Re: Insignia NS-LCD42HD No Lights(R,B,G) & No Standby Power
I have put it aside and have been working on doing a full rebuild of a 110cc engine and rewire for my sons go kart. I am almost finished and will be returning to work on this TV in the next 2-3 days.
Was I supposed to check the voltage across the capacitor in DC? I will be sure to remeasure it and post the results.
I will be also testing most of the main components at update those results as well. I bought one of these little component testers and hopefully it will help. Has anyone had...
BigJon119
Member
Last Activity: 05-01-2014, 10:06 AM
Joined: 08-07-2013
Location: Fort Smith, AR
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Re: Insignia NS-LCD42HD No Lights(R,B,G) & No Standby Power
Do you think I should follow the -09 service manual and test those parts that I listed??Leave a comment:
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Re: Insignia NS-LCD42HD No Lights(R,B,G) & No Standby Power
sure don't boss. Everyone and everything was saying that I should have power to the 5VSB if I was showing 380V on that big filter cap so I took a video just in case I wasn't doing something just right and even flipped it over and measured the cap and the backside GND to 5VSB, etc just like you described. Nothing on either side.
I've repaired many things but never this depth of a TV circuit board. I found a copy of the service manual for the LS-LCD42HD-09 model and figured I might be able...Leave a comment:
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Re: Insignia NS-LCD42HD No Lights(R,B,G) & No Standby Power
@budm I tested using the GND pins you mentioned and still nothing on any of the power pins (+5VSB, +5V, +12V, & +24V).
Everything I've read for the most part goes along with that, thats why I'm frustrated that I am getting PFC, but nothing on the 5VSB. Only thing I can image is
[LIST=1][*]It is not a common issue with the board and one small component went out
[*]This board is slightly different than other PS (noticed that the NS-LCD42HD-09 information...Leave a comment:
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Re: Insignia NS-LCD42HD No Lights(R,B,G) & No Standby Power
This is the big filter cap you were taking about right?? It was the biggest one on the board and says its rated 450V MAX on the side. That one measured 380V
*Note* When I measured it all the chords were disconnected besides the main power to the PSU and it was on paper (not grounded by the chassis/screws) if that means anything. I had to measure it this way because I used the leads on the bottom side of the board because it was too hard to get in there and measure it from the top.
...Leave a comment:
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Re: Insignia NS-LCD42HD No Lights(R,B,G) & No Standby Power
Thanks for the response ben7, I appreciate it.
Ok I checked the big 450V cap and it measured 380V pretty steady.
*on a side note I waited several seconds between each check and each time the voltage read 700-1000V, but instantly dropped to 379-380V. I don't know if this is because I am using a cheap voltmeter or they are supposed to behave that way. Just thought I would throw that out there in a rare case it means anything.Leave a comment:
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Re: Insignia NS-LCD42HD No Lights(R,B,G) & No Standby Power
I remembered doing both a while back when I was looking at it but I went ahead and re-tested with my ground on the chassis to make 100% sure. Sure enough, everything was the same.
Thanks for clarifying that for me tom66. That does make sense that you should use the chassis when working on a power supply. Thanks for the tip! I'll be sure to do that from now on 
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Insignia NS-LCD42HD No Lights(R,B,G) & No Standby Power
This TV was given to me by a friend a few months ago. After spending countless hours pulled in many directed reading different things and trying to figure this beast out I figured I would ask for help here. I know this is not the best starting point, but I do not know which direction to go in next. If someone could point me in the right direction I would greatly appreciate it.
The TV is a Insignia NS-LCD42HD and is a 2007 model. I cannot find anything for it manual wise as everything I find as well as talk is the -09 Model and I read on here that the -09 is the year. The -09 model... -
Re: LCD TV and Monitor basic troubleshooting guides
Great guide! Read it and learned a few things. Just added it to my collection! Thanks
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Re: New Members - please post your introductions here
Me too WumpusRX, a friend gave me a Insignia Model #NS-LCD42HD that went out when a storm flickered their lights. Fuse is fine and 2/3 the power board is getting power..read like crazy about 2 months ago about it and couldn't figure it out. Ready to pick back up this project and get her fixed!
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Re: New Members - please post your introductions here
My name is Jon, but all my friends call me Big Jon. I am a single father with full custody of my little boy who just turned 8. I have been into electronics since I was around 6 tinkering around with old flashlights and taking things apart and putting them back together again. My first computer was a 8088 (the model before the 8086) that was 4 mhz and 6 mhz if you hit the turbo button. I got that computer when I was around 8 and all I had was DOS to mess around with. Now I am a Certified Magento E-Commerce Developer, but am...
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