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Samsung LS19CFEKF/EN (933hd) blinking blue light / wont display
Motsey:
Hello,
I have a Samsung LS19CFEKF/EN (933hd) which is being a pain it sometimes turns on and the blue light displays but no responce when pressing the power button but other times it turns on but off after a few seconds, other times the blue light goes off and then other times it works fine untill I put it on stand by again.
I have replaced all the capacitors on the power board apart from the large 450v 100uf as i couldnt find it.
I have put everything together and power it on and done a quick test and I have listed what each cable on the power board tothe main power is reading;
1) B-Dim = 1.50
2) +15v = 15.44
3) GND
4) GND
5) GND
6) +5.1v = 5.18
6) +5.1v = 5.18
7) A-Dim = 0.70
8) On/Off = 5.02
that all seems ok right?
Any ideas on what could be wrong with the lcd?
Any help or guidance you can provide will be much appreciated.
- Thank you
Motsey:
Also i have an old software verison;
Software Version = T-TMZLDEUC-1000
Date = 05 nov 2008
Firmware version = T-EMMA2DEUB-0106
----
I have googled and some one is using version T-TMDEUC-1003 on the same lcd tv which i believe is newer, thereis an option to manually update software but how would I do it?
-Thanks
Motsey:
just noticed after the tv has been on for a awile say aprox a day, thats stand by or actually working if it does, then the blue light goes off and the tv will not respond to any thing no blue light will come back on.
Could this be a component failing due to over heating? A dry solder joing? :dubbio:
Turnip:
Hi Motsey,
Guess you've sussed it by now but in some small screen size Sammies the chopper drive chip was a common intermittent drive culprit - a 1200P60 I think. All the best - Chris.
Motsey:
hi,
thanks for your reply but no luck fixing it yet - where would he chopper drive chip be located? Also can i replace myself?
Can a firmware update be done if the lcd has no usb port on it?
-Thanks
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