Kenwood-KDCX-959-Service-Manual电路原理图.pdf

© 2002-3 PRINTED IN JAPANB51-7931-00 (S) 3397CD RECEIVERlKDC-X959/Z939,Z738,Z838WSERVICE MANUALThis service manual does not include information on the CD mechanism assembly (exploded view, parts list,schematic diagram or mechanism operation description).For such information, please refer to the CD mechanism assembly service manual (X92-4450-0x: B51-7889-00)for Z738.For such information, please refer to the CD mechanism assembly service manual (X92-4590-0x: B51-7933-00)for KDC-X959/Z939, Z838W.Front glass(B10-4240-01)Panel assy(A64-2687-11)KDC-X959Front glass(B10-4252-01)Panel assy(A64-2723-11)Z738Front glass(B10-4242-01)Panel assy(A64-2689-11)Z838WFront glass(B10-4241-01)Panel assy(A64-2688-11)KDC-Z939Screw set(N99-1723-05): KDC-X959/Z939Screw set(N99-1656-05)Lever(D10-4674-04)x2Mountinghardware assy(J21-9823-03)Plasticcabinet assy(A02-2712-13)Remote controller assy(A70-2026-05): except KDC-X959Remote controller assy(A70-2025-05): KDC-X959Escutcheon(B07-3050-02): except KDC-X959(B07-3057-02): KDC-X959DC cord(E30-6062-05): KDC-X959DC cord(E30-6063-05): except KDC-X959Antenna adaptor(T90-0523/0534/0552-05): except KDC-X959KDC-X959/Z939,Z738,Z838W2BLOCK DIAGRAMCHF/EFM+BPLL+BAM+BBUFFE-VOLDECODERRDSISOAMPOEMEJECT LEDDSIDISP4.5V PREDC/DC2WAY MUTEACC DETDIMMERTEL-MUTEACCDIMMERPOWER ICPRE AMPPRE OUTSP OUTMUTEDRIVERNOISEBUFFERANT-CON ANT-CONP-CON P-CONIF+BCDMECHAAUXSWOP AMPE'SSPEANAAGC OP AMPMUTE4.5VBU DETBACK UPEX AMP CONTEX AMP CONTNAVI MUTERESETDETPANELSERVOAVRA8VSW14VDC/DCREGVOLTAGESW5VPANEL5VQ43,44Q45,46Q52IC14IC1IC2Q36 IC8,Q34IC5Q37-42IC10-12IC4Q32,IC7 33,35Q15Q31Q30Q14Q111,112Q26-29Q3Q9IC3,Q4-6IC6,Q16-23Q1Q10-13Q7,8Q201,473,474IC16305,306IC20IC21EEP ROMIC25Q101,P-CONANT-CONEXCEPT KDC-X959/Z939KDC-X959/Z939 ONLYZ838W/Z738 ONLYKDC-X959ONLYEXCEPT KDC-X959KDC-X959EXCEPTZ738 ONLYEXCEPT Z738MI-COMPANELMI-COMOELBUFFERKEY ILLKEYMATRIXSWREMOSPEANABPFBUFFERSRAMROM3.3V REGRESET SW+BOEL PAN 5VQ703,704Z738EXCEPTEXCEPT Z738IC4IC3IC9 IC2IC1IC6IC7Q4,5,9IC8Q6,8OEL 16V+BIC24BU5VQ475,476CONVERTERCD4.7VIC23,Q472EXCEPTZ738FLUSHROMIC5SDASCLS-METERSW5VRDCKFMAMSW5VAUDIO OUTBACK UPDATA HDATA CMUTECHSDARDDABU5VBU5VDSI EJECT G EJECT R/GCD/MDFMAM1512mV866mV3795mVBU5VPRE MUTEPMUTEPSTBYMUTEBEEPAUX SWCD-AUXE-VOL OUT LEVELA8VIFC OUTSW5VA8VSCLQUALAFSSERVOBU5VRchLchA8VA8VA8VREQ HRSTREQ CCH CONCLKA8V+B-BBACK UPBU5VBU5VA8V+B-BSERVOMI-COMSW5VMI-COMBU5VP5VMI-COMREMOO-DATAO-CEO-CLK1.8V PRE476mV274mV676mV1695mV4.5V PRE896mV1695mVZ838W (E)4.5V PREAUXCHANGER4.5V PRE 1.8V PRE3795mV1512mV866mV896mV274mV1695mVQUALE'S OUT LEVEL PRE OUT LEVELM RSTSW1SW2SW3LO/EJM STOPM SWMUTE RMUTE LKDC-X959 (K)CHANGERFMAMCD/MDAUXAMFMCHANGERAUXCD/MD2361mV722mV4.5V PRE4469mV848mV1.8V PRE1481mV3717mV1254mV1781mV4469mVGREENREDKS1-KS4KR1-KR5F01-F06WAVECESC REQSC DATAPANRSTREMOPANCONMC REQMC CLKMC DATARSTWED0-D15A0-A20OECERYWPD0-D15WRRDRSTBRDYCETESTRSWEA0-A20LBUBCEOED0-D15P5VOEL 16VP5VOEL PAN 5VZ738 (E)CD4.7VOEL PAN 5VOEL 16VCD4.7VMI-COMKDC-Z939 (M) KDC-Z939 (M)KDC-X959 (K)Z838W (E)4.5V PREZ738 (E)476mV676mV1695mVKDC-X959 (K)KDC-Z939 (M)Z838W (E) Z738 (E)4.5V PREFCSFDINFDOUTFCLK,251mV (E,M)TYPE470mV (K)TYPE215mV1200mV1200mVA8VKDC-X959/Z939,Z738,Z838W3l SWITCH UNIT (X16-169X-XX)Ref.No. Component Name Application/Function Operation/Condition/CompatibilityIC1 SI-3033LSA-TL 3.3V AVR +3.3V OutputIC2 TC74HC4050AFT Buffer 5V 3.3V logic level shiftingIC3 RS-171 Remote sensor ICIC4 BA3830F BPF IC BPF for the spectrum analyser indicatorIC5 M25P20 Flush ROM For custom display data of the indicatorIC6 MX23L3213TI109 ROM For display data of the indicatorIC7 IS61LV641615TI SRAM For display data of the indicatorIC8 703107AGJ121 Panel MI-COM.IC9 TC7WT126FU Buffer 3V 5V logic level shiftingIC10 TC7SH08FWE/WR control signalAND gategenerationQ4 DTC123JUA Key illumination Red SW When a base goes Lo, Q4 is turned on, and key illumination Red is lit.Q5 DTC123JUA Key illumination Green SW When a base goes Lo, Q5 is turned on, and key illumination Green is lit.Q6 CPH3105OEL+B SWWhen Q8's base goes Hi, Q6 is turned on, and OEL 16V power line isQ8 DTC114EUA or UN5111 supplied to OEL module.Q9 DTC123JUA Key illumination Blue SW When a base goes Lo, Q9 is turned on, and key illumination Blue is lit.COMPONENT DESCRIPTIONl ELECTRIC UNIT (X25-927X-XX)Ref.No. Component Name Application/Function Operation/Condition/CompatibilityIC1 UPD703033GFA14 System MI-COM. For KDC-X959/Z939, Z838WIC1 UPD703033GFA15 System MI-COM. For Z738IC2 TDA7407 E-VOL. & N.C. MPXIC3 M5237ML AVR IC IC is combined with Q4, and it works as the error detection, the Q4's driver.IC4 TDA7560 Power ICIC5 TDA7401High pass filter &HPF(Front/Rear output), LPF, Non-Fader switching and volume functionNon-Fader volumeIC6 ICL7660SIBA -9V AVR DC/DC converter, -9V output for pre-output amplifierIC7 TC74HC02AF Mute logic 2-input NOR x 4IC8 NJM4565M-TE2 Op. amp. Amplifier for the spectrum analyser and generation of Vref.(1/2Vcc) voltageIC10 NJM4565M-TE2 Op. amp. Amplifier for the front pre-outputsIC11 NJM4565M-TE2 Op. amp. Amplifier for the non-fader pre-outputsIC12 NJM4565M-TE2 Op. amp. Amplifier for the rear pre-outputsIC14 TDA7479D RDS decoderIC16 S-80837ANNP Reset IC When BU 5V voltage is less than 3.7V, IC outputs Lo.IC20 BA3121F Isolation amplifier AUX inputs isolation amplifierIC21 BA3129F Switched op.amp. Input switching with AUX inputs and CD inputsIC23 SI-8033JD MECHA. AVR DC/DC converter, +5V output for CD mechanism adapted for MP3/WMAIC24 LT1930A OEL AVR DC/DC converter, +16V output for OEL moduleIC25 BR24C02F-W EEPROMQ1 2SD2375 CD servo AVR AVR for CD mechanism servo operation, +7.5V output.Q3 2SA1037K SW 5VWhile a base goes Lo, SW 5V is supplied to the microprocessorperipheral circuits.Q4 2SA2057 A.+8V AVR Q4 is combined with IC3, and it works as the power supply of +8.0V output.Q5 DTC144EUA or UN5213A.+8V AVR SW When Q5's base goes Hi, Q6 is turned on, and A.+8V AVR is working.Q6 DTA124EUA or UN5112Q7 DTA124EUA or UN5112SW14VWhen Q8's base goes Hi, Q7 is turned on, and A.+8V AVR, CD servoQ8 DTC124EUA or UN5212 AVR and A.+10V AVR are working.Q9 2SB1427 PAN5V SWFor PAN5V on/off switching. When a base goes Lo with panel attachedto the set, Q9 is turned on, and PAN5V is supplied to the panel.Q10 2SA2057OEL/Illumination AVR When Q11's base goes Hi, AVR outputs +9V.Q11 2SC4081Q12 DTC124EUA or UN5212OEL/Illumination AVR SWWhen Q12's base goes Hi, Q13 is turned on, and OEL/Illumination AVRQ13 DTA124EUA or UN5112 is working.Q14 DTA123JK or KRA105S EXT. AMP CON. SW When a base goes Lo, Q14 is turned on, and control pulse signal is outputted.Q15 DTC144EUA or UN5213 Dimmer detection SW When vehicle small lamps turn on, Q15's base goes Hi, and it is turned on.KDC-X959/Z939,Z738,Z838W4Q16 2SB1443A.+10V AVR When Q17's base goes Hi, AVR outputs +10V.Q17 2SC4081Q18 2SA1576AQ18 and Q20 work as a differential amplifier, Q19 works as a driver,Q19 2SC4081 PRE-AMP -9V AVRand -9.3V is supplied to OP AMP.Q20 2SA1576AQ21 2SC4081Q21and Q22 work as a differential amplifier, Q23 works as a driver,Q22 2SC4081 PRE-AMP +9V AVRand +9.7V is supplied to OP AMP.Q23 2SA1576AQ26 2SB1277(Q,R)P-CON SWWhen Q29's base goes Hi, Q26 is turned on, and P-CON signal is outputted.Q29 DTC114YUA or UN5214 Works during POWER ON mode.Q27 2SA1576A P-CON. protection SW Protect Q26 by turning ON when P-CON output is grounded.Q28 DTA124EUA or UN5112 P-CON. protection inhibit SW Prevents Q27 tuning ON during start-up after power ON.While BACKUP is applied, a base goes Hi, and Q30 is turned on.Q30 2SC4081 BU detection SW When momentary power down has detected, a base goes Lo, andQ30 is turned off.Q31 2SC4081 ACC detection SW While ACC is applied, a base goes Hi, and Q31 is turned on.Q32 DTA124EUA or UN5112 Mute driver for R Ch. When BU detection SW or System RESET or MI-COM.'s MUTE isQ33 DTA124EUA or UN5112 Mute driver for L Ch. working, a base goes Lo, and Q32 and Q33 are turned on.Q34 2SC4081 AGC for spectrum analyserQ35 DTC124EUA or UN5212 E. VOL. mute SWWhen BU detection SW or MI-COM.'s mute is working, a base goesHi, and Q35 is turned on.Q36 DTC143TUA or UN5216 Noise bufferQ37 DTC143TUA or UN5216 Audio mute SW (Front L) When Q37's base goes Hi, Pre-output is muting.Q38 DTC143TUA or UN5216 Audio mute SW (Front R) When Q38's base goes Hi, Pre-output is muting.Q39 DTC143TUA or UN5216 Audio mute SW (Non Fader R) When Q39's base goes Hi, Pre-output is muting.Q40 DTC143TUA or UN5216 Audio mute SW (Non Fader L) When Q40's base goes Hi, Pre-output is muting.Q41 DTC143TUA or UN5216 Audio mute SW (Rear L) When Q41's base goes Hi, Pre-output is muting.Q42 DTC143TUA or UN5216 Audio mute SW (Rear R) When Q42's base goes Hi, Pre-output is muting.Q43 DTC124EUA or UN5212FM+B SWWhen Q43's base goes Hi, Q44 is turned on, and A.+8V is supplied toQ44 CPH3105 the F/E. Works during FM reception mode or RDS reception mode.Q45 DTC124EUA or UN5212AM+B SWWhen Q45's base goes Hi, Q46 is turned on, and A.+8V is supplied toQ46 CPH3105 the F/E. Works during AM reception mode.Q52 DTC143TUA or UN5216 Composite signai bufferQ101 DTA114YUA or UN5114 DSI LED SW When a base goes Lo, Q101 is turned on, and DSI illumination LED is lit.Q103 DTC124EUA or UN5212 AUX/CD selector SWWhen a base goes Hi, AUX inputs are selected.When a base goes Lo, CD inputs are selected.Q111 2SB1277(Q,R)P-ANT SWWhen Q112's base goes Hi, Q111 is turned on, and P-ANT signal is outputted.Q112 DTC114YUA or UN5214 Works during FM/AM reception mode or RDS reception mode.Q201 2SC4081 BU5V discharge SW When BU OFF is detected, Q201 is turned on during the base Hi condition.Q305 DTA114YUA or UN5114 EJECT LED SWWhen a base goes Lo, Q305 is turned on, and EJECT illuminationLED is lit.Q306 DTA114YUA or UN5114 EJECT LED SWWhen a base goes Lo, Q306 is turned on, and EJECT illuminationLED is lit.Q472 DTC144EUA or UN5213 MECHA. AVR SW When a base goes Hi, Q472 is turned on, and MECHA. AVR operation stops.Q473 2SC4081BU 5V AVRWhile BACKUP is applied, AVR outputs +5V.Q474 2SA2057 Q473 and Q474 are inverted Darlington connection.Q475 2SC4081Voltage converter Q475 and Q476 work as voltage coverter for BU 5V AVR, and it output +9V.Q476 2SA2057Q703 2SA2057OEL PAN5V AVRWhile BACKUP is applied, AVR outputs +5V.Q704 2SC4081 Q703 and Q704 are inverted Darlington connection.Ref.No. Component Name Application/Function Operation/Condition/CompatibilityCOMPONENT DESCRIPTIONKDC-X959/Z939,Z738,Z838W5l IC8 (SWITCH UNIT: X16-169X-XX)Pin No. Pin Name I/O Description Processing Operation1-7 D14-D8 I/O Data input/output with OEL, SRAM IC and ROM IC8 PAN3.3VDD - Positive power supply connection terminal Connected to 3.3V lines.9 VSS - Ground connection terminal Connected to GND lines.10-17 D7-D0 I/O Data input/output with OEL, SRAM IC and ROM IC18 MODE2 I Not used(Pull down to GND lines)19-21 NC O Not used(N.C.)22 RSTB_OEL I/O Reset output to OEL Lo: Reset, Hi-Z: Normal operation23,24 NC I/O Not used(N.C.)25 SRAM_TESTI I SRAM test terminal Not used(Pull down to GND lines)26 SRAM_TESTO O SRAM test terminal Not used(N.C.)27 PAN3.3VDD - Positive power supply connection terminal Connected to 3.3V lines.28 VSS - Ground connection terminal Connected to GND lines.29-33 KR1-5 I Key return input 1-534 NC O Not used(N.C.)35 SRAM_CH O Not used(N.C.)3616V OEL,I/O LED, OEL AVR ON/OFF control output Hi-Z: AVR OFF, Hi: AVR ONILL BLUE37 PAN3.3VDD - Positive power supply connection terminal Connected to 3.3V lines.38 VSS - Ground connection terminal Connected to GND lines.39 NC O Not used(N.C.)40-43 KS4-1 I/O Key scan output 4-1 Lo: Scan ON, Hi-Z: Scan OFF44,45 NC O Not used(N.C.)46 NMI I Not used(Connected to GND lines)47 PAN3.3VDD - Positive power supply connection terminal Connected to 3.3V lines.48 VSS - Ground connection terminal Connected to GND lines.49 CE_SD O Data line chip select output to IC9 Hi: SCDATA output enable50 NC O Not used(N.C.)51 SCREQ O Communication request output to the system MI-COM. Lo: Standby, Hi: Request52 NC O Not used(N.C.)53 MCREQ I Communication request input from the system MI-COM. Hi: Request54,55 NC O Not used(N.C.)56 FCS I/O CS output to the flush ROM IC Lo: Chip select57 MODE1 I Not used(Pull down to GND lines)58 MODE0 I Not used(Pull down to GND lines)59 PARST I Reset input Lo: Reset60 CKSEL I Clock generator operation mode setting terminal Connected to GND lines.61 CVDD - Positive power supply connection terminal Connected to 3.3V lines.62 X2 - Main clock resonator connection terminal63 X1 I Main clock resonator connection terminal64 CVSS - Ground connection terminal Connected to GND lines.65 MCCLK I Clock input from the system MI-COM.66 MCDATA I Data input from the system MI-COM.67 SCDATA O Data output to the system MI-COM.68 FCLK O Write clock output to the flush ROM IC69 FDATAIN I/O Data input from the flush ROM IC70 FDATAOUT O Data output to the flush ROM IC71 AVDD - A/D converter positive power supply connection terminal Connected to 3.3V lines.72 AVSS - A/D converter ground connection terminal Connected to GND lines.73 ANI7 I A/D converter analogue input terminal Not used(Connected to GND lines)74 WAVE IN I Audio input75 F06 I BPF(10kHz) input76 F05 I BPF(3.3kHz) input77 F04 I BPF(1kHz) input78 F03 I BPF(330Hz) input79 F02 I BPF(150Hz) input80 F01 I BPF(63Hz) input81 PAN3.3VDD - Positive power supply connection terminal Connected to 3.3V lines.MICROCOMPUTER'S TERMINAL DESCRIPTIONKDC-X959/Z939,Z738,Z838W682 VSS - Ground connection terminal Connected to GND lines.83 NC O Not used(N.C.)84 SARST O Reset output to the BPF IC Hi: Reset85 REMO I Data input from the remote control light sensor86 NC I Not used(N.C.)87 FROM_CH O Not used(N.C.)88 NC I Not used(N.C.)89,90 NC O Not used(N.C.)91 RDY/RY I RDY signal input92-94 NC O Not used(N.C.)95 OE/RD I/O Read control output to OEL, SRAM IC and ROM IC Lo: Read, Hi-Z: Other96 WE/WR I/O Write control output to OEL and SRAM IC Lo: Write, Hi-Z: Other97 UWE/LWR I/O Write control output to OEL and SRAM IC Lo: Write, Hi-Z: Other98 PAN3.3VDD - Positive power supply connection terminal Connected to 3.3V lines.99 VSS - Ground connection terminal Connected to GND lines.100 RESET ROM I/O Reset output to the ROM IC Lo: Reset, Hi-Z: Normal operation101 WP ROM I/O Boot block, Write protect Lo: Write, Hi-Z: Other102,103 NC O Not used(N.C.)104 CS ROM O CS output to the ROM IC Lo: Chip enable105 NC O Not used(N.C.)106 CS RAM O CS output to the SRAM IC Lo: Chip select107 CS OEL O CS output to OEL Lo: Chip select108 UBE I/O Bus enable output of D8-D15 Lo: Permission, Hi-Z: Inhibit109 LBE I/O Bus enable output of D0-D7 Lo: Permission, Hi-Z: Inhibit110 RED OIllumination red ON/OFF output in case of two coloursLo: ON, Hi: OFF/Illumination ON/OFF output in case of one colour111 GREEN OIllumination green ON/OFF output in case of two colours Lo: ON, Hi: OFF in case of two colours/Not used in case of one colour /Not used(N.C.) in case of one colour112 PAN3.3VDD - Positive power supply connection terminal Connected to 3.3V lines.113 VSS - Ground connection terminal Connected to GND lines.114-117 NC O Not used(N.C.)118-123 A20-A15 I/O