Sony ICF-C763 Service Manual

Fm/am or fm/mw/lm pll synthesized clock radio
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SERVICE MANUAL
Ver 1.0 2004.05
Time display
UK, North and South America
Other countries/regions
Frequency range
Model for North and South America
Band
ICF-C763
FM
87.5 - 108 MHz
AM
530 - 1 710 kHz
Model for other countries/Regions
Band
ICF-C763
FM
87.5 - 108 MHz 87.5 - 108 MHz 0.05 MHz
AM (MW) 531 - 1 602 kHz 531 - 1 602 kHz 9 kHz
LW
Speaker
Approx. 5.7 cm (2
Power output
200 mW (at 10 % harmonic distortion)
Sony Corporation
9-877-783-01
Personal Audio Company
2004E02-1
© 2004.05
Published by Sony Engineering Corporation
ICF-C763/C763L
SPECIFICATIONS
12-hour system
24-hour system
Channel step
0.1 MHz
10 kHz
ICF-C763L
Channel step
153 - 279 kHz
3 kHz
inches) dia. 4 Ω
1
/
4
FM/AM PLL SYNTHESIZED CLOCK RADIO
FM/MW/LM PLL SYNTHESIZED CLOCK RADIO
Power requirements
North and South American model
Other model
Dimensions
Approx. 115.5 x 105 x 110.6 mm (w/h/d) (4
including projecting parts and controls
Mass
Approx. 665 g (1 lb 7.5 oz)
Approx. 675 g (1 lb 7.8 oz): ICF-C763L (UK model)
Approx. 600 g (1 lb 5.2 oz): ICF-C763 (North and South America model)
Design and specifications are subject to change without notice.
US Model
Canadian Model
ICF-C763
AEP Model
ICF-C763/C763L
UK Model
ICF-C763L
: 120 V AC, 60 Hz
: 230 V AC, 50 Hz
5
1
3
/
x 4
/
x 4
/
inches)
8
4
8
ICF-763
ICF-763L

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  Summary of Contents for Sony ICF-C763

  • Page 1 10 kHz Approx. 665 g (1 lb 7.5 oz) Model for other countries/Regions Approx. 675 g (1 lb 7.8 oz): ICF-C763L (UK model) Approx. 600 g (1 lb 5.2 oz): ICF-C763 (North and South America model) Band ICF-C763 ICF-C763L Channel step 87.5 - 108 MHz 87.5 - 108 MHz 0.05 MHz...
  • Page 2: Table Of Contents

    SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SUPPLEMENTS PUBLISHED BY SONY. SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
  • Page 3: General

    ICF-C763/C763L SECTION 1 GENERAL This section is extracted from instruction manual. LOCATION AND FUNCTION OF CONTROLS The PRESET 3 button and VOLUME have a tactile dot. BRIGHTNESS TUNE/TIME SET D.S.T./ CLOCK ALARM ALARM MODE PRESET SELECT ENTER SNOOZE/ SLEEP OFF...
  • Page 4: Electrical Adjustments

    ICF-C763/C763L SECTION 2 ELECTRICAL ADJUSTMENTS < > : ICF-C763L • ICF-C763 [ ] : Italian model 0 dB = 1 µV TUNER SECTION AM IF ADJUSTMENT • AM Section Adjust for a maximum reading on level meter. Setting: BAND button: AM <MW and LW>...
  • Page 5 ICF-C763/C763L Adjustment and Connect Location MAIN BOARD (Component Side) L4 : AM (MW) Frequency coverage adjustment CT4 : LW Frequency coverag e adjustment CT1 : AM (MW) tracking adjustment CT2 : LW T1 : AM (MW) tracking IF adjustment adjustment...
  • Page 6: Diagrams

    ICF-C763/C763L SECTION 3 DIAGRAMS Note: • Circuit Boards Location • X : parts extracted from the component side. Note: • : Pattern from the side which enables seeing. • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.
  • Page 7: Ic Pin Function Descriptions

    ICF-C763/C763L 3-2. IC Pin Function Descriptions • IC100 SYSTEM CONTROL (MPD17072GB-573-1A7) Pin No. Pin Name Description 1, 2 BACK LIGHT1, 2 Back light LED 3, 4 ILLUMINATION1, 2 Illumination LED 5 to 9 KS0 to 4 Key source 10 to 13...
  • Page 8: Printed Wiring Board - Main Section

    ICF-C763/C763L 3-3. PRINTED WIRING BOARD – MAIN SECTION – D100 - 102 MAIN BOARD Semiconductor (BACK LIGHT) Location Ref. No. Location LCD101 Q101 D100 D101 JW103 C104 R108 D102 D103 JW107 43 42 R103 JW113 Q100 D104 R113 JW105 R104...
  • Page 9: Schematic Diagram - Main Section

    ICF-C763/C763L 3-4. SCHEMATIC DIAGRAM – MAIN SECTION –...
  • Page 10: Printed Wiring Board - Contrd Section

    ICF-C763/C763L 3-5. PRINTED WIRING BOARD – CONTROL SECTION – KEY BOARD • Semiconductor Location Ref. No. Location VOLUME BOARD ALARM MODE S93 TUNE/TIMESET + VOLUME ALARM B SNOOZE/ TUNE/TIMESET - SLEEP OFF 1-861-857- (11) ALARM A (DOOR) SUB KEY BOARD...
  • Page 11: Schematic Diagram - Contrd Section

    ICF-C763/C763L 3-6. SCHEMATIC DIAGRAM – CONTROL SECTION –...
  • Page 12: Printed Wiring Board - Power Section

    ICF-C763/C763L 3-7. PRINTED WIRING BOARD – POWER SECTION – 3-8. SCHEMATIC DIAGRAM – POWER SECTION – POWER BOARD POWER UNIT JW83 B C E PATTERN COIL MAIN BOARD (Page 8) JW81 PATTERN COIL B C E JW88 STANDBY 1-861-856- (11) NIGHT LIGHT MODE •...
  • Page 13: Exploded View

    ICF-C763/C763L SECTION 4 EXPLODED VIEW NOTE : • The mechanical parts with no reference • -XX, -X mean standardized parts, so they number in the exploded views are not The components identified by mark 0 may have some difference from the original supplied.
  • Page 14: Electrical Parts List

    ICF-C763/C763L SECTION 5 MAIN ELECTRICAL PARTS LIST NOTE : • Due to standardization, replacements in the • SEMICONDUCTORS The components identified by mark 0 In each case, u : µ , for example : parts list may be different from the parts or dotted line with mark 0 are critical uA..
  • Page 15 ICF-C763/C763L MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-162-970-11 CERAMIC CHIP 0.01uF C125 1-107-826-11 CERAMIC CHIP 0.1uF (C763L) C126 1-164-156-11 CERAMIC CHIP 0.1uF 1-162-923-11 CERAMIC CHIP 47PF C127 1-107-826-11 CERAMIC CHIP 0.1uF (C763L) C128...
  • Page 16 ICF-C763/C763L POWER MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark JC105 1-216-864-11 SHORT CHIP R104 1-216-797-11 METAL CHIP 1/10W JC106 1-216-864-11 SHORT CHIP R105 1-216-813-11 METAL CHIP 1/10W JC107 1-216-864-11 SHORT CHIP R106 1-216-813-11 METAL CHIP...
  • Page 17: Components Identified By Mark 0 Or Dotted Line With

    ICF-C763/C763L POWER SUB KEY VOLUME Ref. No. Part No. Description Remark 8-729-011-92 TRANSISTOR 2SC2001TP-K1K2 8-729-905-35 TRANSISTOR 2SC4081-R 8-729-026-53 TRANSISTOR 2SA1576A-T106-QR < RESISTOR > 1-216-817-11 METAL CHIP 1/10W 1-216-817-11 METAL CHIP 1/10W 1-216-821-11 METAL CHIP 1/10W 1-216-833-11 METAL CHIP 1/10W 1-216-829-11 METAL CHIP 4.7K...
  • Page 18 ICF-C763/C763L REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision...

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