So i installed an Xecuter 2.6CE(on a 1.6), and now the Xbox doesn't boot. It doesn't even turn on any lights, or the fan. What could have gone wrong? Could the board have been grounded? Any help would be appreciated!

Check this:
http://www.llamma.com/xbox/Repairs/1.6_Xbox_no_power.htm
Regards,
DarkMatter

you got it plugged in? Sounds stupid but iv done it loads of time

The link that DarkMatter posted above is valid. It happened to me once and I changed it out then it worked perfect. Its a little small to solder in but its doable.

I tried measuring that component with the multimeter, and this is what I got: one point got .4, one point got .4 something, and another got 4.65 and 4.85 (it jumped around). Is this blown?

Not sure I didn't measure mine. Also check your power supply to make sure it has power coming out of it. Most likely it is that part though.

What points would I measure?

I founf a diagram of the transistor. It looks like 2 is the one to measure.

[img=http://img405.imageshack.us/img405/2649/mmbtql3.th.png]

3 is the one you want to measure, the Collector (the lead that's by itself). Make the measurement from ground to the Collector and see how many volts it is. It should be a steady 3.25v, if it's under/over that or jumps around then it's bad.

It's putting out 0.11v. I guess I'm ordering it.

Thanks everyone!

I have replaced that chip 3 times in my 1.6 xbox and I'm still not getting a reading of 3.25V only 2.36V or thereabouts, could there be any reason for this, is the transistor the only part susceptible to this kind of damage in the 1.6 xbox? The full detail's of my problem are described here: http://www.smartxx.com/forum/thread.php?th...d=5674&sid=
Any help would be graciously appreciated.

Check my mini tutorial on another website. Check to see if the transistors you've already replaced are really at fault:
http://jansforums.jconserv.net/viewtopic.php?p=149#149
Please let us know what readings you get.
Regards,
DarkMatter

They measured 914 & 926 in the diode test and didn't register any MOhm's in the leakage test. They are labelled 3Dp which are BC856, they were recommended as an alternative to the MMBT3906 which I couldn't find any of. Got the BC856's from Jaycar.

Try measuring the following resistor:



It should measure zero ohms. Its connected between the collector of Q7C2 and pin 80 of the Xyclops IC. I'm assuming its there for protection.
Regards,
DarkMatter

Measured 0 Ohm's, well 0.2 of an Ohm. Are any of your test's valid for when the transistor is on the board? Because the diode test comes out lower and it measures 1.2 MegOhm in the leakage test.

Is it possible this transistor was originally damaged due to the LFRAME being shorted to the ground for extended periods? (http://xbox.bula.nu/resistor_install_1.6.asp).

That's about right.


The only valid test you might obtain, but may not be accurate, is the bias test. You cannot do the leakage test while the transistor is in circuit. Other components in circuit will give you false readings.


False readings as you obtained above.

Some how I don't think your problem lies in this transistor. It has to be something else. What it is I couldn't guess, but I'll keep looking into it further for you.
Regards,
DarkMatter