Sony-STRK675P-rec-sm 电路图 维修手册.pdf

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1、SERVICE MANUAL Sony Corporation Audio Group Published by Sony Engineering Corporation US Model FM STEREO FM-AM RECEIVER 9-879-446-01 2005C1678-1 2005.03 Ver. 1.0 2005.03 SPECIFICATIONS STR-K675P STR-K675P is the tuner and the amplifier section in HT-DDW675. Manufactured under license from Dolby Labo

2、ratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories. “DTS” and “DTS Digital Surround” are registered trademarks of Digital Theater Systems, Inc. AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC DISTORTION: (Models of area code US only) With 6 ohm loa

3、ds, both channels driven, from 120 20,000 Hz; rated 70 watts per channel minimum RMS power, with no more than 0.7% total harmonic distortion from 250 milliwatts to rated output. Amplifier section Power Output1) (6 ohms 1 kHz, THD 10%) FRONT2): 110 W/ch CENTER2): 110 W SURR2): 110 W/ch FM tuner secti

4、on Tuning range87.5 - 108.0 MHz AntennaFM wire antenna Antenna terminals75 ohms, unbalanced Intermediate frequency10.7 MHz AM tuner section Tuning range With 10-kHz tuning scale: 530 - 1,710 kHz3) With 9-kHz tuning scale: 531 - 1,710 kHz3) AntennaLoop antenna Intermediate frequency450 kHz 3) You can

5、 change the AM tuning scale to 9 kHz or 10 kHz. After tuning in any AM station, turn off the receiver. While holding down PRESET TUNING + or TUNING +, press ?/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. 1) Mea

6、sured under the following conditions: 2) Depending on the sound field settings and the source, there may be no sound output. Inputs (Analog) Inputs (Digital) Output (Analog) Reproduction frequency range: 28 20,000 Hz Tone 120 V AC, 60 Hz SA-CD/CD, DVD VIDEO 1, 2 Sensitivity: 800 mV Impedance: 50 k o

7、hms DVD (Coaxial)Sensitivity: Impedance: 75 ohms SA-CD/CD (Optical)Sensitivity: Impedance: SUB WOOFERVoltage: 2 V Impedance: 1 k ohm Gain levels6 dB, 1 dB step General Power requirements120 V AC, 60 Hz Power consumption Power consumption (during standby mode) 0.2 W Dimensions (w/h/d) (Approx.) 430 1

8、45 301.5 mm (17 5 6/8 11 7/8 inches) including projecting parts and controls Mass (Approx.)6.5 kg (14 lb 6 oz) 170 W Design and specifications are subject to change without notice RadioFans.CN 收音机爱 好者资料库 2 STR-K675P TABLE OF CONTENTS 1.GENERAL.3 2.TEST MODE.7 3.DIAGRAMS 3-1.Block Diagram MAIN Sectio

9、n . 10 3-2.Block Diagram DISPLAY/POWER Section . 11 3-3.Printed Wiring Board DIGITAL Board (Side A) . 12 3-4.Printed Wiring Board DIGITAL Board (Side B) . 13 3-5.Schematic Diagram DIGITAL Board (1/4) . 14 3-6.Schematic Diagram DIGITAL Board (2/4) . 15 3-7.Schematic Diagram DIGITAL Board (3/4) . 16 3

10、-8.Schematic Diagram DIGITAL Board (4/4) . 17 3-9.Printed Wiring Board MAIN Section . 18 3-10. Schematic Diagram MAIN Section (1/3) . 19 3-11. Schematic Diagram MAIN Section (2/3) . 20 3-12. Schematic Diagram MAIN Section (3/3) . 21 3-13. Printed Wiring Board STANDBY Section . 22 3-14. Printed Wirin

11、g Board DISPLAY Section . 23 3-15. Schematic Diagram DISPLAY Section . 24 3-16. Printed Wiring Board VIDEO Board . 25 3-17. Schematic Diagram VIDEO Board . 26 4.EXPLODED VIEWS 4-1.Front Panel Section . 34 4-2.Chassis Section. 35 5.ELECTRICAL PARTS LIST. 36 SAFETY CHECK-OUT After correcting the origi

12、nal 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 exposed meta

13、l 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 the man

14、ufacturers 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, so analog m

15、eters 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) Fig. A.Using an AC voltmeter to check AC leakage. 1.5 k0.15 F AC voltm

16、eter (0.75 V) To Exposed Metal Parts on Set Earth Ground 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. UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead- free m

17、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

18、 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

19、ong, so be careful! Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) 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

20、ordinary solder. 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 WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS P

21、UBLISHED BY SONY. RadioFans.CN 收音机爱 好者资料库 3 STR-K675P SECTION 1 GENERAL This section is extracted from instruction manual. Main unit ?9? ?qh? ?3? ?2? ?5? ?ql? ? !?7? ?qj? ?wg? ? ?#!?qd? ?$%? ?-.?8?3? ?/1?(4%$?1?3? 5+6?qf?)? ,+*?qg?)? ? ? ? ? 642 31 qhqjqkqlw;waqdqfqs 578 9qaq; qgwswdwhwgwf RadioFans

22、.CN 收音机爱 好者资料库 4 STR-K675P Inserting batteries into the remote ?7?%$?8%2?9?%$?%?4?:?:%?,?7;?* ?$(?%$?($?%7%;?7?:%?9?%$?%$?7($?;?A($? ?9(?(7:?=:%7?:%?$%(%?7(?(7?%$?(?%$?%? :%?$%?(7%? B ?(?7(?%C?(?%?:%?$%7?:?($? ?:?7?$?%?(?7?(?%? 7(7D?%?:%?$%(%?A($?7?%C%7;%;?%$?(;?(A? ?%?$%(%?:%?9?%$?%?(?(?;?(?9?%?;?%

23、? A$(7?:?%?(?#?%?:%?(?$%A%$%7? (:%$?;?(+?;%(? wa ef ed es ea e; wl wk wj wh wg wf wd ws * * * * * * 5 STR-K675P !:%?9?%?9%?(4?:(4?:%?%?7?(A?%?%?7? ;?(?(7;? ?ea?%? ? !?e;? ? ? ? ? ?%?%?(? ?%C?($?G?7? ?/1? 1 ?-?+ -?+ ? ? !$7?:%?;?(?7;? ?;%(? ? ? ? ? ? (;%? ?%?%?($?(7?(%? ?ed?%(?%$? ?(;%? ? ? ? ?!? ? !

24、?qa!?+? ? ?+ ? ?7%$?:%?%?%? ? ? ? #?ql ?%/?:%?%?(A?:%? $%?A?%?;? ?#!? 1?qh?%?A$(? :%?$%?+ ? ? ? ?%?%? 6 STR-K675P Notes B !:%?9(%?%C?7?(7?7%7;%;?(?%$%?7? %C?%?(7?!:%$%A($%?;%?%7;?7?(7?:%? %?(A?:%?!? 4?7?7?:?%?(A?:%?!? ? ? ? ?!? ?!? ?!? ?G? ?$%? ?/1?1?7;? ?/1?2? :%?%? ?$7?(AA?:%?$%?(:%$?(7?;?(+ ?;%(?

25、(? ?$(?$? !? #? wf ? ? ? ?7?F? !?7?($?;%(? ?7? !? ,+*?wd !?;/?:%?(?$7?:%?!?(7?($? (AA? ?ed?%? ?3?%?4?:? ?!# ? 1?A($?;?$%?($?9? ;?$%?($? $%4?7;? H?wh? ? ?+ -?+ ? ? ?$?9?7?(?$? $%?7?4?:? ?7?7;9? x?qg? ? ?+ -?+ ? ? ?(?9?&0? V+v?wf?%&%?%$?%?%&?%?($?&:?7?%? :%?%?7? V+v+B+b?wf? ? ?+ ? ? ?%?%&?%? 7 STR-K67

26、5P SECTION 2 TEST MODE FACTORY PRESET MODE All preset contents are reset to the default setting. Procedure: While depressing the PRESET TUNING and the DIMMER buttons simultaneously, press the power ?/1 button to turn on the main power. The message “FACTORY” appears and the present contents are reset

27、 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+ button, press the power ?/1 button t

28、o turn on the main power. Either the message “9 k STEP” or “10 k STEP” appears. Select the desired step. This mode is only for US, Canadian, Australian and E models. FLUORESCENT INDICATOR TUBE TEST MODE All fluorescent segments are tested. When this test is activated, all segments turn on at the sam

29、e time, then each segment turns on one after another. Procedure: While depressing the PRESET TUNING and the AM buttons simultaneously, press the power ?/1 button to turn on the main power. 1.All segments turn on. 2.Press the VIDEO 1 button, confirm display. 3.Press the VIDEO 1 button, confirm displa

30、y 4.Press the VIDEO 1 button, All segments turn off. 5.Every pressing of the VIDEO 1 button turns on each segment one after another in the same order. (Not only the VIDEO 1 button, but also the other buttons such as VIDEO 2 , DVD , SA-CD/CD , FM and AM can be used.) SOUND FIELD CLEAR MODE The preset

31、 sound field is 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 power ?/1 button to turn on the main power. The message “SF. CLR.” appears and initialization is performed. SOFT

32、WARE VERSION DISPLAY MODE The software version is displayed. Procedure: While depressing the PRESET TUNING and the I buttons simultaneously, press the power ?/1 button to turn on the main power. The model name, destination and the software version are displayed. KEY CHECK MODE Button check Procedure

33、: While depressing the A.F.D. and the I buttons simulta- neously, 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 press

34、ed “REST 00” appears. AUTO BETICAL MODE This mode is installed in the Europe models only. When this mode is used, the receiver scans the broadcasts that can be received by the tuner, and sets up the broadcasts. Be sure to start scanning after connecting the antenna. Procedure: 1.Check that the anten

35、na is connected. 2.Press the ?/1 button to turn on the power while pressing the MEMORY button. CHANGE COMMON MODE This mode is command mode changed to AV 1 or AV2. Procedure: While depressing the ENTER button, press the power ?/1 button to turn on the main power. Either the message “C.MODE.AV 1” or

36、“C.MODE.AV 2” appears. SHIPMENT MODE All preset contents are reset to the default setting. Procedure: While depressing the A.F.D. and the AM buttons simulta- neously, press the power ?/1 button to turn on the main power. “CLEARED” appears and switch off the set. L SW CR SLSSR SBLSBSBR LFESP A SP B S

37、LEEP OPT COAX MULTI CH IN 96/24 DIGITALEXPRO LOGIC II x DTS-ESNEO:6 MPEG-2 AAC RDS D.RANGE EQ STEREO MONO DDDD dB kHz mft. MHz MEMORY DIRECT L SW R S SB LFESP A SP B SLEEP OPT COAX MULTI CH IN 96/24 DIGITALEXPRO LOGIC II x DTS-ESNEO:6 MPEG-2 AAC RDS D.RANGE EQ STEREO MONO DDDD dB kHz mft. MHz MEMORY

38、 DIRECT C SLSR SBLSBR SP A SP B SLEEP OPT COAX MULTI CH IN 96/24 DIGITALEXPRO LOGIC II x DTS-ESNEO:6 MPEG-2 AAC RDS D.RANGE EQ STEREO MONO DDDD kHz mft. MHz MEMORY DIRECT 8 STR-K675P SECTION 3 DIAGRAMS Circuit Boards Location DIGITAL board MAIN board DISPLAY board HEADPHONE board POWER board TUNING

39、board STANDBY board VIDEO board 99 STR-K675P STR-K675P Waveforms DIGITAL Board For Schematic Diagrams. Note: All capacitors are in F unless otherwise noted. (p: pF) 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specifi

40、ed. %: 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 respect to ground un- der no-signal (detuned) conditions. No mark : FM Voltages are taken with a VOM (Input impedanc

41、e 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 J: ANALOG c: DIGITAL I: VIDEO For Printed Wiring Boards. Note: X : parts extracted from the component side. a: Through hole. f

42、: internal component. : Pattern from the side which enables seeing. THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) C B These are omitted. E Q B These are omitted. CE Caution: Pattern face side:Parts on the pat

43、tern face side seen from (Side A)the pattern face are indicated. Parts face side:Parts on the parts face side seen from (Side B)the parts face are indicated. 1 IC1501 9 (MCLK1) 1 V/DIV, 40 ns/DIV 72 ns 3.4 Vp-p 2 IC1101 id (X1) 1 V/DIV, 20 ns/DIV 41.6 s 4.2 Vp-p 3 IC1301 ws (XIN) 1 V/DIV, 40 ns/DIV

44、81 ns 4.4 Vp-p Indication of transistor. Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. 1010 STR-K675P STR-K675P 3-1.BLOCK DIAGRAM MAIN SECTION Signal Path : FM : ANALOG : DIGITAL R-CH is omitted due to same as L

45、-CH. : VIDEO AUDIO IN AUDIO IN PROCESSOR INL44 49LOUT INL52 40SLOUT 33COUT DATA24 CLK25 27 VOL CLK SDA SCL 28 VOL DATA LATCH SYSTEM CONTROL IC1101(2/3) DVD IN J1301 3562 IC1303 DIGITAL AUDIO I/F RECEIVER IC1301 L DISPLAY /POWER SECTION DIN25 DO35 DI36 CLK38 CE37 ERROR34 XSTATE17 XMODE48 13CK OUT 20XMCK 14BCK 15LRCK 16DATAO IC130