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ICF-703S

REVISION HISTORY

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Ver.

Date

Description of Revision

1.1

2001. 09

Cabinet Color Addition (DARK BLACK)

(SPM-01034)

1.0

2000. 04

New

Содержание ICF-703S

Страница 1: ...x 10 2 cm 4 1 8 inches dia 8 ohms Power output 430 mW at 10 harmonic distortion Output v jack ø 3 5 mm minijack Power requirements With the supplied AC power cord 220 230 V AC 50 Hz AEP model 240 V AC 50 Hz Australian model With four R6 size AA batteries 6V DC Dimensions Approx 265 137 69 mm w h d 10 1 2 5 1 2 2 3 4 inches incl projecting parts and control with carrying handle pushed in Mass Appro...

Страница 2: ...together since it s supply two pieces in one package as a spare parts mark mark white white only CF2 CF3 CF4 mark mark CF3 CF2 CF4 Notes on Chip Component Replacement Never reuse a disconnected chip component Notice that the minus side of a tantalum capacitor may be damaged by heat SAFETY RELATED COMPONENT WARNING COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS...

Страница 3: ...e occurs wipe the battery compartment with a soft cloth before inserting new ones House Current See Fig B 1 Connect the AC power cord supplied to the AC IN jack of the radio 2 Plug into a wall outlet Operating the Radio 1 Press OPERATION to turn on the radio 2 Select a desired band and tune in a station using TUNING TUNE tuning indicator lights up when a station is tuned in 3 Adjust the volume usi...

Страница 4: ...d battery case 3 BTP 3x16 2 BTP 3x16 4 BTP 3x16 5 cabinet rear 1 6 1 BTP 3x10 5 button power 4 Removal the solders CN401 BLK BLK BRN 6 POWER board 3 CN401 2 Set Cabinet Rear Power Board Main Board Led Board Setting the Pointer Note This set can be disassemble according to the following sequence 2 1 CABINET REAR ...

Страница 5: ...TP 3x10 9 claws qa MAIN board 5 BTP 2 6x5 6 LED board 2 knob band 3 chassis 0 4 Removal the solder 1 rack pointer rack pointer 2 pointer Setting the Pointer A 1 Turn the Knob Tuning in the direction of A until it is stopped 2 Place the rack as shown in the figure 3 Mount the pointer ...

Страница 6: ... ELECTRICAL ADJUSTMENTS SW SECTION BAND switch SW telescopic antenna terminal 12pF AM RF signal generator 400Hz 30 AM modulation Output level as low as possible set 16 Ω set v jack EPJ1 level meter Repeat the procedures in each adjustment several times and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors MW IF ADJUSTMENT Adjust for a maximum reading ...

Страница 7: ...86 5 MHz CT1 3 109 5 MHz FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter L8 L9 86 5 MHz CT1 2 109 5 MHz Adjustment Location MAIN BOARD FM SECTION BAND switch FM CT5 SW TRACKING ADJUSTMENT L6 SW TRACKING ADJUSTMENT CT1 4 MW FREQUENCY COVERAGE ADJUSTMENT L4 FM FREQUENCY COVERAGE ADJUSTMENT CT1 1 MW TRACKING ADJUSTMENT L8 9 FM TRACKING ADJUSTMENT T1 MW IF ADJUSTMENT CT1 2 FM TRACKI...

Страница 8: ...3 1 677 382 11 11 11 11 11 11 1 5 CT6 C6 C41 L7 SW OSC L6 SW ANT CT5 CV1 TUNING ANT1 FM SW TELESCOPIC ANTENNA C40 C5 1 15 1 3 16 30 BLK WHT BLK L8 L9 CT1 2 CT1 3 CT1 4 CT1 1 2 3 4 1 ACJ1 AC IN EPJ1 v S401 OPERATION ON STANDBY DRY BATTERY SIZE D IEC DESIGNATION R20 3PCS 4 5V C402 SP1 SPEAKER BLK BLK BLK WHT BRN D301 TUNE BLK BLK WHT BLK RED CLEAR L1 MW FERRITE ROD ANTENNA 3 2 5 6 1 4 CLEAR RED BLK ...

Страница 9: ...nt for repair Total current is measured with power on Power voltage is dc 4 5 V and fed with regulated dc power supply from battery terminal Voltage is dc with respect to ground under no signal detuned condition no mark FM MW SW 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 Note The components identified by...

Страница 10: ...NOB TUNING BLACK DARK BLACK 23 3 043 338 11 KNOB TUNING WHITE 24 3 045 680 01 SPRING TUNING 25 3 043 336 01 SHAFT TUNING 26 7 671 112 11 BALL STEEL 27 7 685 534 14 SCREW BTP 2 6X8 TYPE2 N S 28 3 049 870 01 WOVEN VOL FABRIC NON 29 3 831 441 99 CUSHION 30 3 363 397 01 DRUM B 31 3 363 366 11 SPRING DRUM SP1 1 529 676 11 SPEAKER 10 2cm 0T401 1 435 513 11 TRANSFORMER POWER R R 5 1 CABINET FRONT SECTION...

Страница 11: ...C40 1 104 732 11 FILM 390PF 5 100V C41 1 136 682 11 FILM 0 0039uF 5 100V FILTER CF1 1 567 177 00 FILTER CERAMIC CF2 1 577 600 81 FILTER CERAMIC CF3 1 577 600 81 FILTER CERAMIC CF4 1 577 600 81 FILTER CERAMIC VARIABLE CAPACITOR CT1 4 1 151 679 11 CAP VAR CV1 4 1 151 679 11 CAP VAR TUNING TRIMMER CT5 1 141 354 21 CAP TRIMMER 10PF CT6 1 141 354 21 CAP TRIMMER 10PF DIODE D1 8 719 800 76 DIODE 1SS226 I...

Страница 12: ...0 25V C402 1 126 927 11 ELECT 2200uF 20 10V C403 1 163 021 11 CERAMIC CHIP 0 01uF 10 50V C404 1 163 021 11 CERAMIC CHIP 0 01uF 10 50V C406 1 126 925 11 ELECT 470uF 20 10V CONNECTOR CN401 1 568 271 11 SOCKET CONNECTOR 5P DIODE D401 8 719 031 85 DIODE 1N4002L D402 8 719 031 85 DIODE 1N4002L JACK EPJ1 1 563 836 21 JACK v JUMPER RESISTOR JC402 1 216 296 00 SHORT 0 COIL L401 1 410 294 11 INDUCTOR 38uH ...

Страница 13: ... 17 MEMO ICF 703S ...

Страница 14: ...ersion allows you to jump to the revised page Also clicking the version at the upper on the revised page you to jump to the next revised page Ver Date Description of Revision 1 1 2001 09 Cabinet Color Addition DARK BLACK SPM 01034 1 0 2000 04 New ...

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