Sony-STRDG300-rec-sm 电路图 维修手册.pdf

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1、1 SERVICE MANUALAEP Model STR-DG300 FM STEREO/FM-AM RECEIVER Amplifier section Stereo Power Output 1), Reference Power Output 1) 2) 8 ohms 20 Hz 20 kHz, THD 0.09 % 90 W + 90 W, 110 W/ch 8 ohms 1 kHz, THD 0.7 %105 W + 105 W, 120 W/ch 8 ohms 1 kHz, THD 10 %130 W + 130 W, 160 W/ch 1) Measured under the

2、 following conditions: 230 V AC, 50 Hz 2) Reference power output for front speakers. Depending on the sound field settings and the source, there may be no sound output. Frequency response Analog10 Hz 70 kHz +0.5/2 dB (with sound field and tone bypassed) SPECIFICATIONS Inputs AnalogSensitivity: 500 m

3、V/ 50 kohms S/N 3) : 96 dB (A, 500 mV 4) ) Digital (Coaxial)Impedance: 75 ohms S/N: 100 dB (A, 20 kHz LPF) Digital (Optical)S/N: 100 dB (A, 20 kHz LPF) Output (Analog) AUDIO OUTVoltage: 500 mV/10 kohms SUB WOOFERVoltage: 2 V/1 kohm Tone Gain levels6 dB, 1 dB step 3) INPUT SHORT (with sound field and

4、 tone bypassed). 4) Weighted network, input level. Ver. 1.0 2006. 06 9-887-325-01 2006F04-1 2006. 06 Sony Corporation Home Audio Division Published by Sony Techno Create Corporation Manufactured under license from Dolby Laboratories. “Dolby” and the double-D symbol are trademarks of Dolby Laboratori

5、es. “DTS” and “DTS 2.0” are trademarks of Digital Theater Systems, Inc. Continued on next page Photo: Black type RadioFans.CN 收音机爱 好者资料库 2 STR-DG300 FM tuner section Tuning range87.5 108.0 MHz Intermediate frequency10.7 MHz Useable sensitivity11.2 dBf, 1 V/75 ohms S/N Mono/Stereo76 dB/70 dB Harmonic

6、 distortion at 1 kHz Mono/Stereo0.3%/0.5% Separation45 dB at 1 kHz Frequency response30 Hz 15 kHz, +0.5/2 dB AM tuner section Tuning range With 9-kHz tuning scale:531 1,602 kHz Intermediate frequency450 kHz Usable sensitivity50 dB/m (at 1,000 kHz or 999 kHz) General Power requirements230 V AC, 50/60

7、 Hz Power consumption220 W Power consumption (during standby mode) 0.2 W AC outlets1 switched, 100 W/0.4A MAX Dimensions (w/h/d) (Approx.) 430 157.5 316 mm including projecting parts and controls Mass (Approx.)7.5 kg Supplied accessories FM wire antenna (1) AM loop antenna (1) Remote commander RM-AA

8、U007 (1) R6 (size-AA) batteries (2) Design and specifications are subject to change without notice. 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 WI

9、TH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. MODEL IDENTIFICATION BACK PANEL Part No. MODELPART No. AEP2-665-982-0s RadioFans.CN 收音机爱 好者资料库 3 STR-DG300 TABLE OF CONTENTS 1. GENERAL Description and location of parts. 4 2. DISASSEMBLY 2-1. Case .

10、 6 2-2. Front Panel Section . 7 2-3. Back Panel Section. 7 2-4. DIGITAL Board . 8 2-5. MAIN Board Section . 8 2-6. STANDBY Board .9 3. TEST MODE. 10 4. DIAGRAMS 4-1. Block Diagram Tuner/Audio Section . 11 4-2. Block Diagram Digital Section . 12 4-3. Block Diagram Key/Display Section . 13 4-4. Block

11、Diagram Power Section . 14 4-5. Circuit Boards Location . 15 4-6. Printed Wiring Boards Main Section . 16 4-7. Schematic Diagram Main Section (1/2) . 17 4-8. Schematic Diagram Main Section (2/2) . 18 4-9. Printed Wiring Board Digital Section (Side A) . 19 4-10. Printed Wiring Board Digital Section (

12、Side B) . 20 4-11. Schematic Diagram Digital Section (1/5) . 21 4-12. Schematic Diagram Digital Section (2/5) . 22 4-13. Schematic Diagram Digital Section (3/5) . 23 4-14. Schematic Diagram Digital Section (4/5) . 24 4-15. Schematic Diagram Digital Section (5/5) . 25 4-16. Printed Wiring Board Front

13、 B Speaker Section . 26 4-17. Schematic Diagram Front B Speaker Section . 26 4-18. Printed Wiring Boards Display Section . 27 4-19. Schematic Diagram Display Section . 28 4-20. Printed Wiring Board Power Section . 29 4-21. Schematic Diagram Power Section . 30 5. EXPLODED VIEWS 5-1. Case Section . 38

14、 5-2. Front Panel Section . 39 5-3. Chassis Section . 40 6. ELECTRICAL PARTS LIST. 41 RadioFans.CN 收音机爱 好者资料库 4 STR-DG300 SECTION 1 GENERALThis section is extracted from instruction manual. 4GB Description and location of parts Getting Started Front panel ?/1 VIDEO 3 IN/ PORTABLE AUDIO IN SPEAKERS (

15、OFF/A/B/A+B) PHONES TREBLEBASSA.F.D.MOVIEMUSICDIRECT TUNING MODE DISPLAYINPUT MODE INPUT SELECTOR TUNING + WOOFER ON/OFFMUTING MASTER VOLUME 375 9q;qlqaqsqjqkqdqfqgqh 12468 NameFunction A ?/1Press to turn the receiver on or off (page 19, 23, 24, 32, 34). B SPEAKERS (OFF/A/B/A+B) Press to select the

16、speaker system (page 20). C TUNING MODEPress to select the tuning mode (page 33, 36). D DisplayThe current status of the selected component or a list of selectable items appears here (page 6). E Remote sensorReceives signals from remote commander. F DISPLAYPress to select information displayed on th

17、e display (page 37, 38). NameFunction G INPUT MODEPress to select the input mode when the same components are connected to both digital and analog jacks (page 38). H MASTER VOLUME Turn to adjust the volume level of all speakers at the same time (page 21, 22, 23, 24). I MUTINGPress to mute the sound

18、(page 22). J WOOFER ON/OFF Press to turn the sub woofer on or off. K INPUT SELECTOR Turn to select the input source to playback (page 22, 23, 24, 31, 33, 36, 38, 39). L DIRECTPress to listen to high quality analog sound (page 31). 5GB Getting Started NameFunction M MOVIE, MUSIC Press to select sound

19、 fields for movie or music (page 29). N A.F.D.Press to select A.F.D. mode (page 29). O TREBLE +/Press to adjust the treble level of the front speakers (page 28). P BASS +/Press to adjust the bass level of the front speakers (page 28). Q TUNING +/Turn to scan a station (page 33, 35). R VIDEO 3 IN/ PO

20、RTABLE AUDIO IN jack To connect a portable audio such as MP3 player, etc. (page 15, 22). S PHONES jackConnects to a headphone (page 43). 6GB About the indicators on the display MEMORY LCR SLSR SW LFESP A SP B RDS STEREO MONO A.DIRECT D.RANGESLEEP OPT COAX DIGITAL;DTS q;9qd qf qaqs 8 6743521 NameFunc

21、tion A SWLights up when you press WOOFER ON/OFF on the receiver to turn on the sub woofer and the audio signal is output from the SUB WOOFER jack. B LFELights up when the disc being played back contains an LFE (Low Frequency Effect) channel and the LFE channel signal is actually being reproduced. C

22、SP A/SP BLights up according to the speaker system used. However, these indicators do not light up if the speaker output is turned off or if a headphone is connected. D ;DIGITALLights up when Dolby Digital signals are input. Note When playing a Dolby Digital format disc, be sure that you have made d

23、igital connections and that INPUT MODE is not set to “ANALOG” (page 38). E DTSLights up when DTS signals are input. Note When playing a DTS format disc, be sure that you have made digital connections and that INPUT MODE is not set to “ANALOG” (page 38). F MEMORYLights up when a memory function, such

24、 as Preset Memory (page 35), etc., is activated. NameFunction G A.DIRECTLights up when ANALOG DIRECT is selected (page 31). H Preset station indicators Lights up when using the receiver to tune in radio stations you have preset. For details on presetting radio stations, see page 35. I Tuner indicato

25、rs Lights up when using the receiver to tune in radio stations (page 32), etc. J D.RANGELights up when dynamic range compression is activated (page 27). K COAXLights up when INPUT MODE is set to “AUTO IN” and the source signal is a digital signal being input through the COAXIAL jack, or when INPUT M

26、ODE is set to “COAX IN” (page 38). L OPTLights up when INPUT MODE is set to “AUTO IN” and the source signal is a digital signal being input through the OPTICAL jack, or when INPUT MODE is set to “OPT IN” (page 38). M SLEEPLights up when the sleep timer is activated (page 39). 7GB Getting Started Nam

27、eFunction N Playback channel indicators L R C SL SR The letters (L, C, R, etc.) indicate the channels being played back. The boxes around L and R show the receiver downmixes the source sound to 2 channels. Front Left Front Right Center (monaural) Surround Left Surround Right Example: Recording forma

28、t (Front/ Surround): 3/2.1 Sound Field: A.F.D. AUTO LCR SLSR SW 5 STR-DG300 8GB Rear panel 34 DIGITAL VIDEO 1 IN VIDEO 2 IN DVD IN COAXIAL OPTICAL ANTENNA AM SA-CD/CDMD/TAPE OUT L R IN L R AUDIO IN DVD AUDIO ININ VIDEO 2 AUDIO IN VIDEO 1 AUDIO OUT L R L R AUDIO OUT SUB WOOFER FRONT AFRONT B + R L R

29、L SPEAKERS 12 AC OUTLET SWITCHED 100W/0.4A MAX ADIGITAL INPUT section OPTICAL IN jack Connects to a DVD player, etc. The COAXIAL jack provides a better quality of loud sound (page 16). COAXIAL IN jack BANTENNA section FM ANTENNA Connects to the FM wire antenna supplied with this receiver (page 18).

30、AM ANTENNA Connects to the AM loop antenna supplied with this receiver (page 18). CSPEAKER section Connects to speakers (page 13). Connects to sub woofer (page 13). D AUDIO INPUT/OUTPUT section AUDIO IN/ OUT jack Connects to an MD deck or VCR, etc. (page 15, 16). White (L) Red (R) 9GB Getting Starte

31、d You can operate the receiver with the supplied remote. You can also use the remote to control the Sony audio/video components that the remote is assigned to operate (page 40). RM-AAU007 Remote commander 123 46 78 0/10ENTER 9 SYSTEM STANDBY TV/VIDEO SLEEP TEST TONE AV ?/1 VIDEO 1VIDEO 2 MD/TAPESA-C

32、D/CD VIDEO 3 DVD A.F.D.MOVIE RETURN/EXIT TV CH PRESET TV CH + PRESET + TUNING TV TUNING + REPLAY ADVANCE MENU MUSICLEVEL SUB WOOFER MEMORY DVD MENU CLEAR TOOLSDISPLAYMUTING TV VOL MASTER VOL FM MODE D.TUNING D.SKIP TUNERAMP MENU TV ?/1 ?/1 10/ - F Gg f . HmM Xx 5 AV ?/1 (on/standby) switch TV ?/1, ?

33、/1 (on/standby) switch 1 2 wf wd 5 6 9 qs qg qh qd qj 3 4 ql w; wa qa qf 8 q; 7 qk ws NameFunction A AV ?/1Press to turn on or off the Sony audio/video components that the remote is assigned to operate (page 40). If you press ?/1 (B) at the same time, it will turn off the receiver and other componen

34、ts (SYSTEM STANDBY). Note The function of the AV ?/1 switch changes automatically each time you press the input buttons (W). B TV ?/1Press TV ?/1 and TV (M) at the same time to turn the TV on or off. ?/1Press to turn the receiver on or off. To turn off all components, press ?/1 and AV ?/1 (A) at the

35、 same time (SYSTEM STANDBY). C AMP MENUPress to display the menu of the receiver. Then, use the control buttons to perform menu operations. D MOVIE, MUSIC Press to select sound fields for movie or music. E SUB WOOFER LEVEL +/ Press to adjust the sub woofer level. F FM MODEPress to select FM monaural

36、 or stereo reception. G D.TUNINGPress to enter direct tuning mode. D.SKIPPress to skip disc of the CD player or DVD player (multi- disc changer only). H DVD MENUPress to display the menu of the DVD player on the TV screen. Then, use the control buttons to perform menu operations. I ENTERPress to ent

37、er the value after selecting a channel, disc or track using the numeric buttons. MEMORYPress to store a station. continued 10GB NameFunction J MUTINGPress to mute the sound. K TV VOL +a)/ Press TV VOL +/ and TV (M) at the same time to adjust the TV volume level. MASTER VOL +a)/ Press to adjust the v

38、olume level of all speakers at the same time. L ./Press to skip tracks of the CD player, DVD player, MD deck, or tape deck. REPLAY / ADVANCE Press to replay the previous scene or fast forward the current scene of the VCR or DVD player. m/MPress to search tracks in the forward/ backward direction of

39、the DVD player. fast forward/rewind of the VCR, CD player, MD deck, or tape deck. Ha)Press to start playback of the VCR, CD player, DVD player, MD deck, or tape deck. XPress to pause playback or recording of the VCR, CD player, DVD player, MD deck, or tape deck. (Also starts recording with component

40、s in recording standby.) xPress to stop playback of the VCR, CD player, DVD player, MD deck, or tape deck. TV CH +/Press TV CH +/ and TV (M) at the same time to select preset TV channels. PRESET +/Press to select preset stations. preset channels of the VCR or satellite tuner. TUNING +/Press to scan

41、a station. M TVTo activate the buttons with orange printing, press TV and the button with orange printing simultaneously. 10/xPress to select track numbers over 10 of the VCR, satellite tuner, CD player or MD deck. channel numbers of the Digital CATV terminal. CLEARPress to clear a mistake when you

42、press the incorrect numeric button. return to continuous playback, etc. of the satellite tuner or DVD player. 11GB Getting Started a)The number 5, MASTER VOL +, TV VOL +, and H buttons have tactile dots. Use the tactile dots as references when operating the receiver. Notes Some functions explained i

43、n this section may not work depending on the model. The above explanation is intended to serve as an example only. Therefore, depending on the component, the above operation may not be possible or may operate differently than described. NameFunction T Numeric buttons (number 5a) Press to preset/tune

44、 to preset stations. select track numbers of the CD player, DVD player or MD deck. Press 0/10 to select track number 10. select channel numbers of the VCR or satellite tuner. Press the numeric buttons and TV (M) at the same time to select the TV channels. U A.F.D.Press to select A.F.D. mode. V Input

45、 buttons Press one of the buttons to select the component you want to use. When you press any of the input buttons, the receiver turns on. The buttons are factory assigned to control Sony components as follows. You can change the button assignments following the steps in “Changing button assignments” on page 40. W TV/VIDEOPress TV/VIDEO and TV (M) at the same time to select the input signal (TV input or video input). SLEEPPress to activate the Sleep Timer function and the duration which the receiver