Sony-STSDB900-tun-sm 电路图 维修手册.pdf

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1、ST-SDB900 AEP Model UK Model SERVICE MANUAL DAB/FM/AM TUNER Sony Corporation Audio Group 9-879-012-02 2004H02-1 SPECIFICATIONS Ver 1.1 2004.08 Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories. “DTS” and “DTS Digital

2、 Surround” are trademarks of Digital Theater Systems, Inc. DAB tuner section Frequency range174.928 (5A) 239.200 (13F) MHz For details, see “DAB frequency table” below. Sensitivity99 dBm Signal-to-noise ratio97 dB THD+N0.009% (1 kHz) Channel separation87 dB (1 kHz) Selectivity40 dB (at adjacent chan

3、nel) Frequency response+0.5/0.5 dB (5 Hz 20 kHz) Digital outputOptical Sampling frequency: 48 kHz Aerial terminal75 , F female Analog output level2 Vrms FM tuner section Frequency range87.5 108.0 MHz (50 kHz step) IHF Sensitivity1.0 V Signal-to-noise ratioat 40 kHz deviation 70 dB (stereo) THD+N1 kH

4、z, 40 kHz deviation 0.5% (stereo) Channel separation45 dB (1 kHz) Selectivityat 400 kHz 60 dB Frequency response+0.5/2.0 dB (30 Hz 15 kHz) Aerial terminal75 , IEC male AM tuner section Frequency range531 1,602 kHz (9 kHz step) Sensitivity(with AM loop aerial) 330 V/m Signal-to-noise ratio54 dB THD+N

5、0.5% (400 Hz) Selectivityat 9 kHz 35 dB Aerial terminalPush lever General Power requirements230 V AC, 50/60 Hz Power consumption12 W Dimensions430 x 85 x 300 mm (w/h/d) Weight4.5 kg Remote control capabilityIR Station preset capacityDAB maximum of 99 FM maximum of 30 AM maximum of 30 Supplied access

6、ories Audio cord (1) AM loop aerial (1) FM wire aerial (1) DAB wire aerial (1) Remote commander (1) R6 (size AA) batteries (2) Design and specifications are subject to change without notice. RadioFans.CN 收音机爱 好者资料库 ST-SDB900 2 Unleaded solder Boards requiring use of unleaded solder are printed with

7、the lead- free mark (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 40C high

8、er than ordinary 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 350C. Caution: The printed pattern (copper foil) may peel away if the heated tip is ap

9、plied for too long, so be careful! TABLE OF CONTENTS 1.GENERAL.3 2.TEST MODE.4 3.DIAGRAMS 3-1.Block Diagram .9 3-2.Printed Wiring Board MAIN Board (Side A) . 10 3-3.Printed Wiring Board MAIN Board (Side B) . 11 3-4.Schematic Diagram MAIN Board (1/3) . 12 3-5.Schematic Diagram MAIN Board (2/3) . 13 3

10、-6.Schematic Diagram MAIN Board (3/3) . 14 3-7.Printed Wiring Board TRANS, AC SW, JOG, RM Board . 15 3-8.Printed Wiring Board DISPLAY Board . 16 3-9.Schematic Diagram DISPLAY Board . 17 4.EXPLODED VIEWS 4-1.Case, Front Panel Section. 20 4-2.Chassis Section. 21 5.ELECTRICAL PARTS LIST. 22 SAFETY-RELA

11、TED 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 NUM- BERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE- MENTS PUBLISHED BY SONY. Strong

12、 viscosity Unleaded solder is more viscous (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 ordinary solder. Notes on c

13、hip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam- aged by heat. DAB frequency table Band-III (174 to 240 MHz) FrequencyLabelFrequencyLabel 174.928MHz5A209.936MHz10A 176.640MHz5B211.648MHz10B 178.352MHz5C213.360MHz10C 1

14、80.064MHz5D215.072MHz10D 181.936MHz6A216.928MHz11A 183.648MHz6B218.640MHz11B 185.360MHz6C220.352MHz11C 187.072MHz6D222.064MHz11D 188.928MHz7A223.936MHz12A 190.640MHz7B225.648MHz12B 192.352MHz7C227.360MHz12C 194.064MHz7D229.072MHz12D 195.936MHz8A230.784MHz13A 197.648MHz8B232.496MHz13B 199.360MHz8C234

15、.208MHz13C 201.072MHz8D235.776MHz13D 202.928MHz9A237.488MHz13E 204.640MHz9B239.200MHz13F 206.352MHz9C 208.064MHz9D * This tuner does not support L-Band reception. Ver 1.1 Note on DAB TUNER MODULE exchange Since this connector tends to break, be careful of handling. When exchanging DAB TUNER MODULE a

16、nd hard to remove a cable, please also exchange cables together. DAB TUNER MODULE Cable Main board RadioFans.CN 收音机爱 好者资料库 ST-SDB900 3 SECTION 1 GENERALThis section is extracted from instruction manual. Main unit 1 (remote sensor) 2 POWER switch 3 BAND 4 Display window 5 MENU 6 TUNING/SELECT 7 ENTER

17、 8 MEMORY 9 DISPLAY q; TUNING MODE List of button locations and reference pages 2 89 6534 7 1 q; RadioFans.CN 收音机爱 好者资料库 4 ST-SDB900 SECTION 2 TEST MODE 1.Entering test mode 1.Turn OFF the power. 2.While pressing DISPLAY button and MENU button together, turn ON the POWER button. 3.When test mode sta

18、rts “DIAG MENU” is displayed for a few seconds, then test mode starts. 2.Leaving test mode 1.Turn OFF the power. 3.Selecting the test mode When you enter test mode, if you turn the TUNING/SELECT JOG dial, this switches the display to the test menu. 3-1.Restoring the factory settings 1.Enter test mod

19、e, then turn the TUNING/SELECT dial to display “FACTORY RESET”. Screen display 2.Press the ENTER button. The “Executing” display. Screen display 3.After 3-4 seconds, the “Executing” disappears. Factory Reset is completed. Screen display Contents of factory settings BAND. DAB DAB Module . Service Lis

20、t Clear . DRC Off . DAB preset all clear FM Mode. STEREO 30 FM Preset . All 87.50 MHz 30 AM Preset . All 531 kHz Preset Station Name. All clear DIMMER Full (duty 100) FACTORY RESET FACTORY RESET TUNING/SELECT TUNING/SELECT FL/KEY TEST dial dial VERSION Version display Fluorescent lamp display and bu

21、tton test Restores the factory settings FACTORY RESET FACTORY RESET Executing FACTORY RESET 5 ST-SDB900 3-2.FL/KEY TEST MODE 1.Enter test mode, then turn the TUNING/SELECT dial to display “FL/KEY TEST”. Screen display 2.Press the ENTER button. The entire screen lights up. Screen display 3.Turning th

22、e TUNING/SELECT dial displays the dial check screen. When you turn the TUNING/SELECT dial left and right, the character display moves left and right. Screen display 4.To check operation of each button, press it and verify that the corresponding display goes out. BAND button. “TP” display TUNING MODE

23、 button. “MONO” display DISPLAY button . “DRC” display MENU button . “TUNED” display ENTER button . “PRESET” display MEMORY button. “PTY” display 5.Press the DAB button on remote control after checking front panel button, “O” and “K” light up on a character display. 6.Turn OFF the power. 3-3.VERSION

24、 display 1.Enter test mode, then turn the TUNING/SELECT dial to display “VERSION”. Screen display 2.Press the ENTER button. The System Version is displayed. Screen display 3.Turn the TUNING/SELECT to the right to display the DAB version. Screen display Turn the TUNING/SELECT dial to the left to disp

25、lay the System Version. 4.Press the ENTER button to return to test mode. FL / KEY TEST SECONDARYRDS TPSTEREOMONOTUNEDPTYMEMORY DAB FM AM MANUALPRESETAUTODUAL DRC TP MONOTUNEDPTY DAB AM PRESETDRC Character display VERSION VERSION sys v1.03 4415 Syscon Firmware Version Check sum VERSION dev v1.8 - 3 D

26、AB Module Firmware Version 6 ST-SDB900 4.Temporary PRESET setting mode This device is not adjusted but reception can be checked with the temporary Preset values. 1.Turn OFF the power. 2.While pressing DISPLAY button and MEMORY button together, turn ON POWER button. 3.When you enter temporary PRESET

27、setting mode, the “MEMORY” display flashes. The only difference in this mode is the use of the temporary Preset values. Otherwise, operation is normal. 4.For the FM and AM band, the PRESET values are as follows. 5.For the DAB band, there are no temporary Preset values. Instead, the CH labels handle

28、this with “MENU” - “DAB TUNE AID” as follows. 6.End temporary PRESET mode with a Power OFF. FM bandAM band FM0187.50 MHzAM01531 kHz FM0288.00 MHzAM02603 kHz FM0398.00 MHzAM03999 kHz FM04100.00 MHzAM041404 kHz FM05106.00 MHzAM051602 kHz FM06108.00 MHz DAB band 5A(174.928 MHz) 5B(176.640 MHz) 8D(201.0

29、72 MHz) 12B(225.648 MHz) 13F(239.200 MHz) 7 ST-SDB900 SECTION 3 DIAGRAMS Circuit Boards Location RM board DISPLAY board JOG board tuner unit DAB tuner module MAIN board TRANS board AC SW board 8 ST-SDB900 Waveforms Note on Schematic Diagram: All capacitors are in F unless otherwise noted. (p: pF) 50

30、 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. f: internal component. 2 : nonflammable resistor. C : panel designation. A : B+ Line. B : B Line. Voltages and waveforms are dc with respec

31、t to ground un- der no-signal conditions. No mark : FM Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. Circled numb

32、ers refer to waveforms. Signal path. F: FM g: ANALOG OUT I: DIGITAL OUT NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS (In addition to this necessary note is printed in each block.) Note on Printed Wiring Board: X : parts extracted from the component side. a: Through hole. : Pattern from the

33、side which enables seeing. Caution: Pattern face side: Parts on the parts face side seen from (Side A)the parts face are indicated. Parts face side:Parts on the pattern face side seen from (Side B)the pattern face are indicated. Note: The components identified by mark 0 or dotted line with mark 0 ar

34、e critical for safety. Replace only with part number specified. MAIN Board 1.8432 MHz 2V AC/DIV 0.2 sec/DIV 4.5 Vp-p 1 IC300 wl SCKO 16 MHz 0.5V AC/DIV 50nsec/DIV 1 Vp-p 2 IC300 is XO 99 ST-SDB900 ST-SDB900 3-1.BLOCK DIAGRAM DAB MODULE AUDIO_LEFT_OUT AUDIO_RIGHT_OUT Q151, D101-103 OR GATE SPDIF S1_I

35、N S1_DOUT DAB_OUT DAB_IN AM AC_STOP 86 EEPROM IC301 IC401 MUTE Q200 MUTE Q250 L R J201 ANALOG OUT DAB DIGITAL OPTICAL OUT 59FL-DATA 53 IC300 SYSTEM CONTROL 52 43 75 74 DAB_IO128 DAB_IO227 DAB_OUT DAB_IN FLASH1 AC_STOP X_L_MUTING 85 RSTX77 SDA34 X082 X183 SCL33 X301 16MHz 5 6 54SIRCS 60FL CLK 63FL-CS

36、1 62FL-CS0 61 FL RST IC800 FL DRIVER DA63 CP62 CS61 RESET60 4AD1 3AD2 P36-70 P1-35 5 39 40 55 SEG1 SEG35 COM1 COM16 FLUORESCENT INDICATOR TUBE NC FL800 IC801 FL DRIVER DA63 CP62 CS61 RESET60 4AD1 3AD2 5 39 SEG1 SEG35 FF1 FF2 SIRCS IC802 1 38KEY_AD0 39KEY_AD1 55KEY3 FUNCTION KEY ROTARY ENCORDER RV801

37、 S831-833 D201 AC IN S901 POWER -30V REG Q912 IC907 +5V REG 54 FL -30V D922-924 Q909 54 AC DETECT IC912 D918 AU -6V RECT D901-904 IC901 +10V REG 13 D919 FM+3.3V D+3.3V IC903 -6V REG23 RECT D911 T901 AU +6V FM +10V T902 MUTE +3.3V POWER CONTROL Q910,911 30DAB_PWR 48 AC_STOP : DIGITAL OUT : FM Signal

38、path : ANALOG OUT GATE IC403 P36 P71 P72 G1-16 66JOG_P 67JOG_M S841-843 RECT D914-916 Q910 FMAM +3.3V DAB +5V POWER CONTROL Q906,908 31DAB_PWR5 IC910 +3.3V REG 23 D913 IC911 +3.3V REG 12 1 Q202BUFFER IC200 Q201 4 DABSEL 4 12 13 3 5 11 9 LPF IC202 AMP IC203 FM COAXIAL 75 FM/AM TUNER ANTENA LCH RCH CE

39、 TUNED STEREO MUTING FM_S-METER RDS_INT RDS_DATA SLATCH TUNED STEREO TU_MUTING S-METER RDS_INT RDS_DATA DAB COAXIAL 75 ANTENA CL DO DI TUN_CLK TUN_DIO2 TUN_DIO1 73 78 14 76 15 SLATCH TUNED STEREO TU_MUTING S-METER RDS_INT RDS_DATA TUN_CLK TUN_DIO2 TUN_DIO1 SLATCH TUNED STEREO TU_MUTING FM_SIG_OUT RD

40、S_INT RDS_DATA TUN_CLK TUN_DIO2 TUN_DIO1 D +3.3V IC100 RESET 21 1 2 3 6 7 8 FLASH2 RESET MD0 MD251 49MD0 MD2 FLASH2 FLASH1 FLASH1 FLASH2 WP327 SDA SCL WP X183 X302 1.8432MHz 2 POWER TRNSFORMER IC902 +6V REG13 14 IC201 SELECTOR DIGITAL TRNSMITTER CN306 FLASH PROGRAM TUNING/ SELECT REMOTE SENSOR D930

41、1010 ST-SDB900 ST-SDB900 3-2.PRINTED WIRING BOARD MAIN BOARD (SIDE A) See page 7 for Circuit Boards Location. :Uses unleaded solder. C410 X301 R9067 R9066 R608 R392 R391 R378 R376 R374 R373 R353 R352 R351 R350 R349 R346 R344 R343 R331 R329 R302 R301 R335 R106 R105 IC300 IC100 FB377 FB329 FB301 FB101

42、 FB100 R217 X302 C912 C382 C381 C367 C366 C351 C349 C377 C343 C335 C323 130 80 31 45 51 31 50 100 81 C302 C107 C108 C109 C113 C114 Q201 R904 R903 Q911 Q910 EE Q908 Q906 IC403 D918 D930 D910 IC201 R403 13 54 FB300 C105 Q202 CN300 12 3 4 MAIN BOARD (SIDE A) 11 (11) 1-862-510- 18 169 E E E E 23456789 A

43、 1 B C D E F G H Semiconductor Location Ref. No.Location D910B-2 D918B-2 D930B-3 IC100F-2 IC201D-7 IC300F-2 IC403F-8 Q201D-8 Q202F-8 Q910E-3 Q911E-3 Q906E-5 Q908E-8 1111 ST-SDB900 ST-SDB900 3-3.PRINTED WIRING BOARD MAIN BOARD (SIDE B) See page 7 for Circuit Boards Location. :Uses unleaded solder. 1

44、117 17 216 1 1 2 1 2 1 14 15 44 43 4 8 8 5 1 12 1 1 2 2 8 13 14 85 14 85 1 1 4 85 5 14 1 13 1313 13 C939 C940 R116 C110 C336 R339 R363 R362 R398 C327 R332 R115 C354 R361 R360 R359 R345 R390 C339 R336 C333 R334 R333 C328 R314 R375 R340 R114 R113 C102 R109 C130 D201 C332 C348 R110 R328 R9064 C338 R338

45、 FB348 IC301 R399 R327 C337 C100 C128 C127 C126 R315 R111 FB102 C112 C111 C129 FB103 C926E R211 R914 D913 R911 D909 R916 R908 Q912 R260 C221 R917 D904 C923 D923 R401 C409 R918 D915 C921 R210 C929 C928 D922 C916 R250 D917 D916 D911 R921 D914 C918 R261 D903 D902 D901 D102 D103 R263 Q151 D104 D908 R920

46、 IC912 C919 R907 D912 C408 R919 R910 D924 R913 R912 D919 D101 IC200 IC202 IC203 D105 C401 R265 R266 R214 R258R255 R200 R259 R254 R253 R216 R202 R257 Q250 R215 R206 R208R205 R201 R209 R204R203 R256 R264 R252 Q200 E E E R251 R207 L400 C938 C937 C941 C942 C943 MAIN C902 J202 C410 C260 C210 X301 C925 G2

47、01 G102 G101 CN906 CN304 CN301 C933 C901 CN907 CN908 T902 C935C936 R906 G902 C201 C202 C203 C204 C205C206 C207 C208 C211 C250 C251 C252 C253 C254 C255 C258 C259 C261 IC911 IC910 IC907 IC903 IC902 IC901 G901 C200 C619 CN306 J203 C934 C931 C930 C920 C917 C915 C914 C913 C908 C907 C906 C905 C904C903 C618 IC401 J201 G903 CN904 C131 C927 C909 C209 G202 C132 C924C922 CN300 HEAT_SINK 3-309-144-42 TERM