Sony-STRDE225-rec-sm维修电路原理图.pdf

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1、STR-DE225/DE325 AEP Model Canadian Model STR-DE225/DE325 US Model E Model Australian Model Chinese Model STR-DE325 UK Model STR-DE225 SERVICE MANUAL FM STEREO/FM-AM RECEIVER Manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY”, “PRO LOGIC” and the double-D symbol are tra

2、demarks of Dolby Laboratories Licensing Corporation. MICROFILM SPECIFICATIONS Photo : STR-DE225 Amplifier section Power output Stereo mode(DIN 1 kHz, 4 ohms) STR-DE325: 90 W + 90 W STR-DE225: 40 W + 40 W Surround(DIN 1 kHz, 4 ohms) modeFront:STR-DE325: 90W/ch STR-DE225: 40W/ch Centre: STR-DE325: 90W

3、 STR-DE225: 40W (only in PRO LOG IC MODE) REAR: STR-DE325: (DIN 1 kHz, 4ohms) 90 W STR-DE225: (DIN 1 kHz, 4ohms) 40 W 5.1/DVDFront: 90 W/ch INPUT * mode(DIN 1 kHz, 4 ohms) Centre: 90 W (DIN 1 kHz, 4 ohms) Rear: 45 W/ch (DIN 1 kHz, 8 ohms) (except STR-DE225) FrequencyPHONO: RIAA(except STR-DE225) res

4、ponseequalization curve 0.5 dB TV / LD, CD, TAPE / MD, VIDEO, 5.1/DVD INPUT*: 10Hz - 50kHz 1dB Input Sensitivity Impedance S/N (Weighting network, input level) PHONO5074 dB (STR-DE325)2.5mVkilohms72 dB* (MM)(A, 2.5 mV) CD, 5.1/DVD200 mV INPUT* 5082 dB TAPE/MD, kilohms82 dB* TV/LD, VIDEO *78IHF Outpu

5、tsTAPE/MD REC OUT: Voltage: 150 mV, Impedance: 10 kilohms VIDEO AUDIO OUT: Voltage: 150 mV, Impedance: 10 kilohms WOOFER/MIX AUDIO OUT: Voltage: 2V Impedance: 10 kilohms PHONES: Accepts low and high impedance headphones MutingFull mute BASS BOOST+10dB at 70 Hz TONE8dB at 100 Hz and 10 kHz FM tuner s

6、ection Tuning range87.5 108.0 MHz Aerial terminals75 ohms, unbalanced SensitivityMono: 18.3 dBf, 2.2V /75 ohms Stereo: 38.3 dBf, 22.5V /75 ohms Usable sensitivity11.2 dBf, 1V /75 ohms (IHF) S/NMono: 76 dB Stereo: 70dB HarmonicMono: 0.3 % distortion atStereo: 0.5 % 1 kHz Separation45dB at 1 kHz Frequ

7、ency30 Hz 15kHz +0.5 dB response Selectivity60 dB at 400 kHz AM tuner section Tuning range531 1602 kHz AerialLoop aerial Usable sensitivity50 dB/m (at 999 kHz) S/N54 dB(at 50 mV/m) Harmonic0.5%(50 mV/m, 400Hz) distortion Selectivity35 dB 2 Continued on next page RadioFans.CN 收音机爱 好者资料库 2 1.GENERAL 3

8、 2.TEST MODE4 3.DIAGRAMS 3-1.Circuit Boards Location 5 3-2.Block Diagram 7 3-3.Schematic Diagram Display Section 9 3-4.Printed Wiring Boards Display Section 11 3-5.Schematic Diagram Power Section 13 3-6.Printed Wiring Boards Power Section 15 3-7.Printed Wiring Boards Main Section 17 3-8.Schematic Di

9、agram Main Section (1/3) 19 3-9.Schematic Diagram Main Section (2/3) 21 3-10. Schematic Diagram Main Section (3/3) 23 3-11. IC Pin Function Description25 3-12. IC Block Diagrams 27 4.EXPLODED VIEWS 4-1.Front Panel Section 29 4-2.Chassis Section30 5.ELECTRICAL PARTS LIST31 TABLE OF CONTENTS After cor

10、recting 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 exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE The AC leakage from any

11、 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 microampers). 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. Fol

12、low 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,

13、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 AC range are suitable. (See Fig. A) SAFETY CHECK-OUT To Exposed Metal Parts on Set 0.15 F 1.5 k

14、AC Voltmeter (0.75 V) Earth Ground Fig. A. Using an AC voltmeter to check AC leakage. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS

15、WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPO

16、SANTS QUE PAR DES PISES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPMENTS PUBLIS PAR SONY. General SystemTuner section; PLL quartz-locked digital synthesizer system Preamplifier section: Low-noise NF type epualizer Power amplifier section: Pure-complimentary SEPP Power230 V AC, 50

17、/60 Hz requirements PowerSTR-DE325: 195 W consumption STR-DE225: 110 W AC outletsSwitched 100 W (except for the U.K. model) Dimensions430 145 295 mm Mass(Approx.)STR-DE325: 7.4 kg STR-DE225: 6.1 kg SuppliedFM wire aerial (1) accessoriesAM loop aerial (1) Remote controller (remote) (1) Size AA (R6) b

18、atteries (2) Scart adaptor (1) Design and specifications are subject to change without notice. Specifications indicated are measured at 230 VAC, 50 Hz RadioFans.CN 收音机爱 好者资料库 3 SECTION 1 GENERAL 123546 789!?!?!?!?!?!?!?!? !? !? ? ? #? ? #? ? ? ? #? 1234 56789!?!?!? LOCATION AND FUNCTION OF CONTROLS

19、FRONT PANEL REAR PANEL 1 POWER switch (I/u) 2 CENTER LEVEL +, buttons 3 REAR LEVEL +, buttons 4 PRO LOGIC, C.STUDIO, HALL indicators 5 BASS BOOST indicator 6 MASTER VOLUME control 7 BALANCE control 8 TREBLE control 9 BASS control ! MUTING button/indicator ! SURROUND ON/OFF button ! BASS BOOST button

20、 ! SURROUND EFFECT/DELAY, MODE buttons ! SET UP button ! TAPE/MD FUNCTION button ! TUNER FUNCTION button ! CD FUNCTION button ! VIDEO FUNCTION button ! TV/LD FUNCTION button Numeric buttons SHIFT button DIRECT TUNING button CHARACTER, DISPLAY buttons MEMORY button FM/AM button PRESET/CHARACTER +, bu

21、ttons FM MODE button SLEEP button TUNING/PTY SELECT +, buttons # RDS PTY, EON buttons # PHONES jack # SPEAKERS A, B ON/OFF buttons 1 ANTENNA (FM/AM) 2 y SIGNAL GND 3 MIX AUDIO OUT 4 AC OUTLET 5 AC power cord 6 FRONT SPEAKERS (A/B) 7 SURROUND SPEAKERS (CENTER) 8 SURROUND SPEAKERS (REAR) 9 VIDEO AUDIO

22、 IN, AUDIO OUT 0 TV/LD AUDIO IN ! TAPE/MD IN, REC OUT ! CD IN Photo : STR-DE225 Photo : STR-DE225 4 SECTION 2 TEST MODE INITIALIZATION MODE * All preset contents are cleared when this mode is activated. Use this mode before returning the product to clients upon completion of repair. * Procedure: Whi

23、le depressing the VIDEO and the TAPE/MD buttons simultaneously, press the power I/u button to turn on the main power. The message INITIAL appears and initialization is performed. FLUORESCENT INDICATOR TUBE TEST MODE * All fluorescent segments are tested. When this test is activated, all segments tur

24、n on at the same time, then each segment turns on one after another. * Procedure: While depressing the TV/LD and the BASS BOOST buttons simultaneously, press the power I/u button to turn on the main power. All segments turn on at the same time, then each segment turns on one after another. The messa

25、ge FINISH appears when this test is complete. AUTO-BETICAL CHECK MODE * To auto-scanning and memorise of RDS station. (RDS model only). * Procedure: While depressing the MEMORY button, press the power I/u button to turn on the main power. The message AUTO BET appears and each function is selected on

26、e after another. 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. (for US, CND and E models only) * Procedure: Set the FUNCTION to AM. Turn off the main power. While depressing the TUNING+ button, press the power I/u button t

27、o turn on the main power. Either the message 9k STEP or 10k STEP appears. Select the desired step. REAR SPEAKER GAIN UP MODE * The rear speaker gain can be set to either NORMAL or GAIN UP. * Procedure: While depressing the -SURROUND- MODE button, press the power I/u button to turn on the main power.

28、 Either the message NORMAL or GAIN UP appears. When the product enters this mode again, the other gain appears. Select the desired gain. SOFTWARE VERSION DISPLAY MODE * The software version is displayed. * Procedure: While depressing the TUNER and the BASS BOOST buttons simultaneously, press the pow

29、er I/u button to turn on the main power. The software version is displayed. 5 SECTION 3 DIAGRAMS 3-1.CIRCUIT BOARDS LOCATION PRIMARY board DISPLAY board SP-SW board 10 KEY board VR-TONE board VOLUME board MAIN board MIX-OUT board STAND BY board SECONDARY board SP-SW-A board SP-SW-B board 6 For schem

30、atic diagrams. Note: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. %: indicates tolerance. : internal component. 2 : nonflammable resistor. 1 : fusible r

31、esistor. C : panel designation. U : B+ Line. V : B Line. H : adjustment for repair. Voltages and waveforms are dc with respect 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 production t

32、olerances. Waveforms are taken with a oscilloscope. Circled numbers refer to waveforms. Signal path. F: FM Abbreviation CND: Canadian EE: East European AUS: Australian CH: Chinese G: German MY: Malaysia SP: Singapore EA: Saudi Arabia THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRA

33、MS. (In addition to this necessary note is printed in each block.) For printed wiring boards. Note: X : parts extracted from the component side. : Through hole. : internal component. b : Pattern from the side which enables seeing. Note: The components identified by mark ! or dotted line with mark !

34、are critical for safety. Replace only with part number specified. Note: Les composants identifis par une marque ! sont critiques pour la scurit. Ne les remplacer que par une pice portant le numro spcifi. 1 IC300 32PIN (OSC) 2 IC201 34PIN (X1) 8MHz 4.19MHz 5.2Vp-p 4.4Vp-p Waveform STR-DE225/DE325 7 8

35、 DATA L OUTFM AMR OUT CLK CE TUNED STEREO T MUITE DO R CH FM ANT (75) AM ANT SDATA SCLK SLAT AUTO STOP STEREO T MUTE DO J401 L R PHONO R CH J402 L R R CH L R R CH J403 L R R CH L R R CH VIDEO IN EQ AMP IC402 +12V REG IC801 28 TUNER BLOCK SIGNAL SIG DET OUT L R R CH CD L R R CH TV/LD VIDEO OUT TAPE I

36、N TAPE OUT J403 VIDEO IN CD TV/LD VIDEO OUT TAPE IN TAPE OUT J402 30 29 24 25 26 22 21 CL 15 DI 14 CE 13 27 23 20 S DATA S CLK SLAT AUDIO SELECTOR IC401 DATA 35 37 CLK 34 38 CE 30 24L OUT 9C OUT 22S OUT LT IN45 31 32 X301 8MHz DATA CLK S DATA S CLK SURROUND PROCESSOR IC300 BASS RV422 TREBLE RV421 DB

37、FB CONTROL Q401,452 AMP IC404 IC302 (1/2) 4 2 16 1314 X1 4.33MHz RDS IC1 MUTE Q303 BALANCE RV423 MUTE Q307 MUTE Q308 VOLUME RV404 M DOWN UP BIAS Q701,Q702 14 15 6 2 3 VEE VCC IN 1 +VE 1 -VE 1 13 VCC POWER AMP IC701 +B -B POWER AMP Q703 CURRENT DET Q720 POWER AMP Q704 PROTECTOR Q721-723 RELAY DRIVE Q

38、710 RY701 C S(L) S(R) SURROUND SPEAKER J741 PHONS TM601 FRONT SPEAKER TM701 R CH L R RELAY DRIVE Q610 RY601 D724 SPEAKER A SPEAKER B ON OFF ON OFF S701 R CH R CH R CH BA 87 32 MOTOR DRIVER IC202 UP DOWN SYSTEM CONTROL IC201 45 RDS CLK 46 RDS DATA PLL DATA T MUTE STEREO AUTO STOP SIGNAL 12 S CE 9 S C

39、LK 10 S DATA 13 S CE 53 LOW BASS DO T MUTE STEREO AUTO STOP SIG S LAT S CLK S DATA 54 MUTE FUNC 41 UP 42 DOWN 16 PROTECT 21 SP RY 22 SURR RY VERSION 56 X1 34 X2 35 X201 4.198MHz HALL 39 SIMULATED 38 PROLOGIC 37 MUTING 43 MUTINGHALLPROLOGIC C STUDIO LED +5V D235D236D237D238 FUNCTION KEY A/D 2 27 A/D

40、1 28 A/D 3 26 S217-239 S241,242 S240 FUNCTION KEY S201-216 KI 1 60 KI 2 59 S200 SYSTEM POWER SYS POWER 4477 72.70 6271.80 78 S1 15G1 10 S8-15 D221-223 FL201 FLOURESCENT INDICATOR TUBE F1 F2 F1 F2 13 -12V REG IC802 23 +9V REG Q808 +12V -24V REG Q801 +9V -12V +B -B -24V D802 T901 CND MODEL D820-823 F9

41、01 RELAY DRIVE Q809 RY801 RY851 RY801 RY901 EXCEPT CND MODEL RELAY DRIVE Q802 CNJ902 AC IN F902 T902 STANDBY IC950 6 58 DELAY +B SW Q951 D810-813 RESET Q201,202 REMOTE CONTROL RECEIVER 21 3 D202 D201 D901 L401 LED +5V IC201 +B TUNER/RDS +5V +5.6V IC203 15BRIDGE 23POWER RY 47STOP 17RESET 49SIRCS IC30

42、2 (1/2) SURROUND AMP 8IN 2 14 15 8 2 3 VEE VCC IN +VE -VE 13 VCC POWER AMP IC702 +B -B POWER AMP Q603 CURRENT DET Q620 POWER AMP Q604 12 11 +VE 2 -VE 2 POWER AMP Q653 CURRENT DET Q670 POWER AMP Q654 D725 D723 J253 WOOFER 25 18 19 40 11 RY852 CNJ902 S901 16 : FM : CD (ANALOG) Signal Path RCH is omitt

43、ed : PHONO LED SW Q231 D239 BASS BOOST LED +5V D203 AEP, UK, G, EE MODEL EXCEPT AEP, UK, G, EE MODEL AEP, UK, G, EE MODEL E, EA MODEL AEP, G, EE, SP, MY, AUS,CH MODEL EXCEPT E, EA, CH MODEL US, CND, E, EA MODEL BIAS Q651,Q652 BIAS Q601,Q602 3-2. BLOCK DIAGRAM STR-DE225/DE325 9 10 3-3. SCHEMATIC DIAG

44、RAM DISPLAY SECTION STR-DE225/DE325 12 A B C D E F G H I J 34567891011121314 11 12 Ref. No.Location D201B-3 D202B-2 D203B-3 D204B-3 D211A-9 D212A-9 D213B-9 D214B-9 D215B-9 D216B-9 D217B-9 D218B-9 Semiconductor Location Ref. No.Location 3-4. PRINTED WIRING BOARDS DISPLAY SECTION 1-669-293- 11 (11) 10

45、 KEY BOARD 14 MODE SET UP TAPE/MD PHONOTUNERTUNER TV/LDVIDEO CDCD EFFECT/DELAY SURROUND SURROUND ON/OFF BASS BOOST SHIFT DIRECT TUNING 09876 23451 1-669-262- 11 (11) MEMORY DISPLAYEONPTY RDS CHARACTER FM/AMFM MODESLEEP _ + REAR LEVEL _ + CENTER LEVEL 1/ (PRO LOGIC) (C.STUDIO) (HALL) 13 1 14 25141731

46、34 35 IC201 1 24 25 40 41 64 65 80 BEB B E E DISPLAY BOARD VR-TONE BOARD 7 9 1 1 B TO MAIN BOARD CNS204 G TO MAIN BOARD CNS701 1-669-265- 11 (11) 1-669-264- 11 (11) BALANCETREBLE MUTING BASS (BASS BOOST) VOLUME BOARD 1 14 58 7 MASTER VOLUME M B B E E A TO MAIN BOARD CNS301 RV404 FL201 PRESET CHARACT

47、ER _ + TUNING PTY SELECT _ + 16 DE325:AEP,G,EE MODEL DE325:AEP G,EE MODEL DE225:AEP,G,EE,UK DE325:AEP,G,EE MODEL DE225:CND DE325:EXCEPT AEP,G,EE MODEL DE225:AEP,G,EE,UK DE325:AEP,G,EE MODEL DE225:AEP,G,EE,UK DE325:AEP,G,EE,AUS MODEL DE225: AEP,G,EE,UK MODEL DE325: EE,SP,MY MODEL DE325:E,EA,CH AUS,SP

48、,MY MODEL RD1 RD2 RD3 RD4 RD5 RD6 RD7 RD8 RD9 RD10 RD11 RD12 RD13 RD14 RD15 RD16 RD17 RD18 RD19 RD20 RD21 RD22 RD23 RD24 RD25 (Page 17) (Page 17) (Page 18) Ref. No.Location D221B-8 D222B-8 D223B-8 D225B-8 D231B-2 D235C-11 D236B-11 D237B-11 D239C-2 D238F-2 D421I-1 IC201C-6 IC202B-1 IC203C-10 IC404I-3

49、 Q201B-3 Q202B-4 Q231B-2 Q401H-3 Q402I-2 Q451I-2 Q452H-2 STR-DE225/DE325 13 14 3-5. SCHEMATIC DIAGRAM POWER SECTION STR-DE225/DE325 12 A B C D E F G H I 345678910111213 15 16 3-6. PRINTED WIRING BOARDS POWER SECTION PRIMARY BOARDSECONDARY BOARD 1-669 -267- 11 (11) 1-669-268- 11 (11) F TO MAIN BOARD CN801 111 T901 POWER TRANSFORMER 1 2 F901 STAND BY BOARD VOL SEL BOARD SP-SW BOARD SW (A) BOARDSW (B) BOARD 16 1-669-270- 1-669-271- 1-669