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Old 6th April 2008, 12:31 PM   #1
JoergST is offline JoergST  Germany
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Default Problem with Panasonic CQ-C5300N Car Radio

Hello, before I tell you the problem, I will say, that my english is not so good and sometimes I have the problem that the english verbs are missing.

OK now the problem:

I have a Car Radio from Panasonic CQ-C5300N and there was an IC defect. It was an TDA 7560 IC for the boxes output. I replaced it. Every 10 minutes the radio turn off himself. And I don´t know why. There is nothing hot or something else.

Is there something that I must reset or something like that?

I am a little bit confused. Please when you answer, keep it easy, because my english understanding is not so good. I am from germany.

Thank you
Regards Jörg
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Old 6th April 2008, 05:52 PM   #2
jol50 is offline jol50  United States
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Do you have it on a bench, or are sure it is not wired wrong or shorted? I mean sure it is something inside the deck?

I am not familiar with protection circuits in those. I guess I would check power voltage first, and power to the IC to see if it is correct. Maybe something from or to the IC is bad, just a guess?
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Old 13th April 2008, 08:37 AM   #3
JoergST is offline JoergST  Germany
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Hello, I didn´t find the mistake in the radio. I put out the TDA but the mistake is the same. After 10 minutes the radio turn off with the massage "see you". I am really angry about the massage
In german we say not every time you can win So I will sell it by ebay and perhaps somebody will find the mistake or what else.

Or is here anybody who works with panasonic eqiupment and has got an idea?

Wish everyone an good sunday.

Regards jörg
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Old 13th April 2008, 06:12 PM   #4
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There's usually a voltage regulator IC in newer stereos.

Have you found any other IC's in there?

If you find it, look up the part number on google.com to find a datasheet for the IC, then read the datasheet so you know what volts to measure at IC pins.
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Old 13th April 2008, 06:59 PM   #5
JoergST is offline JoergST  Germany
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There are also some ICs, but I think my knowledge is to low for that work. So the car radio is in ebay. Thank you for your help.

Regards Jörg
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