Question about Sony ICF-SW1000T AM/FM/SW Radio

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FM distortion Changing IF filters for more narrow type (230kHz bandwidth) the set is having slightly distorted sound on exact frequency (on medium to weak signal strength), but no distortion when moved 0.05MHz (one step) up. The best sensitivity is on the exact tuned frequency and now I can not decide if it is due to PLL oscillator frequency alignment or FM tracking alignment problem (stereo comes O.K.).

Posted by Svetozar Djonin on

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Rod Wallberg

  • 494 Answers

SOURCE: My sw77 has distortion on fm stations when there

A bit late on this..... Sounds like a fault with the electrolytic capacitors. This can be repaired, please email me.... Rod ([email protected] )

Posted on Jul 16, 2010

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Rod Wallberg

  • 494 Answers

SOURCE: Sony ICF ICF 77 Receiver has intermittent Low

Usual problem of these receivers is faulty capacitors. Recommend replacement of all surface mount capacitors and alignment. Contact me .... poikaa(at)yahoo(dot)com

Posted on Feb 06, 2012

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SOURCE: Sony ICF ICF 77 Receiver has intermittent Low

send to a service of sony repairs mail: ([email protected]) in north Spain

Posted on May 06, 2017

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I found this bit of info for you but ill keep looking and let you know what i find out.
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Usual problem of these receivers is faulty capacitors. Recommend replacement of all surface mount capacitors and alignment. Contact me .... poikaa(at)yahoo(dot)com
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The following is from the Operation's Manual:


FM Modulator Setting
You can adjust FM Modulator frequency and output level.
7 Frequency
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4. To cancel the FM Modulator Setting mode, press the POWER button again
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Note:
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