Question about Navman F20 GPS Receiver

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Sound goes after a few mins driving

Satnav f20 works fine apart from the sound, that works for only a few mins then goes very crackly then sounds goes completly please

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Posted on Jun 03, 2009

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F20 power port connection broken in unit.

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So, before you throw away a sat nav with this problem, contact me and I can fix it for you, or, alternatively I will offer to buy the broken unit from you.

My Email address is


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I had a similar problem with my Navman F20 (no sound through speakers but OK on headphones, through the T1 module). When I opened the back up, I found that the speaker connector had come loose from the PC board - it looks like it's a **** fit anyway.

Undo the two screws holding the case together and gently prise the two shells apart, I used a broad bladed kitchen knife. I found that the speaker plug had fallen out of the socket, popped it back in and Bob's ***********'s brother.

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