The unit has power, has backlight, and screen initially shows a grey color, then has colored veritical lines along the left, right, center of screen (moves and varies as time passes), then after about 15 minutes the picture comes on and stays on for hours, as though nothing is wrong. Any ideas?
-
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
My first check point would be to reseat the LVDS cable. This is the cable running from the main board to the t-con or LCD panel. Pictures will be necessary if you require further help or assistance in locating the LVDS cable.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search. -
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
Thanks. I know the location. The TCON is buried on these machines. It will take me awhile!!!!Comment
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
I removed the LVDS cable, lightly sanded the copper contacts on both ends, blew off any dust, reassembled......its still acting up!!!...although it now only takes 10 mins to get the picture!!!Comment
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
Starting from cold try heating the boards (gently) with a hairdryer to see if it comes
a bit quicker. Try the power supply board first (caps) . If it comes on quicker let it cool
and try again a section at a time to try and pinpoint. Pictures might help us.
We can help a lot more if you please post good clear pictures of the whole chassis, and then pictures of each board, front and back (in the same orientation) and close up of connectors, (max resolution 2000x2000 and 2MB) using the manage attachments button, which is found by clicking "go advanced" under quick reply.
Please do not post inline and offsite as they slow down the loading of pages.
Examples of what is needed
https://www.badcaps.net/forum/attach...7&d=1280167246
https://www.badcaps.net/forum/attach...6&d=1280167246
https://www.badcaps.net/forum/attach...4&d=1280167246Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
Thanks for the suggestions. I will try the heating and post pictures later today!!!Comment
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
One other point: after it is up and running and I shut it off (and it is presumably warmed up), I turn it on and it acts the same way....it takes about 10 mins to get the picture. I will still dry the hairdryer though.Comment
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
Great! stop trying to mend it and start to make a nice highly polished wood box - mount it in that and sell it as a nostalgia tv. When my dad got our first tv crt and valves they all took 10 minutes to get going
Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
You're a genius!! Heating the power supply did the trick (but I heated a wide area)! It will be tough isolating the specific area on the PS as it is so small and the hairdryer ends up heating a fairly wide area. I will (1) turn it off, l(2) et it cool, (3) heat a small area of the board, (4) turn it on see if it works, then repeat 1-4 untilI can isolate it.
Speaking of old TVs, I have a 1964 black and white RCA in my basement....not sure why though!!!Comment
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
to narrow the area i use a cardboard roll from a kitchen tissue roll just aim the heat down the tube usually works okComment
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
I have narrowed the area to where transformer LC306 is located (see photo). Heating the caps made no difference. I've turned it off and let it cool then reheated LC306 about 3-4 times and I get a picture immediately. So do I replace PS or try to replace LC306?Attached Filesif you find these attachements useful please consider making a small donation to the site
Comment
-
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
Let me try the photo again.Attached Filesif you find these attachements useful please consider making a small donation to the site
Comment
-
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
Ok - I dont know but heat only usually affects a transformer in that it has cold solder joints - Suggest you take the board out and resolder it - remove the old solder and apply new You may of course be able to see something when you get it off.
Other possibilities are the components next to it Resistor? Red Cap ( That actually looks a bit fat?) then the three on the heatsink.
Try a partition to keep the heat off the transformer and heat the other parts.
Transformers are usually not replaceable ( blast forgotten the word but they are made specially for the board manufacturer to specs for that board and not sold )
Edit word I forgot is proprietaryPlease upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
Thanks for your help!!!! I think I can isolate transfromer and try heating again...thanks again!Comment
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
Hmm - Just looked further out - does the Big cap have a bulge or is it just the pic.
It may just be a plastic end piece - can you press it in?
Afraid Ill have to leave you to it - signing off for the evening.Last edited by selldoor; 03-02-2013, 05:06 PM.Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
Maybe a bad solder connection on one of the transformer pins? Try adding some fresh solder to each pin.Comment
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
Yeah, its not the transformer...it appears to be the "grey" component but I am still rechecking via isolation and heating. What is the grey component? (i am a rookie!!!)Comment
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
It seems like it is the resistor, the grey component. I isolated and heated each of the components in that corner and everything points to the resistor, the grey component. Does that make sense? Its definitely not the transformer or the Red cap as I'm pretty sure I did a good job of isolating those components while heating the resistor.Comment
-
Re: Insgnia NS-LCD26A:have power & audio, video comes on after 15 minutes
After more testing, I believe its the red cap. I did more isolation to ensure I was only hitting it with the heat and not the other components and heating it solves the problem. I have been turning on the TV from a "cold start" the past 3 hours and it is starting right up which it was only starting after heating the red cap....so I don't know what I did but it seems to be fixed. If it acts up again, replacing the red cap looks pretty simple. Is that what you would suggest?Comment
-
Hi all!
I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅
I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
https://www.badcaps.net/forum/troubl...-hardware-devi... -
Hi.
Long shot but does anyone have a schematic & boardview for the audio board+power button on a Macbook A2179?
There is a shorted cap on mine and I need to know if I can safely remove it or whether I need to replace it and with what capacitor.
Many thanks. ...08-21-2025, 02:38 PM -
This specification for the HP Compaq dc7700p Intel Core2 Duo Processor E6300 2x512M/80G DVD-ROM WXP Pro Small Form Factor PC can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the Compaq dc7700p Intel Core2 Duo Processor E6300 2x512M/80G DVD-ROM WXP Pro Small Form Factor PC boardview and Compaq dc7700p Intel Core2 Duo Processor E6300 2x512M/80G DVD-ROM WXP Pro Small Form Factor PC schematic. Our users have donated over 1 million documents which are being added to the site. This page will...09-12-2024, 03:36 PM
-
The Problem: This player has a toggle switch to select between Stereo, Mono R, and Mono L. Regardless of the setting it outputs the sound to both the L&R audio jacks. In the Mono R position, the audio output level is normal (from both the L and R audio output jacks), in the Stereo position the audio output is about half the volume, and in Mono L, it's about 3/4 the volume. Something about putting it into Stereo mode is causing the volume to drop significantly and I can't figure it out.
The player processes the audio signal using two different reference frequencies. The "R"... -
Hello, I have an asus Z97-A motherboard and it doesn't start which was working properly before, the problem isn't related by ram, ram slots or psu (I changed all and nothing work), the exact problem is when you switch it on , it starts and after 1 seconds (no boot or display picture) it's off and then on cycle continuously until you power it off from psu also it's responding to the power switch for turning it off if you keep pressing it 3 or 4 seconds (power button pin has 3.3v) , also when you start it with eatx 12v socket connected this is happening (power cycle also all voltages are resetting...
Comment