Red light but no power - alba tv please help

[SmartestSmarty]

Re: Red light but no power - alba tv please help

Thanks for all your help.

I have another TV to repair; I'll start another thread for that one and post the link on here also.

I look forward to repairing the next one.

Thanks again

[flocko]

Re: Red light but no power - alba tv please help

Good job hope you continue to learn on here and find more sets to repair Flocko

[tom66]

Re: Red light but no power - alba tv please help

Good to hear, enjoy your TV.

[SmartestSmarty]

Re: Red light but no power - alba tv please help

Yes the board numbers were exactly the same. No worries I found the issue, I put one of the ribbon cables in upside down. Its all working now

[flocko]

Re: Red light but no power - alba tv please help

Do all the numbers on he old main board match the new main? these have to be a complete match, also on the plug that goes to the T.con these board some times have more pins on the board then on the plug and needs to be fitted the same as the old one? so check these thing and reply Flocko

[SmartestSmarty]

Re: Red light but no power - alba tv please help

Hello all,

I completely changed the main AV board, the screen now comes on, but I am getting only a white screen. Any idea why? or how to resolve this?

[tom66]

Re: Red light but no power - alba tv please help

See here for how to test voltage regulators
https://www.badcaps.net/forum/showthread.php?t=22231
try that on your board.

[SmartestSmarty]

Re: Red light but no power - alba tv please help

Thanks. I am looking for a replacement board; however, I wouldn't mind attempting to fix this one myself. I can solder very well, and I'm sure there will be a youtube video out there explaining how to do SMDs. I don't mind if I need to purchase a different tester off of ebay or something. As you can see I like to learn and do things for myself.

[flocko]

Re: Red light but no power - alba tv please help

Bad capacitors are to blame in about 5% of Tv repairs and cannot be tested with a multimeter.And as most of the part fitted to your main board are SMD and would need highly skilled soldering for there replacement a replacement board is your best bet. Flocko

[SmartestSmarty]

Re: Red light but no power - alba tv please help

Thanks for the reply!

Are you sure? I am willing to give it a go; I have to learn someday.
I know how to change capacitors. So if you think It may be a bad capacitor, maybe you could tell me how I test them; and then I could change any bad capacitors if needed.

Kind regards.

[flocko]

Re: Red light but no power - alba tv please help

been out cutting grass,well as Tom said 12 volt supply are there i thinks the 5V from the main must be there as well for the red standby led to light, so my best bet would be bad main board. and as such i would suggest a replacement board as i would think that testing and a repair on this would be beyond you at the moment.Look for part number on main board then search on Ebay. Flocko

[SmartestSmarty]

Re: Red light but no power - alba tv please help

I appreciate all the help,

Do you need any other pictures?

[SmartestSmarty]

Re: Red light but no power - alba tv please help

Time to look at the main board, can you post a picture of it?

on that socket or near by is there any thing screen printed to tell us what should be there it could also be on the other end were it go`s to main board has the power board got a part number on it?

In the centre of the power board it reads, ACT 3611 / ERL28-T002 (Is this the board part number?)







This is what I can see.

[flocko]

Re: Red light but no power - alba tv please help

Sorry just looked at your photos again and your power board is mounted to the plastic body of the set so the mounting screws would not be grounded flocko

[flocko]

Re: Red light but no power - alba tv please help

on that socket or near by is there any thing screen printed to tell us what should be there it could also be on the other end were it go`s to main board has the power board got a part number on it?

[tom66]

Re: Red light but no power - alba tv please help

It would appear the power supply is working then. Time to look at the main board, can you post a picture of it?

[SmartestSmarty]

Re: Red light but no power - alba tv please help

I tried again this time I got.

Red Wire: 12.71
2nd: 12.71:
3rd: 12.71
4th: 0.00
5th: 0.00
6th: 0.00
7th: 0.03
8th: 0.00

[SmartestSmarty]

Re: Red light but no power - alba tv please help

OK, I tried it again, this time I got.

Red Wire: 12.71
2nd: 12.71
3rd: 12.71
4th: 0.00
5th: 0.00
6th: 0.00
7th: 0.03
8th: 0.00

[SmartestSmarty]

Re: Red light but no power - alba tv please help

You can't be testing it correct then, if you get 0V there the power light would not work. Show us what your meter is set to please.

Is this correct?

[tom66]

Re: Red light but no power - alba tv please help

You can't be testing it correct then, if you get 0V there the power light would not work. Show us what your meter is set to please.