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SONY ICFC723/L
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of SONY ICFC723/L Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Text excerpt from page 6 (click to view)
SECTION 3 ELECTRICAL ADJUSTMENTS
AM Section Band button : AM (ICF-C723) : MW or LW (ICF-C723L) Volume : MAX
AM RF signal generator Put the lead-wire antenna close to the set.

• Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. ( ) : AEP, UK, Italian, Australian, E model only
AM IF ALIGNMENT Adjust for a maximum reading on level meter. T1 455kHz AM <MW> FREQUENCY COVERAGE ADJUSTMENT Reading on digital Adjust parts Frequecy display voltmeter L6 530kHz (531kHz) 2.5 ± 0.1V (ICF-C723) 2.65 ± 0.1V (ICF-C723L) Less than 11.0V Standard 9.5V (Less than 10.0V) (Standard 9.0V)

30% amplitude modulation by 400Hz signal. Output level : as low as possible

FM Section Band button : FM Volume : MAX
FM RF signal generator 0.01µF set 22.5kHz frequency deviation by 400Hz signal. Output level : as low as possible FM ANT IN

JW13

confirmation

1,710kHz (1,602kHz)

AM <MW> TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L3 :ICF-C723 580kHz (621kHz) L3–1 :ICF-C723L CT1 1,490kHz (1,404kHz)

ICF-C723L
level meter
LW FREQUENCY COVERAGE ADJUSTMENT Reading on digital Adjust parts Frequecy display voltmeter More than 2.2V confirmation 153kHz (Standard 3V) CT4 279kHz LW TRACKING ADJUSTMENT 9.0 ± 0.1V

8Ω set

speaker terminal
[MAIN BOARD] (Conductor side)

digital voltmeter

Adjust for a maximum reading on level meter. L3 – 2 162kHz CT2 243kHz

FM FREQUENCY COVERAGE ADJUSTMENT Reading on digital Adjust parts Frequecy display voltmeter L5 confirmation 87.5MHz 108.0MHz FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L4 87.5MHz CT3 108MHz 3.0 ± 0.1V 10 ± 1V

Adjustment Location
C55

: Main board (See page 8)

6

5

4

3

2

1

W705 C15

–6–

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