[TechAssist] Re: Mitsubishi 35in. CS-3515R. H.V. shutdown, Relay clicks on for .5 sec. then clicks off, after 3 sec., keeps repeating

  • From: "John Conti" <contitv@xxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Sat, 17 Dec 2005 15:17:35 -0600

Check R5K7  (33k 3watt), Also check Strs regulator,And  c913 the green cap.
On the video board check c3145 (22 uf 16v) C3144 (10uf 25v) C225 (47uf 35v), 
C654 (10uf 25v)

On the deflection board check c963 (1000uf 50v) C4E5 (220 35v) C5H9 (47 uf 
50v) C4F3 (100 uf 50v, C4e6 (2200 uf 25v) C4E4 ((100uf 35v). More than 
likely the regulator will be bad. Thats all I have on this.

Good Luck
John
Conti,sTV
Texas
>From: "Robinson Electronics" <RobinsonElectronics@xxxxxxxxxxx>
>Reply-To: techassist@xxxxxxxxxxxxx
>To: <techassist@xxxxxxxxxxxxx>
>Subject: [TechAssist] Mitsubishi 35in. CS-3515R. H.V. shutdown, Relay 
>clicks on for .5 sec. then clicks off, after 3 sec., keeps repeating
>Date: Sat, 17 Dec 2005 15:23:00 -0500
>
>Can any of you Mitsubishi Techs help us with this?
>When you power on, relay clicks on, then off, h.v. from flyback comes up,
>then shuts down. Keeps repeating the shutdown cycle as long as it is 
>plugged
>in, relay clicks after 3 sec. clicks again, keeps repeating.
>I changed all the caps that I had listed as possible bad - they were 
>leaking
>on board.
>Replaced: C921, 925, 926, 930, 914, 916, 965, 538, 933, 935, 936.
>Hor. out xstr checks good.
>R903 measures 220k (ok)
>R956 measures 100k (ok)
>R960 checks ok in circuit .33
>Have not replaced "strs5141g" the IC901 regulator yet, not sure if it is
>bad. (Waiting on part).
>Did not see any tips indicating a bad flyback as a common shutdown problem.
>Has anyone ran into this shutdown problem, where the relay cycles on /off,
>and repeats?
>All help appreciated on this.    Thanks.        David.
>
>
>Robinson Electronics
>1075 Sweeten Creek Road #51
>Asheville, NC 28803-1757
>Ph./Fax. 828  274-3787
>Toll Free. 1-888 ROBELECT
>www.robinsonelectronics.com
>www.robelect.com
>Mailto: RobinsonElectronics@xxxxxxxxxxx
>
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