Is there a super techie who can tell me whether the 12v car adapter from my old eMap puts out the right voltage through the right pins for my Quest. The plugs are identical apart from the eMap only having 2 pins
Quest power supply
- Thread starter (RIP) Perryhill
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Is there a super techie who can tell me whether the 12v car adapter from my old eMap puts out the right voltage through the right pins for my Quest. The plugs are identical apart from the eMap only having 2 pins
brassmonkey001
I should change this
I think the Quest only requires 5v. If you put 12v through it you'll cook it. That's if I understand this electrickery correctly. I'm sure someone more knowledgable will be along shortly.
Thanks, i know the Quest needs but 5v but I'm not sure what the eMap adaptor outputs as it runs on two AA batteries which = 3v I don't know if the mains/car input is only 3v as well - which wouldn't power the Questbrassmonkey001 said:
MikeS
Guest
What ampage fuse would be required for a Quest powered off an aux power socket? There is a 4amp in mine- would that be too high/low?
Fanum
Toubab
The emap external supply (according to Garmin technical pages ) is 3- 3.3v, so no, that wouldn't run a quest.
Maplins do lots of cheap 12v adaptors that you could rewire to the emap cradle to use their pins, but don't assume that just'cos the plug looks identical that they're wired the same.......IIRC, looking at the back of the Quest with the top upwards, the first pin is the ground, the second is the live input (though this may well be the other way around ) and the next three are data and speaker pins.
Do a search of the Garmin site or this forum and you'll find the pin diagram fairly easily
MikeS...4a is too high.....it only needs a 750ma I think, but most people put a 1a fuse in.
4a definately too high
Maplins do lots of cheap 12v adaptors that you could rewire to the emap cradle to use their pins, but don't assume that just'cos the plug looks identical that they're wired the same.......IIRC, looking at the back of the Quest with the top upwards, the first pin is the ground, the second is the live input (though this may well be the other way around
) and the next three are data and speaker pins.Do a search of the Garmin site or this forum and you'll find the pin diagram fairly easily
MikeS...4a is too high.....it only needs a 750ma I think, but most people put a 1a fuse in.
4a definately too high
MikeS
Guest
Cheers Fanum
I just installed the cradle last night (in between bouts of pissing rain) and after it didn't power up the first time, i noticed the fuse in the aux supply was blown (it was a 5 A) and the lowest spare I had was a 4 A. I'm planning on getting the Quest supply hard wired by Motorrad soon though.
Sorry, slight change of subjet- If I'm going to use the aux supply for charging equipment in the future (camera, mp3 player etc) would a 4 A be ok or is that still bit high?
I just installed the cradle last night (in between bouts of pissing rain) and after it didn't power up the first time, i noticed the fuse in the aux supply was blown (it was a 5 A) and the lowest spare I had was a 4 A. I'm planning on getting the Quest supply hard wired by Motorrad soon though.
Sorry, slight change of subjet- If I'm going to use the aux supply for charging equipment in the future (camera, mp3 player etc) would a 4 A be ok or is that still bit high?
RAM-man
depleted member !
Fanum said:MikeS...4a is too high.....it only needs a 750ma I think, but most people put a 1a fuse in. 4a definately too high
Yep its too high.
As a guide, the QPAC versions and garmin adaptor kit uses 1.5 Amp.
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