Yes , but it won't start.

Have you measured the voltages on the I2C bus to see if it is completely hung?

Neil

hello die bogener!

two days ago my mx 4000 broke down and as i won´t get the spare parts til tomorrow (following your hints in the mx4000 thread), i started with my old mx3500, which broke down two years ago and wasn´t repaired, but replaced by the mx4000. my supplier had all the parts in stock, so i gave the 3500 a go.

your workshop is really great, made finding the fault and getting there so much easier!

the cap C12 on the mainboard was leaking and killed TZ8, which killed but12f in the powersupply...

thanks to your workshop the 3500 is working fine now again and tomorrow mx4000 will be the next on my workbench.

so, just wanted to say thanks, your effort is highly appreciated!

jens

I have an LX5500 that has these symptoms: -

The picture is ok when it first powers up (cold) but after a few minutes it gives a kind of echo on the left side of all images that varies in size with time.  First it gets bigger and then it slowly (20 min) goes completely and the picture is good.

Here's a picture Login to view image

Is this what you mean by this ?: - 

"The MX has vertical stripes on the left, visible on dark surfaces like an echo, the stripes are a little bit brighter than the black background

Replace R36, 1K 1W, (next to L3)

Replace C18, 10nf 250V

Replace C16, 10nF 250V"

I have changed R36 and C18 but cannot find a C16 on either the circuit diagram, parts list or the PCB !!  Changing the pair had no noticable effect.

I have also used freezer spray on the E/W drive IC and it's associted componenets (TR1 - TR3) and again nothing reacted.

All elcos have been changed.

Does anybody have any other suggestions?