Sony Dream Machine ICF-C470L Service Manual Download

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MICROFILM

SERVICE MANUAL

ICF-C470

FM/AM CLOCK RADIO

ICF-C470L

FM/MW/LW 3 BAND CLOCK RADIO

US Model

Canadian Model

E Model

Australian Model

ICF-C470

AEP Model

ICF-C470/C470L

UK Model

ICF-C470L

SPECIFICATIONS

ICF-C470/C470L

Photo: ICF-C470

Ver 1.1 1999. 06
With SUPPLEMENT 1
(9-926-981-81)

Summary of Contents for Dream Machine ICF-C470L

Page 1: ...LOCK RADIO ICF C470L FM MW LW 3 BAND CLOCK RADIO US Model Canadian Model E Model Australian Model ICF C470 AEP Model ICF C470 C470L UK Model ICF C470L SPECIFICATIONS ICF C470 C470L Photo ICF C470 Ver 1 1 1999 06 With SUPPLEMENT 1 9 926 981 81 ...

Page 2: ...frequency red 10 70 MHz blue 10 67 MHz orange 10 73 MHz black 10 64 MHz white 10 76 MHz Notes on chip component replacement Never reuse a disconnected chip component Notice that the minus side of a tantalum capacitor may be dam aged by heat SAFETY CHECK OUT After correcting the original service problem perform the follow ing safety check before releasing the set to the customer Check the antenna t...

Page 3: ... 3 SECTION 1 GENERAL This section is extracted from instruction manual ...

Page 4: ...y procedure in the numerical order given SECTION 2 DISASSEMBLY 1 five screws P3 14 2 two claws 3 cabinet lower 1 power transformer 5 buzzer board 4 two claws 2 three claws for chassis 2 three claws for PWB 3 main block 6 Break the soldering of speaker lead ...

Page 5: ... arrow D direction fully 3 Turn shaft of CV1 to the arrow C direction fully BOTTOM VIEW 2 Turn the knob VOL to the arrow B direction fully 1 Turn the knob tuning to the arrow A direction fully dial pointer A B C D Note Follow the assembly procedure in the numerical order given ...

Page 6: ... 6 SECTION 4 POWER CORD SETTING lower cabinet power cord FM antenna Set the power cord as illustrated below then install the lower cabinet ...

Page 7: ...imum reading on level meter CT1 2 109 5 MHz 1 Except US Canadian models 2 ICF C470L SECTION 5 ELECTRICAL ADJUSTMENTS 0 dB 1 µV AM MW LW AM ICF C470 MW LW ICF C470L Setting Band switch AM MW LW FM Setting Band switch FM Repeat the procedures in each adjustment several times and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors Remove FM antenna in FM a...

Page 8: ...tment L2 CT1 1 CT1 4 AM MW Tracking Adjustment AM MW Frequency Coverage Adjustment CT1 3 L4 CT6 LW Frequency Coverage Adjustment L1 2 CT5 LW Tracking Adjustment L1 L1 1 AM MW Tracking Adjustment T1 AM IF Adjustment MAIN BOARD Component Side MAIN BOARD Conductor Side TP SPK TP SPK TP FM ANT ...

Page 9: ...Abbreviation E13 220 230 V AC 50 60Hz area in E model E92 120 V AC area in E model FM AM MW LW 05 AC IN IC1 B ALM B OUTPUT 24 ALM A OUTPUT 23 RADIO OUTPUT 22 D1 IC2 B RECT D2 3 RIPPLE FILTER Q2 SWITCH Q5 T2 POWER TRANSFORMER RECT D4 6 DIMMER CONTROL SWITCH S2 C470 C470L C470 CT1 4 L1 1 MW TRACKING S1 BAND S1 BAND S3 BUZZER VOLUME CT5 L1 2 LW TRACKING CV1 4 CT1 4 CV1 4 CT1 4 S1 2 CT5 VREF CT6 S1 1 ...

Page 10: ......

Page 11: ... to ground under no signal detuned conditions no mark FM AM Voltages are taken with aVOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Signal path F FM f AM Abbreviation AUS Australian model CND Canadian model E13 220 230 V AC 50 60 Hz area in E model E92 120 V AC area in E model IT Italian model SP Singapore model Note The components identi fied by mar...

Page 12: ......

Page 13: ...nel designation U B Line H adjustment for repair Voltages are dc with respect to ground under no signal detuned conditions no mark FM MW LW Voltages are taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Signal path F FM f MW LW Note The components identi fied by mark or dotted line with mark are criti cal for safety Replace only with part n...

Page 14: ...L SP1 1 504 748 21 SPEAKER 6 6cm 7 1 555 795 00 CORD POWER C470 AEP IT E13 SP C470L AEP 7 1 696 572 21 CORD POWER C470L UK 7 1 769 339 22 CORD POWER C470 E92 7 1 783 817 11 CORD POWER C470 US CND 7 1 790 431 11 CORD POWER C470 AUS 8 7 685 649 79 SCREW P 3X14 TYPE2 NON SLIT E92 120 V AC area in E model IT Italian model SP Singapore model Abbreviation AUS Australian model CND Canadian model E13 220 ...

Page 15: ... 030 214 31 CABINET LOWER C470L 52 3 030 220 01 KNOB BAND 53 1 671 686 11 BUZZER BOARD C470L 53 1 671 686 21 BUZZER BOARD C470 54 3 030 218 01 CHASSIS 55 3 032 106 01 SPRING ALARM 56 3 030 217 01 KNOB ALARM C470 US CND E13 E92 SP AUS 56 3 030 217 11 KNOB ALARM C470 AEP IT C470L 57 1 671 684 11 KEY B BOARD C470L 57 1 671 684 21 KEY B BOARD C470 58 1 671 683 11 KEY A BOARD C470L 58 1 671 683 21 KEY ...

Page 16: ...D E13 E92 JC8 1 216 295 00 SHORT 0 C470 AEP IT SP AUS C470L R15 1 216 073 00 METAL CHIP 10K 5 1 10W SWITCH S4 1 762 233 11 SWITCH KEYBOARD TIME SET S5 1 762 233 11 SWITCH KEYBOARD TIME SET S6 1 762 233 11 SWITCH KEYBOARD SNOOZE DATE SLEEP OFF S7 1 762 233 11 SWITCH KEYBOARD A RADIO ALARM S10 1 762 233 11 SWITCH KEYBOARD B BUZZER ALARM S11 1 762 233 11 SWITCH KEYBOARD CLOCK 1 671 684 11 KEY B BOARD...

Page 17: ...P 220PF 5 50V C470 US CND E92 FILTER CF1 1 577 072 11 FILTER CERAMIC C470 CF1 1 578 677 11 FILTER CRYSTAL C470L CF2 1 577 324 11 FILTER CERAMIC CF3 1 577 324 11 FILTER CERAMIC CONNECTOR CN1 1 568 270 11 SOCKET CONNECTOR 4P CN2 1 568 273 11 SOCKET CONNECTOR 7P TRIMMER CT1 1 141 529 11 CAP VARIABLE C470 AEP IT E13 SP AUS C470L CT1 1 151 628 11 CAP VARIABLE C470 US CND E92 CT5 1 141 604 11 CAP ADJ C4...

Page 18: ... 041 00 METAL CHIP 470 5 1 10W R12 1 216 096 00 RES CHIP 91K 5 1 10W R13 1 216 057 00 METAL CHIP 2 2K 5 1 10W C470 R13 1 216 206 00 RES CHIP 2 2K 5 1 8W C470L R14 1 216 073 00 METAL CHIP 10K 5 1 10W R18 1 216 073 00 METAL CHIP 10K 5 1 10W C470L R19 1 216 097 00 RES CHIP 100K 5 1 10W C470L R21 1 216 198 00 RES CHIP 1K 5 1 8W R22 1 249 399 11 CARBON 33 5 1 4W F C470 AEP IT E13 SP AUS C470L R22 1 249...

Page 19: ...SSORIES PACKING MATERIALS 3 865 470 11 MANUAL INSTRUCTION ENGLISH FRENCH GERMAN SWEDISH C470 CND AEP AUS C470L 3 865 470 21 MANUAL INSTRUCTION ENGLISH C470 US 3 865 470 31 MANUAL INSTRUCTION ENGLISH ITALIAN SPANISH PORTUGUESE C470 AEP IT E C470L AEP 3 865 470 51 MANUAL INSTRUCTION ENGLISH FINNISH DANISH CHINESE C470 AEP SP The components identified by mark or dotted line with mark are critical for...

Page 20: ... 26 ICF C470 C470L Sony Corporation Personal A V Products Company 9 926 981 11 99C0582 1 Printed in Japan 1999 3 Published by Quality Engineering Dept Shinagawa ...

Page 21: ...tion of East Europe Russia Model ICF C470L DIFFERENCE PARTS LIST ACCESSORIES PACKING MATERIAL Sony Corporation Personal Audio Company 99F05075 1D Printed in Japan 1999 6 Published by General Engineering Dept 9 926 981 81 Page Before change After change Ref No Part No Description Remark 3 865 470 42 MANUAL INSTRUCTION RUSSIAN POLISH CZECH HUNGARIAN East Europe Russia Ref No Part No Description Rema...

Page 22: ...This file has been downloaded from www electronica ro Service Manuals Schematic Diagram Repair ...

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