Sony-ST-D777ES-Service-Manual电路原理图.pdf

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1、ST-D777ES AEP Model UK Model SERVICE MANUAL DAB/FM/AM TUNER SPECIFICATIONS DAB tuner section Frequency range174.928 (5A) - 239.200 (13F) MHz 1452.960 (L1) - 1490.624 (L23) MHz Sensitivity6.9 V/28 dBf Signal-to-noise ratio100 dB THD+N0.005 % (1 kHz) Channel separation90 dB (1 kHz) Selectivity35 dB (a

2、t adjacent channel) Frequency response+0.2/-0.3 dB (5 Hz - 20 kHz) DA converterPulse D/A S-TACT128 Digital filterVC24 (only for DAB analog output) Digital outputTerminals: Coaxial and Optical Sampling frequncy: 48 kHz RDI outputOptical Aerial terminal75 , F female FM tuner section Frequency range87.

3、5 - 108.0 MHz Sensitivityat 40 kHz derivation at 26 dB quieting (mono) 0.9 V/10.3 dBf at 46 dB quieting (stereo) 23 V/38.5 dBf Signal-to-noise ratioat 40 kHz derivation 80 dB (mono), 76 dB (stereo) THD+N1 kHz, 40 kHz derivation WIDE 0.035 % (mono), 0.045 % (stereo) Channel separation50 dB (1 kHz) WI

4、DE Selectivityat 400 kHz WIDE 85 dB NARROW 90 dB Frequency respose+0.2/-0.3 dB (30 Hz - 15 kHz) Aerial terminal75, IEC male AM tuner section Frequency rangeMW: 522 - 1,611 kHz (9 kHz step) LW: 144 - 288 kHz (1 kHz step: Manual tuning) (3 kHz step: Automatic tuning) Sensitivity(with AM loop aerial) M

5、W: 200 V/m LW: 700 V/m Signal-to-noise ratioMW: 54 dB (50 mV/m, 999 kHz) LW: 50 dB (50 mV/m, 216 kHz) Harmonic distortion0.3 % Sensitivity50 dB Aerial terminalPush lever General Power requirements230 V, AC 50/60 Hz Power consumption20 W Dimensions430 97.5 374 mm (w/h/d) Weight6.2 kg Remote control c

6、apability IR Station preset capacitymax. 99 (DAB, FM and AM total) Supplied accessories Audio cord (1) AM loop aerial (1) FM wire aerial (1) DAB wire aerial (1) Remote commander (1) R6 (size AA) baatteries (2) Design and specifications are subject to change without notice. RadioFans.CN 收音机爱 好者资料库 2

7、TABLE OF CONTENTS 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

8、PUBLISHED BY SONY. 1.GENERAL3 2.TEST MODE 12 3.ELECTRICAL ADJUSTMENTS 14 4.DIAGRAMS 17 4-1. BLOCK DIAGRAM 17 4-2. CIRCUIT BOARDS LOCATION 18 4-3. PRINTED WIRING BOARD MAIN SECTION 19 4-4. SCHEMATIC DIAGRAM MAIN SECTION (1/4) 20 4-5. SCHEMATIC DIAGRAM MAIN SECTION (2/4) 21 4-6. SCHEMATIC DIAGRAM MAIN

9、 SECTION (3/4) 22 4-7. SCHEMATIC DIAGRAM MAIN SECTION (4/4) 23 4-8. SCHEMATIC DIAGRAM DISPLAY SECTION 24 4-9. PRINTED WIRING BOARD DISPLAY SECTION 25 4-10. SCHEMATIC DIAGRAM POWER SECTION 26 4-11. PRINTED WIRING BOARD POWER SECTION 27 4-12. IC PIN FUNCTION DESCRIPTION 28 4-13. IC BLOCK DIAGRAMS 31 5

10、.EXPLODED VIEWS 34 5-1. FRONT PANEL SECTION 34 5-2. MAIN SECTION 35 6.ELECTRICAL PARTS LIST 36 SERVICE POSITION The service position of the MAIN board is the state in which the back-panel is removed and the MAIN board is swing-raised by 90 . (An insulating material is necessary to prevent the machin

11、e from shorting.) Insulating material MAIN board RadioFans.CN 收音机爱 好者资料库 3 SECTION 1 GENERAL FRONT PANEL REAR PANEL 1234 8 765 9 qdqa 0qsqf qg 1 2 345678 1?/1 switch 2DAB button 3FM button 4AM button 5TUNING MODE button 6PTY button 7TUNING/SELECT button 8MENU button 9ENTER button 0MEMORY button qaCH

12、ARACTER button qsMONO/SC button qdDISPLAY MODE button qfEON button qgDISPLAY button 1DAB RDI OUT OPTICAL jack 2DAB DIGITAL OUT COAXIAL jack 3DAB DIGITAL OUT OPTICAL jack 4ANTENNA DAB jack 5ANTENNA FM jack 6ANTENNA AM terminal 7ANALOG OUT jack 8POWER cord 4 This section is extracted from instruction

13、manual. 5 6 7 8 9 10 11 12 2. Entering the Factory Preset (In case perform just to write memory of the Factory Preset.) 1.Turn OFF the power. 2.While pressing ENTER and DAB together, turn ON POWER . 3. Microprocessor Version Display Mode 1.Turn off the power. 2.While pressing MENU and AM together, t

14、urn ON POWER . 3.The version and the date of the microprocessor are displayed. 4.Press the ENTER button to end this mode. SECTION 2 TEST MODE DAB FM AM 1. Display Tube Check and KEY Check mode 1.Turn OFF the power. 2.While pressing DISPLAY and MENU together, turn ON POWER . 3.Display tube all lit. 4

15、.Each time the button is pressed, the key number is counted down. After all the 14 buttons are pressed, “OK” appears. When the DAB, FM or AM button is pressed only, the following display appears. 5.The two eighth notes are moved from the left to the right by turning the TUNING/SELECT dial clockwise.

16、 The notes are moved from the right to the left by turning the dial counterclockwise. 13 DAB error rate display Press DAB and CHARACTER at the same time under the DAB tuned condition. (When the software version is 1.04, press DAB ten times while CHARACTER is kept pressed.) The bit error rate is disp

17、layed. 1: PIC error rate 2: MSC error rate 3: Bit rate 4: In case of audio service F : 48 kHz sampling H : 24 kHz sampling In case of data service S : stream data F : FIDC P : pocket data 5: DAB decoder status information Check the contents in binary notation. Bit 7: not used Bit 6: 1 when AFC is co

18、nverged. Bits 5 to 3 : The number of CRC errors during MPEG decode Bit 2: 1 when initial pulling-in is complete. Bits 1, 0: Contents of DAB frame length judgment Audio information display (DAB only) Press DISPLAY and ENTER at the same time under the DAB tuned condition. Audio information for service

19、 that is selected at present is displayed. 1: Bit rate 2: Audio contents stereo= stereo broadcast joint= joint stereo broadcast dual= dual channel broadcast single= single channel broadcast stream = stream data broadcast FIDC= FIDC data broadcast Packet= packet data broadcast 3: Sampling frequency 4

20、: Protection level 5: Transmission mode 2 5 6 k b p s 4 8 k H z s t e r e o P L v 2 m o d e 1 1 345 2 F : 0 . 0 0 E + 0 0 M : 0 . 0 0 E + 0 0 2 5 6 F S T : C 5 1 5 4 2 3 Bit 1 0 0 1 1 Frame length 96 ms 48 ms 24 ms Judgment impossible Bit 0 1 0 0 1 14 FM Discriminator ADJUSTMENT (NULL and MONO Disto

21、rtion Adjustment) Setting: Procedure: 1.Tune the set to 98 MHz. 2.Adjust IFT202 for 0V reading on the digital voltmeter. . NULL 3.Adjust IFT203 for a minimum reading on the distortion meter. . MONO Distortion (THD) 4.Repeat the adjustments of 2 and 3 several times. Note : When replacing the ceramic

22、filter, perform this alignment. SECTION 3 ELECTRICAL ADJUSTMENTS Precautions in Repairing If the front end unit fails, it is difficult to repair the inner circuits, so replace the entire front end unit. Standard Setting of FM Stereo RF Signal Generator. FM SECTION0dB = 1V set FM RF SSG 1kHz highpass

23、 filter distortion meter FM ANTENNA (75)LINE OUT STEREO STANDARD SIGNAL MONAURAL STANDARD SIGNAL Carrier frequency : 98MHz Modulation : Audio 1kHz Main channel (L+R) : 33.75kHz deviation Sub channel (LR): 33.75kHz deviation Pilot: 7.5kHz Deviation Carrier frequency : 98MHz Modulation : Audio 1kHz 75

24、kHz deviation set FM RF SSG 1kHz highpass filter distortion meter FM ANTENNA (75) Modulation : Monaural Standard signal Output level : 6mV (76dB) (at 75 open) LINE OUT Digital Voltmeter (DC range) TP201 NULL terminal All the settings are performed in the Factory Preset state. (Refer to page 13.) 15

25、Stereo and Tuned Level Adjustment Setting: Procedure: 1.Tune the set to 98 MHz. 2.Adjust RV203 to the point (moment) when the “STEREO” and “TUNED” indicators will change from going off to going on. FM Signal Level Adjustment Setting: Procedure: 1.Tune the set to 98 MHz. 2.Press DISPLAY button to dis

26、play the digital signal, then adjust RV202 to be display as “Signal 70dB”. set FM RF SSG FM ANTENNA (75) Modulation : Stereo Standard signal Output level : 18V (25dB) (at 75 open) set FM RF SSG FM ANTENNA (75) Modulation : Stereo Standard signal Output level : 3mV (76dB) (at 75 open) Stereo Separati

27、on Adjustment Setting: Procedure: L-CH Stereo separation : A B R-CH Stereo separation : C D The separations of both channels should be equal. set FM RF SSG FM ANTENNA (75)LINE OUT level meter Modulation : Stereo Standard signal Output level : 6mV (76dB) (at 75 open) FM stereo Signal generator Output

28、 channel L-CH R-CH R-CH L-CH Level meter connection L-CH L-CH R-CH R-CH Level meter reading (dB) A B Adjust RV301 for minimum reading on Level meter C D Adjust RV301 for minimum reading on Level meter 16 AM SECTION AM Tuned Level Adjustment Setting: Procedure: 1.Set AM RF signal generator so that th

29、e AM antenna input level becomes 74dB/m. 2.Adjust the position of RV201 so that “ TUNED” lights. Adjustment Location MAIN BOARD Component Side AM RF SSG loop antenna set loop antenna (Supplied accessories) 60 cm AM antenna terminal (TM1) 30% amplitude modulation by 400 Hz signal Carrier frequency :

30、216kHz Modulation : AUDIO 400Hz, 30% modulation Field strength dB (V/m) =SSG output level dB (V/m) 26 dB. CN702 111 CN701 114 CN704 1 15 RV301 Stereo Separation RV202 FM Signal Level RV201 AM Tuned Level TP201 RV203 FM Stereo/Tuned Level IFT202 (NULL) IFT203 (THD) IFT202, 203 FM Discriminator FE202

31、FE101 ST-D777ES 1717 SECTION 4 DIAGRAMS 4-1. BLOCK DIAGRAM 3G +5V REG 31 IC110 +B4(9V) +B3(9V) FE101 DAB FRONTEND IC101 IF OUT NUL +B2(5V) +B1(5V) +B5(5V) 75 IC102 CH116DATA 4BCLK 5LRCK AFC CONTROL IC103 AFC SDA SCL SDA SCL DAB+9V DRAM IC105 24 25 2 . . . 1 9 12 14 18 5 . 9 . . 47 44 41 43 50 . 51 .

32、 . 54 . 59 60 57 . . . 58 4RAS 23CAS 3WE 22OE NRRAS55 NRCAS53 NRAWME56 NRAMOE52 CTL DATA73 CTL CLK72 CTL LR71 RDT0 RDT3 RAD0 RAD9 A0 A9 DQ1 DQ4 VREF83 AD IN80 NUL DET77 DAB DECODER IC104 16DA OUT 29RDI OUT 21SDAT 20SCLK 19SLRCK 14MCLK2 13VDD0 31VDD1 49VDD2 75VDD3 DATAI48 BCKI49 LRCKI50 LVCKO145 CKVD

33、D37 DATAVDD54 DINIT40 Q501 AVDDL14 AVDDL25 AVDDR121 AVDDR220 CTLVDD36 XVDD11 VDD55 VDD78 +3.3V REG 31 IC106 DAB+5V 82AVDD 6MPU MOD 5MPU TX 4MPU RX 3MPU CLK 2MPADRDY 1MPU SYNC 11NRST MPU MOD MPU TX MPU RX MPU CLK MPADRDY MPU SYNC NRST DIGITAL FILTER IC501 8NSDOL1 6NSDOL2 3NSDOL3 1NSDOL4 17NSDOR1 19NS

34、DOR2 22NSDOR3 24NSDOR4 13XIN 1064FSI 29SYSM 30INIT 31LATCH 32SHIFT 33SC DATA DF DA DF CLK DF CE DA RST DA MUTE D/A CONV IC502 NSDTIL156 NSDTIL257 NSDTIL358 NSDTIL459 NSDTIR149 NSDTIR248 NSDTIR347 NSDTIR446 CS12FSO51 NSBCK054 MUTE39 79L1(+) 76L1(-) 2L2(+) 5L2(-) 26R1(+) 29R1(-) 23R2(+) 20R2(-) IC505

35、IC507 IC507 IC505 LINE AMP IC506 IC508 IC508 IC506 10XVDD 74AVDDPL1 75AVDDML1 7AVDDPL2 6AVDDML2 31AVDDPR1 30AVDDMR1 18AVDDPR2 19AVDDMR2 13XIN +5V REG 31 IC503 DAB+12V X501 49.152M +5V REG 13 IC504 FM TM201 AM RELAY DRIVE Q201 RY201 +B SWITCH Q210,212 AM+12VFMAM+12V Q208 AM FRONTEND Q203 Q204 MW/LW S

36、WITCH Q205 RF AMP Q202 59 3 19 18 20 10 IF AMP Q206 13 16 15 CF201 450kHz IFT201 AM RF/IF AMP IC202 AM METER LEVEL RV201 FE201 IFIN12 IFREQ11 AMIN14 MW/LW9 AOUT117 AIN118 PD119 FM/AM8 ATT7 AOUT222 AIN221 PD222 FMIN15 PLL IC201 FMAM+12VIF OUT OSC OUT VT +B ANT FM FRONTEND FE202 EEPROM IC602 IF AMP Q2

37、07,209 CF202 10.7MHz IF AMP Q211,213 CF203 10.7MHz IF AMP Q214 CF204 10.7MHz IF AMP Q215,216 CF205 10.7MHz 10NA/WD 6DO 4DI 5CL 3CE AP DO AP DI AP CL AP CE 13MONO FM/IF AMP IC203 1 15 STEREO LEVEL RV203 FM METER LEVEL RV207 13 12 8 IF AMP Q302 6 Q401 T201 AM+12V Q301 FM2 AM1 5L1 6L2 8R1 7R2 4 13ST ST

38、EREO SPARATION RV301 FM MPX IC301 VDD21 CF301 456kHz SDA SCL LPF302 LPF IC302 MUTE Q304,306LPF302 LPF IC302 MUTE Q303,305 IC108 IC109 MUTE Q502 RY501 MUTE Q504FMAM+12V L R PJ501 ANALOG OUT DAB DIGITAL OUT (OPTICAL) DAB DIGITAL OUT (COAXIAL) DAB RDI OUT (OPTICAL) 79FL DA DA MUTE77 IC601 SYSTEM CONTRO

39、L DA RST76 DF CF75 DF CL74 DF DA73 NRST90 DA MUTE DA RST DF CF DF CL DF DA MPU SYNC94 MPADRDY95 MPU CLK88 MPU RX86 MPU TX87 MPU MOD89 DP SDA31 NRST MPU SYNC MPADRDY MPU CLK MPU RX MPU TX MPU MOD 1110IC603 DP SCL32 1312IC603 12 IC603 STEREO47 4 1314 2 16 X401 4.332MHz RDS IC401 A STP46 RD DO85 RD CL8

40、4 SDA29 XTAL66 VCO17 AP CE37 AP DI34 AP CL36 AP DO35 34 56 AP CE AP DI AP CL AP DO SIGNAL52 EXTAL68 SCL30 X601 10MHz 5 6 16 50SIRCS 81FL CLK 82FL ENB1 83FL ENB2 78FL RST IC802 FL DRIVER DA63 CP62 CS61 RESET60 4AD1 3AD2 BUFFER Q803,804 5 39 40 55 SEG1 SEG35 COM1 COM16 BUFFER Q805,806 16G FL801 IC803

41、FL DRIVER DA63 CP62 CS61 RESET60 4AD1 3AD2 BUFFER Q801,802 5 39 SEG1 SEG35 FF1FF2 SIRCS IC801 23 53KEY1 +3.3V 54KEY2 55KEY3 FUNCTION KEY ROTARY ENCORDER RV801 S801-813 T901 D906 FF1 FF2 AC IN S901 POWER -30V REG Q912,913 IC906 +5V REG 23 -30V 5V SW Q908 SWITCH Q909 58 3 6 POWER CONT IC906 3.3V SW Q9

42、10 FMAM +5V DAB +5V +3.3V D901-904 IC901 +12V REG 23 -12V SW Q907 -12V DAB -12V IC903 -12V REG 23 Q906 +12V SW Q903 SWITCH Q904 +12V SW Q902 FMAM +12VV DAB +12V SWITCH Q901 D905 IC902 +9V REG 53 4 2 DAB +9V POWER CONTROL Q905 96DAB/FMAM 63POWER RESET Q911 62RESET 98 IC603 MUTE CONTROL Q503 AF MUTE72

43、 : DIGITAL OUT Signal Path : FM : ANALOG OUT 12 IC107 J101 1818 4-2. CIRCUIT BOARDS LOCATION Waveforms MAIN board U : B+ Line. V : B Line. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM ( ) : MW : LW : Impossible to measure Voltages are taken

44、with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tol- erances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tol- erances. Circled numbers refer to waveforms. Signal path. F: FM f: AM For printed wiring bo

45、ards. Note: X : parts extracted from the component side. b : Pattern from the side which enables seeing. Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Indication of transistor C These are omitted EB THIS NOTE IS

46、 COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) For schematic 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

47、in and 1/4 W or less unless otherwise speci- fied. f: internal component. C : panel designation AC SW board KEY SW board POWER board DISPLAY board ENCODER board MAIN board 1 IC201 wf 4.6Vp-p 222.2ns 2 IC401 qf 2.2Vp-p 230.8ns 3 IC501 rg 3.3Vp-p 40.7ns 4 IC502 qd 6.0Vp-p 20.3ns 5 IC502 ta 5.6Vp-p 40.

48、7ns 6 IC502 tf 6.0Vp-p 162.7ns 7 IC601 yk 3.5Vp-p 100.0ns ST-D777ES 1919 4-3. PRINTED WIRING BOARD MAIN SECTION Ref. No.Location D201E-2 D202C-9 D203D-9 D204E-7 D301E-9 D302C-5 D501B-4 D502B-4 D503B-3 D601D-12 D602B-11 IC101H-4 IC102H-2 IC103H-3 IC104I-3 IC105J-5 IC106I-5 IC107I-2 IC108I-2 IC109J-2

49、IC110H-6 IC201E-3 IC202C-8 IC203E-7 IC301C-5 IC302C-3 IC401E-8 IC501I-6 IC502I-9 IC503G-9 IC504G-9 IC505J-11 IC506H-11 IC507J-12 IC508H-12 IC601C-12 IC602D-12 IC603E-11 Q201E-2 Q202D-6 Q203C-6 Q204C-7 Q205D-7 Q206C-9 Q207G-5 Q208E-4 Q209F-5 Q210F-5 Q211G-6 Q212F-5 Q213F-6 Q214F-6 Q215E-5 Q216E-6 Q301D-9 Q302F-9 Q303C-2 Q304D-2 Q305C-2 Q306D-2 Q401E-7 Q501I-7 Q502B-3 Q503B-4 Q504B-3 Semiconductor Location (Page 27)(Page 27) (Page 25) 12 A B C D E F G H I J K 345