Sony-STSV7-tun-sm 电路图 维修手册.pdf

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1、SERVICE MANUAL FM STEREO, FM/AM SUPERHETERODYNE TUNER E Model SPECIFICATIONS ST-SV7 Ver 1.0 2001.06 ST-SV7 is the tuner section in MHC-SV7AV. Tuner section FM stereo, FM/AM superheterodyne tuner FM tuner section Tuning range87.5 108.0 MHz AntennaFM lead antenna Antenna terminals75 ohm unbalanced Int

2、ermediate frequency10.7 MHz AM tuner section Tuning range Middle Eastern model: Other models: 531 1,602 kHz (with the interval set at 9 kHz) AntennaAM loop antenna Antenna terminalsExternal antenna terminal Intermediate frequency450 kHz Dimensions (w/h/d)Approx. 280 x 108 x 340 mm MassApprox. 2.1 kg

3、 Design and specifications are subject to change without notice. 531 1,602 kHz (with the interval set at 9 kHz) 530 1,710 kHz (with the interval set at 10 kHz) 9-873-152-01Sony Corporation 2001F0500-1Home Audio Company C 2001.6Shinagawa Tec Service Manual Production Group RadioFans.CN 收音机爱 好者资料库 2 S

4、T-SV7 TABLE OF CONTENTS 1.SERVICING NOTES.2 2.GENERAL Location of Controls .3 Setting the Time .4 3.DISASSEMBLY 3-1.Disassembly Flow .5 3-2.Cover .6 3-3.Front Panel Section .6 3-4.PANEL Board, SIRCS Board .7 3-5.Tuner pack (FM/AM).7 3-6.MAIN Board .8 3-7.DSP Board.8 4.TEST MODE.9 5.DIAGRAMS 5-1.Note

5、 for Printed Wiring Boards and Schematic Diagrams . 10 5-2.Schematic Diagram MAIN Board (1/2) . 12 5-3.Schematic Diagram MAIN Board (2/2) . 13 5-4.Printed Wiring Board MAIN Board . 14 5-5.Printed Wiring Board DSP Board . 15 5-6.Schematic Diagram DSP Board (1/2) . 16 5-7.Schematic Diagram DSP Board (

6、2/2) . 17 5-8.Printed Wiring Boards PANEL Section . 18 5-9.Schematic Diagram PANEL Section . 19 5-10. IC Pin Function Description . 20 6.EXPLODED VIEWS 6-1.Cover, Front Panel Section . 26 6-2.Chassis Section . 27 7.ELECTRICAL PARTS LIST. 28 Notes on chip component replacement Never reuse a disconnec

7、ted chip component. Notice that the minus side of a tantalum capacitor may be dam- aged by heat. 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

8、SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. SECTION 1 SERVICING NOTES This set is a component of the MHC-SV7AV. The MHC-SV7AV system configuration is as shown below, and therefore it does not operate normally unless all four components are conn

9、ected. In performing the repair, connect all components with the system cables. Note: The precaution to the users is described on the label stuck on the back panel (video CD player) and in the troubleshooting section in the Operation Manual. System Configuration: POWER SUPPLY AC IN TA MASTER wa ws w

10、dwfwgwhwj CLOCK/TIMER wh (13, 25, 34) DISPLAY qk (13, 18, 33, 40) ENTER ws (22) IR receptor wj PRESET /+ wd (22) STEREO/MONO ql (22) TIMER SELECT wg (26, 35) TUNER/BAND wf (22) TUNER MEMORY w; (22) TUNING /+ wa (22) RadioFans.CN 收音机爱 好者资料库 4 ST-SV7 Setting the time 1Turn on the system. 2Press CLOCK/

11、TIMER (or CLOCK/TIMER SET on the remote). When you set the time for the first time, proceed to step 5. 3Press O or o repeatedly to select “CLOCK SET”. 4Press ENTER (A/V amplifier or remote). 5Press O or o repeatedly to set the hour. 6Press ENTER (A/V amplifier or remote). 7Press O or o repeatedly to

12、 set the minutes. 8Press ENTER (A/V amplifier or remote). Tip If you have made a mistake or want to change the time, start over from step 2. Note The clock settings are canceled when you disconnect the power cord or if a power failure occurs. x Mm. nNnN O V v Bb X 1 2 3 4 5 wh wj wl ed ea 6 7 9 8 q;

13、 qa qdqs qfqg qj qh qk ql wa w; ws wf wd wg wk es eg ej ek el e; ef eh ra rd rg r; rs rf Remote Control CHECK qd (17) CLEAR qs (17, 19) CLOCK/TIMER SELECT 3 (26, 35) CLOCK/TIMER SET 2 (13, 25, 34) DBFB ej (27) DIGITAL r; (36, 40) DISPLAY rd (13, 18, 33, 40) D.SKIP 9 (14, 16, 20, 21) ENTER wf (11, 13

14、, 15, 17, 21, 22, 25, 26, 3033, 35) EQ wh (31) EQ ON/OFF wa (32) FILE SELECT +/ wd (27, 28, 32) FUNCTION el (10, 1417, 24, 25, 34, 36) GROOVE ek (27) KARAOKE PON qk (33) KEY CONTROL / ql (33) MD rs (36) Numeric buttons 8 (15, 16, 19, 20, 21) ON SCREEN wk (18) PICTURE EFFECT wl (21) PRESET /+, PREV/N

15、EXT ea (14, 15, 20, 22) REPEAT q; (15, 16) RETURN O eg (15) PLAY MODE qa (14, 16, 17, 25) SELECT CD N es (1417, 19, 21) SET UP w; (11, 13, 30, 32, 33) SLEEP 1 (34) SPECIAL MENU e; (19, 20, 21) SPECTRUM ANALYZER rf (33) SUR wj (30) TAPE A nN ef (23) TAPE B nN qf (23, 24) TUNER/BAND ed (22) TUNING /+

16、qh (22) TV CH +/ 7 (10) TV VOL +/ 6 (10) TV /1 4 (10) TV/VIDEO rg (10) VIDEO ra (36) VOL +/ ws BUTTON DESCRIPTIONS /1 (power) 5 X (pause) qj x (stop) qg ./ (go back/go forward) ea m/M (rewind/fast forward) qh O/o/P/p wg 10 eh 5 ST-SV7 This set can be disassembled in the order shown below. 3-1.DISASS

17、EMBLY FLOW SECTION 3 DISASSEMBLY 3-2. COVER (Page 6) 3-3. FRONT PANEL SECTION (Page 6) 3-4. PANEL BOARD, SIRCS BOARD (Page 7) 3-7. DSP BOARD (Page 8) 3-5. TUNER PACK (FM/AM) (Page 7) 3-6. MAIN BOARD (Page 8) SET 6 ST-SV7 3-3.FRONT PANEL SECTION 2three screws (BVTP3 8) 3claw 3two claws 1wire (flat ty

18、pe) (19 core) (CN502) 3two claws 4front panel section Note: Follow the disassembly procedure in the numerical order given. 3-2.COVER 2two screws (case 3 TP2) 3cover 1screw (+BVTT3 6 (S) 2two screws (case 3 TP2) 7 ST-SV7 3-5.TUNER PACK (FM/AM) 3-4.PANEL BOARD, SIRCS BOARD 6SIRCS board 2two screws (BV

19、TP2.6 8) 2four screws (BVTP2.6 8) 4PANEL board 1wire (flat type) (19 core) (CN602) 3two claws 5two claws 3tuner pack (FM/AM) 2two screws (BVTP3 8) 1wire (flat type) (11 core) (CN506) 8 ST-SV7 4screw (BVTP3 8) 2five connectors (CN510, 5031, 5032, 5041, 5042) 1wire (flat type) (23 core) (CN508) 1wire

20、(flat type) (21 core) (CN509) 6MAIN board 1wire (flat type) (19 core) (CN502) 5PC board holder 2connector (CN601) 3three screws (BVTP3 8) 4two screws (BVTP3 8) 1wire (flat type) (23 core) (CN603) 4three screws (BVTP3 8) 3three screws (BVTP3 8) 6DSP board 1wire (flat type) (21 core) (CN602) 2connecto

21、r (CN601) 5PC board holder 3-7.DSP BOARD 3-6.MAIN BOARD 9 ST-SV7 GC Test Mode Enter the GC Test Mode mode Procedure 1: 1.Press the?/1*1 button to turn the power ON. 2.While pressing the both STEREO/MONO and CINEMA STUDIO C*1 buttons, press the CLOCK/TIMER button. 3.LEDs and fluorescent indicator tub

22、e are all turned on of all units. Procedure 2: 1.Press the?/1*1 button to turn the power ON. 2.While pressing the both PLAY MODE*2 andx *2 buttons, press theZ(DISC 1)*2 button. 3.LEDs and fluorescent indicator tube are all turned on of all units. Version Display Mode Procedure: 1.Enter the GC test m

23、ode. 2.Each time the TUNER MEMORY or DISC 1*2 button is pressed, microcomputer or mechanism deck version is displayed of each unit. 3.Press the TUNING + or DISC 3*2 button to detail is displayed the version. Key Check Mode Procedure: 1.Enter the GC test mode. 2.Press the TUNING - or DISC 2*2 button

24、to set the key check mode. 3.In the key check the mode, the fluorescent indicator tube displays “K 0 J 0 V 0” . Each time a button is pressed, “K” value increases. However, once a button is pressed, it is no longer taken into account. VACS Level Display Mode Procedure: 1.Enter the GC test mode. 2.Pr

25、ess the TUNING + or DISC 3*2 button to display VACS level on the fluorescent indicator tube. Segment Check Mode Procedure: 1.Enter the GC test mode. 2.Press the ENTER orx *2 button to set the segment check mode. 3.In the segment check the mode. Each ENTER orx*2 button is pressed, the fluorescent ind

26、icator tube displays is switching variously. Releasing the GC Test Mode To release from this mode, press three buttons in the same manner as entering this mode or disconnect the power cord. Note: Use following buttons in the test mode. no mark: Button of tuner unit (ST-SV7) *1: Button of amplifier u

27、nit (TA-SV7AV) *2: Button of CD unit (MCE-SV7) MC Cold Reset The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer. Procedure 1: 1.Press the?/1*1 button to turn the power ON. 2.While pressing the DIGITAL

28、*1 button, press the DISPLAYbutton. 3.The set is reset, and becomes standby state. Procedure 2: 1.Press the?/1*1 button to turn the power ON. 2.While pressing the both PLAY MODE*2 andx *2 buttons, press theM *2 button. 3.The set is reset, and becomes standby state. MC Hot Reset This mode resets the

29、set with the preset data kept stored in the memory. The hot reset mode functions same as if the power cord is plugged in and out. Procedure 1: 1.Press the?/1*1 button to turn the power ON. 2.While pressing the both STEREO/MONO and CINEMA STUDIO C*1 buttons, press the TIMER SELECTbutton. 3.The set is

30、 reset, and becomes standby state. Procedure 2: 1.Press the?/1*1 button to turn the power ON. 2.While pressing the both PLAY MODE*2 andx*2 buttons, press them *2 button. 3.The set is reset, and becomes standby state. Change-over the AM Tuning Interval (EXCEPT Sauidi Arabia model) The AM tuning inter

31、val can be changed over 9 kHz or 10 kHz. Procedure: 1.Press the?/1*1 button to turn the power ON. 2.Turn the FUNCTION *1 knob to select “TUNER”, and press the TUNER/BAND button to select the BAND “AM”. 3.Press the?/1*1 button to turn the power OFF. 4.While pressing the ENTER button, press the?/1*1 b

32、utton, and the display on the fluorescent indicator tube changes to “AM 9 K STEP” or “AM 10 K STEP”, and thus the tuning interval is changed over. Change-over of VACS ON/OFF 1.Press the?/1*1 button to turn the power ON. 2.While pressing the both STEREO/MONO and CINEMA STUDIO C*1 buttons, press the C

33、INEMA STUDIO B button, and VACS ON/OFF is change over. SECTION 4 TEST MODE 10 ST-SV7 Note on Schematic Diagram: 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 specif

34、ied. f: internal component. 5 : fusible resistor. C : panel designation. 5-1.NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS Note on Printed Wiring Board: X : parts extracted from the component side. Y : parts extracted from the conductor side. : Pattern from the side which enables seeing. (Th

35、e other layers patterns are not indicated.) Indication of transistor. C B These are omitted. E Q B These are omitted. CE Q B These are omitted. CE Q Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. SECTION 5 DIAGRA

36、MS Caution: Pattern face side:Parts on the pattern face side seen from (Conductor Side)the pattern face are indicated. Parts face side:Parts on the parts face side seen from (Component Side)the parts face are indicated. A : B+ Line. B : B Line. Voltages and waveforms are dc with respect to ground un

37、der no-signal (detuned) conditions. no mark : TUNER (FM/AM) () : CD PLAY : AC OFF : Impossible to measure Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal produc- tion tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be no

38、ted due to normal produc- tion tolerances. Signal path. F: TUNER (FM/AM) E: TAPE PLAY G: RECORD J: CD PLAY c: DIGITAL INPUT N: MIC INPUT Abbreviation EA: Saudi Arabia model SP: Singapore model TH: Thailand model Circuit Boards Location DSP board TUNER PACK MAIN board SIRCS board PANEL board ST-SV7 1

39、111 IC Block Diagrams DSP Board IC604LC89056W-E IC605AK4527 38 37 36 23 24 12345 44 89 10 46 17 22 21 20 30352526272829323334 16 45 13 14 15 47 40 41 48 CL 39XSEL CE DI EMPHA AUDIO DISEL DOUT DINO DINI DIN2 6 DGND 7 DVDD 11 AVDD 12 AGND DOSEL0 R VIN LPF CKSEL0 XSTATE 18 DGND 19 DVDD XIN XOUT XMCK XS

40、EL 31 DGND DO CSFLAG F0 F1 F2 VF ERR9P BPSYNC ERROR DATAO DOSEL1 CKOUT BCK LRCK CKSEL1 MODE0 MODE1 42DGND 43DVDD XMODE TIMING MICROCOMPUTER INTERFACE SAMPLING FREQUENCY C BIT DETECT PA/PB DETECT LOCK DETECT INPUT CIRCUIT DATA DEMODULATOR PLL X TAL 1 2 3 4 5 6 7 8 9 10 11 33 32 31 30 29 28 27 26 25 2

41、4 23 12 13 14 15 16 17 18 19 20 21 22 44 43 42 41 40 39 38 37 36 35 34 FORMAT CONVERTER AUDIO INTERFACE INPUT CIRCUIT OUTPUT CIRCUIT LOOP1 LOOP0/SDA/CDTI DIF1/SCL/CCLK DIF0/CSN P/SN MCLK DZF1 AVSS AVDD VREFH VCOM DZF2 RIN+ RIN LIN+ LIN ROUT1 LOUT1 ROUT2 LOUT2 ROUT3 LOUT3 DEM1 DEM0 TVDD DVDD DVSS PDN

42、 ICKS2 ICKS1 ICKS0 CAD1 CAD0 SDOS I2C SMUTE BICK LRCK SDTI1 SDTI2 SDTI3 SDTO DAUX DFS 3.6 Vp-p 354 ns 3.7 Vp-p 74.1 ns 4 Vp-p 354 ns 3.9 Vp-p 22.7 s 3.8 Vp-p 22.7 s 4.6 Vp-p 74.1 ns 2.7 Vp-p 62.5 ns 2.6 Vp-p 30.5 s 3.5 Vp-p 250 ns 4 Vp-p 74.1 ns Waveforms MAIN Board 1 IC501 qa (XCOUT) DSP Board 1 IC

43、601 9 (MCLK1), IC604 w; (XMCK), wa (XOUT) 2 IC501 qd (XOUT) 7 IC601 wl (BCKI2), IC604 qf (BCK) 2 IC601 qf (SCKOUT) 8 IC606 qh (MCLK (I) 6 IC601 wk (LRCKI2), IC604 qg (LRCK) 4 IC601 w; (BCKO), IC605 4 (BCK), IC606 1 (BCK (I) 3 IC601 ql (LRCKO), IC605 5 (LRCK), IC606 3 (LRCK (I) 4.4 Vp-p 88.6 ns 5 IC6

44、01 ws (KFSIO), IC604 qd (CKOUT) PANEL Board 1 IC601 id (XOUT) ST-SV7 1212 12.1 12.1 D552R553C552 R554C553 Q551 IC551 D551 R552R551 D923 D904 D903 D922 C918C903 R912 R911 IC901 C902 C907 C906 IC904 PC7805AHF C905C904C952 C953 L955 470H C966 NO901NO991 C991 C992 C955 R951 C957 NO507 CN508 CN510 C977 C

45、978 C970 C968 R941D941 D942R942 C941 R943 C956 CN5031 CN5041 CN509 Q902 R555 D901 IC952 IC951 C916 R952 D920 C971 C964 IC991 IC903 D924 C551 1SS133T47k0.1 47k0.1 2SC2603 M51943BSL 1SS133T-72 10k470 11ES2 11ES2 11ES2 11ES2 470 10V 10 50V 510 220 TA78057S 470 10V 220 10V 0.1 470 16V 3300 16V 4700 25V

46、0.110000p 3P3P 0.1 0.1 10000p 470 10000p 4P 23P 5P 10 50V 10 50V 10000p 10000p 1k1SS133T 1SS133T1k 10 50V 3.3k 10 50V 5P 10P 21P 2SC2001-K1K2 4.7k D3SBA20 TORX178B TORX178B 10000p 470 11ES2 0.1 0.1 NJM7812FA BA10T RB441Q 10 50V 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 20 AA4 AA5 AA4 AA5 BB1 BB2 BB3 BB4 BB1 BB2 BB3 BB4 DD1 DD2 DD3 DD4 E1 E2 E3 E4 E5 E6 E7 E8 E9 E10 E11 E