Question about Garmin Nuvi 660 GPS Receiver

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About my garmin nuvi 660

For five days my internal speaker shut down while navigating. Since then I disconnect the bluetooth ;I reset from the back button but it still quit

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  • Garmin Master
  • 2,130 Answers

Make sure you don't have the sound muted. Have you tried plugging in a set of headphones into the headphone jack? If you can hear sound with the headphones, most likely, the internal speakers have failed. If you still can't hear any sound, the audio output stage on the motherboard has failed. In either case, you will need to send the unit back for repair. Be sure to have your serial number handy. Register it online https://my.garmin.com/mygarmin/marketing/register.htm
if you haven't already done so.
Hours:
Monday - Friday
8 a.m. - 7 p.m.
Central time (closed holidays)
1-800-800-1020 (U.S.)
1-866-429-9296 (Canada) or (913) 397-8200

Good Luck,
- Jim

Posted on Jan 23, 2008

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Yes, follow this sequence:
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Is the power button stuck in? if so try to flick it out.

Also if button is ok, have you tried to power it up with the charger lead plugged in and power on. If this works it could be a sign the internal battery has had its days. Replacement required.

Another thing is, is there a reset button on the back/bottom as it may have crashed and need the software to be reset.


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MacBook Pro is slow when disconnected with electric charging.


First step would be to Reset Your Mac's SMC
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Mac portables with user-removable batteries (MacBook and most MacBook Pros):

1.Shut down your Mac.
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Mac portables with non-user-removable batteries (MacBook Air and some late 2009 MacBook Pro models):

1.Shut down your Mac.
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3.On the built-in keyboard (this will not work from an external keyboard), simultaneously press and hold the left shift, control, and option keys while you press the power button. Release all keys at the same time.
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If you have a Mac Pro that isn't responding to the normal SMC reset as described above, you can force a manual SMC reset by using the SMC reset button located on the Mac Pro's motherboard.

1.Shut down your Mac.
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4.Just below the Drive 4 sled and adjacent to the top PCI-e slot is a small button labeled SMC. Press and hold this button for 10 seconds.
5.Close the Mac Pro's side door.
6.Reconnect your Mac's power cord.
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Hi:
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When I turn the receiver on, it shuts off after two seconds. I have had a similar problem in the past when speaker wires touched but this is not the case ,I also tried holding the power button down for...


It is an indication that you have a faulty output I.C. which automatically shuts off the unit to avoid further damaged.Like what you have said before you experienced that already when the speaker wire touched and then the unit shuts off in order to protect your output I.C. from damaged.
But the senario now is reversed.It shuts off to protect your speaker from damaged because your output I.C. was shorted.

I've advised you to look for a qualified technician to isolate the problem because it is quite technical.
Replacing the output I.C. and some resoldering for some dry joints on the board will cure the problem.

Thanks for using fixya.

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Help


Hi,

Take every single cable out of the unit, now power on the unit.

If the power protection still shows then there is an internal fault, usually a short or a component defect.

If it powers on ok, switch off and insert 1 speaker at a time and power on the unit until the protection mode comes on again, the last speaker you have put in has overloaded it for some reason, also as you are trying each speaker use the volume and bass controls to see if there is an internal overload.

Thats as much as I can offer you until you narrow the fault down to the unit or one of the speakers.

Cheers

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Disconnect speakers one by one and reset the unit each time. If the speaker is blown, or the wires are frayed, it will shut down the internal amp. Also check the fuse in the back of the radio first, it should be near the wire harness. Power cycle the unit as well, unplug it from the power source, plug it back in. Hope this helps.

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