Sony STR-V220 Service Manual
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Sony STR-V220 Service Manual

Sony STR-V220 Service Manual

Fm stereo/fm-am receiver
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See also: Operating Instructions
STR-V220
SERVICE MANUAL
US Model
SPECIFICATIONS
— Continued on next page —
FM STEREO/FM-AM RECEIVER
MICROFILM
– 1 –

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Summary of Contents for Sony STR-V220

  • Page 1 STR-V220 SERVICE MANUAL US Model SPECIFICATIONS — Continued on next page — FM STEREO/FM-AM RECEIVER MICROFILM – 1 –...
  • Page 2 WITH MARK ! 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 PUBLISHED BY SONY. – 2 –...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS 1. SERVICING NOTE 4-6. Printed Wiring Board – Display Section – ......15 ............3 4-7. Schematic Diagram – Display Section – ......17 4-8. Schematic Diagram – Panel Section – ........ 19 2. GENERAL ................4 4-9.

  • Page 4: General

    SECTION 2 GENERAL Front Panel Descriptions Location of Parts and Controls 1 1/u button 10 TREBLE knob 19 SHIFT button 2 VIDEO button 11 BASS knob 20 MEMORY button 3 TV/SAT button 12 SURROUND ON/OFF button 21 AM button 4 TAPE/MD button 13 CENTER MODE button 22 TUNING + button 5 CD button...

  • Page 5: Electrical Block Checking

    STR-V220 SECTION 3 SECTION 4 ELECTRICAL BLOCK CHECKING DIAGRAMS ADJUSTING THE FM/SD SIGNAL SENSITIVITY 4-1. CIRCUIT BOARDS LOCATION SECONDARY board Setting: STANDBY board FM ANTENNA (75 Ω ) FM RF SSG PRIMARY board MAIN board Carrier frequency: 98 MHz Modulation:...

  • Page 6: Schematic Diagram - Main (1/3) Section

    STR-V220 4-2. SCHEMATIC DIAGRAM – MAIN (1/3) SECTION – • See page 6 for Waveforms. • See page 13 for Printed Wiring Board. • See page 23 for IC Block Diagrams. (Page 19) (Page 11) (Page 11) (Page 17) – 7 –...

  • Page 7: Schematic Diagram - Main (2/3) Section

    STR-V220 4-3. SCHEMATIC DIAGRAM – MAIN (2/3) SECTION – • See page 13 for Printed Wiring Board. (Page 20) (Page 11) – 10 – – 9 –...

  • Page 8: Schematic Diagram - Main (3/3) Section

    STR-V220 4-4. SCHEMATIC DIAGRAM – MAIN (3/3) SECTION – • See page 24 for IC Block Diagrams. (Page 9, 10) (Page 8) (Page 8) – 11 – – 12 –...

  • Page 9: Printed Wiring Board - Main Section

    STR-V220 4-5. PRINTED WIRING BOARD – MAIN SECTION – • See page 6 for Circuit Boards Location. STANDBY BOARD • Semiconductor MAIN BOARD TAPE/MD VIDEO Location SONY TA/SAT AUDIO AUDIO ANTENNA SPEAKER CD IN AUDIO IN AUDIO OUT 1-673-705-11 Ref. No.

  • Page 10: Printed Wiring Board - Display Section

    STR-V220 4-6. PRINTED WIRING BOARD – DISPLAY SECTION – • See page 6 for Circuit Boards Location. (Page 13) (Page 22) DISPLAY BOARD JW43 CNP205 JW103 JW40 JW12 JW42 X201 JW89 JW105 R200 (Page 21) (Page 21) Q202 C203 R235...

  • Page 11: Schematic Diagram - Display Section

    STR-V220 4-7. SCHEMATIC DIAGRAM – DISPLAY SECTION – • See page 6 for Waveforms. • See page 25 for IC Block Diagrams. • See page 26 for IC Pin Function. (Page 20) (Page 20) (Page 7) (Page 19) – 18 –...

  • Page 12: Schematic Diagram - Panel Section

    STR-V220 4-8. SCHEMATIC DIAGRAM – PANEL SECTION – (Page 18) (Page 17) (Page 18) (Page 9) (Page 8) – 19 – – 20 –...

  • Page 13: Printed Wiring Board - Panel Section

    STR-V220 4-9. PRINTED WIRING BOARD – PANEL SECTION – • See page 6 for Circuit Boards Location. KEY BOARD SONY 1-673-694-11 JW130 TUNER TAPE/MD TV/SAT VIDEO R237 R244 S222 S221 S239 S231 S223 CNS205 D238 BASS BOOST R246 R242 R240...

  • Page 14: Ic Block Diagrams

    STR-V220 4-10. IC BLOCK DIAGRAMS IC401 LC7822 IC950 NJM2103D • Main section IC301 LV1035M RESET 64 63 62 – + R BPF2 L BPF2 RECT RECT VREF + – LOGIC LOGIC R BPF1 L BPF1 RECT RECT LOGIC LOGIC OUTC...
  • Page 15 IC502 LC72131 PHASE DETECTOR CHARGE PUMP POWER REFERENCE UNLOCK DIVIDER DETECTOR RESET SWALLOW COUNTER 1/16, 1/17 4BITS 12BITS PROGRAMMABLE DIVIDER UNIVERSAL DATA SHIFT REGISTER LATCH COUNTER 3 4 5 6 8 10 11 • Display section IC202 BA6208 MOTOR SWITCH DRIVE MOTOR SWITCH...

  • Page 16: Ic Pin Functions

    4-11. IC PIN FUNCTION • IC201 uPD78044FGF-145-3B9 (Display board) Pin Name Function Pin No. DIG7 DIG6 DIG5 DIG4 Fluorescent indicator tube drive DIG3 DIG2 DIG1 Power supply (+5V) — S. CLK System clock S. DATA System data PLL data input from TU001 PLL.
  • Page 17 Pin No. Pin Name Function VOLUME UP Volume up VOLUME DOWN Volume down STANDBY Standby LED drive (Not used) SYS. POWER System power ON/OFF RDS. DATA. IN RDS data input (Not used) RDS. CLK. IN RDS clock input (Not used) STOP Stop signal input from NJM2103D (IC950) —...

  • Page 18: Exploded Views

    4-977-593-01 RING (DIA. 50), ORNAMENTAL * 15 4-921-941-01 CUSHION (FL) A-4411-579-A PANEL ASSY, FRONT * 16 4-210-383-01 HOLDER (FL TUBE) 4-996-698-41 EMBLEM, SONY 3-704-366-31 SCREW (CASE) (M3X6) A-4419-637-A KEY BOARD, COMPLETE * 18 4-210-365-01 CASE 1-782-100-11 WIRE (FLAT TYPE) (23 CORE)
  • Page 19 5-2. SHASSIS SECTION not supplied IC702 IC701 #2 #2 53 57 supplied supplied T901 not supplied supplied supplied The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Ref.

  • Page 20: Electrical Parts List

    SECTION 6 DISPLAY ELECTRICAL PARTS LIST Note: • SEMICONDUCTORS • Due to standardization, replacements in the parts list The components identified by In each case, u: µ , for example: may be different from the parts specified in the mark ! or dotted line with mark uA...: µ...
  • Page 21 DISPLAY MAIN PHONE JACK Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R473 1-247-903-00 CARBON 1/4W R240 1-249-413-11 CARBON 1/4W F R474 1-247-903-00 CARBON 1/4W R241 1-249-415-11 CARBON 1/4W F < VARIABLE RESISTOR > R242 1-249-417-11 CARBON 1/4W F R243 1-249-419-11 CARBON...
  • Page 22 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C317 1-126-934-11 ELECT 220uF C509 1-110-671-31 CERAMIC 47000PF C318 1-136-357-11 FILM 680PF C511 1-164-096-11 CERAMIC 0.01uF C322 1-126-962-11 ELECT 3.3uF C512 1-128-551-11 ELECT 22uF C323 1-136-173-00 FILM 0.47uF C324 1-136-165-00 FILM...
  • Page 23 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C707 1-128-576-11 ELECT 100uF < DIODE > C708 1-164-159-21 CERAMIC 0.1uF D503 8-719-815-85 DIODE 1S1585 C711 1-137-372-11 FILM 0.022uF D610 8-719-815-85 DIODE 1S1585 C712 1-128-576-11 ELECT 100uF D620 8-719-815-85 DIODE 1S1585 C720...
  • Page 24 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < COIL > R362 1-249-429-11 CARBON 1/4W R363 1-249-411-11 CARBON 1/4W L301 1-410-509-11 INDUCTOR 10uH R402 1-249-421-11 CARBON 2.2K 1/4W F L601 1-420-872-00 COIL, AIR-CORE L651 1-420-872-00 COIL, AIR-CORE R403 1-249-417-11 CARBON 1/4W F...
  • Page 25 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R546 1-247-807-31 CARBON 1/4W R720 1-249-420-11 CARBON 1.8K 1/4W F R721 1-247-815-91 CARBON 1/4W R547 1-249-425-11 CARBON 4.7K 1/4W F ! R722 1-249-403-11 CARBON 1/4W F R548 1-249-421-11 CARBON 2.2K 1/4W F...
  • Page 26 MAIN PRIMARY SECONDARY STANDBY VOL-TONE Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark RY801 1-755-013-11 RELAY < RESISTOR > < SFR > R901 1-202-725-00 SOLID 3.3M 1/2W SFR501 1-238-599-11 RES, ADJ, CARBON 4.7K < RELAY > <...
  • Page 27 VOL-TONE Ref. No. Part No. Description Remark R433 1-249-427-11 CARBON 6.8K 1/4W F R434 1-249-413-11 CARBON 1/4W F R438 1-249-441-11 CARBON 100K 1/4W R441 1-249-441-11 CARBON 100K 1/4W R464 1-247-903-00 CARBON 1/4W R469 1-247-903-00 CARBON 1/4W R475 1-249-429-11 CARBON 1/4W R476 1-249-439-11 CARBON 1/4W...
  • Page 28 STR-V220 Sony Corporation 99D097020-1 Printed in Singapore © 1999. 4 9-928-834-11 Home A&V Products Company Published by Quality Assurance Dept. – 38 – (Shinagawa)

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