Vu Duo Clone PSU Pics

[Rodbouy]

I have so far had dealings with both. I have a local supplier.

3 mates bought Original VU Duos and 1 was fcked but was replaced right away and not had a issue since.

Since then I sent to to Tina at yaoxcin for duos and thats been about 2 months, fingers crossed nothing yet.

But I am tempted to go open them up and have a swatch now, just to see how they are.

[IAmATeaf]

My, my, you are a gambler then. Even worst than me - if you saw all my posts first and the problems I was having before you ordered.

The state of your PSU is similar to mine - if not worst. The replacement PSU looks shabby, but does not have the same level of corrosion.
Having said that I have just looked at the tranny as per your pic and even the new one has some corrosion here.

If we you have that level of corrosion that you can physically see - what about the rest that you can't.

Components like the tranny are effectively sealed, it the resistors and caps that are most likely to suffer as far as I know. Also from what I can see the corrosion has occurred after the PSU had been assembled which is probably why when the people making them test them they are fine.

Stored is damp moist conditions, they probably get another quick test when they are put in the box, we are the people who then effectively put them through their paces.

[DOUGALMCD]

Maybe you should give the psu a good clean with a pcb cleaner .

[IAmATeaf]

Maybe you should give the psu a good clean with a pcb cleaner .

I think the surface grime just makes the PSU look grimey but doesn't cause any probs so am not intending on cleaning it but am going to give it a full look over this weekend.

I'm also going to pull that rusty tranny off to examine the legs that have been soldered to see what sort of state they are in. I'll also pull that sloping heatsink and sort out the touching link.

I won't know until this weekend but it does look to me like some of the links are there to earth the heatsinks. I suspect that in the original the heatsinks would have tabs which would get soldered to the PSU board. On the clone some of the heatsinks have wire legs but the main large one doesn't, so the 3 links under that heatsink are there to earth it but the only thing helping to keep the heatsink touching the links is a piece of sticky tape, you can just make out the tape in picture2.

[DOUGALMCD]

Keep us posted mate and by the way thanks for pics.

[meggiedude]

Can't figure how to split the flex ribbon cable mounts which connect the front display and card reader to the MB. I guess they can be split, but can't see an obvious way and don't want to break them..

[happy_highlander]

Just to let you guys know - I have a bunch of 330 uF caps and I intend to swap the C807 cap on the motherboard this weekend.
I have the unit dissembled, although can't figure how to split the flex ribbon cable mounts which connect the front display and card reader to the MB. I guess they can be split, but can't see an obvious way and don't want to break them..
So I've just manoeuvred all the boards/components about and will desolder/replace/resolder in situ.
Fingers crossed and all that.

~~~~ me meggie do you fancy building me a box while your at it

[DOUGALMCD]

Yes good luck mate keep us posted.

[meggiedude]

~~~~ me meggie do you fancy building me a box while your at it

.
Well its probably worth pointing out that in a prev occupation I used to be an agricultural engineer. Designing and in come cases constructing everything that hangs off the back of a Tractors PTO shaft. As a consequence I am more use used to MIG, TIG and arc welding than f*nnying around on an itsy-bitsy PCB
So if you want a new Plough or Dutch Harrow I'm your man.

If this all does not go well. I'll be taking a gas cutting tool to this pile of sh*te

[IAmATeaf]

I had a look at those ribbons on my box and couldn't see any sort of latch or flip up lever that would normally be there. Thought they looked just like friction connectors, so you just push them in and pull them out but I accept no responsibility

[meggiedude]

I had a look at those ribbons on my box and couldn't see any sort of latch or flip up lever that would normally be there. Thought they looked just like friction connectors, so you just push them in and pull them out but I accept no responsibility

Ok Thanks

[benny/9]

has anyone tried a genuine psu board in there clone
i have had both clone and now a genuine duo,and both
have never gave a problem,

[digicon]

has anyone tried a genuine psu board in there clone
i have had both clone and now a genuine duo,and both
have never gave a problem,

Same here.

[IAmATeaf]

Yes, well that settles it then. I'm not removing the ribbons. I have managed to juggle things around so I can get to the bottom side of the PCB anyway, so should be OK.

Do you have a solder sucker? As that will make the job so much easier.

[damiensk]

have looked at the pics and compared to my clone, no screws have any corrosion and the transistor legs are fine.
had a few months now, and had no probs atall
thanks benny/9