Sony-STRK402-rec-sm 电路图 维修手册.pdf

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1、STR-K402 US ModelSERVICE MANUAL FM STEREO FM-AM RECEIVER Continued on next page SPECIFICATIONS Ver 1.0 2001. 04 Manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” the double-D symbol ; “AC-3” and “Pro Logic” are trademarks of Dolby Laboratories Licensing Corporation. O

2、utputsMD/TAPE (OUT): VIDEO (AUDIO OUT): Voltages: 250 mV, Impedance: 10 kilohms SUB WOOFER: Voltage: 2 V Impedance : 1 kilohms PHONES: Accepts low and high-impedance headphones TONE6 dB at 100 Hz and 10 kHz Sampling frequency 48 kHz (OPTICAL IN) 96 kHz (COAXIAL IN) FM tuner section Tuning range87.5

3、- 108.0 MHz Antenna terminals 75 ohms, unbalanced Intermediate frequency10.7 MHz SensitivityMono: 18.3 dBf, 2.2 V/75 ohms Stereo: 38.3 dBf, 22.5 V/75 ohms Usable sensitivity 11.2 dBf, 1 V/75 ohms S/NMono: 76 dB Stereo: 70 dB Harmonic distortion at 1 kHz Mono: 0.3% Stereo: 0.5% Separation45 dB at 1 k

4、Hz Frequency response 30 Hz - 15 kHz +0.5/-2 dB Selectivity60 dB at 400 kHz AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC DISTORTION: With 8 ohm loads, both channels driven, from 40 - 20,000 Hz; rated 80 watts per channel minimum RMS power, with no more than 0.09% total harmonic distort

5、ion from 250 milliwatts to rated output Amplifier section POWER OUTPUT Rated Power Output at Stereo mode (8 ohms 40 Hz - 20 kHz, THD 0.09%) 80 W + 80 W Reference Power Output (8 ohms 1 kHz, THD 0.7%) Front1): 80 W/ch Center1): 80 W Surround1): 80 W/ch 1) Depending on the sound field settings and the

6、 sources, there may be no sound output. Frequency response MULTI CH IN, CD, MD/TAPE, DVD/LD, TV/SAT, VIDEO: 20 Hz 20 kHz 0/ 0.5 dB (sound field, and tone bypassed) Inputs (Analog) MULTI CH IN, CD, MD/TAPE, DVD/LD, TV/SAT, VIDEO: Sensitivity: 250 mV Impedance: 50 kilohms S/N2): 85 dB (A, 250 mV3) 2)

7、INPUT SHORT 3) Weighted network, input level Inputs (Digital) DVD/LD (coaxial): Sensitivity: Impedance: 75 ohms S/N: 100 dB (A, 20 kHz LPF) TV/SAT (Optical): Sensitivity: Impedance: S/N: 100 dB (A, 20 kHz LPF) Sony Corporation Home Audio Company Shinagawa Tec Service Manual Production Group 9-873-89

8、5-11 2001D1600-1 2001.4 RadioFans.CN 收音机爱 好者资料库 2 STR-K402 MODEL IDENTIFICATION BACK PANEL AM tuner section Tuning range With 10-kHz tuning scale: 530 - 1710 kHz4) With 9-kHz tuning scale: 531 - 1710 kHz4) AntennaLoop antenna Intermediate 450 kHz frequency Usable sensitivity 50 dB/m (at 1,000 kHz or

9、 999 kHz) S/N54 dB (at 50mV/m) Harmonic distortion 0.5% (50mV/m, 400 kHz) Selectivity:At 9 kHz: 35 dB At 10 kHz: 40 dB 4) You can change the AM tuning scale to 9 kHz 10 kHz. After tuning in any AM station, turn off the receiver. Hold down the TUNING + button and press the button. All preset stations

10、 will be erased when you change the tuning scale. To reset the scale to 10 kHz (or 9 kHz), repeat the procedure. Video section InputsVideo: 1 Vp-p 75 ohms OutputsVideo: 1 Vp-p 75 ohms General SystemTuner section: PLL quartz-locked digital synthesizer system Preamplifier section: Low-noise NF type eq

11、ualizer Power amplifier section: Pure-complementary SEPP Power requirements 120 V AC, 60 Hz Power consumption 185 W In Standby Condition: 1 W Dimensions 430 145 298 mm (17 7 7/8 195/8 in.) including projecting parts and controls Mass (Approx.) 7.2 kg (15 lb 14 oz) Supplied accessories Design and spe

12、cifications are subject to change without notice. FM wire antenna (1) AM loop antenna (1) R6 (size-AA) batteries (2) Remote Commander (remote) (1) Parts No. MODELPARTS No. US4-235-014-0s RadioFans.CN 收音机爱 好者资料库 3 STR-K402 SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LI

13、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. After correcting the original service problem, perform the following safety c

14、hecks 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 The AC leakage from any exposed metal part to earth ground and from all exposed metal parts

15、 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 the manufacturers instructions to use these instruments. 2.A ba

16、ttery-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, so analog meters must have an accurate low-voltage scale. The Simps

17、on 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A) SAFETY CHECK-OUT To Exposed Metal Parts on Set 0.15 F 1.5 k AC Voltmeter (0.75 V) Earth Ground Fig. A. Using an AC voltmeter to

18、 check AC leakage. TABLE OF CONTENTS 1. GENERAL 4 2. TEST MODE 6 3. DIAGRAMS 3-1.Circuit Boards Location 8 3-2.Block Diagram Main Section 9 3-3.Block Diagram Display Section 10 3-4.Schematic Diagram Main Section (1/3) 11 3-5.Schematic Diagram Main Section (2/3) 12 3-6.Schematic Diagram Main Section

19、(3/3) 13 3-7.Printed Wiring Board Main Section 14 3-8.Schematic Diagram Digital Section 15 3-9.Printed Wiring Board Digital Section 16 3-10. Schematic Diagram Display Section 17 3-11. Printed Wiring Board Display Section 18 3-12. Schematic Diagram Video Section 19 3-13. Printed Wiring Board Power Se

20、ction 19 3-14. Printed Wiring Board Video Section 19 3-15. IC Block Diagrams 20 3-16. IC Pin Function Description 21 4. EXPLODED VIEWS 23 4-1.Front Panel Section 23 4-2.Chassis Section 24 5. ELECTRICAL PARTS LIST 25 RadioFans.CN 收音机爱 好者资料库 4 STR-K402 SECTION 1 GENERAL This section is extracted from

21、instruction manual. 5 STR-K402 6 STR-K402 SECTION 2 TEST MODE SOFTWARE VERSION DISPLAY MODE * The software version is displayed. * Procedure: While depressing the TUNER and the VIDEO buttons simultaneously, press the power ?/1 button to turn on the main power. The model name, destination and the sof

22、tware version are displayed. FLUORESCENT INDICATOR TUBE TEST MODE * All fluorescent segments are tested. When this test is activated, all segments turn on at the same time, then each segment turns on one after another. * Procedure: While depressing the TV/SAT and the DVD/LD buttons simultaneously, p

23、ress the power ?/1 button to turn on the main power. 1.All segments turn on. NAME , SURR and SOUND FIELD MODE LED turn on. 2.Press the VIDEO button, confirm display Digital Cinema Sound, SET UP and 2CH LED turn on. 3.Press the VIDEO button, confirm display MULTI CHANNEL DECODING(blue), LEVEL and A.F

24、.D. LED turn on. 4.Press the VIDEO button, All segments turn off. 5.Every pressing of the VIDEO button turns on each segment and LED one after another in the same order. (Not only the VIDEO button, but also the other buttons such as DVD/LD , TV/SAT , MD/TAPE , CD , TUNER can be used.) FACTORY SET MO

25、DE * All preset contents are reset to the default setting. * Procedure: While depressing the VIDEO and the CD buttons simultaneously, press the power ?/1 button to turn on the main power. The message FACTORY appears and switch off the set. While depressing the VIDEO and the CD buttons simultaneously

26、, press the power ?/1 button again. The message FACTORY appears and the present contents are reset to the default values. SOUND FIELD CLEAR MODE * The preset sound field is cleared when this mode is activated. Use this mode before returning the product to clients upon completion of repair. * Procedu

27、re: While depressing the SOUND FIELD MODE button, press the power ?/1 button to turn on the main power. The message S. F. CLR appears and initialization is performed. AM CHANNEL STEP 9 kHz/10 kHz SELECTION MODE * Either the 9 kHz step or 10 kHz step can be selected for the AM channel step. * Procedu

28、re: Set the FUNCTION to AM. Turn off the main power. While depressing the TUNING+ button or the PRESET TUNING+ button, press the power ?/1 button to turn on the main power. Either the message 9 k STEP or 10 k STEP appears. Select the desired step. KEY CHECK MODE * Button check * Procedure: While dep

29、ressing the SURR and the A.F.D buttons simultaneously, press the power ?/1 button to turn on the main power. “REST 36” appears. Every pressing of any button other than ?/1 counts down the buttons. The buttons which are already counted once are not counted again. When all buttons are pressed “REST 00

30、” appears. When MASTER VOLUME is rotated in clockwise direction, “VOL MIN”, “VOL 1” to “VOL 30”, “VOL MAX” appear. SW L SL CR SSR SLEEP SP.OFF ( ( ( L F E ) ) ) DIGITAL OPTCOAX MULTI CH IN PRO LOGICDTS MPEGSTEREOMONORDSMEMORY MUTINGINFONEWSTAEQD.RANGE DD dB kHz mft. MHz SW LR S SLEEP L F E COAX PRO

31、LOGICMPEGSTEREORDS MUTINGINFOTAD.RANGE DD k m MHz SL C SR SP.OFF ( ( ( ) ) ) DIGITAL OPTMULTI CH IN DTSMONOMEMORY NEWSEQ dB Hz ft. 7 STR-K402 SECTION 3 DIAGRAMS For schematic diagrams. Note: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytic

32、s and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. %: indicates tolerance. f: internal component. 2 : nonflammable resistor. 1 : fusible resistor. C : panel designation. A : B+ Line. B : B Line. H : adjustment for repair. Voltages and waveforms are dc with respect to

33、 ground under no-signal (detuned) conditions. No mark : FM Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Circled numbers refer to waveforms. Signal path. F: FM f: CD THIS NOTE IS COM

34、MON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this necessary note is printed in each block.) Waveform DISPLAY BOARD DIGITAL BOARD C B These are omitted. E Q B These are omitted. CE 1 IC102 id 5.8Vp-p 63ns 2 IC1005 7 5.8Vp-p 81ns For printed wiring boards. Note: X : parts extr

35、acted from the component side. a: Through hole. f: internal component. b : Pattern from the side which enables seeing. The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. 8 STR-K402 3-1. CIRCUIT BOARDS LOCATION STANDBY boar

36、d POWER SW board HP board DISPLAY boardMAIN board VIDEO board DIGITAL board 99 STR-K402 3-2. BLOCK DIAGRAM MAIN SECTION TUNER UNIT Signal Path R-CH is omitted due to same as L-CH. : FM : CD FM AM R-CH S DATA PLL DATA S CLK S LAT STEREO AUTO STOP S DATA DATA OUT S CLK S LAT STEREO TUNED T MUTING T MU

37、TING FM AM R OUT L OUT CD IN MD/TAPE OUT DVD/LD AUDIO IN VIDEO AUDIO OUT VIDEO AUDIO IN FRONT SURROUND CENTER SUB WOOFER J501 PROC. IC201 IN G263 IN B270 REC OUT 2A61 IN C269 IN E267 REC OUT 2B62 49L OUT IN D268 43SL OUT 37C OUT 28SW CH OUT MUTING Q361 DATA32 CLOCK31 LATCH33 DATA CLOCK S CE MUTING Q

38、362 MUTING Q363 MUTING Q364 J1004 J1006 VIDEO VIDEO IN MONITOR VIDEO OUT MOUT10 V112 OUT5 V23 V31 2S1 13S2 4M2 11M1 VIDEO SELECT IC1015 66 AUTO STOP S175 S276 VIDEO MUTING74 6567 STEREO 62 TUNER DATA IN 60 TUNER DATA OUT 61 TUNER CLK 59 TUNER LAT 79 M CLK 80 M CE 78 M DATA AUTO STOP T MUTING T MUTIN

39、G STEREO DATA S DATA S CLK S LAT CLOCK S CE DATA SYSTEM CONTROL IC102(1/2) TV/SAT AUDIO IN J401 J402 MD/TAPE IN J403 31 IC401(1/2) DIGITAL DVD/LD IN J1001 IR LINK DET IC1002 DIGITAL TV/SAT IN 3562 IC1003 DIGITAL AUDIO I/F RECEIVER IC1004 L DIN03 DIN14 DO35 DI36 CLK38 CE37 ERROR34 XSTATE17 XMODE48 12

40、.288M22 DIR DO DIR DI DIR CLK DIR CE DIR ERROR DIR XSTATE DIR MODE 13MCLK 14BCK 15LRCK 16DATAO IC1003 17 IC1005 X1101 12.288MHz 62 IC1005 AUDIO DSP IC1006 SDIA185 SDIA084 SO67 SI68 SCK69 CS66 CSB65 IC62 XI8 DSP SO 47SBOB0 46SBOB1 45SBOB2 SDBCK083 SDWCK082 DSP SI DSP CLK DSP CS DSP CSB DSP IC 35 IC10

41、05 IC1007 SRAM AUDIO CODEC IC1008 MCLK39 CDT143 CCLK42 DIF0/CSN41 DFS11 PDN17 SMUTE3 CODEC CDT1 27L OUT1 BCK4 LRCK5 SDTO9 SDTI16 SDTI27 SDTI38 CODEC CLK CODEC CS CODEC DFS CODEC MUTING CODEC PD 57 IC402 3L OUT2 31 IC403 23L OUT3 31 IC404 24R OUT3 57 IC404 LIN+30 LIN-29 21 IC1201 67 IC1201 ANALOG SOU

42、ND IN F266 SW CH N IN27 SL 50 44 38 SEL OUT260 TIN258 45 39 26 L CH N IN SL CH N IN C CH N IN SL C SW DOUT259 SL CH D IN C CH D IN SW CH D IN A 89 VIDEO VIDEO OUT DVD/LD VIDEO IN TV/SAT VIDEO IN -5V REG 32-5V IC1014 -12V 90 92 91 95 96 9394 DIR DO DIR D1 DIR CLK DIR CE DIR ERR DIR XSTATE DIR XMODE D

43、IR DATA0 24 DSP SO DIR DO DIR D1 DIR CLK DIR CE DIR ERR DIR XSTATE DIR XMODE 22 DSP SI 21 DSP CLK 25 DSP CS 99 DSP CSB 100 DSP IC 69 CODEC CDT1 DSP SO DSP SI DSP CLK DSP CS DSP CSB DSP IC 68 CODEC CLK 73 CODEC CS 70 CODEC DFS 71 CODEC PD 72 CODEC MUTING 98 ANA/DIG CODEC CDT1 CODEC CLK CODEC CS CODEC

44、 DFS CODEC PD CODEC MUTING MUTING CONT Q103,104 88 SYSTEM MUTING MUTING SWITCH Q379 49MD0 50MD1 51MD2 19FLASH 1 20FLASH 2 MD0 VDD MD2 FLASH 1 FLASH 2 RESET +5.6V CNS105 FOR FRASH PROGRAMMING B +5V REG 31+5V IC1009 +9.2V +5V REG 31+5V IC1011 +5V REG 31+5V IC1013 +3.3V REG 31+3.3V IC1010 MULTI CH IN A

45、NTENNA 1010 STR-K402 3-3. BLOCK DIAGRAM DISPLAY SECTION RESET Q100,101 Q659 Signal Path R-CH is omitted due to same as L-CH. : FM IN28 12+V OUT2 POWER AMP IC701 9NF2 LIMITER Q701 11-V OUT2 LIMITER Q702 BOOSTER Q703 BOOSTER Q704 CURRENT DETECT Q705,706 OVER LOAD DETECT Q708,709 IN16 2+V OUT1 5NF1 LIM

46、ITER Q651 3-V OUT1 LIMITER Q652 BOOSTER Q653 BOOSTER Q654 CURRENT DETECT Q655,656 IN+1 6+V OUT POWER AMP IC501 2IN- LIMITER Q501 5-V OUT LIMITER Q502 BOOSTER Q503 BOOSTER Q504 CURRENT DETECT Q505,506 OVER LOAD DETECT Q507,509 OVER LOAD DETECT Q657,658 Q707 D706 D606 D506 D721 PROTECT SWITCH Q722,723

47、,725 RELAY DRIVE Q791 RY791 RELAY DRIVE Q730 RY730 D731 RELAY DRIVE Q610 RY601 D735 RELAY DRIVE Q550 RY550 D734 IC401(2/2) 57 RELAY DRIVE Q560 RY560 D736 L R SR SL C R-CH R-CH R-CH SPEAKERS FRONT PHONES SPEAKERS SURROUND SPEAKERS CENTER TM601 TM602 J253 58 PROTECT 15 H/P RY 10 SP A RY 14 REAR RY 12

48、CTR RY 13 WOOFER RY LED DRIVE Q008 RV102 VOL ENCODER MASTER VOLUME 13 VOL A 1 VOL B 2 PW KEY IN 56 S150 77RESET 47STOP 57SIRCS REMOTE CONTROL RECEIVER 21 IC101 POWER CONTROL IC950 58 3 6 +5.6V REG Q951 D110 D109 D910-913 AC IN T902 F901 RY901 D915D914 RELAY DRIVE Q901 D820-823 84VCC 23VCC -7V REG 32

49、 +7V REG 31 +5V REG 31 +5V REG 31 +5V REG 31 AUDIO +5V LED +5V AUDIO +7V AUDIO -7V TUNER,RDS VIDEO +5V IC807 IC803 IC804 IC801 IC802 POWER RY 8 RELAY +B +12V REG 31 TUNER +12V IC806 -30V REG Q801 FL201 -30V -B SW Q691 POWER AMP -B D898 D802 T901 POWER AMP +B 8283 X0 X1 X101 16MHz FL1 FL2 L SLSL C SW A VCC13 VCC14 +B9 POWER MUTING Q747,748 29 AC MUTING J791 FLUORESCENT INDICATOR TUBE FL101 16 FL DAT 17 FL CLK 18 FL LAT 7 DIN 8 CLK 9 STB 14 29 SEG1-16 42 31 GRID1-12 FL1FL2 2LEVEL LED 3NAME LED 1SUR LED