Humax 5400z just died

[Jay_x7x]

Hi

After switching my Humax 5400z off last night at the power source, I awoke to find when I switched it on the next morning nothing happend apart from a slight ticking noise. I have tried changing the fuse but that didnt work all I get is a ticking noise (no lights, nothing), I am wondering if it is the power supply. Anyway does anyone know where I would be able to purchase a power supply for my Humax.

Thanks

J

[bulmers]

Its probably a power supply fault. Id be going for the capacitors in the primary side of the power supply. Ive never worked on one of these before but if you could upload a picture if the power supply I could show you which capacitors to replace.

Theres probably 2 or 3 in the primary side (between the mains input and the transformer).

One of them will be rated at about 400v (Dont bother with this one). Change the other 1 or 2 smaller ones in the primary side and see if it comes back to life.

If that doesnt work, then its probably a capacitor. Or a diode(gone s/c or leaky) in the secondary side of the power supply.

[TonyO]

hummy powers supplys die young.

[bulmers]

Im sure though they can be brought back to life with a bit of guidance and some parts that will only cost less then a couple of £s. :D

I reckon ; a repair will be cheaper then a replacement PSU

[zad]

i have repaired loads of psu's before.

most of the time it only requires 3 componets and they cost less than £1 combined.

the stickies will tell you what parts mate.

[Jay_x7x]

I will be taken the hummy apart tonight and will provide some photos of the psu

cheers

J

[Jay_x7x]

Cant seem to find how to upload pics

[zad]

when doing an advanced reply click on the paperclip icon and add you files in the new popup window, make sure the image type is recognised ie jpeg

if they are not stick them in a zip file and post them that way

failing that pm them to me in zip format and i will post them up for you

[Jay_x7x]

http://HPIM0105

[zad]

the link does not work mate

[Jay_x7x]

For some reason its says I cant post attahments

[zad]

pm them to me, i dont mind posting them for you


make sure the files are not to big! this will stop you from posting them

also chack your posting rules (bottom left of this page) are you alowed to post atachments?

[Jay_x7x]

Still getting same problem trying to pm, I have taken the psu out of the hummy and once plugged in the thing called ZD3 which is a Z-diode 30V / 500mW is ticking and flashing red

Cheers

[zad]

ok, it should not do that

change zd3, r21, c9 and c13.

if this does not work change all the parts listed in the picture.

also check to see if the large cap (right hand side of the pic) see if the top is swolen, if it is you will need to change this as well.

thanks to humax zone for the pic!

[Jay_x7x]

Cheers, a trip to ******s tomorrow, will let you know how I got on.

Thanks

J

[Jay_x7x]

Just replaced the Z-diode and bingo now works.

Cheers for help

J

[zad]

if the zenner has gone more than likely caps are on there way out (mainly c9) it may be a good idea to change them all (especially if they have swollen tops)

however if it is working for the moment this is good news!

[EDGE]

I remember my PSU going,it was C9 that had blown,cost me 15p for a new one,and touch wood,its worked ever since,this was about 2 years ago.Bet the fooker blows now,oh well:D

[satscene]

If you`re not that confident around mains electricity here`s an option, uprated Humax 5*** range of Power Supplies @ £18.50, see here h**p://cgi.****.co.uk/ws/****ISAPI.dll?ViewItem&item=330126619400&ssPageName=ADME:L:LCA:UK:11 or do a search for item no. 330126619400.
Worked well for me.:D