Question about Televison & Video
Elkot+q7+zd4 changed> +5v ok, +12v and +24v no!
Posted by Anonymous on
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Posted on Jan 02, 2017
hi remove the supply to the main board & inverter, now power your psu if give you this same above voltages , go for new power supply unit. change your power
Posted on Oct 12, 2008
The 5 volts is the standby voltage that should always be present, the other voltages should be there when you try to turn the LCD ON.
If the 5 volts standby are not steady when connected to the main board, Q7 might be defective.
Check all the capacitors in the secondary circuitry for bulging or leaking conditions.
Posted on Aug 28, 2010
It means the feedback circuits for regulating the 12/24vdc is not working, use 12v car bulb (1157) to load down the 12vdc supply and two 1157 is series to load down the 24vdc power supply and see it if still rises up, the stange thing is that you said it rises to 36vdc (12 + 24 = 36), is it being measure correctly?
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Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Posted on Sep 07, 2010
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