kinda off topic but i figured i would ask ya'll

kaukasion · 19th January 2004, 05:55 PM

my tv recently stopped working
our neighborhood suffered a power outage
not like a surge that i noticed
the tv is a rca big screen about 10 years old

well when the power came back on it wouldnt
ive been probing around in the power supply things seem alright
but im not 100% sure of what to look for other than lack of voltage

well it was plugged into a surge box
that should have protected it

the fuse where the cord goes in is fine
then it seems to directly split the voltage to two 60v lines and im probing around with my dmm in desperation hope'n i find a blown resistor

anyways back to the question

are there any particular things i should be looking for?
like what would be most likely or what componants would be more probable to go out in that situation? resistors? diodes?

either way any help and or suggestions would be greatly helpfull
and surely time saving

thanx ahead of time

kaukasion · 19th January 2004, 06:16 PM

im almost 100% sure that it is a power supply problem
cause the way the button wont even light up
and nothing happens when you try to turn it on

any help please

thanx

kaukasion · 19th January 2004, 06:24 PM

just as i suspected there is no voltage @ the power button
argghhhhh this is driving me crazy

osey · 19th January 2004, 06:28 PM

Fused Plug?

kaukasion · 19th January 2004, 06:30 PM

well the plug is detachable
and where it goes in before the power goes anywhere it is fused
i checked the fuse with a batery and a dmm and it passes current and voltage

neutron7 · 19th January 2004, 06:32 PM

Is the power switch right on the main power cord or is it a relay type affair?

kaukasion · 19th January 2004, 06:35 PM

its in the front of the tv
i pulled it off and checked for power
it doesnt seem to be getting anything

it seems to be relay

but its connected to the powersupply im sure
i figured that would be a start
and would narrow it down to just the supply

hmmm

this thing is making me mad i want my big screen back

neutron7 · 19th January 2004, 08:49 PM

If it is a relay then there must be some kind of standby power supply so the relay can be activated. maybe that is the only thing that is blown. If you can find a schematic for the set, it would help you a lot.

kaukasion · 21st January 2004, 06:05 PM

i emailed rca
lets hope i can get one pretty cheap

Da5id4Vz · 21st January 2004, 06:19 PM

There is often a 1-ohm wire wound resistor on one leg of the input power to the television. They are kind of notorious for quietly burning up without any fireworks. Its worth your time to look for one of these things very close to the power cord and see if there is any voltage drop across it with respect to the other leg of the line cord.

If that doesn’t do it, you should start hunting for the schematic. Try Sams photo facts.

-Dave

(I think we have a safety related moratorium on discussing TV chassis here. Please be extra careful)

19th January 2004, 05:55 PM	#1
kaukasion diyAudio Member Join Date: May 2003 Location: illinois	kinda off topic but i figured i would ask ya'll my tv recently stopped working our neighborhood suffered a power outage not like a surge that i noticed the tv is a rca big screen about 10 years old well when the power came back on it wouldnt ive been probing around in the power supply things seem alright but im not 100% sure of what to look for other than lack of voltage well it was plugged into a surge box that should have protected it the fuse where the cord goes in is fine then it seems to directly split the voltage to two 60v lines and im probing around with my dmm in desperation hope'n i find a blown resistor anyways back to the question are there any particular things i should be looking for? like what would be most likely or what componants would be more probable to go out in that situation? resistors? diodes? either way any help and or suggestions would be greatly helpfull and surely time saving thanx ahead of time

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
TJL in figured rock maple veneer.	tktran	Multi-Way	2	15th February 2005 04:43 PM
any experience with lsk m4? (kinda newbie)	skyskraper	Multi-Way	3	14th February 2005 05:47 AM
Some kinda XSoZ	Fuling	Pass Labs	9	27th June 2004 07:17 PM
ML TQWT 2-way? (kinda long)	Sherman	Multi-Way	5	2nd March 2004 05:03 PM
What kinda Batterys are these.	jleaman	Parts	6	13th March 2003 02:32 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

19th January 2004, 06:16 PM	#2
kaukasion diyAudio Member Join Date: May 2003 Location: illinois	im almost 100% sure that it is a power supply problem cause the way the button wont even light up and nothing happens when you try to turn it on any help please thanx

19th January 2004, 06:24 PM	#3
kaukasion diyAudio Member Join Date: May 2003 Location: illinois	just as i suspected there is no voltage @ the power button argghhhhh this is driving me crazy

19th January 2004, 06:28 PM	#4
osey diyAudio Member Join Date: Dec 2003 Location: Southampton	Fused Plug?

19th January 2004, 06:30 PM	#5
kaukasion diyAudio Member Join Date: May 2003 Location: illinois	well the plug is detachable and where it goes in before the power goes anywhere it is fused i checked the fuse with a batery and a dmm and it passes current and voltage

19th January 2004, 06:32 PM	#6
neutron7 diyAudio Member Join Date: Dec 2003 Location: Toronto Canada	Is the power switch right on the main power cord or is it a relay type affair?

19th January 2004, 06:35 PM	#7
kaukasion diyAudio Member Join Date: May 2003 Location: illinois	its in the front of the tv i pulled it off and checked for power it doesnt seem to be getting anything it seems to be relay but its connected to the powersupply im sure i figured that would be a start and would narrow it down to just the supply hmmm this thing is making me mad i want my big screen back

19th January 2004, 08:49 PM	#8
neutron7 diyAudio Member Join Date: Dec 2003 Location: Toronto Canada	If it is a relay then there must be some kind of standby power supply so the relay can be activated. maybe that is the only thing that is blown. If you can find a schematic for the set, it would help you a lot.

21st January 2004, 06:05 PM	#9
kaukasion diyAudio Member Join Date: May 2003 Location: illinois	i emailed rca lets hope i can get one pretty cheap

21st January 2004, 06:19 PM	#10
Da5id4Vz diyAudio Member Join Date: Feb 2003 Location: lost in america...	There is often a 1-ohm wire wound resistor on one leg of the input power to the television. They are kind of notorious for quietly burning up without any fireworks. Its worth your time to look for one of these things very close to the power cord and see if there is any voltage drop across it with respect to the other leg of the line cord. If that doesn’t do it, you should start hunting for the schematic. Try Sams photo facts. -Dave (I think we have a safety related moratorium on discussing TV chassis here. Please be extra careful)