Question about Zenith IQC50H95W 50" Rear Projection Television

2 Answers

IQC50H94W Zenith Projection tv

My tv will not power up i checked the standby power supply and it is not putting out power and it is not blowing fuses every thing i have checked on the power supply is good could i be over looking somthing the red led comes on and pulses but no other led comes on.

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  • 73Lt Jan 06, 2008




    I power up the tv and i hear clicking no picture or sound in acouple of seconds the clicking stops and the lcd light is solid red. Tim


  • Anonymous Mar 10, 2008

    My TV will not power on but when you push the power the red light will come on and go back off. After you keep trying to power on about 20 times eventually it will come on. I have replaced the power supply twice.

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I have a zenith projection tv and it powers up and has sound no picture can u tell me what this could be

Posted on Apr 12, 2008

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Check the flyback/hv-spliter sounds like it could be your problem also check horizontal ic

Posted on Sep 24, 2007

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2 Answers

I have a Vizio XVT473SV with no video or audio, but the Vizio standby lights up.


I would say its most likely the power supply. Quite often after a power surge this can happen. Another option could be that the surge just blew the fuse on the power supply board and replacing that may be all you need. That said, usually you will get no signs of life at all if the fuse blows.

Jan 22, 2018 | Vizio Televison & Video

2 Answers

I havea27" Westinghouse LTV-27w2 LCD TV. I am with AT&T Uverse along with internet service. I believe I have a power supply problem. There is absolutely no power to my TV. Everthing else is...


Do you know how to use a meter? If so the first thing to do is take the back off and check the AC fuse, if this is blown replace it and see if the set works. If it blows again you have a short in the primary power supply and replacement of the power board will be required. If the ac fuse is good you will need to check all the plugs coming out of the power supply for voltage, if you have voltage coming out then you could have a bad main board or power supply. If you have no voltage coming out and the fuse is good then replacing the power supply is required. Let me know what you find and I can help you further!

Tim Nolan

Sep 23, 2008 | Televison & Video

1 Answer

My Phillips 50 in tv doesn't turn on


First thing of course is see if the fuse inside is good or bad.

some general information:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have to buyand try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.If set is opened at least look for puffed up and bad caps like in thisphoto.

5_26_2012_6_26_48_pm.jpg5_26_2012_6_27_04_pm.jpg

May 26, 2012 | Philips Televison & Video

1 Answer

Craig 19 inch lcd tv shut off and i can't turn on with remote or button on tv


ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have tobuy and try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.4_10_2012_10_50_35_pm.jpg

open set and look for caps like these that are puffed up on the power supply board(follow power cord to it).

Apr 10, 2012 | Televison & Video

2 Answers

Tv no power


I see so many here with no sound/nopicture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have tobuy and try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.4_5_2012_2_41_45_pm.jpg

Look at the power supply board inside the set (follow the power cord inside to it) for caps that look puffed up and are bad like these.

Apr 05, 2012 | LG 42LH30 42 in. LCD TV

1 Answer

Was watching tv when the screen went black waited for fifteen minute the indictor light is on but no picture and no sound


First thing is to unplug set and or a box if using one for several minutes and plug both back in and allow the units to reboot.

General answer concerning the TV:

I see so many here with no sound/nopicture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have tobuy and try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.

4_2_2012_4_05_18_pm.jpg

Apr 01, 2012 | Samsung Televison & Video

1 Answer

52 inch Samsung Flat Screen TV


I see so many here with no sound/nopicture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have tobuy and try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.
4_1_2012_3_34_27_pm.jpg

Mar 31, 2012 | Samsung LN52A580 52 in. HD-Ready LCD TV

1 Answer

Reviews on baird 47 inch tv wont turn on


I see so many here with no sound/nopicture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have tobuy and try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.
4_1_2012_4_19_36_pm.jpg

Mar 31, 2012 | Televison & Video

1 Answer

RCA 37" LCD TV WONT TURN ON


I see so many here with no sound/nopicture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have tobuy and try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.
3_30_2012_2_09_04_am.jpg

Mar 29, 2012 | RCA L37WD12 37 in. LCD HDTV

1 Answer

When I plug the receiver in no power ? Worth fixing ?


Hi,
Check fuse in power supply board that might got blow for some reason, replace it and check.
If fuse seems OK then standby power supply transformer would be defective, get repair estimate from local repair shop to decide some thing.
Thanks.

Dec 27, 2010 | Denon AVR-1601 Receiver

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