SOURCE: Toshiba 42hp66 without an image
Hello, You most likely have a bad Y sustain board! Part #'s are:
6871QYH053A, 6871QYH053B, 6870QYH005B, 6871QYH953A, 6870QYH105B.
Here is a link to the part you need!
http://www.discount-merchant.com/Y-SUSTAIN-PN-6871QYH053A-6871QYH053B-6870QYH005B-p/vizio-sku9506.htm
I hope this help you! Please feel free to give me a call or message me if you have any questions! Ask for Dave!
Thank you! :-)
Dave
1-503-432-9904
[email protected]
SOURCE: Toshiba regza went black, then the northen lights appered!
prosit, If unit can be opened, I recommend you visually inspect the main power supply printed circuit board for "bad" electrolytic filter capacitors that may be faulty and failed prematurely! Lots of DIY videos at YOUTUBE that you should view before doing a "teardown" !!! Remember THIS!!! You MUST document your teardown with video or digital stills so before disconnecting any connectors to the board so you can put unit back together exactly as it was before you started any board repair work!! e.g. replacement of filter capacitors, fuses, resistors, and solder joint inspection of through-hole and or surface mounted active and passive components. DO YOUR WEB RESEARCH OF YOUTUBE VIDEOS FIRST!!!! Good luck guy. Keep us tech's informed of your progress by doing additional posts (comments) here on fixya. 12fixlouie
SOURCE: I have a toshiba regza
Three possibilities: LCD panel TFT driver circuits, T-CON board, main board LVDS driver IC. I would get a can of cold spray fro electronics troubleshooting and start cooling the ICs in the main board, T-CON board (you need to remove metal shield to get to the T-CON board to see if it is heat related problems.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:
Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx
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