Kenwood-KDC-4590-R-Service-Manual电路原理图.pdf
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1、 2000-12 PRINTED IN JAPANB51-7705-00(S) 1995SERVICE MANUALCD RECEIVERKDC-4590R/V/Y/YVl KDC-4590RDC cord(E30-4790-05:4590R/Y)(E30-4791-05:4590RV/RYV)Mounting hardware assy(J21-9641-03)Plastic cabinet assy(A02-1486-13)Lever(D10-4589-04)Antenna adaptor(T90-0523-05)(T90-0534-05)PTYKDC-4590RAUDPWR OFFLOU
2、D SCANSCRL RDM REP VOL ADJT1MENUCOMPACTDIGITAL AUDIO45Wx4M. RDMKnob(EJ)(K24-3653-04)Front glass(B10-3299-01)Panel assy(A64-2211-02)Knob(Q)(K24-3652-04)Knob(VOL)(K25-1256-03)Knob(1-6)(K25-1253-03)Knob(CLK)(K25-1254-03)Knob(FM/AM)(K25-1255-03)KDC-4590R/V/Y/YV2BLOCK DIAGRAMKDC-4590R/V/Y/YV3COMPONENT DE
3、SCRIPTIONl SWITCH UNIT(X13-9872-XX)Ref.No. Component Name Application/Function Operation/Condition/CompatibilityIC1 LC75883E LCD driver Ready on key-matrixIC2 RS-171 Remote control light sensorQ1 key-matrix permission SW Ready on key-matrix, ON when the base goes “Lo“Q2,3 2SD2114K key illumination s
4、elector SW Key illumination is green when Q2 base goes “Hi“Key illumination is red when Q3 base goes “Hi“l ELECTRIC UNIT(X25-8712-XX)Ref.No. Component Name Application/Function Operation/Condition/CompatibilityIC1 UPD780058GC232 System m-COM.IC2 TDA7407D E-VOL. & N.C. MPXIC4 TDA7386 Power ICIC6 TDA7
5、479D RDS decoderIC7 BA4911-V4 Power supply ICIC8 HD74HC27FP Mute gate IC 3 input NOR gate x3IC11 S-80830ANNP RESET IC Detection voltage 3.0VIC12 BR24C01AForBR24C01AF-W E2PROMM24C01-WMN6TorS-24C01BQ10 2SC4081or2SD1819A B.U. detection Detect BU voltageQ20 2SC4081or2SD1819A ACC detection Detect ACC vol
6、tageQ40 DTA124EUAorUN5112 PREOUT mute driver Mutes when base is “Lo“ (controls Q221-224)Q50 2SA1036K SW 5V ON when the base is “Lo“.Q51 UMC2N SW 14V ON when the base is “Hi“ (controls Q55)Q53 UMC2N Switch for power supply IC ON when the base is “Hi“ (controls SW1 pin of powersupply IC)Q55 2SD2375or2
7、SD2396 AVR for SERBO +B Output issued when SW14V is on (base is “Hi“)Q70 2SC4081or2SD1819A SURGE detection Detect SURGE voltageQ101 2SC4081or2SD1819A DSI SW DSI LED turns ON when base is “Hi“Q102 DTA114YUAorUN5114 PANEL 5V SW ON when the base is “Lo“Q201 2SC4081or2SD1819A NOISE BuffQ221-224 DTC143TU
8、AorUN5216 PREOUT MUTE Mute applied to PREOUT (output) when base is “Lo“Q251 DTC114YUAorUN5214 Power IC SVR SW Turns ON when base is “Hi“ and capacitor on SVR pindischargesQ301 DTC124EUAorUN5212 FM Lo/DX SW Turns ON during Lo. SEEK when base goes “Hi“KDC-4590R/V/Y/YV4MICROCOMPUTERS TERMINAL DESCRIPTI
9、ONl Terminal DescriptionPin Function I/O Description Processing Operation1 AV CONT O A/D converter reference voltage control output ”Hi”: ON / ”Lo”: OFF2 IC2 TYPE0 I IC2 setting terminal ”Lo”: Initial value3 IC2 TYPE1 I IC2 setting terminal ”Lo”: Initial value4 AVSS - Ground connection terminal conn
10、ected to GND5 M MUTEL I Muting request from the MICOM. of CD mecha. ”Lo”: Mute request6 N.C O Not used7 AVREF1 I D/A converter reference voltage input8 ILLUMI O Illumination AVR ON/OFF control output ”Hi”: AVR ON9 L RES O Reset output to the LCD driver IC ”Lo”: Reset10 PANEL I Panel open/close detec
11、tion input ”Lo”: Panel closed11 L DATAL I Data input from the LCD driver IC12 L DATAS O Data output to the LCD driver IC13 L CLK O Clock output to the LCD driver IC14 N.C O Not used15 N.C O Not used16 CH-DATAC I Data input from changers17 CH-DATAH O Data output to changers18 CH-CLK I/O Clock input/o
12、utput with changers19 L CE O CE output to the LCD driver IC ”Hi”: Active20 N.C O Not used21 M RST O Reset output to the MICOM. of CD mecha. ”Lo”: Reset22 M STOP O Stop request to the MICOM. of CD mecha. ”Lo”: Stop23 MOSW O CD mechanism loading motor control output ”Hi”: Loading & Eject / ”Lo”: other
13、24 PLL SCL O Clock output to the tuner pack25 AM+B O AM+B control ”Hi”: during AM reception26 FM+B O FM+B control ”Hi”: during FM reception27 M-SCL I/O Clock input/output with the MICOM. of CD mecha.28 DSI O DSI output ”Hi”: LED ON29 LO/EJ I/O CD mecha.Loading/Eject switching output ”Lo”: Loading /
14、”Hi”: Eject30 SW3 I Down & limit switch detection input ”Hi”: Chucking / ”Lo”: Pickup most inner position31 R DATA I Data input from RDS decoder32 R QUAL I Quality input from RDS decoder33 VSS1 - Ground connection terminal connected to GND34 SD I SD input from the tuner pack ”Hi”: Station detected35
15、 IC2 SCL O Clock output to the E-VOL. IC36 M-SDA I/O Data input/output with the MICOM. of CD mecha.37 PLL SDA I/O Data input/output with the tuner pack38 IC2 SDA I/O Data input/output with the E-VOL. IC39 MUTE O Mute control output ”Hi”: Mute ON / ”Lo”: Mute OFF40 N.C O Not used41 AFC O AFC control
16、output ”Lo”: during FM seek42 CH-REQH O Request output to changers ”Lo”: Request43 CH-CON O Changer control ”Lo”: Standby / ”Hi”: ON44 N.C O Not used45 P MUTE O Power IC mute control ”Lo”: Mute46 SVR O Power lC reset terminal When the momentary power down, after ACCOFF/ON is detected and after POWER
17、 ON/OFF, the output goes ”Hi” temporarily.47 STBY O Power IC standby control output ”Hi”: POWER ON mode48 P CON O Power control ”Hi”: POWER ON mode except ALL OFF mode49 P ANT O Antenna control ”Hi”: during FM/AM reception50 BEEP O BEEP sound output51 ACC DET I ACC detection input ”Hi”: ACC OFF / ”L
18、o”: ACC ON52 BU DET I Momentary power down detection input ”Hi”: When momentary power down detectedor BU OFF / ”Lo”: BU ON53 N.C O Not used5 6KDC-4590R/V/Y/YVMICROCOMPUTERS TERMINAL DESCRIPTIONKDC-4590R/V/Y/YVADJUSTMENTPin Function I/O Description Processing Operation54 N.C O Not used55 N.C O Not us
19、ed56 SW5 O SW 5V control ”Lo”: POWER ON mode57 P ON O Microprocessor peripheral power supply control terminal ”Hi”: ACC ON or during CD Loading/Eject58 TYPE2 I Destination type input terminal 259 N.C O Not used60 RESET I Reset input terminal ”Lo”: System reset61 REMO I Data input from the remote con
20、trol light sensor62 R CLK I Clock input from RDS decoder63 CH-REQC I Request input from changers ”Hi”: Request64 SW1 I Loading detection ”Lo”: CD chucking65 KEY-REQ I Key request terminal ”Lo”: Request66 SW2 I 12cm disc detection terminal ”Lo”: 12cm disc67 VSS0 - Ground connection terminal connected
21、 to GND68 VDD1 - VDD connection terminal69 X2 - Main clock resonator connection terminal70 X1 I Main clock resonator connection terminal71 IC(TEST) - Not used connected to GND72 XT2 - Sub clock resonator connection terminal N.C.73 N.C I Sub clock resonator connection terminal connected to BU5V lines
22、74 VDD0 - VDD connection terminal75 AVREF0 I A/D converter reference voltage input76 SMETER I S-meter input from the tuner pack77 PHONE I PHONE detection input 1V or less: TEL MUTE,2.5V or greater: NAVI MUTE78 NOISE I Noise detection input79 TYPE0 I Destination type input terminal 080 TYPE1 I Destin
23、ation type input terminal 1Test Mode1. How to enter test modeWhile holding the FM key and preset 6 key, reset the unit.All display segments light up when the test mode is entered.2. How to exit from test modeReset the unit.The test mode is not terminated by turning ACC off, poweroff, momentary power
24、 down or panel detaching.3. Test mode specifications of CD receiver Pressing the Track Up key jumps to tracks in the followingsequence:No.9No.15No.10No.11No.12No.13No.14No.9(Repeats the cycle) Pressing the Track Down key jumps to the trackimmediately before the track being played. Pressing Preset 1
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- KenwoodKDC4590RServiceManual 电路 原理图