Question about Grundig S350 AM/FM/SW Radio

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No sound after dropping S350.

This was a present several years ago...one of my favorite radios, and I have many. A few months ago, I knocked into the table on which the radio sat. It fell maybe 2 feet, straight down on its face. Well, there was absolutely NO visible damage to the radio. The knobs still turn easily, not even a scratch. I think that the way it fell, the impact was spread evenly among the knobs. Now here's the good news. EVERYTHING WORKS! It turns on, the LCD display works as always, I can tune stations etc. However, there is TOTAL silence from the speaker. Not even static. Nothing comes from the earphone jack either. Yet, the LCD shows full signal strength. I'm leary of getting it repaired since that would could as much as, or more than, the radio is worth. I've thought of selling it on ebay for parts...hell even the knobs could be valuble to someone. But before I do that I thought I'd try this site first. Maybe someone knows of a book on repairing radios? Might be kinda fun opening it up and trying. Any help would be greatly appreciated. Thanks!
Robert

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Probably one of two things:

The dropped caused the speaker leads from the PCB to Speaker to disengage (check the earphone jack, too... 'cause it is in the circuit)

or

The bounce cause the Audio amplifier IC to become desoldered from the PCB.

Posted on Mar 06, 2009

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I have used my Grundig S350 radio almost daily, for the past 6-7 years. I went on vacation for 10 days. When I returned home, I turned on the power, lights light up, etc., but no sound...no matter how...


Hi
Its microcomputer chip may have hanged. Just make a reset ans see whether it helps you. It must help you, i"m sure. To reset it;

S350 incorporates with micro computer chip (the component that

controls how the radio operates). If the radio has been subjected to

abnormal environmental conditions, the micro computer chip may
hang up and the following symptoms may appear

The display shows nothing and the radio cannot be turned on by
pressing POWER & SLEEP button.

The display shows random characters or does not work properly

although the radio can receive stations normally.

In these cases, you might need to reset the radio. To reset the

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remove the batteries from the battery compartment. Insert a

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OK.

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When you turn on the radio or select a wave band the display shows the last frequency you tuned in. That gives you 3 frequencies: One for the AM nd, one for the FM band (and maybe 3 for SW.
That does not look like much but there is nothing you can do about it. Sorry. It does not have Autamatic Tuning System, nor memory locations to store favorites stations. The portable Grundig/Eton such as the G5, G3, G8 have a plethora of memory locations and ATS.

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http://www.nws.noaa.gov/nwr/nwrtest.htm

http://www.nws.noaa.gov/nwr/nwrwarn.htm#B

http://www.crh.noaa.gov/lsx/?n=nwrfaq.

Hope this helps!

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Dropped my portable grundig s350. Stopped working


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Grundig S350 not powering on


Is there any easy self-fix that can be done to get the radio working again?

Nope. I'll bet you have some corrosion inside the switch itself.
Unless you can disassemble that you will have to send it in. If the switch had metal contacts, you could try just a tiny shot of cleaner in the switch, then work it off and on.

If you are able to get to the switchs' contacts, you can short those and see if the radio powers up. Just make sure that you have the right connections.

Bad idea bout wpraying it down with cleaner. If that suff gets in the coild or other parts like the tiny tuning capacitor, it can melt together inside, or at least cause it to be off frequency.
Good luck,

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Failure of radio to turn on


It sounds like a component on the circuit board is heating up. Open the radio up and check if anything is overheating, if so replace the defective part.

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Grundig S350 digital display


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