[TechAssist] Re: Mitsubishi CS 3550S Blows H.O.T

LeRoy,
Did you copy model number wrong?
From Tech Repair CD:
MITSUBISHI\CS35503\DEAD BLOWS Horiz-OUTPUT TRANSISTOR AT FULL VOLTAGE AS SOON\AS
TURNED ON* WILL RUN WITH BULB IN PLACE OF Z 501\\\main problem c511 change from
220uf at 16vdc to 470uf at\16vdc. POSITION C511 AWAY FROM HEAT PRODUCING
COMPONENTS\PARTS AVAILABLE IN PART #KIT-HZ40/35\\\\\\

FAX 717-564-4952
Jeff Dougherty
Intrepid Video & Electronics      Be careful of your thoughts.
501 Luther Rd                        They may become your words
Harrisburg, PA 17111                            any moment.
VCR tips, electronics info & general interest.
www.intrepid-video.com www.tech-repair.net
www.thetoolcaddy.com www.9-11-2001tragedy.com
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----- Original Message -----
From: "LeRoy Westlund" <llw@xxxxxxxxxx>
To: "TechAssist" <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, January 29, 2003 2:55 PM
Subject: [TechAssist] Mitsubishi CS 3550S Blows H.O.T



Hi Gang,
This Mits is giving me a bad time. It came in with a Blown H.O.T (2SD2349),
and a hole in the Vertical Output IC (TA8427K). I replaced both of these
with OEM parts,..installed a new B+ fuse, soldered Horz. driver transformer,
and couldn't see any bad connections. I fired it up, and as soon as I heard
the static from the high voltage come up, it blew the H.O.T, and B+ fuse
almost instantly. I am thinking about removing and ringing the IFT, but,
just wanted to see if you guys have any other ideas first. I might change
the Reg IC (STRM6511), and try again, but, I only have ONE more H.O.T., in
stock. Don't want to blow it, if no need to.

Any help is appreciated,
LLW

LeRoy Westlund
Westlund TV & Electronics        " Walk tall,...Walk straight
93 North Main                                   and look the world
Centerfield, UT 84622-0087                 right in the eye "
Ph./Fax  435-528-3822
mailto:LLW@xxxxxxxxxx


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