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TV-430 i have one of these pocket TV's. Its dead. The Clock crystal is working but no picture or sound. Some filter electrolytic Caps are heating up. i have 6v DC supplied. Please email me at " [email protected]"

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  • Anonymous Mar 18, 2008

    By the way its a casio TV-430 LCD, very small. pocket size nd runs off 4 x AA batteries totalling 6 volts

  • Hammad Rahman Jun 30, 2012

    me too. When i turn it on, the screen turns green, and in the background their is a faint squeeking noise.



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G´day Allen.
I have a Casio 430, with same problem.
Did you get a fix for yours?
Marcio Antidio [email protected]

Posted on Jun 09, 2010


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If you get it open examine the filter caps on the power supply board to see if any are puffed up on top---the tops are silver and should be perfectly flat with no brown material leaking out at top or bottom.

I suspect based on description a component (likely a big IC) failed and they are usually covered with a metal heat sink (plate) so cannot be actually seen---they pop and dead set.
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More often than not, this is caused by faulty sustain boards. I would like you to take off the back cover and observe for faulty caps on the two boards labelled X-main and Y-Main. The electrolytic caps(will be cylindrical in shape and will have an X mark at the top)caps will be bulged, cracked or blown off if they are bad. If its ceramic caps you are bound to see some burn marks on the board near them. Look for any other signs of evident damage, and if you find any replace both of the sustain boards(should cost you around 150-200$) as these boards usually take out one another when they go bad.

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From what you're describing it sounds like ring-cracked solder joints or maybe a couple of failed caps. What's the model number???
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Drop me a post and let me know what the model number is and I can look it up for common problems in the schematics and service manual.

BTW: Uk is a bit beyond my normal servicing route... :)

William Rayburn, CET
Premium Technologies
PO Box 442
Long Beach, WA. 98631
[email protected]

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See This Link

or read below:

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