Related Manuals for Sony TA-FB720R
Summary of Contents for Sony TA-FB720R
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Page 1: Service Manual
TA-FB720R/FB820R SERVICE MANUAL AEP Model Photo : TA-FB820R SPECIFICATIONS INTEGRATED STEREO AMPLIFIER MICROFILM – 1 –... -
Page 2: Table Of Contents
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: General
SECTION 1 GENERAL Front Panel Descriptions 1 PROTECTION indicator 12 SUBSONIC button 2 U (Power) button 13 SOURCE DIRECT button and indicator 3 Remote sensor 14 LOUDNESS button 4 TAPE 1/DAT indicator 15 TAPE MONITOR knob 5 TAPE 2/MD indicator 16 BALANCE knob 6 AUX indicator 17 TREBLE knob... -
Page 4: Electrical Adjustment
SECTION 2 ELECTRICAL ADJUSTMENT Bias Adjustment NOTE: 1. Perform the adjustment after the unit has warmed up sufficiently. 2. Perform the bias adjustment if the power transistor has been replaced. Procedure: 1. Rotate fully the bias adjusting semi-fixed resistors (RV500, RV600) to the MIN position (counterclockwise). -
Page 5: Diagrams
SECTION 3 DIAGRAMS 3-1. CIRCUIT BOARDS LOCATION WAVEFORM THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) 3.8Vp-p For schematic diagrams. 4MHz Note: IC902 1 XOUT •... -
Page 6: Schematic Diagram - Input Section
TA-FB720R/FB820R 3-2. SCHEMATIC DIAGRAM – INPUT SECTION – • See page 23 for IC Block Diagrams. (Page 12) (Page 15) (Page 15) – 7 – – 8 –... -
Page 7: Printed Wiring Board - Input Section
TA-FB720R/FB820R 3-3. PRINTED WIRING BOARD – INPUT SECTION – • See page 5 for Circuit Boards Location. (Page 18) (Page 17) (Page 13) • Semiconductor Location Ref. No. Location D101 D102 D133 D140 D240 IC101 Q101 Q102 Q103 Q140 Q240 –... -
Page 8: Schematic Diagram - Main Section
TA-FB720R/FB820R 3-4. SCHEMATIC DIAGRAM – MAIN SECTION – • See page 23 for IC Block Diagrams. (Page 16) (Page 16) (Page (Page 20) (Page (Page 8) – 11 – – 12 –... -
Page 9: Printed Wiring Board - Main Section
TA-FB720R/FB820R 3-5. PRINTED WIRING BOARD – MAIN SECTION – • Semiconductor Location • See page 5 for Circuit Boards Location. Ref. No. Location D500 C-10 D501 C-10 D502 C-10 D503 E-11 D504 E-10 D505 E-10 (Page 22) D506 D511 D512... -
Page 10: Schematic Diagram - Panel Section
TA-FB720R/FB820R 3-6. SCHEMATIC DIAGRAM – PANEL SECTION – • See page 5 for Waveforms. • See page 23 for IC Block Diagram. • See page 24 for IC Pin Function. (Page 11) (Page (Page 8) (Page 7) (Page 12) – 16 –... -
Page 11: Printed Wiring Board - Panel Section
TA-FB720R/FB820R • Semiconductor 3-7. PRINTED WIRING BOARD – PANEL SECTION – Location • See page 5 for Circuit Boards Location. (Page 18) Ref. No. Location D902 D903 D904 D905 D906 D907 D908 B-10 D910 D912 D913 D914 D915 D916 D917... -
Page 12: Schematic Diagram - Power Section
TA-FB720R/FB820R 3-8. SCHEMATIC DIAGRAM – POWER SECTION – (Page 12) (Page 11) – 20 – – 19 –... -
Page 13: Printed Wiring Board - Power Section
TA-FB720R/FB820R 3-9. PRINTED WIRING BOARD – POWER SECTION – • See page 5 for Circuit Boards Location. (Page 14) (Page 13) – 21 – – 22 –... -
Page 14: Ic Block Diagrams
3-11. IC PIN FUNCTION 3-10. IC BLOCK DIAGRAMS • IC902 Input Control & LED Drive (TMP47C103N-JP47) • Input section Pin No. Pin Name Function IC101 LC7821 X OUT System clock (4MHz) X IN RESET Reset input Mode select input VOL + Motor drive output (+) VOL –... -
Page 15: Exploded View
SECTION 4 EXPLODED VIEW NOTE: The components identified by • Items marked “*” are not stocked since they are mark ! or dotted line with mark seldom required for routine service. Some delay ! are critical for safety. should be anticipated when ordering these items. Replace only with part number •... -
Page 16: Front Panel Section
Replace only with part number specified. Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-942-568-41 EMBLEM (NO.5), SONY * 62 1-670-220-11 SIRCS SUB BOARD 4-965-651-01 EMBLEM (MOS) * 63 1-669-497-11 SIRCS BOARD 4-967-961-01 SCREW (3X8) * 65 1-669-494-11 SP-SW BOARD... -
Page 17: Chassis Section
4-3. CHASSIS SECTION supplied Q511 Q612 not supplied Q702 Q512 supplied supplied Q611 supplied not supplied supplied not supplied The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Ref. -
Page 18: Electrical Parts List
SECTION 5 INPUT ELECTRICAL PARTS LIST Note: • Due to standardization, replacements in the parts list • SEMICONDUCTORS 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 19 INPUT MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R124 1-259-428-11 CARBON 1/6W A-4407-618-A MAIN BOARD, COMPLETE (FB720R) (FB720R) ******************** R125 1-259-167-21 CARBON 1/4W A-4407-637-A MAIN BOARD, COMPLETE (FB820R) (FB820R) ******************** R125 1-259-428-11 CARBON 1/6W (FB720R) <...
- Page 20 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D502 8-719-911-19 DIODE 1SS119-25 R502 1-259-151-21 CARBON 1/4W D503 8-719-933-39 DIODE HZS6C1L R503 1-259-151-21 CARBON 1/4W D504 8-719-911-19 DIODE 1SS119-25 R504 1-259-151-21 CARBON 1/4W D505 8-719-911-19 DIODE 1SS119-25 R505 1-259-179-21 CARBON 3.3K...
- Page 21 MAIN OUTLET PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < VARIABLE RESISTOR > < CONNECTOR > RV500 1-241-762-11 RES, ADJ, CARBON 2.2K * CN300 1-564-522-11 PLUG, CONNECTOR 7P RV600 1-241-762-11 RES, ADJ, CARBON 2.2K * CN301 1-564-526-11 PLUG, CONNECTOR 11P CN901...
- Page 22 PANEL PHONO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R303 1-259-436-11 CARBON 2.2K 1/6W R939 1-247-752-11 CARBON 1/2W R304 1-259-500-11 CARBON 1/6W (FB820R) R305 1-259-464-11 CARBON 1/6W < VARIABLE RESISTOR > R306 1-259-456-11 CARBON 1/6W R307 1-259-446-11 CARBON 5.6K...
- Page 23 PHONO SIRCS Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < JACK > 1-669-473-11 PS BOARD ******** J150 1-764-593-21 JACK 2P (PHONO IN) < CAPACITOR > < COIL > C750 1-125-819-11 ELECT 6800uF L150 1-410-977-11 INDUCTOR 100uH (FB720R) L151 1-410-977-11 INDUCTOR 100uH...
- Page 24 SIRCS SUB SP-SW SP-TM Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-670-220-11 SIRCS SUB BOARD C706 1-137-150-11 MYLAR 0.01uF 100V C707 1-137-150-11 MYLAR 0.01uF 100V *************** C708 1-128-578-11 ELECT 100V < CONNECTOR > C709 1-126-972-11 ELECT 1000uF C710 1-126-969-11 ELECT...
- Page 25 SP-TM Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R711 1-247-746-11 CARBON 1/2W F 3-864-335-21 MANUAL, INSTRUCTION (FB720R) (GERMAN,DUTCH,SWEDISH,ITALIAN) 4-981-643-01 COVER, BATTERY (FOR RM-S316) < RELAY > ************************************************************** RY501 1-515-921-11 RELAY (12V) RY502 1-515-921-11 RELAY (12V) ************* RY503 1-515-920-11 RELAY (24V)
- Page 26 TA-FB R/FB820R Sony Corporation 98E097541-1 Printed in Hungary © 1998. 5 9-922-867-11 Home A&V Products Company Published by Quality Assurance Dept. – 36 – (Shibaura)