vestal help please

[cossiejay]

I have just been given 2 alba 32880hdf tvs on will only come on if warmed up with a hair drier on the power board I have replaced most caps but still needs warming up if left pluged in it will come straight on until it is unplugged the power board is a 17pw26-4
the second even thought they are the same model have completely different boards this has a 17ips10-3 power board when plugged in the stand by light comes on when I hit power the light goes to blue and red flashing and I can do nothing with it until I turn it off and the mains both are English 240 volt tvs any help welcome

[vinceroger69]

Re: vestal help please

As you have said you have replaced most of the capacitors did you do the start up capacitors on this psu if your not sure up load a clear picture and we can point them out. The second board im not sure on have you tested all the diodes etc.

[stj]

Re: vestal help please

startup caps are small ones.

[ReeceyBurger123]

Re: vestal help please

Here is how to fix them:

17PW26,
Very common issue is bad capacitors please check the fourm for how to diagnose badcaps. The smaller ones and the ones in a group of 3 under the main mother board plug should be changed.

17IPS19-3,
Common issue with these is blown output diodes which when failed wont let the Tv turn on (protection circut engaged) you will need a DMM to test have you got one ? Or the software for the Tv has corrupt meaning mainboard fault you will need to re-flash the firmware if so.

[vinceroger69]

Re: vestal help please

https://www.badcaps.net/forum/showth...ight=17ips10-3

[cossiejay]

Re: vestal help please

just had a look at the start up caps they apper good but tomorrow I will change them anyway I have had ones before that look ok but are not if it is left plugged in its fine but if unplugged I have to get the hair drier out again to get it to come on

[cossiejay]

Re: vestal help please

changed all but one a 2700uf as I don't have any and no change when pluged in it takes 10 mins before standby light comes on then another 5 mines to turn on

[cossiejay]

Re: vestal help please

tested all diodes removed one leg and tested none shorted out

[ReeceyBurger123]

Re: vestal help please

Does heating the psu make it turn on faster ?

[cossiejay]

Re: vestal help please

yes it does make it turn on faster if warmed up

[vinceroger69]

Re: vestal help please

can you try heating a certain area a time to narrow down the area that makes it turn on faster, with this fault i use a empty cardboard kitchen roll tube and aim the hot air down it so i can heat little areas at a time.

[ReeceyBurger123]

Re: vestal help please

Why didn't you change the 2700uf thats the bloody 5vstby cap lol and you say you have checked the rst esr wise I willing to put a bet you have a bad cap problem here.

[diif]

Re: vestal help please

I repaired a 17PW26-3 last night. Bulging 2700uf cap along with others. As Reecey says, replace it. Often caps in the Vestel PSUs aren't visably failed but have a high enough esr to cause issues.

[cossiejay]

Re: vestal help please

the 2700uf as not been changed as I have none to change it with so I have ordered some