Re: Insignia 42" NS-L42Q-10A No Power/No Red/Blue LED

I knew something had to have been wrong. No worries though.

F1 125/2A on the Tcon measures 17.4 m V (Am I reading that right? My manual says when I switch the multimeter to DC it will start on auto tuning and it will have the "m V" symbol. Is that millivolts?)

Also, that resistor with the 0 measures nothing on the DC scale.

Re: Insignia 42" NS-L42Q-10A No Power/No Red/Blue LED



The fuse I have highlighted measures .5 ohms and 1.1 m V with power. I had the multimeter on DC and left it on auto tune. Just doesn't seem right to me....

Re: Insignia 42" NS-L42Q-10A No Power/No Red/Blue LED



Thanks for sending it to him. How were you able to find it? The only manuals I can find are the basic user manuals. I will see if I can't find these part labels on the board and test them, though I'm sure it would be easier to locate them with the pdf manual....

Re: Insignia 42" NS-L42Q-10A No Power/No Red/Blue LED



The fuse in the 3rd pic (I have highlighted it in the attached image) measured at .5 ohms, which is what I got when touching the probes together on my multimeter. Also, The blue LED that is highlighted in my attached image fades after approx. 25 seconds and is gone. I'm not sure what the purpose of this board is, and if that is how the LED is supposed to work.



Unfortunately, I don't have a manual range multimeter. I have a [URL="http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&ved=0CGIQFjAC&url=http%3A%2F%2Fmetersupport.com%2Fmanuals%2F82139.pdf&ei=C98mUNCmAZSQ8wTgp4DYDw&usg=AFQjCNF7tWatQP9g5fNXB5A7XTbhLmTO9Q"]Craftsman...

Re: Insignia 42" NS-L42Q-10A No Power/No Red/Blue LED



Here you go. Hopefully this helps. I assume by main/signals board you meant the AV board?...

Re: Insignia 42" NS-L42Q-10A No Power/No Red/Blue LED

I got my fiance to hold the power down while I measured the voltage.

Both Rubycon caps measured 384v DC.

For the long connector (CN9102) I got the following measurements.

Pin...Legend.....Actual
3.....12v DC.....11.46v DC
4.....12v DC.....11.46v DC
8.....24v DC.....25.08v DC
9.....24v DC.....25.08v DC
11.....5v DC.......5.17v DC
12.....5v DC....5.17v DC

Unless I'm missing something, it looks like I'm getting all the power requirements...

Re: Insignia 42" NS-L42Q-10A No Power/No Red/Blue LED

Ok, with AC connected I was able to measure 168.5 VDC on both the large Rubycon capacitors. The two resistors between the ends of the two heat sinks (R9211 and R9208) measured .5 ohms and 1.7 ohms respectively.

I'm not sure what to check next.

Re: Insignia 42" NS-L42Q-10A No Power/No Red/Blue LED

I'm not sure what I was doing wrong yesterday, but I was able to get a reading of .005 volts (5.9 mV) on each of the two big Rubycon capacitors. Does this sound right?

I ran across this forum while looking for a solution for whatever seems to be wrong with my TV and found the following thread to be quite helpful.

[url]https://www.badcaps.net/forum/showthread.php?t=21095&highlight=insignia+power[/url]

However, I'm not one to hijack other threads (especially for a first post) so I am starting this thread.

Like wiatery, I too have an Insignia NS-L42Q-10A that has no indication of power (other than a blue LED on the inside of the TV behind the back panel). The Red/Blue LED on the front does not come on when there...