Unit took a surge, was used in van and battery exploded, found D1623, 33V zener shorted. Replaced and shorted again. Replaced iso-coupler and diode, unit is 100%. Thanks Peggs! Pat Carroll Pats TV McDonough, GA patronics2003@xxxxxxxxx __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com ------------------------------------------ Submit A Repair Tip For Everyone Here: http://www.tech-assist.org/secure/tip/main.html ------------------------------------------ To REMOVE your email address, click here: http://www.tech-assist.org/unsubb.html To CHANGE your email address, click here: http://www.techassist.net/forms/change.html