About Henry A. McKelvey Expertise I have worked in the Electronics field for 25 years, and have been a Telecommunications Expert for 20 years. My Expertise has been in: Video, Audio, RF, Television, and Stereo. I have been in the Television repair business for 25 years and have repaired over 20,000 Televisions in that time. I was a manager of an Information Technology Training Team at The Verizon Advanced Services Group Center, and a Distinguished Member of Technical Staff at Verizon Laboratories. I am now working full time in the TV repair industry until I can find another full time job, I know what your question is: "why don't you just work full time in the TV repair industry permanently?" Well the answer to that is simple, due to the complexity and the DIY craze, TV repair work is at best a good way to make extra money, not to rely on it for your livelihood. A sad truth, but a truth nonetheless.
Experience 25 years as an Electronics Repair Technician, 20 years as a Telecommunications Expert, and I love Electronics.
Organizations The Society of Broadcast Engineers (SBE)
The International Society of Certified Electronics Technicians (ISCET)
Publications On-Line: http://www.fixya.com/users/shuttle83 (solutions to repair issues)
US Patent and Trade Office: (Copy and paste the link below)
http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=0&f=S&l=50&TERM1=McKelvey&FIELD1=&co1=AND&TERM2=Verizon&FIELD2=&d=PG01
Education/Credentials University of Phoenix (MSCIS working on)
University of Phoenix (BSIT 2006)
World College CIE (BTEE 2006)
Cleveland Institute of Technology (ASEE 2006)
National Education Center (Diploma in Commputer and Network Technology 1989)
TESST Electronics School (Diploma in Electronics Engineering Technology 1985)
AG Bell Vocational High School (Diploma in Electronics Repair (Radio and Television Repair 1983)
Awards and Honors Society of Broadcast Engineers Membership (July 2006)
Special Technology Achievement & Recognition Award (STAR Award) August 2004 (ISO 9000 Certification VTO-SIT)
CWNP Certified Wireless Network Administrator (June 2004)
Special Technology Achievement & Recognition Award (STAR Award) September 2003 (MSN Project)
Special Technology Achievement & Recognition Award (STAR Award) November 2003 (Client CD and Registration Server Issue)
Network Management Certification (ICCP)(2002)
Data Communications Engineer Certification (Global Knowledge)(2002)
TCP/IP Network Analyst Certification (ICCP) (2002)
Winners Circle Award for Development of the DNOC Provisional training Team (2001)
FCC License General Radiotelephone without endorsement (1985)
FCC License General Radiotelephone with shipboard RADAR endorsement (1985)
Certified Electronics Technician Certificate (Electronic Communications)(1989)
Certified Electronics Technician Certificate (Consumer Electronics)(1985)
6 Patent Applications on file (do google search on "Henry A. McKelvey")
Past/Present Clients See http://www.fixya.com/users/shuttle83
http://www.google.com/search?hl=en&rlz=1T4DMUS_enUS243US243&q=%22Henry+A.+McKelvey%22+TV+Repair&aq=f&oq=&aqi=
Question I have a CS-40507 Mitsubishi TV with matching cabinet stand from 1996. It is an awesome TV. One day recently the picture suddenly went from perfect to totally black. Is it worth fixing?
Answer Hello Steve,
I will assume that you still have sound. If this is the case then the problem could be any were along the video signal path this includes the:
1) last IF stage
2) The video processor
3) The color processor (could be part of the video processor)
4) video driver boards for the RED GREEN BLUE CRTs
5) High voltage power supply (provide high voltage for the CRTs)
6) Low voltage power supply (is used to provide filament voltage for the CRTs)
Any one of these systems and their associated circuits could be the cause of your problem.
Whether or not it's worth fixing is actually up to you. This is an older TV and more problems are likely to happen, and with the move to DTV there is that problem (if you don't have cable, satellite or a converter box).
