Neil, Looks like D1012 on "Sub CBA" (read power supply board) is a 15 Volt Zener....Zener Diode UZ-15BSB(B)...P#QDSB00UZ15BS. Clint VanOrsdell dbA Video Van, 90 Rockland St, Hanover, MA 02339 781-826-8983 In a message dated 5/1/02 12:48:47 PM Eastern Daylight Time, tvdoctors@xxxxxxxxxxxxx writes: > Does anyone know what the voltage rating for zener diode D12 in the power > supply for this unit? TIA, Neil > > > TV Doctors 108 W. Main St. Monroe,Wa. 98272 360-794-6469 ------------------------------------------ To REMOVE your email address, click here: http://www.tech-assist.org/unsubb.html ------------------------------------------ ***NEW*** Tips Added Instantly!!!*** Submit Repair Tips here: http://www.tech-assist.org/secure/tip/