Sony ICF-C411 Service Manual
Fm/am clock radio
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Operating Instructions
SERVICE MANUAL
Ver 1.0 2001.03
Sony Corporation
9-873-096-11
2001C0400-1
Audio Entertainment Group
© 2001.3
General Engineering Dept.
SPECIFICATIONS
Time display
24-hour system
Frequency range
FM: 87.5 - 108 MHz
AM: 530 - 1710 kHz
Speaker
Approx. 6.6 cm (2
inches) dia., 8 ohm
5/8
Power output
120 mW (at 10% harmonic distortion)
Power requirements
220 - 230 V AC, 50 Hz
For the power back-up function: 9 V DC, one 6F22 battery
Battery life
Approx. 20 hours (for clock backup), using Sony S-006P
(6F22) battery
Dimensions
Approx. 215 × 106.4 × 99.8 mm (w/h/d)
× 4
× 4 inches) incl. projecting parts and controls
(8
1/2
1/4
Mass
Approx. 780 g (1 lb 11.5 oz) not incl. battery
Design and specifications are subject to change without notice.
ICF-C411
Singapore Model
FM/AM CLOCK RADIO
1
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Table of Contents
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Summary of Contents for Sony ICF-C411
- Page 1 220 - 230 V AC, 50 Hz For the power back-up function: 9 V DC, one 6F22 battery Battery life Approx. 20 hours (for clock backup), using Sony S-006P (6F22) battery Dimensions Approx. 215 × 106.4 × 99.8 mm (w/h/d) ×...
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Page 2: Table Of Contents
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 SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. -
Page 3: Servicing Notes
ICF-C411 SECTION 1 SERVICING NOTES 1-1. CORD DRESSING (POWER CORD) 1) Set the power cord as shown in the figure. power cord 1-2. POINTER ALIGNMENT Align is the projection. 7 screws (P 3x10) pointer gear (VC) 6 MAIN board 4 gear (VC) -
Page 4: General
ICF-C411 SECTION 2 GENERAL This section is extracted from instruction manual. -
Page 5: Disassembly
ICF-C411 SECTION 3 DISASSEMBLY • The equipment can be removed using the following procedure. Cabinet (Upper) Section Main Board Key Board, LED Board Note : Follow the disassembly procedure in the numerical order given. 3-1. CABINET (UPPER) SECTION 5 cabinet (upper) section... -
Page 6: Main Board
ICF-C411 3-2. MAIN BOARD 1 knob (volume) 7 CN1 9 screws (P 3x10) 5 claw 8 Removal the solder 3 screw (P 3x10) 0 MAIN board 4 claw 2 screw (P 3x10) 3-3. KEY BOARD, LED BOARD 3 claw 2 KEY board... -
Page 7: Electrical Adjustments
ICF-C411 SECTION 4 ELECTRICAL ADJUSTMENTS FM SECTION 0 dB = 1 µV FM FREQUENCY COVERAGE ADJUSTMENT Setting: Adjust for a maximum reading on level meter. BAND switch: FM VOLUME control: MIN 86.5 MHz 109.5 MHz FM RF signal FM lead wire... - Page 8 ICF-C411 Adjustment Location: – MAIN board (component side) – ADJUSTMENT LEAD WIRE ANTENNA (SPEAKER) CT2, L2 TUNING CT3, L3 TRACKING FREQUENCY ADJUSTMENT COVERAGE ADJUSTMENT CT1, L1 TRACKING ADJUSTMENT BAND CT4, L4 FREQUENCY COVERAGE ADJUSTMENT...
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Page 9: Diagrams
ICF-C411 SECTION 5 DIAGRAMS 5-1. CIRCUIT BOARDS LOCATION THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. Common Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics KEY board and tantalums. -
Page 10: Block Diagram
ICF-C411 5-2. BLOCK DIAGRAM MAIN BOARD VREG w VOLUME BAND 10.7MHz LEAD WIRE ANTENNA DISCRI BAND SW DISCRIMINATOR FM ANT CV1-2 FM RF MIX OUT IF IN DET OUT AF IN AF OUT CT2,L2 FM IF AF POWER (SPEAKER) TRACKING... -
Page 11: Printed Wiring Boards - Main, Power Section
ICF-C411 5-3. PRINTED WIRING BOARDS — MAIN, POWER SECTION — • Refer to page 9 for Common Note on Printed Wiring Boards and for Circuit Boards Location. • Semiconductor Location Ref. No. Location D302 D-11 D303 D-11 D305 POWER BOARD... -
Page 12: Printed Wiring Boards - Key, Led Section
ICF-C411 5-4. PRINTED WIRING BOARDS — KEY, LED SECTION — • Refer to page 9 for Common Note on Printed Wiring Boards and for Circuit Boards Location. • Semiconductor Location Ref. No. Location LED101 D101 D102 E-12 (SHIELD) D103 E-12... -
Page 13: Schematic Diagram
ICF-C411 5-5. SCHEMATIC DIAGRAM • Refer to page 9 for Common Note on Schematic Diagram and page 14 for IC Block Diagrams. IC B/D IC B/D... -
Page 14: Exploded Views
ICF-C411 SECTION 6 EXPLODED VIEWS • IC Block Diagrams NOTE: • Color Indication of Appearance Parts The components identified by • The mechanical parts with no reference mark 0 or dotted line with mark Example : number in the exploded views are not supplied. -
Page 15: Chassis Section
ICF-C411 6-2. CHASSIS SECTION not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 51 A-3683-289-A MAIN BOARD, COMPLETE 3-226-460-01 POINTER 7-685-647-79 SCREW +P 3X10 TYPE2 NON-SLIT 3-226-457-01 SHAFT 3-226-468-01 HOLDER (ANTENNA) 3-226-458-01 KNOB (TUNING) -
Page 16: Cabinet (Lower) Section
ICF-C411 6-3. CABINET (LOWER) SECTION T301 The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark... -
Page 17: Electrical Parts List
ICF-C411 SECTION 7 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since The components identified by mark 0 or dotted line with mark the parts list may be different from the they are seldom required for routine service. - Page 18 ICF-C411 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark S104 1-692-014-11 SWITCH, KEYBOARD (TIME SET FAST +) 1-781-861-71 FILTER, CERAMIC (COMBINATION) S105 1-692-014-11 SWITCH, KEYBOARD (TIME SET FAST –) S106 1-692-014-11 SWITCH, KEYBOARD (OFF/ALARM RESET) <...
- Page 19 ICF-C411 POWER Ref. No. Part No. Description Remark 1-680-058-11 POWER BOARD ************* 1-535-771-11 TERMINAL 1-535-804-21 SNAP, BATTERY 1-555-795-00 CORD, POWER < CAPACITOR > C301 1-126-941-11 ELECT 470uF C302 1-126-926-11 ELECT 1000uF C303 1-162-970-11 CERAMIC CHIP 0.01uF C304 1-162-970-11 CERAMIC CHIP 0.01uF...
- Page 20 ICF-C411 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...