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SERVICE MANUAL

Singapore Model

ICF-C411

FM/AM CLOCK RADIO

SPECIFICATIONS

Ver 1.0  2001.03

Sony Corporation

Audio Entertainment Group

General Engineering Dept.

9-873-096-11

2001C0400-1

© 2001.3

Time display

24-hour system

Frequency range

FM: 87.5 - 108 MHz
AM: 530 - 1710 kHz

Speaker

Approx. 6.6 cm (2 

5/8

 inches) dia., 8 ohm

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)

(8 

1/2

 

×

 4 

1/4

 

×

 4 inches) incl. projecting parts and controls

Mass

Approx. 780 g (1 lb 11.5 oz) not incl. battery

Design and specifications are subject to change without notice.

Summary of Contents for Dream Machine ICF-C411

Page 1: ...Speaker Approx 6 6 cm 2 5 8 inches dia 8 ohm 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 8 1 2 4 1 4 4 inches incl projecting parts and controls Mass Approx 780 g 1 lb 11 5 oz not incl b...

Page 2: ...the minus side of a tantalum capacitor may be dam aged by heat ICF C411 TABLE OF CONTENTS 1 SERVICING NOTES 1 1 Cord Dressing Power Cord 3 1 2 Pointer Alignment 3 2 GENERAL 4 3 DISASSEMBLY 3 1 Cabinet Upper Section 5 3 2 Main Board 6 3 3 Key Board LED Board 6 4 ELECTRICAL ADJUSTMENTS 7 5 DIAGRAMS 5 1 Circuit Boards Location 9 5 2 Block Diagram 10 5 3 Printed Wiring Boards Main Power Section 11 5 4...

Page 3: ...NTER ALIGNMENT power cord 7 screws P 3x10 2 pointer retainer board 8 knob tuning 4 gear VC 6 MAIN board gear VC Align is the projection 1 5 3 chassis chassis pointer pointer 1 1 CORD DRESSING POWER CORD 1 Set the power cord as shown in the figure ...

Page 4: ...4 ICF C411 SECTION 2 GENERAL This section is extracted from instruction manual ...

Page 5: ... procedure SECTION 3 DISASSEMBLY Note Follow the disassembly procedure in the numerical order given 3 1 CABINET UPPER SECTION Set Cabinet Upper Section Main Board Key Board LED Board 1 screws P 3x14 5 cabinet upper section 4 CN301 2 screws P 3x14 3 screw P 3x14 ...

Page 6: ...1 3 2 MAIN BOARD 3 3 KEY BOARD LED BOARD 9 screws P 3x10 0 MAIN board 8 Removal the solder 2 screw P 3x10 3 screw P 3x10 5 claw 4 claw 6 1 knob volume 7 CN1 1 screw P 3x10 2 KEY board 4 LED board 5 LED101 3 claw ...

Page 7: ...ON 0 dB 1 µV Setting BAND switch FM VOLUME control MIN AM SECTION Setting BAND switch AM VOLUME control MIN SECTION 4 ELECTRICAL ADJUSTMENTS FM lead wire antenna terminal 0 01µF FM RF signal generator 400Hz 30 FM modulation frequency deviation 22 5kHz Output level as low as possible set Put the lead wire antenna close to the set AM RF signal generator 400Hz 30 AM modulation Output level as low as ...

Page 8: ...L3 L4 FM AM CV1 TUNING SP1 SPEAKER CT3 CT2 CT4 CT1 CT4 L4 AM FREQUENCY COVERAGE ADJUSTMENT CT3 L3 FM FREQUENCY COVERAGE ADJUSTMENT FM LEAD WIRE ANTENNA CT1 L1 AM TRACKING ADJUSTMENT T1 AM IF ADJUSTMENT CT2 L2 FM TRACKING ADJUSTMENT MAIN board component side ...

Page 9: ...ge is dc with respect to ground under no signal detuned condition no mark FM AM Voltages are taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Signal path F FM f AM Note The components identified by mark 0 or dotted line with mark 0 ...

Page 10: ...FERRITE ROD ANTENNA CV1 TUNING T1 AM IF FM FRONT END AM FRONT END IC1 FM AM FRONT END IF AMP DET FM ANT FM RF FM OSC AM ANT AM OSC VREG 13 10 15 8 11 6 MIX OUT CF3 CF2 T1 FM IF IN AF IN AF OUT NF B B B DET OUT AM IF IN DISCRI VOL CF1 10 7MHz VREG Q1 RV1 w VOLUME IC101 ALARM CLOCK S1 BAND AM FM BAND SW SP1 SPEAKER KEEP THE CORRECT TIME DURING POWER STOPPAGE REG FM LEAD WIRE ANTENNA W1 SPEED POWER D...

Page 11: ...V1 w VOLUME 1 680 058 11 11 1 680 056 11 11 POWER BOARD MAIN BOARD 15 16 10 5 1 1 4 C B E C B E 20 30 25 S1 BAND SP1 SPEAKER KEY BOARD W3 C7 PS301 DRY BATTERY S 006P 9V IEC DESIGNATION 6F22 KEEP THE CORRECT TIME DURING POWER STOPPAGE 2 1 1 7 KEY BOARD W4 L2 L3 L4 L1 NUR RED BLK FM AM CV1 TUNING AM FERRITE ROD ANTENNA AC IN 1 3 5 3 PRINTED WIRING BOARDS MAIN POWER SECTION Refer to page 9 for Common...

Page 12: ...8 JW113 JW129 JW103 JW102 R135 R138 D104 S101 D108 D102 D103 S110 S102 BRIGHTNESS ALARM TIME CLOCK SET Function Selector Function Selector HIGH LOW TIME SET FAST HOLD RADIO BUZZER CLOCK ALARM MODE OFF RADIO BUZZER RADIO BUZZER IC101 1 4 C B E C C B E B E 1 7 1 5 10 14 28 25 20 15 S108 SLEEP S105 TIME SET FAST S106 OFF ALARM RESET S107 RADIO ON S109 SNOOZE RADIO ALARM BUZZER D201 D202 W2 1 680 057 ...

Page 13: ...ICF C411 13 13 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: ...ews are not supplied Items marked are not stocked since they are seldom required for routine service Some delay should be anticipated when ordering these items Color Indication of Appearance Parts Example KNOB BALANCE WHITE RED Parts Color Cabinet s Color Accessories and packing materials are given in the last of this parts list R R The components identified by mark 0 or dotted line with mark 0 ar...

Page 15: ...7 685 647 79 SCREW P 3X10 TYPE2 NON SLIT 53 3 226 468 01 HOLDER ANTENNA 54 3 226 467 01 GEAR VC 55 3 226 465 01 KNOB BAND 56 3 226 456 01 CHASSIS 57 3 226 460 01 POINTER 58 3 226 457 01 SHAFT 59 3 226 458 01 KNOB TUNING 60 1 754 135 11 ANTENNA WIRE L1 1 419 532 11 COIL FERRITE ROD ANTENNA AM 51 52 53 52 60 L1 54 55 56 not supplied 57 58 59 ...

Page 16: ...Replace only with part number specified 101 3 226 455 11 CABINET LOWER 102 3 368 852 01 FOOT 103 3 369 135 21 LID BATTERY CASE 104 1 535 804 21 SNAP BATTERY 105 3 226 470 01 LID BATTERY 106 7 685 647 79 SCREW P 3X10 TYPE2 NON SLIT 107 3 231 250 01 WASHER 0108 1 555 795 00 CORD POWER 109 1 680 058 11 POWER BOARD 0T301 1 435 961 11 TRANSFORMER POWER 101 102 103 104 105 106 106 107 108 109 T301 ...

Page 17: ...7 11 METAL CHIP 22K 5 1 16W R110 1 216 823 11 METAL CHIP 1 5K 5 1 16W R111 1 216 833 11 METAL CHIP 10K 5 1 16W R112 1 216 848 11 METAL CHIP 180K 5 1 16W R113 1 216 841 11 METAL CHIP 47K 5 1 16W R114 1 216 839 11 METAL CHIP 33K 5 1 16W R115 1 216 845 11 METAL CHIP 100K 5 1 16W R116 1 216 841 11 METAL CHIP 47K 5 1 16W R117 1 216 845 11 METAL CHIP 100K 5 1 16W R118 1 216 821 11 METAL CHIP 1K 5 1 16W ...

Page 18: ...1 126 935 11 ELECT 470uF 20 10V C17 1 115 156 11 CERAMIC CHIP 1uF 10V C18 1 115 156 11 CERAMIC CHIP 1uF 10V C19 1 104 665 11 ELECT 100uF 20 10V C20 1 126 934 11 ELECT 220uF 20 10V C21 1 162 908 11 CERAMIC CHIP 3PF 0 25PF 50V C24 1 162 964 11 CERAMIC CHIP 0 001uF 5 50V C25 1 164 230 11 CERAMIC CHIP 220PF 5 50V C27 1 162 964 11 CERAMIC CHIP 0 001uF 5 50V FILTER CF1 1 781 861 71 FILTER CERAMIC COMBIN...

Page 19: ...NECTOR 7P DIODE D302 8 719 911 19 DIODE 1SS119 25TD D303 8 719 052 88 DIODE 1N4002 D305 8 719 911 19 DIODE 1SS119 25TD IC LINK 0PS301 1 533 964 41 LINK IC 250mA TRANSISTOR Q301 8 729 216 22 TRANSISTOR 2SA812 T1 M5M6 RESISTOR R301 1 216 845 11 METAL CHIP 100K 5 1 16W R304 1 247 741 11 CARBON 150 5 1 2W R305 1 247 741 11 CARBON 150 5 1 2W TRANSFORMER 0T301 1 435 961 11 TRANSFORMER POWER MISCELLANEOU...

Page 20: ...ISTORY 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 1 0 2001 03 New ...

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