Sony-STRDE1015G-rec-sm 维修电路原理图.pdf

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1、 1 SERVICE MANUALMICROFILMSTR-DE1015GSPECIFICATIONSFM STEREO FM-AM RECEIVER Continued on next page US ModelCanadian ModelRadioFans.CN 收音机爱 好者资料库 2 RadioFans.CN 收音机爱 好者资料库 3 TABLE OF CONTENTS1. SERVICING NOTE. 42. GENERAL.53. DISASSEMBLY3-1. Front Panel . 263-2. Balance Board, Display Board and Volum

2、e Board. 264. TEST MODE. 275. ELECTRICAL ADJUSTMENTS. 286. DIAGRAMS6-1. IC Pin Functions. 306-2. Circuit Boards Location. 476-3. Block Diagrams Input/Output Section. 49 Power Amp Section . 51 DA Section. 53 DSP Section . 55 AC-3 (RF) Section . 57 OSD Section . 59 OSD Control Section . 61 Panel Secti

3、on . 63 Power Section . 656-4. Printed Wiring Board Input/Output Section . 686-5. Schematic Diagram Input/Output Section . 716-6. Schematic Diagram Power Amp Section . 756-7. Printed Wiring Board Power Amp Section . 796-8. Printed Wiring Board Digital Section . 836-9. Schematic Diagram Digital (D/A)

4、 Section . 876-10. Schematic Diagram Digital (Control) Section . 916-11. Schematic Diagram Digital (Dolby AC-3) Section . 956-12. Printed Wiring Board Panel Section . 986-13. Schematic Diagram Panel Section . 1016-14. Schematic Diagram OSD Section . 1056-15. Printed Wiring Board OSD Section .1096-16

5、. IC Block Diagrams . 1127. EXPLODED VIEWS7-1. Case Section.1177-2. Front panel Section .1187-3. OSD Board Section.1197-4. Chassis Section . 1208. ELECTRICAL PARTS LIST. 121SAFETY CHECK-OUTAfter correcting the original service problem, perform the follow-ing safety checks before releasing the set to

6、 the customer:Check the antenna terminals, metal trim, “metallized” knobs, screws,and all other exposed metal parts for AC leakage. Check leakage asdescribed below.LEAKAGEThe AC leakage from any exposed metal part to earth Ground andfrom all exposed metal parts to any exposed metal part having aretu

7、rn to chassis, must not exceed 0.5 mA (500 microampers). Leak-age 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 P

8、recision 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.The Simpson 250 and Sanwa SH-63Trd are examples of a pa

9、s-sive VOM that is suitable. Nearly all battery operated digitalmultimeters that have a 2V AC range are suitable. (See Fig. A)Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may bedamaged by heat.ATTENTION AU COMPOSANT

10、 AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS PAR UNE MARQUE ! SURLES DIAGRAMMES SCHMATIQUES ET LA LISTE DESPICES SONT CRITIQUES POUR LA SCURIT DEFONCTIONNEMENT. NE REMPLACER CES COMPOSANTSQUE PAR DES PICES SONY DONT LES NUMROSSONT DONNS DANS CE MANUEL OU DANS LESSUPPLMENTS PUBLIS PAR SONY.SAFET

11、Y-RELATED COMPONENT WARNING !COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINEWITH MARK ! ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTSWHOSE PART NUMBERS APPEAR AS SHOWN IN THISMANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.Fig. A. Us

12、ing an AC voltmeter to check AC leakage.MODEL IDENTIFICATION BACK PANEL Parts No.Model4-989-885-44-989-885-5US modelCanadian modelParts No.ACvoltmeter(0.75V)1.5k0.15FEarth GroundTo Exposed MetalParts on Set 4 ALL CLEARMode which erases all the user memories registered in this unit andsets to setting

13、 at shipment.Procedure:1. With the power turned OFF, press the POWER button whilepressing the MODE button, AUDIO FUNCTION andVIDEO FUNCTION button simultaneously to turn ON thepower.2. ALL CLEAR 3/5 will be displayed on the fluorescent indicatortube, and ALL CLEAR will be executed.FACTORY SETMode wh

14、ich sets the memory of the unit to the setting of adjust-ment and check at factory. (Not used for servicing.)Procedure:1. With the power turned OFF, press the POWER button whilepressing the MODE button and AUDIO FUNCTION buttonsimultaneously to turn ON the power.2. FACTORY SET will be displayed on t

15、he fluorescent indicatortube, and FACTORY SET will be executed.Note: In case you return the unit to the customer, do not performFACTRY SET. If you do it, perform ALL CLEAR.Fluorescent indicator tube, LED all lit modeProcedure:1. With the power turned OFF, press the POWER button whilepressing the MOD

16、E button and VIDEO FUNCTION buttonsimultaneously to turn ON the power.2. The fluorescent display tubes and LEDs will all light up. Re-lease the buttons in the order of VIDEO FUNCTION , andMODE .3. The Fluorescent indicator tube display changes as follows bypressing the DPC MODE .(Pressing the other

17、buttons will exit this mode.)SECTION 1SERVICING NOTEAdjustment of OSD Screen PositionThe position of the screen can be adjusted freely to correct the de-viation of the OSD screen caused by the monitor type that users areusing.1. Move the cursor of the remote commander supplied as an acces-sory, and

18、display the OSD screen.2. Click the SET UP of the OSD screen.3. Next click TV SET.4. Next click GRAPHIC POSITION SET.5. The screen for adjusting the OSD screen position will be dis-played. Adjust the position with the remote commander suppliedas an accessory.6. Click EXIT to end.AM Tuning Step 9 kHz

19、/10 kHz SelectionMethod:1. Turn ON the power, set the AUDIO FUNCTION to AM, andturn OFF the power.2. While pressing the TUNING + button or PRESET TUNING +button, press the POWER button.3. “AM 9K STEP” or “AM 10k STEP” will be displayed on the FLdisplay tube.9Fluorescent indicator tube and all LEDs a

20、re OFF9Partial lighting of fluorescent indicator tube 2, LEDs are OFF *19Partial lighting of fluorescent indicator tube 1, LEDs are OFF *19Fluorescent indicator tubes, LEDs are all lit Press DPC MODE button. Press DPC MODE button. Press DPC MODE button.9 Press DPC MODE button.*1 Those other than the

21、 POWER LED go OFF.4. To exit the mode, press the POWER button to turn OFF thepower.12345 AC-3 RFDISCRETE PRO LOGIC MONO STEREO MEMORYMEMORYSOUND FIELDDIGITALDIGITAL 26 SECTION 3DISASSEMBLY3-2. BALANCE BOARD, DISPLAY BOARD AND VOLUME BOARD0 DISPLAY board8 Four screws (BVTP2.6x8)9 Remove the four claw

22、s.7 Two screws (BVTP2.6x8)4 Two screws (BVTP2.6x8)5 BALANCE board and VOLUME board6 Bracket3 Knob(Balance)1 Knob(Volume)2 NutNote: Follow the disassembly procedure in the numerical order given.3-1. FRONT PANEL1 Three screws (BVTP3x8)2 Screw(BVTP3x8)3 Flat type wire (19 core)(CNS701)4 Flat type wire

23、(CNJ203)5 Flat type wire (21 core)(CN3301)8 Flat type wire (19 core)(CNS402)7 Front panel6 Three screws (BVTP3x8) 27 SECTION 4TEST MODESelf-Diagnosis and Test ModeThis unit is provided with a “self-diagnosis and self-recovery func-tion” which detects DSP errors and automatically recovers the unit,an

24、d a test mode for performing operation checks during repairs.1. MAIN FUNCTIONS DSP self-diagnosis program for servicing and operation checkmode.2. ENTERING THE TEST MODEWhile pressing the MODE button and AUDIO FUNCTION button simultaneously in the power OFF state, press the POWERbutton.3. Self-diagn

25、osis Mode for Servicing/Display of DSPErrors3-1. Self-diagnosis Mode for ServicingBefore entering the test mode, DSP self-diagnosis program for ser-vicing will be run. When an error is detected:The error message is displayed on the fluorescent display tube.When several errors occur at the same time,

26、 only the last errordetected will be displayed. When no error is detected:First, “DSP ERROR” will be displayed, then “DSP NO ERROR”will be displayed, and the operation check mode will be set.Table-1:Error Message/Fluo-rescent Display TubePossible ReasonsDSP ERRORWhen a DSP error is detected, after t

27、his dis-play, the contents of “3-2. Display of DSP Op-erations” will be displayed.Display of errorPossible causeMostly due to faulty connection (soldering) betweenDSP and microprocessorFaulty DSP clock (X3501 and onwards), faulty DSPpart, etc.1 DSPBOOTERROR2 DSPHREQERROR3 DSPVRFYERROR1212Overrunning

28、 of DSP due to heat, microprocessorbugging, or IC3409 (DIGITAL board PLL) is faulty4 DSP 1 RPLYFaulty DSP part, or faulty microprocessor part, etc.4. OPERATION CHECK MODEOutputs the Lch LD/DVD OPTICAL signal to the FRONT Lch,REAR Lch, CENTER, and the Rch to the FRONT Rch, REAR Rch,and CENTER.5. NOTE

29、 AFTER USING THE TEST MODEBe sure to unplug the AC plug after the test mode is performed.123-2. Display of DSP Operations 28 SECTION 5ELECTRICAL ADJUSTMENT TUNER SECTIONNo adjustment is needed due to a tuner unit (TU401). OSD SECTIONOSD WIDTH AdjustmentNote: Perform “ALL CLEAR” before this adjustmen

30、t.(Refer to Servicing note on page 4)Connection:Procedure:1. Press the POWER button and turn ON the power.2. The OSD function frame will be displayed on the monitor. Thisscreen will disappear in a few seconds automatically when theinput of codes using the remote commander stops.If it disappears duri

31、ng adjustments, move the cursor of the re-mote commander supplied as an accessory. The screen will ap-pear again.3. While watching the monitor screen, adjust CT201 of the OSD(V) board so that the following adjustment standard is satisfied.OSD COLOR BURST AdjustmentConnection:Procedure:1. Without any

32、thing connected to the external input terminal, pressthe POWER button and turn ON the power.2. Adjust CT202 of the OSD (V) board so that the reading on thefrequency counter becomes 3.579545 MHz 10 MHz.OSD PICTURE AdjustmentConnection:Connection 1:MONITOR OUTSETMonitorAdjustment standard:Adjust so th

33、at the width B becomes one and a half times of width A.1.5A = BNOTE:Extra margin is provided in this adjustment in consideration of thedeviation of the screen according to the type of monitor used.Consequently, the user is able to adjust the position of the screenfreely. (For details, refer to “Adju

34、stment of OSD Screen Position”in 1. Servicing note. Refer to page 4.)frequency counterOSD (V) boardJW232+MonitorVectorscopesetMONITOR OUTConnection 2:MonitorVectorscopesetMONITOR OUTVIDEO 1 INVTR etc.Procedure 1:1. Without anything connected to the external input terminal (con-nection 1), press the

35、POWER button and turn ON the power.2. Check that the OSD function frame screen is displayed on themonitor. If no OSD function frame screen is displayed, movethe cursor button of the remote commander supplied as an ac-cessory provided to display the screen.3. Observe the vectorscope, and adjust RV201

36、 of the OSD (V) boardso that the light dots converge in the BLUE area.4. Connect a dynamic picture video device to the external inputterminal (VIDEO 1 IN jack) of this unit (Connection 2).5. Press the VIDEO FUNCTION button and set the input sourceto VIDEO 1.6. Move the cursor of the remote commander

37、 supplied as an acces-sory provided, and display the OSD function frame.7. Observe the vectorscope. Check that the light dots in the BLUErange and the light dots adjusted at 3 are coinciding.8. If they do not coincide, disconnect the external video device,and adjust RV201 of the OSD (V) board again.

38、9. If the light dots when an external video device is connected andnot connected coincide, it indicates the end of the adjustment.monitor screenFUNCTIONSOUNDSETUPINPUTSUBUSER?+?=?P?p?)?(?0?1ABOSD function frame 29 Procedure 2: (When no vectorscope is used)Connection:1. Connect a dynamic picture vide

39、o device to the VIDEO 1 INjack of the unit.2. Press the VIDEO FUNCTION button, and set the input sourceto VIDEO 1.3. Move the cursor of the remote commander supplied as an ac-cessory provided, and display the OSD function frame.4. Take note of the blue and green screens at the bottom left of theOSD

40、function frame.5. Disconnect the video device connected at 1.6. Adjust RV201 of the OSD (V) board so that the blue and greenparts at the bottom left of the OSD function frame to the samecolor as the images checked at 4.Adjustment LocationOSD (V) BOARD (Component side)MonitorsetMONITOR OUTVIDEO 1 INV

41、TR etc.Monitormonitor screenFUNCTIONSOUNDSETUPINPUTSUBUSER?+?=?P?p?)?(?0?1OSD function frameBlue areaGreen areaNote) Perform this adjustment when disconnecting the external video de-vice. If the external video device is connected, there is no meaningin performing this adjustment due to the use of th

42、e color burst of theexternal device instead of the internal sync signal.JW232IC205CT201IC215RV201CT202CNP202OSD WIDTHOSD PICTUREOSD COLOR BURST 30 Function6-1. IC PIN FUNCTIONSSECTION 6DIAGRAMSOOOOOOOOOOOOOII/OOOOOIIIIIIIIIOO IC103 Mode controller (MB90673PF)Function123456789101112131415161718192021

43、22232425262728293031323334353637383940Pin No.Pin NameI/ONot usedNot usedNot usedNot usedNot usedNot usedSTANDBY indicator drive signal outputSURROUND indicator drive signal outputTONE indicator drive signal outputINDEX indicator drive signal outputGroundCD indicator drive signal outputDAT/MD indicat

44、or drive signal outputTAPE indicator drive signal outputTV indicator drive signal outputLD indicator drive signal outputVIDEO3 indicator drive signal outputVIDEO2 indicator drive signal outputVIDEO1 indicator drive signal outputSerial data output to OSD controllerSerial data input from OSD controlle

45、rSerial clock input/output with OSD controllerFL clear signal output to FL driver “H” : activeFL data output to FL diverFL clock output to FL diverFL latch output to FL driver “H” : activeRemote control signal input+5V power supply (Back-up)Reference voltage input (+) (+5V)Reference voltage input ()

46、 (Ground)GroundKey input 1Key input 2GroundKey input 3Key input 4Key input 5AD version setting inputVolume motor control signal outputVolume motor control signal outputMBUS-V2MBUS-MONMBUS-STATUS-OUTLED STANDBYLED SURRLED TONELED INDEXVSSLED CDLED DAT/MDLED TAPELED TVLED LDLED V3LED V2LED V1RX (SIN)T

47、X (SOUT)BUSYFL CLEARFL DATAFL CLKFL LATSIRCSVCC (A)+AVRAVRGND (D)AD KEY IN 1AD KEY IN 2VSS (D)AD KEY IN 3AD KEY IN 4AD KEY IN 5AD VERSIONVOL +VOL AbbreviationOSD : On Screen DisplayFL: Fluorescent indicator tube 31 IIIIIOIOOOIOIOOOOOOOOOOIFunction41424344454647484950515253545556575859606162636465666

48、768697071727374757677787980FunctionPin No.Pin NameI/OMode setting pin (Fixed at “H”)Mode setting pin (Fixed at “H”)Mode setting pin (Fixed at “L”)Stanby signal input (Fixed at “H”)STOP signal input “L” : activeReset output to system controller “L” : resetSlave data request signal input from system c

49、ontrollerMaster request signal output to system controllerMaster data output to system controllerMaster clock output to system controllerGroundNot usedNot usedGroundNot usedNot usedNot usedNot usedNot usedNot usedNot used (Ground)Reset signal input “L” : resetGroundClock output (4MHz)Clock input (4M

50、Hz)+5V power supply (Back-up)TUNER indicator drive signal outputPHONO indicator drive signal outputMUTE indicator drive signal outputLEARNING indicator drive signal outputDIRECT PASS indicator drive signal outputINPUT indicator drive signal outputVolume indicator drive signal output “H” : activeBass