEP, UK model) or H (German model) in this set.) 99 LOUD I Fixed at H in this set. 100 BAND I Fixed at H in this set. 101 ACC IN I Accessory power detection input 102, 10 PH, 2 I Disc insertion detection photo sensor input (Fixed at H in this set.) 10 LCD CE O LCD chip enable output 10 FLS W I Flash write input (Fixed at H in this set.) 106, 107 RE IN0, 1 I Rotary encoder input 108 ILL ON O Illumination power control output 109 PW ON O System power control output 110 NIL Not used. (Open) Pin No. Pin Name I/O Pin Description 111 ANT REM O ANT REMOTE power control output 112 NIL Not used. (Open) 11 CTL2 Not used in this set. 11 CD LD O Loading motor control output (Loading direction) 11 CD EJ O Loading motor control output (Eject direction) 116 L SW I Sled limit switch detection input 117 IN SW/(PH1) I Disc insertion detection input 118 D SW I DOWN switch detection input 119 VSS Ground 120 SELF SW/(IN SW) I Disc self store detection input 21 21

4 CDX-270R -7. SCHEMATIC DIAGRAM CD MECHANISM SECTION Refer to page 2 for Waveforms. Refer to page for IC Block Diagrams. (Page 0) Note: Voltage and waveforms are dc with respect to ground under no-signal conditions. no mark : CD PLAY : Impossible to measure 27 27

5 CDX-270R -9. SCHEMATIC DIAGRAM MAIN SECTION (1/) Refer to page 7 for IC Block Diagrams. (Page 27) TDA78 (Page 1) (Page 2) 0 0 Note: Voltage is dc with respect to ground under no-signal (detuned) condition. no mark : FM ( ) : MW < > : CD PLAY

6 CDX-270R -10. SCHEMATIC DIAGRAM MAIN SECTION (2/) Refer to page 8 for IC Block Diagrams. (Page 0) 0.06 (Page 2) Note: Voltage is dc with respect to ground under no-signal (detuned) condition. no mark : FM ( ) : MW < > : CD PLAY 1 1

7 CDX-270R -11. SCHEMATIC DIAGRAM MAIN SECTION (/) Refer to page 8 for IC Block Diagrams. (Page 0) (Page 1) (Page ) Note: Voltage is dc with respect to ground under no-signal (detuned) condition. no mark : FM ( ) : MW < > : CD PLAY 2 2

8 CDX-270R -12. SCHEMATIC DIAGRAM DISPLAY SECTION (Page 2) Note: Voltage is dc with respect to ground under no-signal (detuned) condition. no mark : FM

9 XPCK VDD GFS RFCK IC Block Diagrams IC1 CXD207AQ OPOUT CH-IN CH CTL1 CTL2 FWD REV TRAY GND CH COM CH + CH + CH OP IN OP IN + VREF CH CH-IN CH2 CH2-IN VCC CH1 CH1-IN CH1 + CH1 CH2 + CH2 XLON SPOD SPOC SPOB SPOA CLKO VDD XLTO DATO CNIN SEIN CLOK XLAT FOK MON MDP MDS LOCK TEST FILO FILI PCO VSS AVSS CLTV AVDD DIGITAL PLL ASYMMETRY CORRECTOR SERVO AUTO SEQUENCER CPU INTERFACE SUB CODE PROCESSOR EFM DEMODULATOR DIGITAL CLV DATA XRST SENS MUTE SQCK SQSO EXCK SBSO SCOR VSS WFCK EMPH RF BIAS ASYI ASYO ASYE K RAM ERROR CORRECTOR D/A INTERFACE 6 DIGITAL OUT CLOCK GENERATOR DOUT CM FSTT XTSL XTAO XTAI WDCK 19 MNTO LRCK PCMD BCLK GTOP XUGF C2PO XROF MNT MNT1 IC BA6796FP-T LEVEL SHIFT LEVEL SHIFT VCC LEVEL SHIFT THERMAL SHUT DOWN LEVEL SHIFT LOGIC CTL1 CTL2 FWD REV V/I

10 IC2 CXA1782BQ PHD 2 PHD 1 PHD LD RF O RF I CP CB CC1 CC2 FOK APC LEVEL S 2 2 SENS C.OUT FE BIAS XRST DATA XLT CLK F 8 E 9 18 VCC EI 0 VEE TED ISET SL O 1 SL M LPFI TEI ATSC TZC TDFCT SL P TA O VC FEO FEI FDFCT FGD FLB FE O FE M SRCH TGU TG2 FSET TA M FOK RF M RF IV AMP1 MIRR DFCT IIL TTL RF IV AMP2 TTL IIL DATA REGISTER INPUT SHIFT REGISTER ADDRESS DECODER TTL FE AMP IIL OUTPUT DECODER IIL F IV AMP TOG1- BAL1- FS1- TG1-2 TM1-7 PS1- FZC COMP E IV AMP TE AMP BAL1 BAL2 BAL HPF COMP TG1 LPF COMP TRACKING PHASE COMPENSATION TM6 ISET TOG1 TOG2 TOG TM TM WINDOW COMP ATSC DFCT TZC COMP DFCT TM1 FCS PHASE COMPENSATION FS1 FS2 TG2 TM TM7 TM2 FS F SET 6

11 IC01 TDA762D01TR PAUSE DETECT SEL SER MUTE SDA SCL PAUSE SE1L SE1R MD+ MD CDL+ CDL CDR CDR+ PDR PDGND PDL SE2L SE2R INPUT MULTIPLEXER & MIXING STAGE FRONT SIDE SELECTOR REAR SIDE SELECTOR INPUT GAIN & AUTO ZERO INPUT GAIN LOUDNESS CIRCUIT LOUDNESS CIRCUIT VOLUME CIRCUIT COMPANDER SOFT MUTE TREBLE/ BASS CIRCUIT VOICE BANDPASS HP LP FRONT FADER FRONT FADER REAR FADER REAR FADER OUT FL OUT FR OUT RL OUT RR BEEP SUBWOOFER LP FADER SUBWOOFER OUT SUBOUT+ SUBOUT DIGITAL CIRCUIT IIC BUS SDA SCL CREF 1 POWER SUPPLY 16 1 VDD GND IC702 PCM1717E-ST2 XTI DGND VDD 1 CLK XTO CLKO LRCIN DIN BCKIN ZERO 6 7 INPUT INTERFACE DIGITAL FILTER MODE CONT ROL ML/MUTE MC/DM1 MD/DM0 RSTB NOISE SHAPER 1 MODE LEVE DAC LEVEL DAC LOWPASS FILTER LOWPASS FILTER D/C R 8 CMOS AMP CMOS AMP 1 D/C L VOUTR AGND VOUTL VCC 7

12 + IC601 TDA727AD1TR 28 LPOUT LP FM LP HC 1 2 SWITCH LP1/LP2 CHARGE PUMP PHASE COMP 11 BIT PROG COUNTER VDD1 27 VDD2 26 GND AM LP AM V REF LCL/DX INLOCK DETECTOR SWITCH SWM/DIR 6 BIT PROG COUNTER SWITCH SWM/DIR PRE COUNTER :2/ SWITCH AM/FM 2 AM IN 2 FM IN SEEK NIL 6 7 PORT EXTENSION TEST LOGIC MONO 8 2 NC OSCIN OSCOUT 9 10 REF OSCILLATOR 16 BIT PROG COUNTER SUPPLY & POWER ON RESET 22 GND D 21 VDD1 NC ADDR SCL SDA 12 1 I 2 C BUS INTERFACE 19 HFREF 18 AMOSC 1 BIT PROG COUNTER TIMER SWITCH OUT 17 DOUT/INLOCK IF AM 1 SWITCH AM/FM BIT PROG COUNTER 16 SSTOP 1 IF FM IC602 SAA688T-118 IC901 BA90ST-V PSWN 11 MAD 12 IIC-BUS SLAVE TRANSCEIVER 10 SCL 9 SDA.7V AFIN 1 PAUSE DETECTOR SIGNAL QUALITY DETECTOR INTERFACE REGISTER ON + ON VDDA 1 VSSA 1 MPX 16 VREF 17 SCOUT 18 CIN 19 LVIN 20 CLOCKED COMPARATOR POWER SUPPLY AND RESET 7kHz 8th ORDER BAND-PASS RDS/RDBS DEMODULATOR RDS/RDBS DECODER OSCILLATOR AND CLOCK TEST MULTI-PATH DETECTOR 8 DAVN 7 VDDD 6 VSSD OSCI OSC0 TCON 2 MPTH 1 MRO THERMAL SHUT DOWN CIRCUIT ON REGULATOR VREF OVER VOLTAGE PROTECT 1 2 AMP AMP GND VCC VDD ON OUT OUT 8

SERVICE MANUAL FM/AM COMPACT DISC PLAYER. US Model. Canadian Model CDX-C5750 SPECIFICATIONS CDX-C5750/C5850. Photo: CDX-C5750

SERVICE MANUAL FM/AM COMPACT DISC PLAYER. US Model. Canadian Model CDX-C5750 SPECIFICATIONS CDX-C5750/C5850. Photo: CDX-C5750 CDX-C70/C0 SERVICE MANUAL US Model CDX-C70/C0 Canadian Model CDX-C70 Photo: CDX-C70 SPECIFICATIONS AUDIO POWER SPECIFICATIONS (US Model) POWER OUTPUT AND TOTAL HARMONIC DISTORTION 7 watts per channel minimum