Repair my xp Gmaxx 2 ?

[nicolas8160]

Hi everybody

I just purchased a defective GMAXX 2.

I'd like to try the repair. Can you tell me what use is the area that burned?

I notice that on the other models, it is not . Do you think I can short-circuit this area? I'm measures and the little piece that exceeds the electricity get from 11V. Sorry for my english I use a translator .

http://www.hostingpics.net/viewer.ph...206IMG0255.jpg

[N@SKO]

This is WI FI Headphone transmitter.You can remove it him!

[Skippy]

Agreed, that is the RF transmitter for the cordless headphones. Removing the burnt IC's alone may not be enough. The carbon residue from the fire may also need scraping away.I think there are two almost identical circuits, giving two different frequencies, which drive a single antenna. It is possible the unburnt section still functions.You may need to cut pcb tracks to isolate the burnt area.

[nicolas8160]

Thank you for your answers, that's what I hoped. the problem is that my circuit is always cut, I do not know which was connected to the red trail on the next picture.

I think the red track feeds both. I would have to cut the circuit TX2 but I must replug the TX1.

http://www.hostingpics.net/viewer.ph...pisterouge.jpg

[Skippy]

I recommend cleaning the burnt area with some strong solvent, such as cellulose paint thinners, acetone etc. This will allow you to see more clearly the tracks and damage. I think the power supply to the transmitter circuit is likely to be a regulated low voltage, like 3V or 5V, not 11V. I don't know how many signals will connect the transmitter to the rest of the circuit. Possibly two ENABLE lines - one for each TX, and the audio drive signal. The vertical track that is above 'TX2' on the new picture, may be audio.

[nicolas8160]

You were right for the 12 V. I just called the company XP, and I was told it was because of a short circuit in the cable with the 12 V
Finally I told them to return the Product.

Thank you for your answers

[homefire]

First thing I would do is figure out what ta hell happened.

Those boxes are your clock blocks Clock Crystals. They are not high DC Voltage.

What got into there that could do that damage?

Some thing some place in that area was pulling some major current to heat up like that.

Did a wire get loose and touch Ground some place?

What ever happened took some time cooking to do that damage.

[karan musti]

Hi everyone I'm new to the forum members I hope that we can communicate through translation program We guarantee that finished second detector malfunction gmaxx trying to repair
Do you have a diagram of this device?

[karan musti]

I do not know what it is on the 5-pin electronics card has 2 integrated in the other Laub writes writes another 105k on the c6k found him writing the name of the original ts461 105k = ts461 C6K =? Laub =? thank you in advance for your help

[karan musti]

I'll be friends with the knowledge of what solved the problem of integration in our help we can find

[golfnut]

those are vhf Tx ics on about 450MHz there was an article on here with then on, they are freely available.

The printed loop on RHS is the printed antenna.

The pcb looks to have delaminated.

You could replace the chipas and add a wire to the 12v

S