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Sony ST-S3000ES Service Manual

Sony ST-S3000ES Service Manual

Fm stereo fm-am tuner
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ST-S3000ES
SERVICE MANUAL
AEP Model
SPECIFICATIONS
FM STEREO FM-AM TUNER
MICROFILM
— 1 —

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Summary of Contents for Sony ST-S3000ES

  • Page 1 ST-S3000ES SERVICE MANUAL AEP Model SPECIFICATIONS FM STEREO FM-AM TUNER MICROFILM — 1 —...
  • Page 2 REPLACE THESE COMPONENTS WITH SONY PARTS 3. ELECTRICAL ADJUSTMENT ........4 WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. 4. DIAGRAMS 4-1. Waveforms ................7 4-2. IC Block Diagrams ............. 8 4-3. Schematic Diagram — Main Section — ......9 4-4.
  • Page 3 SECTION 2 TEST MODE 1. Circuit Check Mode Set to the reception frequency that the circuit can STEREO RDS stations. (Set the input level to above 70 dB.) This enables circuit check to be performed in any of the reception modes-FM, AM (MW, LW). Set to a desired band before setting the test mode.
  • Page 4 4. Release ENTER and RETURN . The KEY CHECK mode will be set. 5. All key numbers will be displayed. Key Number : 12 6. Each time the key is pressed, the key number will be counted down. Each key will be counted only once, at the first time. 7.
  • Page 5 FM Discriminator ADJUSTMENT Procedure : (NULL and MONO Distortion Adjustment) 1. Tune the set to 98 MHz. 2. Set “IF BAND : NARROW” according to the procedure of “How Setting : to switch IF BAND WIDE/NARROW” on page 6. IF BAND : WIDE 3.
  • Page 6 AM SECTION AM Meter Level Adjustment Setting : BAND : LW loop antenna (Supplied accessories) loop antenna AM RF SSG AM antenna 60cm terminal (TM1) 30% amplitude modulation by Field strength dB (µV/m) = SSG output level dB (µV/m) –26dB. 400Hz signal Carrier frequency: 216kHz Modulation: AUDIO 400Hz, 30% modulation...
  • Page 7 SECTION 4 DIAGRAMS 4-2. IC BLOCK DIAGRAMS THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS 4-1. WAVEFORMS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each IC221, 251 LA1235 IC401 LA1245 MAIN SECTION block.) NOTE (IF) 3.2Vp-p MUTING...
  • Page 14 4-9. IC PIN FUNCTION • IC701 SYSTEM CONTROL (uPD780205GF) Pin No. Function Pin No. Pin Name Function Pin Name — IS 5 Power supply (+5V). — IS 4 Not used. Model detection. — Not used. IS 3 BAND1 — IS 2 Not used.
  • Page 15 SECTION 5 EXPLODED VIEWS NOTE: The components identified by mark ! • Items marked “*” are not stocked since they are or dotted line with mark ! are critical seldom required for routine service. Some delay for safety. should be anticipated when ordering these items. Replace only with part number •...
  • Page 16 SECTION 6 AC.SW DISPLAY ELECTRICAL PARTS LIST Note: • SEMICONDUCTORS • Due to standardization, replacements in the parts list The components identified by mark ! may be different from the parts specified in the In each case, u: µ , for example: or dotted line with mark ! are critical uA...: µ...
  • Page 17 DISPLAY MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R736 1-249-413-11 CARBON 1/4W F C253 1-162-306-11 CERAMIC 0.01uF R737 1-249-413-11 CARBON 1/4W F C254 1-117-793-11 MYLAR 330PF R738 1-249-413-11 CARBON 1/4W F C255 1-130-467-00 MYLAR 470PF R739 1-249-413-11 CARBON...
  • Page 18 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C415 1-126-962-11 ELECT 3.3uF D902 8-719-200-82 DIODE 11ES2 D903 8-719-200-82 DIODE 11ES2 C418 1-162-306-11 CERAMIC 0.01uF D904 8-719-200-82 DIODE 11ES2 D905 8-719-934-18 DIODE HZS27-2L C419 1-162-294-31 CERAMIC 0.001uF C420 1-162-306-11 CERAMIC...
  • Page 19 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q303 8-729-141-30 TRANSISTOR 2SC3623A-LK R255 1-249-421-11 CARBON 2.2K 1/4W F Q304 8-729-141-30 TRANSISTOR 2SC3623A-LK Q401 8-729-230-99 TRANSISTOR 2SC2669-OY R256 1-249-432-11 CARBON 1/4W R257 1-249-424-11 CARBON 3.9K 1/4W F Q402 8-729-231-20 TRANSISTOR 2SK161-YGR Q403...
  • Page 20 ST-S3000ES MAIN TRANSFORMER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R408 1-249-429-11 CARBON 1/4W 1-666-121-11 TRANSFORMER BOARD R409 1-249-429-11 CARBON 1/4W ***************** R410 1-249-430-11 CARBON 1/4W < CAPACITOR > R411 1-249-417-11 CARBON 1/4W F ! R412...