Autocom part 57 (GPS isolated adaptor)

[biggsie]

Hi guys, I'm new here, but I have been doing a lot of searching of the forums over the last few weeks and thanks to you I now have my Garmin quest mounted, autocom installed, a nippy normans screen with tobinators, (being 6' 6" it is 200% better than the standard one). But now I need your help once more. When I fitted the GPS to the autocom I got what I think is engine Rf interference (a wine) in the headset, Autocom said I needed part 57 (red black box) which I got and fitted. While it did cut out the wine, it also cut the volume by 50%!! Now even on max the sound is distant. My friend has the same set-up on his Blackbird and also had the same problem. Anyone else had this problem and knows of a cure or what I have done wrong??

Biggsie

ps. Off to Assen on Thursday for the Motogp...any GSER's going?

 

[Fanum]

Not taking the pee, but you have tried turning the GPS up haven't you???

(push and hold the sound button, then increase it on the four way rocker)

Funnily enough, I have the opposite problem.....if i plug my Quest in, i have to remember to turn it right down or it's way too loud.....but that's through Ultimate ear monitors.

Are you using helmet speakers?

 

[biggsie]

Yeah tried the volume on max and still quiet, but without the red and black box volume on 5 is more than loud enough even with ear plugs.....just I get that annoying whine. I have a Autocom kit 3 linked into a system 5 helmet with speakers in the ear "pockets", everything else is fine (MP3, bike to bike...ect). I'm ringing autocom today to see if they can offer a solution......

biggsie

 

[biggsie]

If anyone is interested I Got onto Autocom, apparently part 57 (red black box) cuts not only the whine, but also the volume. (Be nice if they said that in the documentation). Apparently if you want to regain the volume you can send your autocom base unit back to them and they will "up" the volume on the phone connection. Apparently the low output volume of the quest compared to the 2610 is the root of the problem.

I am going to try a "Boosteroo" which is a gizmo for boosting volume between MP3 players and head phones to see if I can regain some volume without returning my unit to Autocom

 

[Pukmeister]

I had a similar problem with a bike-powered Autocom and bike-powered BM Motorrad Nav 2 GPS, whenever the GPS 'spoke' I got weird noise instead of speech. The red/black box (part 57) does the trick nicely and the audio level is spot on now with no noise. As the GPS is near-identical to the 2610 I guess they are telling the truth.

Why does the GPS tend to 'speak' whenever I'm receiving a 'bike-to-bike' message, thus cutting off the message for ages. Does anyone know if you can alter the length of the audio mute on Autocom Pro-7 sport units ?? Mine remains muted for ages once the GPS has stopped speaking, a real annoyance.

 

[ianf]

Not sure about the quiet quest side of things...

My UltimateEar monitors turned up last week and it finally prompted me to wire everything up properly taking a feed off the fusepanel with one of BlackDragon's widgets. (And some prior convincing from Steptoe that the fusbox lid really does fit thru the frame rails). 2 hrs of removing the old powersocket/autocom feed off the abs, and putting it all together nicely again got everything working a treat.

<b>Except: Now the quest is way too loud.</b>

Even on '1' I have to cut the signal right down to 5-10% on the UE volume to get it
right (no distortion,busted eardrum, CPU whine, or spark whine).

If I use the Zen micro player I can get a nice balance at about 80% on the UE monitors and 60% on the zen, but the quest if turned on would be making a terrible racket.

It's Quest->touratech lead with the power plug chopped off and wired to switched source.

Audio cable runs next to it, I've chopped socket off it and soldered to autocom screened lead, junction at the LHS of the headstock (touratech lead not shielded, just 2 wires.) Polarity preserved from both ends i.e red was 'tip' of the socket, blue socket barrel->autocom shield. All into socket A of part-57, then into the phone port on the active-7. Tried moving the audio lead away from the motronic/abs pump, no different. It sounds like 50/50% engine and quest cpu noise.

It was doing all this thru the Autocom speakers, but it's way more annoying thru the monitors. If you turn them down then the Zen's too quiet.

I'd reference all this to the phone, but can't find the sony lego block around the house. Can't get them in maplins easy these days either.

I think the only route is to put something inline from the quest to attenuate it and get the level closer to that of the phone/zen.

Any bright ideas? If I get this right the boosteroo goes on here.

Ian

<b>EDIT: The whine was the autocom right up against the battery. Moved it back an inch and it's fine, but will need wrapping plastic.
The noise from the quest is definitely coming out of it, as it changes as it does stuff, and doesn't get louder as you whack it up to say '4'.

Anyone got a circuit diagram for a simple volume pot on a 2 wire signal.?</b>

 

[Aitch42]

Hi I had the same problem. Apparantly Autocom have been having some problems with the mono to stereo leads that you use to connect the Garmin to the Isolater box. I phone them and a really helpful guy talked me through the problem. He said that they were having to cut the ends of the Garmin lead and the Autocom lead and solder them together - he offered to send me the wiring diagram or I could take it along and they would do it for 15 squids.

I didn't need to as when i checked I had the lead in the wrong way round - Mono end to garmin, Stereo to isolator.

Good luck

 

[Tobers]

IanF - buy the Ultimate Ear volume control thingy.

Ah - sorry - looks like you may have thought of that already as your other bits are OK, just the Quest is too loud.

You can get the phone adaptor blocks from www.sensorcom.com by the way.