Sony-STRDE815G-rec-sm 电路图 维修手册.pdf

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1、 1 SERVICE MANUAL MICROFILM Photo : STR-DE815G STR-D760Z/DE815G US Model STR-D760Z/DE815G Canadian Model E Model Australian Model PX Model STR-DE815G SPECIFICATIONS Continued on next page FM STEREO FM-AM RECEIVER RadioFans.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 CONTENTS 1. SERVICING NOTE

2、. 4 2. GENERAL.5 3. DISASSEMBLY 3-1. Front Panel . 24 3-2. Balance Board, Display Board and Volume Board. 24 4. ELECTRICAL ADJUSTMENTS. 25 5. DIAGRAMS 5-1. Circuit Boards Location. 27 5-2. Block Diagrams Dolby Surround Section . 29 OSD Section . 31 Power Amp Section . 33 Panel Section . 35 Power Sec

3、tion . 37 5-3. Printed Wiring Board Dolby Surround Section . 40 5-4. Schematic Diagram Dolby Surround Section . 43 5-5. Schematic Diagram OSD Section . 47 5-6. Printed Wiring Board OSD Section . 51 5-7. Printed Wiring Board Power Amp Section . 55 5-8. Schematic Diagram Power Amp Section . 59 5-9. Pr

4、inted Wiring Board Panel Section . 63 5-10. Schematic Diagram Panel Section . 67 5-11. IC Block Diagrams . 70 5-12. IC Pin Functions . 75 6. EXPLODED VIEWS 6-1. Case Section. 82 6-2. Front panel Section . 83 6-3. OSD Board Section. 84 6-4. Chassis Section . 85 7. ELECTRICAL PARTS LIST. 86 Notes on c

5、hip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUE

6、S POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. SAFETY-RELATED COMPONENT WARNING ! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE

7、PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety checks before releasing the set to

8、 the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE The AC leakage from any exposed metal part to earth Ground and from all exposed metal parts to any exposed metal part having

9、 a return 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 RCA WT-540A. Follow the manufacturers instructions to use these instruments. 2. A battery-operated AC milliammeter

10、. The Data Precision 245 digital multimeter is suitable for this job. 3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are

11、 examples of a pas- sive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A) Fig. A. Using an AC voltmeter to check AC leakage. To Exposed Metal Parts on Set 0.15F1.5k AC voltmeter (0.75V) Earth Ground MODEL IDENTIFICATION BACK PAN

12、EL Parts No. Parts No.Model 4-989-884-6 4-989-884-0 4-989-884-1 4-989-884-2 4-989-884-3 4-989-884-4 D760Z: US model DE815G : US model DE815G : Canadian model DE815G : E, PX model DE815G : Singapore, Malaysia model DE815G : Australian model RadioFans.CN 收音机爱 好者资料库 4 ALL CLEAR Mode which erases all th

13、e user memories registered in this unit and sets to setting at shipment. Procedure: 1. With the power turned OFF, press the POWER button while pressing the MODE button, AUDIO FUNCTION and VIDEO FUNCTION button simultaneously to turn ON the power. 2. ALL CLEAR ! will be displayed on the fluorescent i

14、ndicator tube, and ALL CLEAR will be executed. FACTORY SET Mode which 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 while pressing the MODE button and AUDIO FUNCTION button si

15、multaneously to turn ON the power. 2. FACTORY SET will be displayed on the fluorescent indicator tube, and FACTORY SET will be executed. Note: In case you return the unit to the customer, do not perform FACTRY SET. If you do it, perform ALL CLEAR. Fluorescent indicator tube, LED all lit mode Procedu

16、re: 1. With the power turned OFF, press the POWER button while pressing the MODE button and VIDEO FUNCTION button simultaneously 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 , and MODE . 3. The Fluorescent ind

17、icator tube display changes as follows by pressing the AUDIO FUNCTION . (Pressing the other buttons will exit this mode.) SECTION 1 SERVICING NOTE Adjustment of OSD Screen Position The position of the screen can be adjusted freely to correct the de- viation of the OSD screen caused by the monitor ty

18、pe that users are using. 1. Move the cursor of the remote commander supplied as an acces- sory, and 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

19、 the position with the remote commander supplied as an accessory. 6. Click EXIT to end. AM Tuning Step 9 kHz/10 kHz Selection Method: 1. Turn ON the power, set the AUDIO FUNCTION to AM, and turn OFF the power. 2. While pressing the TUNING + button or PRESET TUNING + button, press the POWER button. 3

20、. “AM 9K STEP” or “AM 10k STEP” will be displayed on the FL display tube. Key Check Mode Method: 1. With the power OFF, while pressing the MODE button and AUDIO FUNCTION button together, press the POWER but- ton. 2. “KEY TEST 24” will be displayed on the FL display tube. 3. The XX number is counted

21、down each time a button other than POWER is pressed until it becomes 00. (Buttons pressed once will not be counted again when pressed another time.) 4. When the number becomes 00, press the POWER button and exit the mode. 9 Fluorescent indicator tube and all LEDs are OFF 99 Partial lighting of fluor

22、escent indicator tube 2, LEDs are OFF *1 9 Partial lighting of fluorescent indicator tube 1, LEDs are OFF *1 9 Fluorescent indicator tubes, LEDs are all lit ENHANCEDPRO LOGICMONOMOVIE MUSIC 12SPORTS GAMESTEREOMONO SML THEATER SML HALL ACOUSTIC KARAOKE ARENA STADIUM HIGH MEMORY Press AUDIO FUNCTION b

23、utton. Press AUDIO FUNCTION button. Press AUDIO FUNCTION button. Press AUDIO FUNCTION button. *1 Those other than the POWER LED go OFF. 4. To exit the mode, press the POWER button to turn OFF the power. 5 SECTION 2 GENERAL This section is extracted from instruction manual. 6 7 8 9 10 11 12 13 14 15

24、16 17 18 19 20 21 22 23 24 SECTION 3 DISASSEMBLY 3-1. FRONT PANEL 3-2. BALANCE BOARD, DISPLAY BOARD AND VOLUME BOARD 1Three screws (BVTP 3x8) 3Flat type wire (19 core) (CNS701) 4Flat type wire (17 core) (CNJ203) 2Screw (BVTP 3x8) 6Flat type wire (19 core) (CNS402) 9Front panel 5Three screws (BVTP 3x

25、8) 8Remove the four claws. 7Six screws (BVTP 2.6x8) 9DISPLAY board 4Two screws (BVTP 2.6x8) 5BALANCE board and VOLUME board 6Bracket 3Knob (Balance) 2Nut 1Knob (Volume) 7Flat type wire (19 core) (CNS105) 8Remove the connector (CNP102) 25 26 SECTION 4 ELECTRICAL ADJUSTMENT TUNER SECTION No adjustment

26、 is needed due to a tuner unit (TU401). OSD SECTION OSD Width Adjustment Note: Perform “ALL CLEAR” before this adjustment. (Refer to Servicing note on page 4) Connection: SET Monitor Procedure: 1. Press the POWER button and turn ON the power. 2. The OSD function frame will be displayed on the monito

27、r. This screen will disappear in a few seconds automatically when the input of codes using the remote commander stops. If it disappears during 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

28、 CT201 of the S.VIDEO board so that the following adjustment standard is satisfied. OSD Color burst Adjustment Connection: MONITOR OUT frequency counter S.VIDEO board JW232 Procedure: 1. Without anything connected to the external input terminal, press the POWER button and turn ON the power. 2. Adjus

29、t CT202 of the S.VIDEO board so that the reading on the frequency counter becomes 3.579545 MHz 10 MHz. (US, CND, E, PX models) or 4.433619 MHz 10 MHz. (SP, MY, AUS models) Abbreviation CND : Canadian model SP: Singapore model MY: Malaysia model AUS : Australian model OSD Picture Adjustment Connectio

30、n: Connection 1: MONITOR OUT set Vectorscope Monitor Connection 2: Vectorscope set VTR etc. Monitor VIDEO 1 IN MONITOR OUT Procedure 1: 1. Without anything connected to the external input terminal (con- nection 1), press the POWER button and turn ON the power. 2. Check that the OSD function frame sc

31、reen is displayed on the monitor. If no OSD function frame screen is displayed, move the cursor button of the remote commander provided to display the screen. 3. Observe the vectorscope, and adjust RV201 of the S. VIDEO board so that the light dots converge in the BLUE area. 4. Connect a dynamic pic

32、ture video device to the external input terminal (VIDEO 1 IN jack) of this unit (Connection 2). 5. Press the VIDEO FUNCTION button and set the input source to VIDEO 1. 6. Move the cursor of the remote commander provided, and dis- play the OSD function frame. 7. Observe the vectorscope. Check that th

33、e light dots in the BLUE range 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 S. VIDEO board again. 9. If the light dots when an external video device is connected and not connected coincide, it indicates the

34、 end of the adjustment. Procedure 2: (When no vectorscope is used) Connection: VIDEO 1 IN VTR etc.setMonitor MONITOR OUT 1. Connect a dynamic picture video device to the VIDEO 1 IN jack of the unit. 2. Press the VIDEO FUNCTION button, and set the input source to VIDEO 1. 3. Move the cursor of the re

35、mote commander provided, and dis- play the OSD function frame. 4. Take note of the blue and green screens at the bottom left of the OSD function frame. 5. Disconnect the video device connected at 1. 6. Adjust RV201 of the S. VIDEO board so that the blue and green parts at the bottom left of the OSD

36、function frame to the same color as the images checked at 4. FUNCTIONSOUNDSETUP INPUTSUBUSER 1 0()pP+= Blue area OSD function frame Green area Note) Perform this adjustment when disconnecting the external video de- vice. If the external video device is connected, there is no meaning in performing th

37、is adjustment due to the use of the color burst of the external device instead of the internal sync signal. monitor screen Adjustment Location S. VIDEO BOARD (Component side) JW232 OSD widthOSD picture IC205 CT201 RV201 IC215 CT202 CNP202 OSD color burst monitor screen Adjustment standard: Adjust so

38、 that the width B becomes one and a half times of width A. 1.5A = B NOTE: Extra margin is provided in this adjustment in consideration of the deviation of the screen according to the type of monitor used. Consequently, the user is able to adjust the position of the screen freely. (For details, refer

39、 to “Adjustment of OSD Screen Position” in 1. Servicing note. Refer to page 4.) FUNCTIONSOUNDSETUP INPUTSUBUSER 1 0()pP+= OSD function frame AB 27 28 SECTION 5 DIAGRAMS 5-1. CIRCUIT BOARDS LOCATION VOLUME board STAND BY board S-A-P board REAR AMP board SW board BALANCE board SURR-AUDIO board AUDIO b

40、oard SP board SECONDARY board DISPLAY board MEMORY board VIDEO 3 board L.B SW board 5.1 board JOINT (B) board OSD board S. VIDEO board JOINT (OSD) board AMP. JOINT (F) board SURR board AMP. JOINT (R) board SP SW board H. P board AMP board AUDIO SW board VOL SEL board 29 30 5-2. BLOCK DIAGRAMS DOLBY

41、SURROUND SECTION 1 3 2 3 14 21 3 2 28 3027 29 5 68 7 26 2523 24 9 10 11 21 22 20 13 14 15 7 6 5 22 21 202 9 84 7 6 17 19 AM ANT (75) STEREOSTEREO A STOP T MUT IFD AUTO STOP T MUTE IF DATA IN CLOCK DATA CE L ch R ch 725 1920 7 73 22 21 16 1715 7 5 6 2 3 2 3 5 6 2 3 1 7 5 6 2 3 1 23 5 21 10 29 6 28 3

42、2 9 11 20 228 4 7 24 1 30 14 1513 7 1 MUTE Q452 MUTE-SW Q413 MUTE Q402 MUTE-SW Q412 MUTE Q403 MUTE Q451 MUTE Q401 L/R/C MUTE SW Q411 11 12 14 15 6 5 3 2 9810 4 13 1 2 4 30 29 27 6 7 8 24 25 23 9 10 11 21 22 20 13 14 15 TONE CONTROLLER IC502 Signal path : FM : AM : CD : TAPE : DAT/MD : TAPE (REC) : D

43、AT/MD (REC) : PHONO : AUDIO : SURROUND L R FRONT REAR CENTER 5.1 INPUT L R L R CD IN PHONO IN L R DAT/MD REC OUT L R FM 75 COAXIAL AM ANTENNA DAT/MD IN L R TAPE REC OUT L R TAPE IN L R TV/DBS AUDIO IN L R LD/DVD AUDIO IN L R VIDEO 2 AUDIO OUT L R VIDEO 2 AUDIO IN L R VIDEO 1 AUDIO OUT L R VIDEO 1 AU

44、DIO IN L R VIDEO 3 INPUT AUDIO L R 09 FM/AM TUNER TU401 AUDIO IN/OUT SELECTOR IC301 3 2 1 S LAT S DATA S CLK AUDIO SELECTOR IC303 S LAT S DATA S CLK 1 2 3 1 2 3 235 X401 4MHz DATA CLK LAT IN OUT R OUT L OUT S OUT C OUT R IN L IN 5V Q416Q415 IC401 AUDIO PROCESSOR AUDIO SELECTOR IC406 IC403 IC404 IC40

45、2 EQ AMP IC302 (1/2) EQ AMP IC302 (2/2) RY401 DIR. PASS SW Q410 324 S CLK S DATA T LAT BIAS Q552 VOLTAGE AMP Q501 VOLTAGE AMP Q551 BIAS Q502 BOOST SW Q414 12V D PASS BASS BOOST S CLK S DATA S LAT T LAT D LAT +12V L R C SL SR F/C/W MUTE SR MUTE SL MUTE L R L R L OUT R OUT C OUT SL OUT SP OUT C PSR PSL C SL SR L R S LAT S DATA S CLK 321 A PANEL SECTION (Page 35) B PANEL SECTION (Page 36) A PANEL SECTION (Page 35) A PANEL SECTION (Page 35) CENTER R