Comcast scientific atlanta explorer 8300hd hdmi to westinghouse lvm-37w1 dvi1 (hdmi/dvi-d single link adapter) produces invalid mode how do I fix this?

Ur backlight video board is the problem.Must change to solved this problems.

you can get a manual from here...

http://www.retrevo.com/s/Westinghouse-LVM-37w1-TVs-review-manual/id/278ci969/t/1-2/

This problem is almost certainly on the 8300HD side of your setup. URL for the 8300HD, just in case you need it: --> http://www.scientificatlanta.com/products/consumers/userguidepdfs/4013171.pdf Dittos for the TV, just in case: --> http://www.samsung.com/us/support/download/supportDownDetail.do?group=televisions&type=televisions&subtype=dlptv&model_nm=HCN4226W&mType=UM&dType=D&vType=L&cttID=37697 You're using the HDMI-to-DVI cable to connect, and I see that the manual warns on the bottom of page 11 that some DVI connected HDTVs are incompatible to the signals that are output by the HDMI interface. First thing to try - when you change the settings in the 8300HD, in the "General Settings > Audio", see if you have this problem with all of the possible selections, or if it's only with the "Dolby Digital" setting. Since the HDMI also contains the audio signal, it may be interfering with the DVI recognition in the TV. OR - See if you still have this problem when turning the TV on first, then the 8300HD. Or vice-versa. The power-on order of the two devices may make a difference. OR - With the TV on and with the 8300HD off, press the GUIDE and INFO buttons at the same time. Using the on-screen menu, verify that it is set to HD mode. Press the POWER button on the 8300HD when finished. OR - Replace the HDMI-to-DVI cable with a PrPbY/V component cable, available at Radio Shack, Best Buy and other electronics stores. One of these options should solve the problem. If not, you'll have to start sending e-mails to Sci-Atl and Samsung. Hope this helps! ;)

CHANGE BACKLIGHT INVERTER

RESOLDERED INVERTER POWER SUPPLY UNIT

Try this link (you must have Adobe reader installed):

http://www.westinghousedigital.com/pdf/26_User_Manual.pdf

The stand for this model is not available complete. Please contact Eddie for more info @ (562) 236-9800 x128.

I have a similar problem with my TX-42F430S; Mine freezes when changing from Comp 1 to Comp 2. unpluging and waiting was the only fix. Just recently my TV just started turning off(after about 30min of watching) and the led will flash blue. I need to unplug for about 10min before it works again. Getting frustrated and I have contacted Westinghouse to send for repair. only had the TV for 3 months; connect to Roger Explorer HD box.

It is worth fixing but you have to replace the power supply. It is a fairly common problem with the Westinghouse units.

Get another cable box, the scientific atlanta are notorios for these type of problems