Kenwood-KDC-248-U-Service-Manual电路原理图.pdf

This product uses Lead Free solder.This product complies with the RoHS directive for the European market.SERVICE MANUALKDC-208U/248U/4051UGM/4051URMKDC-MP148U/MP248U/U3049KDC-U349A/U349G/U349R/U349SKDC-U4049CD RECEIVER© 2010-12 PRINTED IN JA PANB53-0833-00 (N) 217TDF SPARE-PANELMAIN UNIT NAME TDF PARTS No. TDF NAMEKDC-208U Y33-3390-11 TDF-120DKDC-248U Y33-3380-10 TDF-128DKDC-4051UGM Y33-3400-26 TDF-4051UGMKDC-4051URMKDC-MP148U Y33-3390-10 TDF-MP11DUKDC-MP248U Y33-3380-11 TDF-MP12DUKDC-U3049 Y33-3400-20 TDF-U3049KDC-U349A Y33-3400-24 TDF-U349AKDC-U349G Y33-3400-23 TDF-U349GKDC-U349R Y33-3400-21 TDF-U349RKDC-U349S Y33-3400-22 TDF-U349SKDC-MP248U : Panel assy (GE20277-017A)KDC-248U : Panel assy (GE20280-020A)KDC-U349A/G/R : Panel assy (GE20277-019A)KDC-U349S : Panel assy (GE20277-006A)Y33-3400-25 TDF-4051URMKDC-U4049 Y33-3403-01 TDF-U4049KDC-U4049 : Panel assy (GE20280-019A)After replacing E2PROM (IC771 on X34), tuner setting adjustment is needed.The adjustment is that to perform the “TUNER Setting Adjustment Mode” (Page 5) in the “Tuner Test Mode Specification” of “Production Test Mode”.Tuner setting adjustment after replacing E2PROMMounting sleeve assy(GE34134-001A)Hook(GE40510-001A) x2* Car cable(E30-xxxx-xx)* Screw set(N99-1757-15)* Carrying case(W01-1710-05)* Car cable(E30-6937-05)* Tap screw (2x8)(N80-2008-43)* Hard case assy(A02-2757-13)* Remote control unit (RC-405)(A70-2104-05)Trim plate(GE20274-001A)KDC-4051UxM : Panel assy (GE20280-012A)KDC-MP148U : Panel assy (GE20280-002A)KDC-U349KDC-MP248UKDC-MP148UKDC-248UKDC-U4049* Depends on the model. Refer to the parts list.KDC-4051UM2KDC-208U/248U/4051UGM/4051URM/MP148U/MP248UKDC-U3049/U349A/U349G/U349R/U349S/U4049BLOCK DIAGRAM1BU DETPHONERESET959BU DET12MUTER902,90312211111R631,632D8912FL+BPS1-1 / PS1-2 / PS1-3ACC5V / BU-DETPS2-1 / PS2-2PHONEPS1-1 / PS1-2 / PS1-3PS2-1 / PS2-2 P-ANTP-CONSP-OUTPHONEACCBU5SW3.3VSW3.3VPON-FL18ACC5VPANEL3.3VCD1.5V CD3.3V22FL+B322FL+BE-VOLIC161A9VSYSTEM u-COM & USB HOSTQ321,341PHONEQ970BU DETQ971SW 3.3VQ951,952IC501AUDIOCDBU5VSW5(REMO DRV)RESET ICIC702ILLUMI+BCONNECTORRESET SWREMOFLIC701IC301IC602CN901ILLUMI+BEN601 FL601J321MUTEQ780IC1Q701VDD3.3Vto GNDS701CN601A9VANTE2PROMBU3.3VF-AUXJ602PANEL DETIC901CN701SW3.3VIC771TUNERROTARYENCODERKEYILLUMI(FL FILAMENT)RESISTORKEYMATRIXLOADRESISTORMOTORDRIVERICSUPPLYPOWERDC-CN etcMUTERCAAMPPOWERRCA-OUTDETSURGE-DC-CNBU5VSERVO IC(OASIS)IC540CD 3.3VCD 1.5VIC530-532BUBU3.3VATOMIC(OE REMOTE)EXT REMOMECHACDCD3.3Vto MECHAJ1BU3.3Vto DCCONNECTORPANEL3.3VCDBU3.3VBU5VLOADSW3.3VIC931BU3.3VSW 3.3V BU5VPANEL SW3.3Q602BU3.3VBU5VUSB5VCPi-PodIC80SW3.3VSWHI-SIDEUSB5V(DC/DC)IC981IC961USB5VUSB CNCN603ELECTRIC UNIT (X34- )SWITCH UNIT (X16- )3KDC-208U/248U/4051UGM/4051URM/MP148U/MP248UKDC-U3049/U349A/U349G/U349R/U349S/U40491. PanelACCENTSEARCHRETURN VOL2. How to enter each Test ModeTest Mode name OperationProduction Test Mode Press and hold 1 key and 3 key and reset.Service Test ModeIn the STANDBY source, while pressing and holding 2 key, press 6 key for 7 seconds.(Starting to press 2 key and 6 key at the same time can not be entered into the mode)DC Error Information Mode Press and hold 3 key and 6 key and reset. Transition to Test Mode shall be available during DC Error detection.3. How to release each Test Mode Reset Momentary voltage drop ACC OFF POWER OFF Panel Detach4. Production Test Mode Default status immediately after the mode activationIt shall be same as normal RST start in other settings than the following.DetailsDifference in actionPeriod to prohibit TEL/LINE MUTE immediately after activation (normally 10 seconds)1 secondMecha Initialize Action ProhibitedWrite-in to E2PROM when detecting a DC error ProhibitedDemo Mode ON/OFF Setting Menu ProhibitedPower supply during ACC OFF (Back Up On) MUTE terminal turns OFF after 2 secondsBEEP sound Beep with short-pressing in any functionsVarious setting value Volume 30 (-10dB)BASS BOOST/LOUD OFFEQ NATURALFader/Balance CenterDEMO Mode Setting OFFAUX Setting ON1NAVI MUTE Setting for Japan Detecting function valid (ATT)TEST MODE4KDC-208U/248U/4051UGM/4051URM/MP148U/MP248UKDC-U3049/U349A/U349G/U349R/U349S/U4049 Mode structureSome Test Modes change according to the current source.The following table shows the current source in Set and the related test mode status.Model source Test modePOWER OFF -Standby STANDBY Test ModeTUNER TUNER Test ModeCD CD Test ModeUSB -AUX - Mode contentSyscon shall display the following information after entering this mode. The operation shown below shall be workable.Display content DetailsPRO TESTThe display is released when another operation is executed.The display will blink if sub clock is not functioning. STANDBY Test Mode Specifi cationOperation Display content Details1 (Toggle)Syscom version display SYS0 Syscom version (Refer to Syscom Version Table)All lights ON All lights ON (Switch with other display)2 (Toggle)Serial No. display SN 00000000Serial No. display (8-digit) Display as it is in hexAll lights ON All lights ON (Switch with other display)3 (Toggle) All lights ON/OFF All lights ON/OFF with toggle4 (Toggle)Information display iPod verifi cation IC mount sta-tus displayiPod :iPod :OKiPod :NGiPod :iPod verifi cation IC mount status displayBlank: VerifyingOK: Verifi cation IC mountedNG: Verifi cation IC not mounted: Non-iPod support modelAll lights ON All lights ON (Switch to other display)5 (Toggle) Preout switchSWPR E RE ARSWPRE SUB WSwitch Preout with toggle6 FL display short checkAll lights ON All lights OFF odd terminal and even terminal of the largest grid ON alternatively every 125ms odd terminal ON even terminal ON (repeat continuously)SOURCE transitionMode release Return to Normal modeRETURN Mode release Return to Normal mode Tuner Test Mode Specifi cationThe following display shall be indicated according to the TUNER status.Status Display content DetailsTUNER IC Normal Error TUN CON NGCommunication to TUNER IC not available (indicated unless the mode is in Clock Display Mode).TEST MODE5KDC-208U/248U/4051UGM/4051URM/MP148U/MP248UKDC-U3049/U349A/U349G/U349R/U349S/U4049Status Display content DetailsAdjustment not imple-mented ERR A97.9AFor models that TUNER adjustment is necessary but not done (adjustment value: 0x00 or 0xFF), the following TUNER Test Mode functions are valid (“ERR” display is continuing).Display “ERR” blinks with 250ms interval.RDS Specifi ed data re-ception RDS TESTTurn OFF P-CON forcibly if PS=RDS TEST is received.P-CON recovers with Power OFF/ON.OperationsOperation Display content DetailsACCENT TUNER IC display ATOM RDS Display TUNER IC versionBANDBAND switch operationFM1 3A 9 7.9AExecute Band Switch as shown in the following table every time Band key is pressed in each type.SEARCHS meter voltage judgment displaySMTR xx:OKSMTR xx:NGSMTR xx:S meter value xx: Current S meter valueDetermination result OK: Within S meter voltage specNG: Out of S meter voltage spec : No LEVEL OFFSET adjustmentDISPShift to TUNER setting modeShift to TUNER setting mode after switching to 98.3MHzSG setting valuesFrequency: 98.3MHz, Modulation frequency: 1kHz, Modulation mode: MONO, Modulation: OFF, Deviation: 40kHz, ANT input level: 34dBVTUNER Setting Adjustment Mode1. Operation (Operation after performance of above-mentioned “Shift to TUNER setting mode” item)Operation Display content DetailsBAND (Toggle)AUTO Adjustment ModeA Sxx LxxSelect TUNER adjustment method (AUTO) using BAND key.S-xx: Current S meter value (Hex)L-xx: Level offset value (Hex) In case that the level offset value is not adjusted (0xFF or 0x00), display “ ”.2. Operation in AUTO Adjustment ModeOperation Display content DetailsVOL PUSH Adjustment start A Sxx LxxStart adjustment (Start Auto adjustment, and transit to Suc-cess/Failure display depending on the adjustment result)3. Status display during adjustmentStatus Display content DetailsAdjustment success ADJ OK :x xWhen the adjustment value write-in to E2PROM (IC771 on X34) has been completed.xx: Level offset value (HEX)Adjustment failure ADJ NGWhen the adjustment value write-in to E2PROM (IC771 on X34) has failed 4. Operation of return to TUNER Test ModeOperation Display content DetailsRETURN Mode release Return to TUNER Test Mode.TEST MODE6KDC-208U/248U/4051UGM/4051URM/MP148U/MP248UKDC-U3049/U349A/U349G/U349R/U349S/U4049 BAND switch listType BAND1 BAND2 BAND3 BAND4 BAND5 BAND6 DetailsK qFM1 FM2 FM3 wAM - - qwqM (LW) qFM1 FM2 FM3 wMW/LW - - qwqM/C qFM1 FM2 FM3 wMW eSW1 rSW2 qwerq CD Test Mode Specifi cationIt shall be the same as normal RST start in other than the below setting.Content DetailsPlayback track from top No.9Default for Display mode Play timeOperations in CDDA playbackOperation Display content DetailsSpecial track upPressed Track up depend on different cases.Case 1: Track>23 No.9No.15No.10No.22No.12No.13No.14No.9Case 2: Track<8 No.1No.2No.3Until Last TrackCase 3: 8<Track<22 No.9No.15No.10Until Last TrackSpecial track downOne-by-one Track down by sequence follow Track No. 1(Toggle)HC1/2 Judge-ment Information DisplayCD HC1CD HC2CD HC1/2 Judgement Infomation.HC1: HC1 mecha (for this model)HC2: HC2 mecha : Impossible of JudgementNormal Display T01 1:23 Normal Display3Special jump operationJump to No.28(Scratch 0.7mm for MUSIC line vibration test)4Special jumpoperationJump to No.14 (Damaged disc TCD-731RA Tr14)5Special jumpoperationJump to No.15Set Volume value at 26 (for error operation FCT check of 20Hz 0dB DC protection)6Special jumpoperationJump to No.9 if the other than track No.9 is playing.Jump to No.22 if the track No.9 is playing.5. Service Test Mode Default status immediately after the mode activationIt shall be same as the normal activation. Mode structureService Test Mode is enabled only STANDBY source. Mode contentSyscon shall display the following information after entering this mode. The operation shown below shall be workable. Display content DetailsSRV TEST The display is released when another operation is executed.TEST MODE7KDC-208U/248U/4051UGM/4051URM/MP148U/MP248UKDC-U3049/U349A/U349G/U349R/U349S/U4049 Common operation mode for only STANDBY sourcesOperation Display content Details1Development name status display1003WE2200 Development name Version (Micom)3Power ON duration displayPONTM 0Hx x0050 are displayed in “xx”.For less than 1 hour, the display is indicated per 10 min-utes.PONTM xxxxx0000110922 are displayed in “xxxxx”.MAX 10922 (hours)4Disc action duration displayCDTM 0Hx x050 are displayed in “xx”.For less than 1 hour, the display is indicated per 10 min-utes.CDTM xxxxx0000110922 are displayed in “xxxxx”.MAX 10922 (hours)5Disc Eject number of times displayEJCNT xxxxxDisplay Disc Eject number of times.MAX 65535 (times)5Disc Eject number of times clearClear Disc Eject number of times by pressing for 2 seconds when it is displayed.Forced Power OFF information displayPOFF No forced Power OFFPOFF PNLForced Power OFF due to Syscon-Panel communication error.Forced Power OFF info clearClear forced Power OFF information by pressing for 2 sec-onds when it is displayed. CD Error Information Display ModeOperation Display content DetailsDISPCD error information display modeTransit to CD error information display mode.Move between BAND (Forward search)items with /CD Mech error log displayMECHA ER#:x xMech error history 1,2,3 (latest)#: History No. (1,2,3)xx: numbers of errors, “-” when there is noneCD Load error info displayLOAD ER#:x xLoad error switch 1,2#: Switch No. (1,2)xx: numbers of errors, “-” when there is noneCD Eject error info displayEJECT ER#:xxEject error switch 1,2,3,4#: Switch No. (1,2,3,4)xx: numbers of errors, “-” when there is noneCD time code error count information display (count skip)CNT LOSECD time code error count information (count skip) mode displayCDDA :x xCD-DA error count numbersxx: numbers of errors and “-” when there is noneCDROM :x xCD-ROM (compressed fi le) error count numbersxx: numbers of errors and “-” when there is noneCD time code error count information display (no count update)CNT STAYCD time code error count information (count not updated) mode displayCDDA :x xCD-DA error count numbersxx: numbers of errors and “-” when there is noneCDROM :x xCD-ROM (compressed fi le) error count numbersxx: numbers of errors and “-” when there is noneTEST MODE8KDC-208U/248U/4051UGM/4051URM/MP148U/MP248UKDC-U3049/U349A/U349G/U349R/U349S/U4049Operation Display content DetailsDISPCD error information clearCD error information all clearDISP Mode release CD error information display mode release6. DC Error Information Mode Default status immediately after the mode activationIt shall be same as normal activation. Mode structureDC Error Info Mode is enabled regardless of current source. Mode contentSyscon shall display the following information after entering this mode. The operation shown below shall be workable.Display content DetailsDC ERRWhen DC error is detected (in case that one of capacitor leakage, wrong connection or other detection is found)D COKWhen DC error is not detected (in case that none of capacitor leakage, wrong connection or other detection is not found) Mode operation specifi cation Operation Display content Details1 DC ERR1displayDC1 ERRWhen wrong connection & DC error in other detection dura-tion is detected DC1 OKWhen wrong connection & DC error in other detection dura-tion is not detected1 DC ERR1 clear DC1 OKClear detection information when wrong connection & DC er-ror in other detection duration is displayed. (Clear data fl ash)2 DC ERR2 display DC2 4Display detecting number of times in capacitor leakage de-tection duration (04)2 DC ERR2 clear DC2 0Clear number of times for detection information in capacitor leakage detection duration. (Clear data fl ash)7. FM/AM channel space switchingProcedure NoteWhile Power OFF, pressing and holding 1 key and 5 key, and press SRC key to Power ON.FM200kHz/AM10kHz FM50kHz/AM9kHzTEST MODE9KDC-208U/248U/4051UGM/4051URM/MP148U/MP248UKDC-U3049/U349A/U349G/U349R/U349S/U4049Refer to the schematic diagram for the values of resistors and capacitors.CN101CN102SW4SW3SW2SW1R1SL1151B1SL226SP-SP+FE-WHTLO-LO+WHTYELREDBLKYELFE+ORGORGRESTMGND1CD PLAYER UNITX32-6430-00 A/2 (LVB11003-001A)X32 B/2PC BOARD (FOIL SIDE VIEW)EDCBA123456710KDC-208U/248U/4051UGM/4051URM/MP148U/MP248UKDC-U3049/U349A/U349G/U349R/U349S/U4049PC BOARD (FOIL SIDE VIEW)Q321Q251D251D321D2D1Q341D341IC1IC580D102D112D540D113IC540IC501Q540IC80D110D502D503D100D101Q782Q971Q970Q951Q780Q781IC771IC93IC531IC532IC530D781D780D782D301D970D971D132D783IC161C253R347R349R461R257R343L10R9R10C2C6R2C1C29C27R3C12C11R6R7R324R310 R400C317R1R333R168C168R477R320R373 R342C341R341R332R351R321C321R255 R253R252R251C26C28R323C17R4C18 R11C16 C19 C22R5 R8R165 R163R161R167R162C308 C307C319 C318L161C166R334C170 C171R340R322C254 R258R330 R331 R353R254R256C331R352R350TH301R303R304C313C316C169C351R305R780C3