Sony-STRDE185-rec-sm维修电路原理图.pdf

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1、1 SERVICE MANUALUS Model AEP Model UK Model STR-DE185 FM STEREO/FM-AM RECEIVER AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC DISTORTION: With 8 ohm loads, both channels driven, from 40 20,000 Hz; rated 100 watts per channel minimum RMS power, with no more than 0.09 % total harmonic dist

2、ortion from 250 milliwatts to rated output (Models of area code US only). Amplifier section POWER OUTPUT Models of area code US Rated Power Output at Stereo Mode (8 ohms 40 Hz 20 kHz, THD 0.09 %) 100 W + 100 W Models of area code AEP, UK Rated Power Output at Stereo Mode (8 ohms 1 kHz, THD 0.7 %) 10

3、0 W + 100 W 1) 1) Measured under the following conditions: Area codePower requirements AEP, UK230 V AC, 50 Hz Frequency response CD, MD/TAPE,20 Hz 50 kHz VIDEO 1, VIDEO 2+0/0.5 dB (with bass boost bypassed) Inputs (Analog) CD, MD/TAPE,Sensitivity: 250 mV VIDEO 1, VIDEO 2Impedance: 50 kilohms S/N 2)

4、: 85 dB (A, 250 mV 3) ) 2) INPUT SHORT. 3) Weighted network, input level. SPECIFICATIONS Outputs MD/TAPE, VIDEO 1Voltage: 250 mV Impedance: 10 kilohms Bass Boost:+8 dB at 70 Hz Tone:10 dB at 100 Hz and 10 kHz FM tuner section Tuning range87.5 108.0 MHz Antenna terminals75 ohms, unbalanced Intermedia

5、te frequency10.7 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:70 dB Harmonic distortion at 1 kHz Mono:0.5% Stereo:0.8% Separation35 dB at 1 kHz Frequency response30 Hz 15 kHz, +0.5/2 dB Selectivity60 dB at

6、400 kHz Ver 1.0 2002. 02 9-873-586-01 2002B0400-1 2002.02 Sony Corporation Home Audio Company Published by Sony Engineering Corporation Continued on next page RadioFans.CN 收音机爱 好者资料库 2 SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGR

7、AMS 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. STR-DE185 AM tuner section Tuning range Models of area code US With 10-kHz tuning scale: 530 1710 kHz 4) With 9-kH

8、z tuning scale:531 1710 kHz 4) Models of area code AEP, UK With 9-kHz tuning scale:531 1602 kHz AntennaLoop antenna Intermediate frequency450 kHz Usable sensitivity50 dB/m (at 1,000 kHz or 999 kHz) S/N45 dB (at 50 mV/m) Harmonic distortion1.0 % (50 mV/m, 400 Hz) Selectivity At 9 kHz:35 dB At 10 kHz:

9、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 ?/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. General

10、Power requirements Area codePower consumption US120 V AC, 60 Hz AEP, UK230 V AC, 50/60 Hz Power consumption Area codePower consumption US190 W AEP, UK210 W Power consumption (during standby mode) 0.5 W (for models of all area code) AC outlets Area codeAC outlets US1 switched, 120 W/1A MAX AEP, UK1 s

11、witched, 100 W MAX Dimensions430 145 300 mm (16 7/8 5 6/8 11 6/8 in.) including projecting parts and controls Mass (Approx.)7.0 kg (15 lb 7 oz) Supplied accessories FM wire antenna (1) AM loop antenna (1) Remote commander RM-U185 (1) R6 (size-AA) batteries (2) Design and specifications are subject t

12、o change without notice. MODEL IDENTIFICATION BACK PANEL Part No. MODELPART No. US4-238-277-0s AEP4-238-277-1s UK4-238-277-2s RadioFans.CN 收音机爱 好者资料库 3 TABLE OF CONTENTS 1. GENERAL Main unit . 4 Remote button description. 5 2. DISASSEMBLY 2-1. Case . 6 2-2. Front Panel Section . 7 2-3. Back Panel. 7

13、 2-4. Main Board . 8 3. TEST MODE. 9 4. DIAGRAMS 4-1. IC Pin Description. 10 4-2. Circuit Boards Location . 11 4-3. Block Diagram Main Section .12 4-4. Block Diagram Power Section . 13 4-5. Printed Wiring Board Main Section . 14 4-6. Printed Wiring Boards H/P, Outlet Section . 15 4-7. Schematic Diag

14、ram Main Section (1/2) .16 4-8. Schematic Diagram Main Section (2/2) .17 4-9. Schematic Diagram Display Section .18 4-10. Printed Wiring Board Display Section . 19 4-11. Printed Wiring Board Power SW Section .20 5. EXPLODED VIEWS 5-1. Case Section .21 5-2. Front Panel Section .22 5-3. Chassis Sectio

15、n . 23 6. ELECTRICAL PARTS LIST. 24 STR-DE185 1.5 k0.15 F AC voltmeter (0.75 V) To Exposed Metal Parts on Set Earth Ground Fig. A. Using an AC voltmeter to check AC leakage. SAFETY CHECK-OUT After correcting the original service problem, perform the following safety check before releasing the set to

16、 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 metal part to earth ground and from all exposed metal parts to any exposed metal part h

17、aving 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 battery-operated AC milliamm

18、eter. 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 Simpson 250 and Sanwa SH-63Trd

19、 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) 4 STR-DE185 SECTION 1 GENERALThis section is extracted from instruction manual. List of Button Locations and Reference Pages 5GB List of Button Location

20、s and Reference Pages Main unit How to use this page Use this page to find the location of buttons that are mentioned in the text. Illustration number r NAME 5 (18) RR Name of button/partReference page ALPHABETICAL ORDER A H AM 8 (13, 14) BALANCE L/R q; (12) BASS +/ wa (12) BASS BOOST ql (12) CD qg

21、(8, 12) DIRECT wg (13) DISPLAY qa (12, 16) Display 9 (11-16, 18, 19) FM 6 (13, 14) FM MODE wd (14) I O IR (receptor) 2 (4, 22) SHIFT wh (15) SLEEP (models of area code U) 4 (19) SPEAKERS A wj (10, 12) SPEAKERS B wk (10, 12) T Z TREBLE +/ w; (12) TUNER qh (8, 12-15, 18) TUNING/CHAR +/ ws (14, 18) VID

22、EO 1 qs (12) VIDEO 2 qd (8, 12) BUTTON DESCRIPTIONS ?/1 (power) 1 (11, 13, 23) MASTER VOLUME qj (12, 20) MD/TAPE qf (8, 12) MEMORY/ENTER wf (13, 15, 18) MUTING qk (12, 20) NAME 5 (18) Numeric buttons 3 (13) P S PHONES wl (12, 21) PRESET/PTY SELECT +/ (models of area code CEL, CEK) 7 (15, 16) PRESET

23、TUNING +/ (models of area code U) 7 (15, 23) PTY (models of area code CEL, CEK) 4 (16) 12 3456789q;qaqsqdqfqgqh qjqkqlw;wawswdwfwgwhwjwkwl 5 STR-DE185 24GB Remote button description You can use the remote RM-U185 to operate the components in your system. 10 0 789 456 123 ENTER CD VIDEO 2 MD/TAPE VID

24、EO 1DVD TUNER SYSTEM STANDBY SHIFT CH/PRESET + TREBLEMUTING BASS BOOST TV/VIDEO / ANT TV/VTR + BASS+ TV VOLTV CH + L BALANCE R MASTER VOL RETURN D. TUNING TOP MENUDVD MENU ENTER f F G g f F G g SLEEP AV ?/1 ?/1 D.SKIP The tables below show the settings of each button. RemoteOperationsFunction Button

25、 SLEEPReceiverActivates the sleep function and the duration which the receiver turns off automatically. ?/1ReceiverTurns the receiver on or off. VIDEO 1ReceiverTo watch VCR. (VTR mode 3) VIDEO 2ReceiverTo watch VCR. (VTR mode 1) DVDReceiverTo watch DVD. MD/TAPEReceiverTo listen to Minidisc or audio

26、tape. CDReceiverTo listen to compact disc. TUNERReceiverTo listen to radio programs. SHIFTReceiverPress repeatedly to select a memory page for presetting radio stations or tuning to preset stations. D.TUNINGReceiverTuner station direct key-in-mode. BALANCEReceiverAdjust the balance. L/R BASSReceiver

27、Reinforce the bass. BOOST TREBLEReceiverAdjust the treble tone +/quality. MUTINGReceiverMutes the sound from the receiver. BASS +/ReceiverAdjust the bass tone quality. Note When you press the function buttons (VIDEO 1, VIDEO 2, DVD), the input mode of the TV might not switch to the corresponding inp

28、ut mode that you want. In this case, press the TV/VIDEO button to switch the input mode of the TV. XxN mM . O 6 STR-DE185 Note : This set can be disassemble according to the following sequence. SECTION 2 DISASSEMBLY 2-1. CASE 2-1.CASE (Page 6) 2-2.FRONT PANEL SECTION (Page 7) 2-3.BACK PANEL (Page 7)

29、 SET 2-4.MAIN BOARD (Page 8) Note : Follow the disassembly procedure in the numerical order given. 1two screws (case 3 TP2) 2two screws (case 3 TP2) 3two screws (case 3 TP2) 4case 7 STR-DE185 2-2. FRONT PANEL SECTION 2-3. BACK PANEL 6front panel section 4two screws (BVTP3 x 8) 1CN4 2CN5 3CNP801 5fou

30、r screws (BVTP3 x 8) 1CN3 2CNP901 3CNP907 4three screws (BVTP3 x 8) 5two screws (BVTP3 x 8) 6two screws (BVTP3 x 8) 7 screw (BVTP3 x 8) 8 screw (BVTP3 x 8) 9 back panel (DE1) 8 STR-DE185 2-4. MAIN BOARD 4two screws (BVTP3 x 8) 5screw (BVTP3 x 8) 8MAIN board 6screw (BVTP3 x 8) 7 3two screws (BVTP3 x

31、8) 1CNP904 2CNP905 9 STR-DE185 SECTION 3 TEST MODE 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: 1. While pressing the five function buttons of VID

32、EO 1, VIDEO 2, MD/TAPE, CD and TUNER simultaneously, press the ?/1 button to turn the power ON. 2. The FL tube will illuminate in half light on. The following dis- play will be repeated whenever the five function buttons are pressed. Operation of function buttons 3. Press any button other than the f

33、unction buttons to release the check mode. AUTO-BETICAL Check Mode (AEP, UK models) To auto-scanning and memories of RDS station. Procedure: 1. While pressing the MEMORY/ENTER button, press the ?/1 button to turn the power ON. 2. The message “AUTO-BETICAL SELECT” are scrolled. AM Tuning Interval Sel

34、ection Mode (US model) Either 9 kHz step or 10 kHz step can be selected for the AM tuning interval. Procedure: 1. While pressing the TUNING/CHAR + button, press the ?/1 button to turn the power ON. 2. Either the message “9k STEP” or “10k STEP” appears. 3. Select the desired step. Software Version Di

35、splay Mode The software version is displayed. Procedure: 1. While pressing the two buttons of SPEAKERS B and VIDEO 1 simultaneously, press the ?/1 button to turn the power ON. 2. The software version is displayed. all light on half light on 1 half light on 2 all light off ex.)US model: U *.* AEP, UK

36、 model : CE *.* Area Shift version 10 STR-DE185 SECTION 4 DIAGRAMS 1 to 7DIG7 to 1ODigit drive signal output to the fluorescent indicator tube (FL201). 8+5VPower supply pin (+5 V) 9CLOSerial clock signal output to FM/AM tuner pack. 10DOOSerial data signal output to FM/AM tuner pack. 11DIISerial data

37、 signal input from FM/AM tuner pack. 12CEOSerial chip enable signal output to FM/AM tuner pack. 13VOL DATAOSerial data signal output to sound control IC. 14VOL CEOSerial clock signal output to sound control IC. 15RDS DATAIRDS data signal input from FM/AM tuner pack. (AEP, UK model only) 16PROTECTORI

38、Overload detection signal input 17RESETIReset signal input 18TUNEDITUNED indicator detection signal input from FM/AM tuner pack. 19STEREOISTEREO indicator detection signal input from FM/AM tuner pack. 20AVSSAnalog ground 21VERSIONIDestination select signal input (Fixed at H: US model, L: AEP, UK mod

39、el) 22FM SIGNAL OUTI FM/AM signal meter voltage detection signal input from FM/AM tuner pack. (AEP, UK model only) 23 to 28AD6 to 1IFunction keys signal input 29AVDDA/D converter power supply pin (+5 V) 30AVREFA/D converter reference voltage input (+5 V) 31NCNot used. (Connect to AVREF pin in this s

40、et) 32OPENNot used. (Open) 33GNDGround 34X1IMaster clock input (4.19 MHz) 35X2OMaster clock output (4.19 MHz) 36REC SW1OVIDEO 1 ON/OFF signal output 37REC SW2OMD/TAPE ON/OFF signal output 38, 39VOL A, BIMaster volume JOG data input A, B 40FUNC.MUTEONot used. (Fixed at L in this set) 41CKOSerial cloc

41、k signal output to electoric volume IC. 42DATAOSerial data signal output to electoric volume IC. 43STBOSerial data strobe signal output to electoric volume IC. 44SYS.POWERISystem power signal input 45AC MUTEOA-Class mute signal output 46RDS INTIRDS clock signal input from FM/AM tuner pack. (AEP, UK

42、model only) 47STOPIStop signal input from reset signal generator IC. 48VSSGround 49SIRCSISircs signal input from remote control receiver IC. 50TUNER MUTEOMuting control signal output to FM/AM tuner pack. 51NCNot used. (Open) 52+5VPower supply pin (+5 V) 53BASS B. LEDOBASS BOOST LED drive signal outp

43、ut 54SPK A LEDOSPEAKERS A LED drive signal output 55SPK B LEDOSPEAKERS B LED drive signal output 4-1. IC PIN DESCRIPTION IC201 PD78044FGF-200-3B9 (SYSTEM CONTROLLER, FL DRIVER) Pin No.Pin NameI/OPin Description STR-DE185 1111 56RY R1 COILOPower relay (12V) drive signal output 57RY POWEROAC power rel

44、ay (9V) drive signal output 58RY AOSpeakers A relay (12V) drive signal output 59RY BOSpeakers B relay (12V) drive signal output 60RY HPOPhones relay (12V) drive signal output 61NCNot used. (Open) 62 to 70S15 to 7OSegment drive signal output to the fluorescent indicator tube (FL201). 71VLOADPower sup

45、ply pin (-24 V) 72 to 77S6 to 1OSegment drive signal output to the fluorescent indicator tube (FL201). 78 to 80DIG10 to 8ODigit drive signal output to the fluorescent indicator tube (FL201). Pin No.Pin NameI/OPin Description 4-2. CIRCUIT BOARDS LOCATION MAIN board OUTLET board POWER SW board HP boar

46、d DISPLAY board STR-DE185 1212 4-3. BLOCK DIAGRAM MAIN SECTION 9 7 5 3 1 1422 49712877 - 72,70 - 627 - 1,80 - 7827262524442354173435 15 4619 18 50 12 10 11 9133736 45 60 58 59 16 56 57 47 135 41 42 43 323112 43 3 IC904 +10V 1 LED DRIVER Q204 LED DRIVER Q206 55 LED DRIVER Q205 KEY MATRIX FL201 FLUORESCENT INDICATOR TUBE 1 REMOTE CONTROL RECEIVER