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

From: "Damon" <DamonEB@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Date: Sun, 18 Dec 2005 06:51:32 -0500

Pull the Horiz output and see if it clicks on/off.....then do the 40W or 60W
light bulb load test, if it STOPs clicking on/off.....first part checks for
OVP, 2nd part checks for OCP operations.....

I think the STR5141G has been known to do this, make sure you replace it
with an original G series.
Also, if you find a transistor/zener tucked in near the backside of the
5141g's heat sink, I've seen those get temp-sensitive and cause
shutdown......

Damon B
Telrad Electronics
Fort Wayne IN
----- Original Message -----
From: "Robinson Electronics" <RobinsonElectronics@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, December 17, 2005 3:23 PM
Subject: [TechAssist] Mitsubishi 35in. CS-3515R. H.V. shutdown, Relay clicks
on for .5 sec. then clicks off, after 3 sec., keeps repeating


> 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
>
> --------------------------------------------------------------------------
---
> This Email List is accessible to the general public through search
engines. Remove: http://www.tech-assist.org/remove.htm
> Set Vacation
mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation
> Lost Password: http://www.tech-assist.org  and select "Login Problems?".
> Email Archives: //www.freelists.org/archives/techassist/
>


-----------------------------------------------------------------------------
This Email List is accessible to the general public through search engines. 
Remove: http://www.tech-assist.org/remove.htm
Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation
Lost Password: http://www.tech-assist.org  and select "Login Problems?".
Email Archives: //www.freelists.org/archives/techassist/

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

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

Other related posts: