Mulja tv repair portal
Equipment Repairs => LCD TV forum => Topic started by: LEEDASH on January 31, 2012,11:05:00
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ALBA LCD32880hdf
Hi all i have the above model of lcd,was great until,it broke !!!! now just switches on for a matter of minutes,says no signal and does a count down from 5:00,then retires into standby mode.
Have opened the unit but no visable sign of burned or blown parts,any ideas ?
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Hi have you tried al the inputs ie scart ,hdmi
The countdown is to switch off as it has no signal .
If you have tried all inputs with no success then it suggests the main board has a problem ,
quicker to replace than repair
Paul
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Firstly thanks for reply ! i tried putting a normal indoor aerial but nothing,not tried scart device or hdmi.I was given the lcd and all was told it stopped working.
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hi
have you checked to see if in dtv mode with count down
sounds like anologe mode
dave
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Thanks for reply,could u tell me what is dtv mode ? on switch on you only have a matter of minutes to change menu items before switch off.
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Just tried freeview box,we have sound but picture,goes off after few minutes.
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Hi
when you say shuts off do you mean the screen goes blank or does it say no signal ?
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blank.
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Right sorry when you say blank do you mean screen off completely or can you still see light at the back from the ccfls .
Just trying to work out if your inverter has gone or your main board is shutting down the inverter as it is not getting a signal and going into standby mode .
If you press source on your remote you should see a list of inputs , make sure it is set to dtv and try it again
sorry bit long winded but the more info the more chance someone might be able to help you sort it
Paul
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No worries your a great help,top man,its in dtv mode,no light from back of unit,only when switch on (blue),but we have sound.
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Any ideas,forum members ?
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Hi Leedash,
Think this (Vestel) is known to have dodgy 5pf/3KV plus caps in the inverter 'tube sensing feedback circuit' - replace 5pf blue caps near the screen tube sockets - had one or two - cheap from China/off Ebay - all the best - Chris
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hi
your first posting say's the screen lights you get osd?
but now nothing what is the fault then
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Hi Sparky,
Perhaps the screen then cuts - Folks might need a torch to see those duff 5 puffs - keeping up with feedback, as we all do - Chris
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hi
if no signal being shows after 5 mins reverts to standby
as per the manual stops tv being left on at night when
no transmition being recieved only works on anologue
usually
not torchy the battery boy eat your carrots see in the dark
dave
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Hi Sparky,
Eating carrots daily - but had a glass, or two -will reply tomorrow as your post seems unusually curious, but in ever lower case, for some left-ish reason, perhaps - Chris
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I will try and change the x2 blue caps,im sure someone put a previous post showing a picture of changing them.
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Hi these run to different types of inverter .
What the numbers of the inverter and what number main board does your one run .
From what you are saying you are coming up with 2 types of fault ,
one is an inverter problem the other is a main board problem which could be causing the inverter to shut down .
Are you getting a picture to start with when you are using scart or hdmi and it is then shutting off the inverter after a couple of mins or
are you getting nothing but sound from the begining and no picture
Paul
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On switch on with nothing connected i get a no signal and countdown on a blue screen,even with a aerial plugged in,then goes off after a minute,then when switched on again just goes off quick.
If i plug in a external freeview box i get picture sound etc but still switches off after couple of minutes but sound remains (black screen).I made sure it was set to dtv.
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hi
does the backlite go off check the inverter
dave
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the backlight you can see through the grill @ the back,is only alight when its switched on for a few seconds,how would u check the inverter ?
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hi
try and post some pics of the inside of tv does it have one
inverter or 2 ?
dave
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Right should post some pics later If I know how to :oops: looking at it to the right u have a board with the hdmi,scart,aerial port,to your left you have I take it the power side and to the top you have a then type board which has a ribbon coming off it.
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Hi
i have attached a pic of an ALBA LCD32HDF (similar to yours ) just to show you the layout
Top LVDS board (T-CON)
Left Inverter (yours may be a short one)
Centre PSU
Right is the main board (Video or AV input )
If you can find the numbers on the boards post them with your pics .
To attach a pic click on the additional options button
Paul
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Hi again numbers 17ips10-9
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Three more.
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Any ideas ?
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Any more info on this peeps ? Before it gets a place on eBay if unfixable
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Hi Leedash,
Guess you changed those two blue 5pf caps at inverter outputs - had the prob myself - Chris.
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Hi looking at your tv this is now the third different setup i have seen on this model
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Hi Sabre,
You can't beat Vestel - tried - Chris.