Sony-STRK850P-rec-sm 电路图 维修手册.pdf

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1、STR-K850P US Model Canadian Model SERVICE MANUAL FM STEREO FM-AM RECEIVER Continued on next page SPECIFICATIONS Ver 1.0 2003. 06 Dolby Laboratories Licensing Corporation. “DOLBY” the double-D symbol ; “AC-3” and “PRO LOGIC” are trademarks of Dolby Laboratories Licensing Corporation. Sony Corporation

2、 Home Audio Company Published by Sony Engineering Corporation 9-877-410-01 2003F1678-1 2003.06 STR-K850P is the tuner and the amplifier section in HT-6600DP. POWER OUTPUT AND TOTAL HARMONIC DISTORTION: With 8 ohm loads, both channels driven, from 40 20,000 Hz; rated 110 watts per channel minimum RMS

3、 power, with no more than 0.7 % total harmonic distortion from 250 milliwatts to rated output (Models of area code U only). Amplifier section POWER OUTPUT Rated Power Output at Stereo Mode (8 ohms 40 Hz 20 kHz, THD 0.7 %) 110 W + 110 W Reference Power Output (8 ohms 1 kHz, THD 0.7 %) FRONT1):120 W/c

4、h CENTER1): 120 W SURR1): 120 W/ch 1) Depending on the sound field settings and the source, there may be no sound output. Frequency response MULTI CH IN, CD/SACD, MD/TAPE, DVD, VIDEO 1, 2 2) INPUT SHORT (with sound field and tone bypassed). 3) Weighted network, input level. 10 Hz 70 kHz +0.5/2 dB (w

5、ith sound field and tone bypassed) Sensitivity: Impedance: 75 ohms S/N: 100 dB (A, 20 kHz LPF) Sensitivity: Impedance: S/N: 100 dB (A, 20 kHz LPF) Inputs (Digital) DVD (Coaxial) VIDEO 2, CD/SACD, MD/TAPE (Optical) Outputs MD/TAPE (OUT), VIDEO 1 (AUDIO OUT) SUB WOOFER Tone Gain levels:6 dB, 1 dB step

6、 Voltage: 500 mV Impedance: 10 kilohms Voltage: 2 V Impedance: 1 kilohms Inputs (Analog) MULTI CH IN, CD/SACD, MD/TAPE, DVD, VIDEO 1, 2 Sensitivity: 500 mV Impedance: 50 kilohms S/N2): 96 dB (A, 500 mV3) Outputs (Digital) MD/TAPE (Option)Sensitivity: RadioFans.CN 收音机爱 好者资料库 2 STR-K850P Design and sp

7、ecifications are subject to change without notice. FM tuner section Tuning range87.5 - 108.0 MHz Antenna terminals75 ohms, unbalanced Intermediate Frequency 10.7 MHz Sensitivity Mono:18.3 dBf, 2.2 V/75 ohms Stereo:38.3 dBf, 22.5 V/75 ohms Usable sensitivity11.2 dBf, 1 V/75 ohms S/N Mono:76 dB Stereo

8、:70 dB Harmonic distortion at 1 kHz Mono:0.3% Stereo:0.5% Separation45 dB at 1 kHz Frequency response30 Hz 15 kHz, +0.5/2 dB Selectivity60 dB at 400 kHz AM tuner section Tuning range With 10-kHz tuning scale: 530 1710 kHz4) With 9-kHz tuning scale:531 1710 kHz4) AntennaLoop antenna Intermediate Freq

9、uency 450 kHz Usable sensitivity50 dB/m (at 1,000 kHz or 999 kHz) Harmonic distortion0.5 % (50 mV/m, 400 Hz) Selectivity At 9 kHz:35 dB At 10 kHz:40 dB 4) You can change the AM tuning scale to 9 kHz or 10 kHz. After tuning in any AM station, turn off the receiver. Hold down PRESET TUNING + and press

10、 ?/1. All preset stations will be erased when you change the tuning scale. To reset the scale to 10 kHz (or 9 kHz), repeat the procedure. Video section Inputs Video:1 Vp-p, 75 ohms 120 V AC, 60 Hz 230 W (US model) General Power requirements Power consumption Power consumption (during standby mode) 0

11、.3 W Dimensions430 157.5 308.5 mm (16 7/8 6 2/8 12 1/8 inches) including projecting parts and controls Mass (Approx.)7.6 kg (16 lb 13 oz) S-video:Y: 1 Vp-p, 75 ohms C: 0.286 Vp-p, 75 ohms Outputs Video:1 Vp-p, 75 ohms Component Video: Y:1 Vp-p, 75 ohms PB/B-Y:0.7 Vp-p, 75 ohms PR/R-Y:0.7 Vp-p, 75 oh

12、ms 315 VA (Canadian model) S/N54 dB (at 50 mV/m) RadioFans.CN 收音机爱 好者资料库 3 STR-K850P SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS W

13、HOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. After correcting the original service problem, perform the following safety checks before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other expose

14、d 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 a return to chassis, must not exceed 0.5 mA (500 microamperes). Leakage current can be measured by any

15、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. The Data Precision 245 digital multimeter is suitable for this job. 3.Measuring the voltage drop across a

16、 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 examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V

17、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 check AC leakage. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalu

18、m capacitor may be damaged by heat. Unleaded solder Boards requiring use of unleaded solder are printed with the lead- free mark (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

19、MARK Unleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40C higher than ordinary 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

20、should be set to about 350C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! Strong viscosity Unleaded solder is more viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on

21、 IC pins, etc. Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POU

22、R LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PISES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPMENTS PUBLIS PAR SONY. RadioFans.CN 收音机爱 好者资料库 4 STR-K850P TABLE OF CONTENTS 1. GENERAL5 2. TEST MODE6 3. DIAGRAMS 3-1.Circuit Board Location 7 3-2.Block Diagra

23、ms MAIN Section 8 DIGITAL/POWER Section 9 3-3.Printed Wiring Board DIGITAL Board (SIDE A) 10 3-4.Printed Wiring Board DIGITAL Board (SIDE B) 11 3-5.Schematic Diagram DIGITAL Section (1/2) 12 3-6.Schematic Diagram DIGITAL Section (2/2) 13 3-7.Printed Wiring Board MAIN Section 14 3-8.Schematic Diagram

24、 MAIN Section (1/3) 15 3-9.Schematic Diagram MAIN Section (2/3) 16 3-10. Schematic Diagram MAIN Section (3/3) 17 3-11. Printed Wiring Board POWER Section 18 3-12. Printed Wiring Board FRONT Section 19 3-13. Schematic Diagram FRONT Section 20 3-14. Printed Wiring Board VIDEO Section 21 3-15. Schemati

25、c Diagram VIDEO Section 22 3-16. IC Block Diagrams 23 3-17. IC Pin Function Descriptions 25 4. EXPLODED VIEWS 4-1. Front Panel Section 27 4-2. Chassis Section 28 5. ELECTRICAL PARTS LIST 29 MODEL IDENTIFICATION BACK PANEL Part No. Model US model Canadian model Parts No. 4-244-312-0 4-244-312-1 5 STR

26、-K850P SECTION 1 GENERALThis section is extracted from instruction manual. ?/1 g qj qh qgqfqkqlw;wawswdwjwkwlwhwfwg 1 2 359 06qa qsqd748 MD/TAPE 9 (22) MEMORY wj (31) MOVIE (button/indicator) ws (25, 44) MULTI CHANNEL DECODING (indicator) ql (22) MULTI CH IN w; (22) MUSIC (button/indicator) wa (25,

27、26, 44) P Z PHONES (jack) wl (23, 27, 44) PRESET TUNING +/ wg (31, 32 47) SPEAKERS (OFF/A/B/A+B) 2 (14, 23, 44) TUNER FM/AM qa (22, 31, 32, 33) TUNING +/ wh (30, 31) VIDEO 1 6 (22) VIDEO 2 7 (22) NUMBERS AND SYMBOLS 2CH (button/indicator) wf (24, 26, 29) ?/1 (power) 1 (16, 21, 29, 35, 47) qk (17, 28

28、, 29, 33, 35, 49) ALPHABETICAL ORDER A H A.F.D. (button/indicator) wd (2426) CD/SACD q; (22) DIMMER 4 (23) DISPLAY 3 (23, 45) Display qs (23) DVD 8 (22) ENTER qh (33, 35) FM MODE wk (30) I O INPUT MODE qf (22) IR (receptor) 5 (36, 45) Jog dial qj (17, 28, 29, 33, 35, 49) MAIN MENU qg (17, 28, 29, 33

29、, 35, 49) MASTER VOLUME qd (20, 22, 44) 6 STR-K850P SECTION 2 TEST MODE FACTORY PRESET MODE * All preset contents are reset to the default setting. * Procedure: While depressing the FM MODE and the PRESET TUNING buttons simultaneously, press the ?/1 button again. The message “FACTORY” appears and th

30、e present contents are reset to the default values. 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. * Procedure: Set the FUNCTION to AM. Turn off the main power. While depressing the TUNING+ button or the PRESET TUNING + but

31、ton, press the ?/1 button to turn on the main power. Either the message “9 k STEP” or “10 k STEP” appears. Select the desired step. SPEAKER SIZE SELECTION MODE *Either Normal Speaker or Micro Satellite Speaker can be selected. *Procedure: While depressing the MAIN MENU button, press the ?/1 button t

32、o turn the main power. Either the message “NORM. SP.” or “MICRO SP.” is displayed. Select the desired speaker size. 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 ano

33、ther. * Procedure: While depressing the FM MODE and the MD/TAPE buttons simultaneously, press the ?/1 button to turn on the main power. 1.All segments turn on. 2CH , A. F. D , MOVIE , MUSIC and MULTI CHANNEL DECODING LED turn on. 2.Press the VIDEO 1 button, confirm display. 2CH and MOVIE LED turn on

34、. 3.Press the VIDEO 1 button, confirm display A. F. D , MUSIC and MULTI CHANNEL DECODING LED turn on. SW L SL CR SSB SR SLEEP L F E DIGITALEX OPTCOAX MULTI CH IN 12 PROLOGIC IIDTS-ESNEO : 6SPBSPASPMPEG-2 AAC STEREO MONORDS MEMORY EQD.RANGE DDDD dB kHz mft. MHz 4.Press the VIDEO1 button, All segments

35、 and all LEDS turn off. 5.Every pressing of the VIDEO1 button turns on each segment and LED one after another in the same order. (Not only the VIDEO1 button, but also the other buttons such as VIDEO2 , DVD , MD/TAPE , CD and TUNER FM/AM can be used.) SOUND FIELD CLEAR MODE * The preset sound field i

36、s cleared when this mode is activated. Use this mode before returning the product to clients upon completion of repair. * Procedure: While depressing the 2CH button, press the ?/1 button to turn on the main power. The message “SF. CLR.” appears and initialization is performed. SOFTWARE VERSION DISPL

37、AY MODE * The software version is displayed. * Procedure: While depressing the FM MODE and the DVD buttons simultaneously, press the ?/1 button to turn on the main power. The model name, destination and the software version are displayed. KEY CHECK MODE * Button check * Procedure: While depressing t

38、he MUSIC and the TUNING buttons simultaneously, press the power ?/1 button to turn on the main power. “REST 25” 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” appea

39、rs. COMMAND MODE SELECTION MODE * The command mode (AV1 or AV2) of the remote commander can be selected. * Procedure: 1.While depressing the ENTER button, press the ?/1 button to turn on the main power. 2.The message “C.MODE.AV 1” or “C.MODE.AV 2” appears for a moment. Select the desired mode. SW C

40、SSB SLEEP L F E DIGITAL OPTMULTI CH IN 2 PROLOGICDTSSPMPEGAAC STEREORDS DDDD MHz k m L SL R SR EX COAX1 II-ES NEO : 6SPBSPA-2 MONO MEMORY EQD.RANGE dB Hz ft. 77 STR-K850P Waveforms DIGITAL Board For schematic diagrams. Note: All capacitors are in F unless otherwise noted. p : pF. 50 WV or less are n

41、ot indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. %: indicates tolerance. f: internal component. 2 : nonflammable resistor. 5 : fusible resistor. C : panel designation. A : B+ Line. B : B Line. Voltages and waveforms are dc with r

42、espect to 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 produc- tion tolerances. Waveforms are taken with a oscilloscope. Circled numbers refer to waveforms. Signal path. F: FM J: CD (ANAL

43、OG) c: DVD (DIGITAL) Abbreviation CND : Canadian model THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this necessary note is printed in each block.) Caution: Pattern face side:Parts on the pattern face side seen from (Side A)the pattern face are indicated. Part

44、s face side:Parts on the parts face side seen from (Side B)the parts face are indicated. For printed wiring boards. Note: X : parts extracted from the component side. a: Through hole. f: internal component. : Pattern from the side which enables seeing. C B These are omitted. E Q B These are omitted.

45、 CE 1 IC1101 wa (XOUT) 4.3Vp-p 1V/DIV, 40ns/DIV 81.4ns (12.288MHz) 2 IC1201 9 (MCLK1) 3.4Vp-p 73.6ns (13.59MHz) 1V/DIV, 40ns/DIV 3 IC1601 id (XI) 3.5Vp-p 62.5ns (16MHz) 1V/DIV, 40ns/DIV SECTION 3 DIAGRAMS 3-1. Circuit Board Location Note: The components identi- fied by mark 0 or dotted line with mar

46、k 0 are criti- cal for safety. Replace only with part number specified. Note: Les composants identifis par une marque 0 sont critiques pour la scurit. Ne les remplacer que par une pice portant le numro spcifi. MAIN board BRIDGEABLE board DISPLAY board HEADPHONE board STANDBY board VIDEO board S-VIDE

47、O board DIGITAL board VOLUME board POWER board 88 STR-K850P 3-2.Block Diagrams MAIN Section Signal Path : FM : CD(ANALOG INPUT) : DVD (DIGITAL INPUT) R-CH is omitted due to same as L-CH. AUDIO IN AUDIO IN AUDIO IN PROCESSOR INL380 RECL260 INL478 INL674 RECL158 INL772 54L OUT INL576 41SL OUT 36C OUT

48、35SW OUT MUTING Q361 MUTING Q365 MUTING Q363 MUTING Q364 15 CLK SDA SCL 14 DATA SYSTEM CONTROL IC1601(2/3) J404 DVD IN VIDEO 2 IN J1101 3562 IC1102 DIGITAL AUDIO I/F RECEIVER IC1101 SEELCTOR IC1103 L DIN25 DO35 DI36 CLK38 CE37 ERROR34 XSTATE17 XMODE48 13CK OUT 14BCK 15LRCK 16DATAO IC1102 X1101 12.28

49、8MHz AUDIO DSP IC1201 KFSI022 SDI230 HCLK34 HCS36 HACN32 PM113 BST56 XRST2 23SDO1 24SDO2 25SDO3 BCKI229 LRCKI228 IC1202 SRAM AUDIO CODEC IC1501 MCLKI39 CDT143 CCLK42 CS41 PD17 S.MUTE3 27L OUT1 BCLK4 LRCK5 SDTO9 SDTI16 SDTI27 SDTI38 25L OUT2 23L OUT3 24R OUT3 LIN+30 LIN-29 21 IC1502 67 IC1502 ANALOG SOUND SL BAL L+14 LIN220 23 24 25 SL C SW SLIN2 CIN2 SWIN2 A 98 97 95 96 99 100941 DO DI CLK CE ERROR XSTATE CKSEL1 DATA0 20 HCLK 4 HCS 5 HACN 7 PM 3 BST 6 XRST 10 CDT1 12 SCL 13 CS 8