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TV set click's on and off when push power button as if a bad relay, etc.

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Hi! your unit has trouble on the power supply or its near by circuit that is why it shuts off for protection.

Posted on Sep 12, 2009

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My push button start switch not working on M/C..


Sounds like a bad relay... the relay switches all power to the solenoid to start the bike... when you let off of the starter it turns the lights etc back on. If the relay goes bad... starter button will not work, and no power to the headlight/taillight/dashlights... the relay is fairly cheep, 10 to 15 bucks....so its a pretty cheap test to see if that is what is wrong.

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Mitsubishi Medallion does this


hi there,

Check for bad solder on convergence module. May have bad stk's. Do not neglect looking for bad solder on dsignal and defl boards. Mitsubishi is very prone to bad solder.

`jack

May 26, 2008 | Mitsubishi WS-55411 55" Rear Projection...

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Power button on my rca tv wont turn on sometimes


A number of possible reasons for this---failing part in set or even bad connections on main board in the set----model listed is prone to going dead with high pitched squeel etc.

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My hitachi 46f500 tv wont stay turned on. you turn it on the red light comes on and then you here it click once then shuts off. It has done this in the past, then for no reason it will start working again.


This model like most of these sets uses up to 3 mechanical relays; they are black and square (follow power cord into set) and have a history of either opening or not when in use---I have seen several where it would not shut off or turn on etc where you could tap on the relay and the set would work..
The only other reason would be a bad solder connection in the same area---tap and the set works and it is either the relay or a bad solder connection.

The click is the relay shutting off and points to where your problem is.

If you have questions comment here and I will help.

SD TECH

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1 Answer

I replaced the starter relay and still no starter action there is no power coming from the relay to the starter but the positive lead from the battery to the starter relay has 11.98 volts. 2001 660...


When you push the start button and the relay clicks the lead from the relay to the starter should have 12volts. If it doesnt you either the relay is bad or the cable(lead) is bad from the relay to the starter.Hope this helps.
D.

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Samsung tv model no LE40R74BDXIXEU TV IS USUALLY


First the main bd controls the "Turn on" sequences". When you press the Power on button the Main bd sends a "Turn on" signal to the Power supply. The clicking you hear is the Power on relay ativating. If the tv does not turn on and the relay keeps clicking then you might have a bad Main bd or there is s shorted board somewhere else in the set. The Power supply can also be bad. Have a trained Samsung tech troubleshoot the set.

Jul 12, 2009 | Samsung Televison & Video

1 Answer

No power


It sounds to me that you have a bad HV/Power Supply Board. Before opening the back of the set, always unplug the set from the wall. If you can check electronic components ( ie: transistors, capacitors, fuses etc ) I suggest you check the Horizontal Output Transistor first. If it's not that transistor, check for cold solder joints ( loose connected parts from the printed circuit board ) and re-solder all bad connections. If the set still doesn't work, you may need to seek professional help, as the problem is more deeply laden and you may need to obtain a schematic to repair the set. I hope this has helped. Good luck on your problem.
Ed
NC Electronics
Mills, Wyoming

Feb 18, 2008 | Mitsubishi VS-6041 60" Rear Projection...

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TV Won'T Turn On


A fuse is not your problem. this TV has a safty feture that when it senses a problem it cuts the power to prevent any fouther damage, when you un plug it the TV resets and it will turn on agian. I have the same TV Check the CRT light guns there are 3 of them. If one goes bad it will cause your problem.

Sep 22, 2007 | Panasonic PT-51HX41 51" Rear Projection...

1 Answer

RCA F20539DG


YOU might have a bad relay or a bad solder connection in the relay control circuit. Sounds like a bad solder joint. Stargazer

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