Sony-STRDE185-rec-sm 维修电路原理图.pdf

1SERVICE MANUALUS ModelAEP ModelUK ModelSTR-DE185FM STEREO/FM-AM RECEIVERAUDIO POWER SPECIFICATIONSPOWER OUTPUT AND TOTALHARMONIC DISTORTION:With 8 ohm loads, both channels driven, from40 20,000 Hz; rated 100 watts per channelminimum RMS power, with no more than0.09 % total harmonic distortion from 250milliwatts to rated output (Models of area codeUS only).Amplifier sectionPOWER OUTPUTModels of area code USRated Power Output at Stereo Mode(8 ohms 40 Hz 20 kHz, THD 0.09 %)100 W + 100 WModels of area code AEP, UKRated Power Output at Stereo Mode(8 ohms 1 kHz, THD 0.7 %)100 W + 100 W 1)1) Measured under the following conditions:Area codePower requirementsAEP, UK230 V AC, 50 HzFrequency responseCD, MD/TAPE,20 Hz 50 kHzVIDEO 1, VIDEO 2+0/0.5 dB (with bassboost bypassed)Inputs (Analog)CD, MD/TAPE,Sensitivity: 250 mVVIDEO 1, VIDEO 2Impedance: 50 kilohmsS/N 2) : 85 dB(A, 250 mV 3) )2) INPUT SHORT.3) Weighted network, input level.SPECIFICATIONSOutputsMD/TAPE, VIDEO 1Voltage: 250 mVImpedance: 10 kilohmsBass Boost:+8 dB at 70 HzTone:10 dB at 100 Hz and10 kHzFM tuner sectionTuning range87.5 108.0 MHzAntenna terminals75 ohms, unbalancedIntermediate frequency10.7 MHzSensitivityMono:18.3 dBf, 2.2 V/75 ohmsStereo:38.3 dBf, 22.5 V/75 ohmsUsable sensitivity11.2 dBf, 1 V/75 ohmsS/NMono:76 dBStereo:70 dBHarmonic distortion at 1 kHzMono:0.5%Stereo:0.8%Separation35 dB at 1 kHzFrequency response30 Hz 15 kHz,+0.5/2 dBSelectivity60 dB at 400 kHzVer 1.0 2002. 029-873-586-012002B0400-1 2002.02Sony CorporationHome Audio CompanyPublished by Sony Engineering Corporation Continued on next page RadioFans.CN 收音机爱 好者资料库2SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINEWITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTS WHOSEPART NUMBERS APPEAR AS SHOWN IN THIS MANUAL ORIN SUPPLEMENTS PUBLISHED BY SONY.STR-DE185AM tuner sectionTuning rangeModels of area code USWith 10-kHz tuning scale: 530 1710 kHz 4)With 9-kHz tuning scale:531 1710 kHz 4)Models of area code AEP, UKWith 9-kHz tuning scale:531 1602 kHzAntennaLoop antennaIntermediate frequency450 kHzUsable sensitivity50 dB/m (at 1,000 kHz or999 kHz)S/N45 dB (at 50 mV/m)Harmonic distortion1.0 % (50 mV/m,400 Hz)Selectivity At 9 kHz:35 dB At 10 kHz:40 dB4) You can change the AM tuning scale to 9 kHz or10 kHz. After tuning in any AM station, turn offthe receiver. Hold down PRESET TUNING + andpress ?/1. All preset stations will be erased whenyou change the tuning scale. To reset the scale to10 kHz (or 9 kHz), repeat the procedure.GeneralPower requirementsArea codePower consumptionUS120 V AC, 60 HzAEP, UK230 V AC, 50/60 HzPower consumptionArea codePower consumptionUS190 WAEP, UK210 WPower consumption (during standby mode)0.5 W (for models of all area code)AC outletsArea codeAC outletsUS1 switched, 120 W/1A MAXAEP, UK1 switched, 100 W MAXDimensions430 145 300 mm(16 7/8 5 6/8 11 6/8 in.)including projecting partsand controlsMass (Approx.)7.0 kg (15 lb 7 oz)Supplied accessoriesFM wire antenna (1)AM loop antenna (1)Remote commander RM-U185 (1)R6 (size-AA) batteries (2)Design and specifications are subject to change withoutnotice.MODEL IDENTIFICATION BACK PANEL Part No.MODELPART No.US4-238-277-0sAEP4-238-277-1sUK4-238-277-2sRadioFans.CN 收音机爱 好者资料库3TABLE OF CONTENTS1. GENERALMain unit . 4Remote button description. 52. DISASSEMBLY2-1. Case . 62-2. Front Panel Section . 72-3. Back Panel. 72-4. Main Board . 83. TEST MODE. 94. DIAGRAMS4-1. IC Pin Description. 104-2. Circuit Boards Location . 114-3. Block Diagram Main Section .124-4. Block Diagram Power Section . 134-5. Printed Wiring Board Main Section . 144-6. Printed Wiring Boards H/P, Outlet Section . 154-7. Schematic Diagram Main Section (1/2) .164-8. Schematic Diagram Main Section (2/2) .174-9. Schematic Diagram Display Section .184-10. Printed Wiring Board Display Section . 194-11. Printed Wiring Board Power SW Section .205. EXPLODED VIEWS5-1. Case Section .215-2. Front Panel Section .225-3. Chassis Section . 236. ELECTRICAL PARTS LIST. 24STR-DE1851.5 k0.15 FACvoltmeter(0.75 V)To Exposed MetalParts on SetEarth GroundFig. A. Using an AC voltmeter to check AC leakage.SAFETY CHECK-OUTAfter correcting the original service problem, perform the followingsafety check before releasing the set to the customer:Check the antenna terminals, metal trim, “metallized” knobs, screws,and all other exposed metal parts for AC leakage. Check leakage asdescribed below.LEAKAGE TESTThe AC leakage from any exposed metal part to earth ground andfrom all exposed metal parts to any exposed metal part having areturn to chassis, must not exceed 0.5 mA (500 microamperes).Leakage current can be measured by any one of three methods.1. A commercial leakage tester, such as the Simpson 229 or RCAWT-540A. Follow the manufacturers instructions to use theseinstruments.2. A battery-operated AC milliammeter. The Data Precision 245digital multimeter is suitable for this job.3. Measuring the voltage drop across a resistor by means of a VOMor battery-operated AC voltmeter. The “limit” indication is 0.75V, so analog meters must have an accurate low-voltage scale. TheSimpson 250 and Sanwa SH-63Trd are examples of a passiveVOM that is suitable. Nearly all battery operated digitalmultimeters that have a 2V AC range are suitable. (See Fig. A)4STR-DE185SECTION 1GENERALThis section is extractedfrom instruction manual.List of Button Locations and Reference Pages5GBList of Button Locations and Reference PagesMain unitHow to use this pageUse this page to find the location of buttons that arementioned in the text.Illustration numberrNAME 5 (18)RRName of button/partReference pageALPHABETICAL ORDERA HAM 8 (13, 14)BALANCE L/R q; (12)BASS +/ wa (12)BASS BOOST ql (12)CD qg (8, 12)DIRECT wg (13)DISPLAY qa (12, 16)Display 9 (11-16, 18, 19)FM 6 (13, 14)FM MODE wd (14)I OIR (receptor) 2 (4, 22)SHIFT wh (15)SLEEP (models of area code U)4 (19)SPEAKERS A wj (10, 12)SPEAKERS B wk (10, 12)T ZTREBLE +/ w; (12)TUNER qh (8, 12-15, 18)TUNING/CHAR +/ ws (14, 18)VIDEO 1 qs (12)VIDEO 2 qd (8, 12)BUTTON DESCRIPTIONS?/1 (power) 1 (11, 13, 23)MASTER VOLUME qj (12, 20)MD/TAPE qf (8, 12)MEMORY/ENTER wf (13, 15,18)MUTING qk (12, 20)NAME 5 (18)Numeric buttons 3 (13)P SPHONES wl (12, 21)PRESET/PTY SELECT +/(models of area code CEL,CEK) 7 (15, 16)PRESET TUNING +/ (models ofarea code U) 7 (15, 23)PTY (models of area code CEL,CEK) 4 (16)12 3456789q;qaqsqdqfqgqhqjqkqlw;wawswdwfwgwhwjwkwl5STR-DE18524GBRemote button descriptionYou can use the remote RM-U185 to operatethe components in your system.100789456123ENTERCDVIDEO 2MD/TAPEVIDEO 1DVD TUNERSYSTEMSTANDBYSHIFT CH/PRESET +TREBLEMUTINGBASS BOOSTTV/VIDEO / ANTTV/VTR+BASS+TV VOLTV CH+L BALANCE RMASTERVOLRETURND. TUNINGTOP MENUDVD MENUENTERfFGgfFGgSLEEPAV?/1?/1D.SKIPThe tables below show the settings of eachbutton.RemoteOperationsFunctionButtonSLEEPReceiverActivates the sleepfunction and the durationwhich the receiver turnsoff automatically.?/1ReceiverTurns the receiver on oroff.VIDEO 1ReceiverTo watch VCR.(VTR mode 3)VIDEO 2ReceiverTo watch VCR.(VTR mode 1)DVDReceiverTo watch DVD.MD/TAPEReceiverTo listen to Minidisc oraudio tape.CDReceiverTo listen to compact disc.TUNERReceiverTo listen to radioprograms.SHIFTReceiverPress repeatedly to selecta memory page forpresetting radio stationsor tuning to presetstations.D.TUNINGReceiverTuner station directkey-in-mode.BALANCEReceiverAdjust the balance.L/RBASSReceiverReinforce the bass.BOOSTTREBLEReceiverAdjust the treble tone+/quality.MUTINGReceiverMutes the sound from thereceiver.BASS +/ReceiverAdjust the bass tonequality.NoteWhen you press the function buttons (VIDEO 1,VIDEO 2, DVD), the input mode of the TV might notswitch to the corresponding input mode that youwant. In this case, press the TV/VIDEO button toswitch the input mode of the TV.XxNmM.O6STR-DE185Note : This set can be disassemble according to the following sequence.SECTION 2DISASSEMBLY2-1. CASE2-1.CASE(Page 6)2-2.FRONT PANEL SECTION(Page 7)2-3.BACK PANEL(Page 7)SET2-4.MAIN BOARD(Page 8)Note : Follow the disassembly procedure in the numerical order given.1two screws(case 3 TP2)2two screws(case 3 TP2)3two screws(case 3 TP2)4case7STR-DE1852-2. FRONT PANEL SECTION2-3. BACK PANEL6front panel section4two screws(BVTP3 x 8)1CN42CN53CNP8015four screws(BVTP3 x 8)1CN32CNP9013CNP9074three screws(BVTP3 x 8)5two screws(BVTP3 x 8)6two screws(BVTP3 x 8)7 screw(BVTP3 x 8)8 screw(BVTP3 x 8)9 back panel (DE1)8STR-DE1852-4. MAIN BOARD4two screws(BVTP3 x 8)5screw(BVTP3 x 8)8MAIN board6screw(BVTP3 x 8)73two screws(BVTP3 x 8)1CNP9042CNP9059STR-DE185SECTION 3TEST MODEFluorescent Indicator Tube Test ModeAll fluorescent segments are tested. When this test is activated, allsegments turn on at the same time, then each segment turns on oneafter another.Procedure:1. While pressing the five function buttons of VIDEO 1, VIDEO 2,MD/TAPE, CD and TUNER simultaneously, press the ?/1button to turn the power ON.2. The FL tube will illuminate in half light on. The following dis-play will be repeated whenever the five function buttons arepressed. Operation of function buttons3. Press any button other than the function buttons to release thecheck mode.AUTO-BETICAL Check Mode (AEP, UK models)To auto-scanning and memories of RDS station.Procedure:1. While pressing the MEMORY/ENTER button, press the ?/1button to turn the power ON.2. The message “AUTO-BETICAL SELECT” are scrolled.AM Tuning Interval Selection Mode (US model)Either 9 kHz step or 10 kHz step can be selected for the AM tuninginterval.Procedure:1. While pressing the TUNING/CHAR + button, press the ?/1button to turn the power ON.2. Either the message “9k STEP” or “10k STEP” appears.3. Select the desired step.Software Version Display ModeThe software version is displayed.Procedure:1. While pressing the two buttons of SPEAKERS B and VIDEO 1simultaneously, press the ?/1 button to turn the power ON.2. The software version is displayed.all light on half light on 1 half light on 2 all light offex.)US model: U *.* AEP, UK model : CE *.*AreaShift version10STR-DE185SECTION 4DIAGRAMS1 to 7DIG7 to 1ODigit drive signal output to the fluorescent indicator tube (FL201).8+5VPower supply pin (+5 V)9CLOSerial clock signal output to FM/AM tuner pack.10DOOSerial data signal output to FM/AM tuner pack.11DIISerial data signal input from FM/AM tuner pack.12CEOSerial chip enable signal output to FM/AM tuner pack.13VOL DATAOSerial data signal output to sound control IC.14VOL CEOSerial clock signal output to sound control IC.15RDS DATAIRDS data signal input from FM/AM tuner pack. (AEP, UK model only)16PROTECTORIOverload detection signal input17RESETIReset signal input18TUNEDITUNED indicator detection signal input from FM/AM tuner pack.19STEREOISTEREO indicator detection signal input from FM/AM tuner pack.20AVSSAnalog ground21VERSIONIDestination select signal input (Fixed at H: US model, L: AEP, UK model)22FM SIGNAL OUTIFM/AM signal meter voltage detection signal input from FM/AM tuner pack.(AEP, UK model only)23 to 28AD6 to 1IFunction keys signal input29AVDDA/D converter power supply pin (+5 V)30AVREFA/D converter reference voltage input (+5 V)31NCNot used. (Connect to AVREF pin in this set)32OPENNot used. (Open)33GNDGround34X1IMaster clock input (4.19 MHz)35X2OMaster clock output (4.19 MHz)36REC SW1OVIDEO 1 ON/OFF signal output37REC SW2OMD/TAPE ON/OFF signal output38, 39VOL A, BIMaster volume JOG data input A, B40FUNC.MUTEONot used. (Fixed at L in this set)41CKOSerial clock signal output to electoric volume IC.42DATAOSerial data signal output to electoric volume IC.43STBOSerial data strobe signal output to electoric volume IC.44SYS.POWERISystem power signal input45AC MUTEOA-Class mute signal output46RDS INTIRDS clock signal input from FM/AM tuner pack. (AEP, UK model only)47STOPIStop signal input from reset signal generator IC.48VSSGround49SIRCSISircs signal input from remote control receiver IC.50TUNER MUTEOMuting control signal output to FM/AM tuner pack.51NCNot used. (Open)52+5VPower supply pin (+5 V)53BASS B. LEDOBASS BOOST LED drive signal output54SPK A LEDOSPEAKERS A LED drive signal output55SPK B LEDOSPEAKERS B LED drive signal output4-1. IC PIN DESCRIPTION IC201 PD78044FGF-200-3B9 (SYSTEM CONTROLLER, FL DRIVER)Pin No.Pin NameI/OPin DescriptionSTR-DE185111156RY R1 COILOPower relay (12V) drive signal output57RY POWEROAC power relay (9V) drive signal output58RY AOSpeakers A relay (12V) drive signal output59RY BOSpeakers B relay (12V) drive signal output60RY HPOPhones relay (12V) drive signal output61NCNot used. (Open)62 to 70S15 to 7OSegment drive signal output to the fluorescent indicator tube (FL201).71VLOADPower supply pin (-24 V)72 to 77S6 to 1OSegment drive signal output to the fluorescent indicator tube (FL201).78 to 80DIG10 to 8ODigit drive signal output to the fluorescent indicator tube (FL201).Pin No.Pin NameI/OPin Description4-2. CIRCUIT BOARDS LOCATIONMAIN boardOUTLET boardPOWER SW boardHP boardDISPLAY boardSTR-DE18512124-3. BLOCK DIAGRAM MAIN SECTION 97531142249712877 - 72,70 - 627 - 1,80 - 782726252444235417343515 4619 18 50 12 10 11 9133736456058591656574713541 42 43323112433IC904+10V1LEDDRIVERQ204LEDDRIVERQ20655LEDDRIVERQ205KEY MATRIXFL201FLUORESCENTINDICATORTUBE1REMOTECONTROLRECEIVERIC20229203289 10151438533913TREBLELMIDDLELBASSLCONTROLVOLUMECONTROLFM SG OUTRDS DATARDS INTSTEREOTUNEDMUTECEDIDOCLFM SIGNAL OUTRDS DATARDS INTSTEREOTUNEDTUNER MUTE CEDODICLVOL CLVOL DATACKDATASTBREC SW2REC SW1AC MUTERY HPRY ARY BPROTECTORRY R1 COILRY POWERSTOPAC MUTEST-RR-CHR-CHR-CHR-CHR-CHR-CHR-CHST-LHP RELAYSPK A RELAYRESETSPK B RELAYPROTECTOR SIGR1 COIL RELAYPOWER RELAYSTOP SIGNALRESETSWITCHQ201,202BASS B.LEDVOL AVOL BX1X2VLOADAD1AD2AD3AD4AD5SYS.POWERAD6SPK A LEDSPK B LEDDIG1 IDIG10S1 I S15SIRCSS201S202S203I / ISPEAKERSD205D206SPEAKERSABX2014.19MHzD203RV201MASTER VOLUMEBASSBOOSTABS204-239SYSTEM CONTROLLER,FL DRIVERIC201J801 (1/2)J802 (1/2)-1L-2RINCD-5L-6RINMD/TAPEJ801 (2/2)VIDEO,MD/TAPESELECTIC404AUDIO AMPIC403SOUND CONTROLIC401-3L-4ROUTMD/TAPEJ802 (2/2)-3L-4RAUDIO OUTVIDEO 1-1L-2RAUDIO INVIDEO 2-5L-6RAUDIO INVIDEO 1FM 75COAXIALAMANTENNA+10V10VL CHR CHSTEREOTUNEDMUTECEDIDOCLSTEREOTUNEDMUTECEDIDOCLFM SIGNALOUTRDS DATARDS INTFM SG OUTRDS DATARDS INT3.3VR CH+3.3VREG-24VF1 F2REC LVOL LOUT LTUNER LCD LMD LVIDEO 2LINLOUTVIDEO 1CLKDATACLKSTBDATAELECTRONICVOLUMEIC402Q424INV.Q474INV.TM301FM/AM TUNER UNITAEP,UKMODELPOWERSECTION1 Signal path : FM/AM : MD/TAPE : VIDEO 1 : CD : VIDEO 2 R-ch is omitted due to same as L-ch.(Page 13)STR-DE18513134-4. BLOCK DIAGRAM POWER SECTION 623DRIVEPOWER AMPQ701-704BIASMUTE CONTROLQ680113 14 15-24VREGQ904+5V REGIC90231+10V REGIC90331678253RELAY DRIVERQ783RELAY DRIVERQ903RELAY DRIVERQ901+5.6VREGQ902RELAY DRIVERQ782RELAY DRIVERQ781+B-B-24V+5V+10V+5.6VOUT CV+RESETVSAVSCRESET/+5.6V REGIC901VSB/SESINF2F2RY982F901F902RY981RY781R-CHRY782RY783RECTD901-904RECTD908-911RECTD907T901POWERTRANSFORMERT902POWERTRANSFORMERD905D906CNJ901ACOUTLETSWITCHED 120W/1A MAXAC 120V 60 Hz (US)SWI