Sony STR-DH520 Multi Channel AV Receiver Service Manual 电路图.pdf

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1、SERVICE MANUAL Published by Sony EMCS (Malaysia) PG Tec Sony Corporation This receiver incorporates Dolby* Digital and Pro Logic Surround and the DTS* Digital Surround System. * Manufactured under license from Dolby Laboratories. Dolby, Pro Logic, and the double-D symbol are trademarks of Dolby Labo

2、ratories. * Manufactured under license under U.S. Patent #s: 5,451,942; 5,956,674; 5,974,380; 5,978,762; 6,226,616; 6,487,535; 7,212,872; 7,333,929; 7,392,195; 7,272,567 rated 90 watts per channel minimum RMS power, with no more than 0.09% total harmonic distortion from 250 milliwatts to rated outpu

3、t. Amplifi er section US model1) Minimum RMS Output Power (8 ohms, 20 Hz 20 kHz, THD 0.09%) 90 W + 90 W Stereo Mode Output Power (8 ohms, 1 kHz, THD 1%) 100 W + 100 W Surround Mode Output Power2) (8 ohms, 1 kHz, THD 10%) 130 W per channel CND, ECE, UK, AUS and TW models1) Minimum RMS Output Power (8

4、 ohms, 20 Hz 20 kHz, THD 0.09%) 85 W + 85 W Stereo Mode Output Power (8 ohms, 1 kHz, THD 1%) 100 W + 100 W Surround Mode Output Power2) (8 ohms, 1 kHz, THD 10%) 130 W per channel Continued on next page RadioFans.CN 收音机爱 好者资料库 STR-DH520 2 1) Measured under the following conditions: Area Power require

5、ments US, CND, TW 120 V AC, 60 Hz ECE, UK, AUS 230 V AC, 50 Hz 2) Reference power output for front, center, surround, surround back and front high speakers. Depending on the sound fi eld settings and the source, there may be no sound output. Frequency response Analog 10 Hz 70 kHz, +0.5/2 dB (with so

6、und fi eld and equalizer bypassed) Input Analog (PORTABLE IN) Sensitivity: 1 V/50 kohms S/N3): 96 dB (A, 500 mV4) Analog (Except PORTABLE IN) Sensitivity: 500 mV/50 kohms S/N3): 96 dB (A, 500 mV4) Digital (Coaxial) Impedance: 75 ohms S/N: 100 dB (A, 20 kHz LPF) Digital (Optical) S/N: 100 dB (A, 20 k

7、Hz LPF) Output (Analog) AUDIO OUT Voltage: 500 mV/1 kohm SUBWOOFER Voltage: 2 V/1 kohm Equalizer Gain levels 6 dB, 1 dB step 3) INPUT SHORT (with sound fi eld and equalizer bypassed). 4) Weighted network, input level. FM tuner section Tuning range 87.5 MHz 108.0 MHz Antenna (aerial) FM wire antenna

8、(aerial) Antenna (aerial) terminals 75 ohms, unbalanced Intermediate frequency 10.7 MHz AM tuner section Tuning range Area Tuning scale 10 kHz step 9 kHz step US, CND 530 kHz 531 kHz 1,710 kHz 1,710 kHz ECE, UK, AUS, TW 531 kHz 1,602 kHz Antenna (aerial) Loop antenna (aerial) Intermediate frequency

9、450 kHz Video section Inputs/Outputs Video: 1 Vp-p, 75 ohms COMPONENT VIDEO: Y: 1 Vp-p, 75 ohms PB: 0.7 Vp-p, 75 ohms PR: 0.7 Vp-p, 75 ohms 80 MHz HD Pass Through General Power requirements Area Power requirements US, CND, TW 120 V AC, 60 Hz ECE, UK, AUS 230 V AC, 50/60 Hz Power consumption 240W Pow

10、er consumption (during standby mode) 0.3 W (When “CTRL.HDMI” is set to “CTRL OFF”) Dimensions (width/height/depth) (Approx.) 430 mm 157.5 mm 322 mm (17 in 6 1/4 in 12 3/4 in) including projecting parts and controls Mass (Approx.) 7.6 kg (16 lb 13 oz) Supplied accessories Operating Instructions Quick

11、 Setup Guide FM wire antenna (aerial) (1) AM loop antenna (aerial) (1) Remote control (1) RM-AAU104 (US and CND models only) RM-AAU105 (Other models) R6 (size AA) batteries (2) Optimizer microphone (ECM-AC2) (ECE, UK, AUS and TW models only) (1) Design and specifi cations are subject to change witho

12、ut notice. Halogenated fl ame retardants are not used in the certain printed wiring boards. Abbreviation AUS : Australian model CND : Canadian model ECE : Continental European, East European and Russian models TW : Taiwan model RadioFans.CN 收音机爱 好者资料库 STR-DH520 3 SAFETY CHECK-OUT After correcting th

13、e original service problem, perform the following safety 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 as described below. LEAKAGE TEST The AC leakage from any expos

14、ed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return 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 RCA WT-540A. Follow

15、 the manufacturers instructions to use these instruments. 2. A battery-operated AC milliammeter. 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, s

16、o analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A) 1.5 k0.15 F AC voltmeter (0.75 V) To Exposed Metal Parts on

17、Set Earth Ground Fig. A. Using an AC voltmeter to check AC leakage. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LI

18、NE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE 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. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR

19、UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONC- TIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DON- NS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. MODEL IDENTIFICATION BACK PANEL Part No. ModelPa

20、rt No. US 4-261-825-0 CND4-261-825-1 UK, ECE, AUS4-261-825-2 TW4-261-825-6 Abbreviation AUS : Australian model CND : Canadian model ECE : Continental European, East European and Russian models TW : Taiwan model UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead- free m

21、ark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) : LEAD FREE MARK Unleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C higher than ordinary

22、 solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too l

23、ong, so be careful! Strong viscosity Unleaded solder is more viscous (sticky, less prone to fl ow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to

24、ordinary solder. NOTE OF REPLACING THE IC1500 AND IC1600 ON THE DCDC BOARD IC1500 and IC1600 on the DCDC board cannot exchange with single. When these parts on the DCDC board are damaged, exchange the entire mounted board. NOTE OF REPLACING THE IC3500 AND IC3501 ON THE HDMI RE PC BOARD IC3500 and IC

25、3501 on the HDMI RE PC board cannot exchange with single. When these parts on the HDMI RE PC board are damaged, exchange the entire mounted board. NOTE OF REPLACING THE IC2106 ON THE DIGITAL BOARD IC2106 on the DIGITAL board cannot exchange with single. When this part on the DIGITAL board is damaged

26、, exchange the entire mounted board. RadioFans.CN 收音机爱 好者资料库 STR-DH520 4 1. DISASSEMBLY 1-1. Case . 5 1-2. HDMI RE PC Board . 6 1-3. Front Panel Section . 6 1-4. Back Panel Section . 7 1-5. DIGITAL Board . 7 1-6. MAIN Board Section . 8 1-7. MAIN Board . 8 2. TEST MODE . 9 3. FM TUNER CHECK . 11 4. D

27、IAGRAMS 4-1. Block Diagram TUNER/AUDIO Section . 12 4-2. Block Diagram DIGITAL Section . 13 4-3. Block Diagram STANDBY-A VIDEO MT PC Section . 14 4-4. Block Diagram HDMI RE PC Section . 15 4-5. Block Diagram KEY/DISPLAY Section . 16 4-6. Block Diagram POWER KEY Section . 17 4-7. Printed Wiring Board

28、 MAIN Board . 19 4-8. Schematic Diagram MAIN Board (1/4) . 20 4-9. Schematic Diagram MAIN Board (2/4) . 21 4-10. Schematic Diagram MAIN Board (3/4) . 22 4-11. Schematic Diagram MAIN Board (4/4) . 23 4-12. Printed Wiring Board DIGITAL Board (Side A) . 24 4-13. Printed Wiring Board DIGITAL Board (Side

29、 B) . 25 4-14. Schematic Diagram DIGITAL Board (1/4) . 26 4-15. Schematic Diagram DIGITAL Board (2/4) . 27 4-16. Schematic Diagram DIGITAL Board (3/4) . 28 4-17. Schematic Diagram DIGITAL Board (4/4) . 29 4-18. Printed Wiring Board STANDBY-A VIDEO MT PC Board . 30 4-19. Schematic Diagram STANDBY-A V

30、IDEO MT PC Board . 31 4-20. Printed Wiring Board HDMI RE PC Board (Side A) . 32 4-21. Printed Wiring Board HDMI RE PC Board (Side B) . 33 4-22. Schematic Diagram HDMI RE PC Board (1/3) . 34 4-23. Schematic Diagram HDMI RE PC Board (2/3) . 35 4-24. Schematic Diagram HDMI RE PC Board (3/3) . 36 4-25.

31、Printed Wiring Board DCDC Board . 37 4-26. Schematic Diagram DCDC Board . 38 4-27. Printed Wiring Board HEADPHONE Board . 38 4-28. Schematic Diagram HEADPHONE Board . 38 4-29. Printed Wiring Boards PANEL Section . 39 4-30. Schematic Diagram PANEL Section . 40 4-31. Printed Wiring Board TEMP-SENSOR B

32、oard . 41 4-32. Schematic Diagram TEMP-SENSOR Board . 41 5. EXPLODED VIEWS 5-1. Case Section . 53 5-2. Front Panel Section . 54 5-3. Back Panel Section . 55 5-4. Chassis Section . 56 6. ELECTRICAL PARTS LIST . 57 TABLE OF CONTENTS STR-DH520 5 SECTION 1 DISASSEMBLY Note: This set can be disassemble a

33、ccording to the following sequence. Note: Follow the disassembly procedure in the numerical order given. 1-1. CASE 3 two screws (+BVTP 3 ? 8) 4 4 2 two screws (+BVST 4 ? 8) 5 case 1 two screws (+BVST 4 ? 8) 1-2. HDMI RE PC BOARD (Page 6) 1-3. FRONT PANEL SECTION (Page 6) 1-6. MAIN BOARD SECTION (Pag

34、e 8) 1-4. BACK PANEL SECTION (Page 7) 1-5. DIGITAL BOARD (Page 7) 1-1. CASE (Page 5) SET 1-7. MAIN BOARD (Page 8) STR-DH520 6 1-2. HDMI RE PC BOARD 1-3. FRONT PANEL SECTION 1 one screw (+BVTP 3 ? 8) 3 CN3510 (6P) 4 CN3513 (20P) 4 CN3516 (5P) 5 HDMI RE PC board 7 DCDC board 2 five screws (+B 3 ? 5) 6

35、 CN1500 (7P) 1 wire (flat type) (15 core) (CN2061) 3 CN391 (5P) 2 cushion (R) 4 five screws (+BVTP 3 ? 8) 5 claw 5 claw 6 front panel section Abbreviation AUS : Australian model ECE : Continental European, East European and Russian models STR-DH520 7 1-4. BACK PANEL SECTION 1-5. DIGITAL BOARD 1 CN25

36、01 (4P) 2 CN2114 (19P) 2 CN2105 (19P) 3 DIGITAL board Abbreviation AUS : Australian model CND : Canadian model ECE : Continental European, East European and Russian models TW : Taiwan model 1 CNP902 (2P) 2 CN906 (4P) 4 five screws (+BVTP 3 ? 8) 3 wire (flat type) (9 core) (CN2003) (US, CND) wire (fl

37、at type) (11 core) (CN2002) (UK, TW, AUS, ECE) 6 eight screws (+BVTP 3 ? 8) 7 CN271 (14P) 5 three screws (+BVTP 3 ? 8) 8 back panel section (for UK, AUS and ECE version) (for UK, TW, AUS and ECE version) STR-DH520 8 1-6. MAIN BOARD SECTION 4 one screw (+BVTP 3 ? 8) 6 two screws (+BVTP 3 ? 8) 7 main

38、board section 5 two screws (+BVTP 3 ? 8) 1 CNP920 (5P) 3 LOCK board 2 CNP930 (5P) 3 heatsink block 2 two screws (+BVTP 3 ? 8) 4 MAIN board 1 Remove the forty-two solders. 1-7. MAINBOARD Note: This illustration sees the MAIN board from back side. STR-DH520 9 SECTION 2 TEST MODE AM CHANNEL STEP 9 kHz/

39、10 kHz SELECTION MODE (US, Canadian model only) * Either the 9 kHz step or 10 kHz step can be selected for the AM channel step. * Procedure: Turn the INPUT SELECTOR control to set AM and press the ?/1 button to turn off the main power. 1. While depressing the TUNING MODE button, press the ?/1 button

40、 to turn on the main power. 2. Either the message “9K STEP” or “10K STEP” appears for a moment and select the desired step. VACUUM FLUORESCENT DISPLAY TEST MODE * All fl uorescent segments are tested. When this test is activated, all segments light on at the same time, then each segment lights on on

41、e after another. * Procedure: While depressing the TUNING + and the DIMMER buttons simultaneously, press the ?/1 button to turn on the main power. 1. ALL segments light on. LCR SLSSR SBLSBSBR LHRHSW COAXOPT HDMILFEDTS-ESNEO:6S-AIR96/24 DTS-HDMSTRHI RESLBRLPCM RDS AAC TrueHD SLEEP D.RANGEST D PL II +

42、 EX MHzft. k Hz m x z dB 2. Press the DISPLAY button, confi rm display. LCR SLSSR SBLSBSBR LHRHSW COAXOPT HDMILFEDTS-ESNEO:6S-AIR96/24 DTS-HDMSTRHI RESLBRLPCM AAC TrueHD SLEEP D.RANGE PL + ft. k m z dB 3. Press the DISPLAY button, confi rm display. LR S SBLSBR LHRHSW COAXOPT HDMILFEDTS-ESNEO:6S-AIR9

43、6/24 DTS-HDMSTRHI RESLBRLPCM RDS TrueHD SLEEP D.RANGEST D PL II EX MHz Hz x 4. Press the DISPLAY button, all segments light off. SOUND FIELD CLEAR MODE * The preset sound fi eld is cleared when this mode is activated. Use this mode before returning the product to clients upon com- pletion of repair.

44、 * Procedure: 1. While depressing the MUSIC button, press the ?/1 button to turn on the main power. 2. The message “S.F. CLEAR” appears for a moment and initial- ization is performed. SOFTWARE VERSION CHECK MODE * The software version is displayed. * Procedure: 1. While depressing the TUNING MODE and the DISPLAY buttons simultaneously, press the ?/1 button to turn on the main power. 2. The message “H5*MX.XX” appears. *: Destination 3. Each time the DISPLAY button is pressed, “H.VER X.XX” and “S.VER X.XX” appear in this order and return to the “H5*MX.XX”