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SONY ICFS79/V
Service Manual


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

Description of SONY ICFS79/V 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 5 (click to view)
SECTION 3 ELECTRICAL ADJUSTMENTS
0dB=1 µV [FM/TV Section] Setting: BAND switch: FM1 or TV
FM RF SSG 0.01µF set level meter + –
FM FREQUENCY COVERAGE ADJUSTMENT L8 Confirm Adjust for a reading on digital voltmeter. 87.5 MHz (TV 2 ch) 2.3 ± 0.1 V (1.0 ± 0.1 V) 108.0 MHz 8.5 ± 0.5 V (12.5 ± 0.5 V)

Note: Not use the FM RF signal generator in this adjustment.

(

): ICF-S79V

FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L6 CT4 87.5 MHz (TV 2 ch (59.75 MHz)) 108.0 MHz

± 22.5 kHz frequency speaker terminal deviation by 400 Hz FM lead wire antenna terminal signal Output level: as low as possible

( ICF-S79L only

): ICF-S79V

[AM (LW/MW) Section] Setting: BAND switch: AM (MW) or LW
Put the lead-wire antenna close to AM RF SSG the set. set 30% amplitude modulation by speaker terminal 400 Hz signal Output level: as low as possible
digital voltmeter MAIN board TP (VT) + –

LW FREQUENCY COVERAGE ADJUSTMENT Adjust for a reading on digital voltmeter. CT5 153 kHz 2.3 ± 0.1 V

level meter + –

Confirm

279 kHz

8.5 ± 0.5 V

Note: Not use the AM RF signal generator in this adjustment.

ICF-S79L only
LW TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L5 (LW side) 162 kHz CT2 243 kHz

AM (MW) FREQUENCY COVERAGE ADJUSTMENT Adjust for a reading on digital voltmeter. L9 531 kHz (530 kHz) 2.8 ± 0.1 V

Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors.

Confirm 1,602 kHz (1,710 kHz) 9.5 ± 0.5 V Note: Not use the AM RF signal generator in this adjustment.

(

): ICF-S79V

ICF-S79V only
TV FREQUENCY COVERAGE ADJUSTMENT Adjust for a reading on digital voltmeter. L2 Confirm WEATHER 2 ch TV 13 ch 1.0 ± 0.1 V 10 ± 0.5 V

AM (MW) TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L5 <MW side> CT3 621 kHz (590 kHz) 1,395 kHz (1,490 kHz)

< (
AM IF ADJUSTMENT

>: ICF-S79L ): ICF-S79V

Note: Not use the FM RF signal generator in this adjustment.

ICF-S79V only
TV TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L1 CT1 WEATHER 2 ch (162.40 MHz) TV 13 ch (215.75 MHz)

Adjust for a maximum reading on level meter. T2 455 kHz

ICF-S79V only
TV IF ADJUSTMENT Adjust for a maximum reading on level meter. T1 10.7 MHz

–5–

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