Question about Toshiba CZ36V61 TV
This set was hit by lightning, I'm told. The audio cable was disconnected, and there is a red marker line across what appears to be the audio amp! Is it a normal procedure for techs to mark a alleged failed part like this? Any ideas of where to look for suggestions? I do have some basic understanding of electronics, and can check diodes, resistors, etc., but I need an area or device to check suggestion! Any help or suggestions will be most appreciated. Thanks
Hi. The red line on ICS is quite normal it does not mean the part has failed. To be honest in most cases if a tv has been hit by strike it is a right off & scapped. What I suggest is to remove the main pcb & power supply pcb if its seperate & inspect the print side of pcb for signs of arcing tracking or burnt track. Repair any damaged track by cleaning off the coating to get at clean copper then solder wire accros to bridge the damage. Check the power supply resistors diodes transistors look carefully for any burnt components or components which are physicaly damaged. Check the line output transistor this will be near the large transformer with a thick red ht lead going up to the crt. Check all the components you can in the line stage look at all the ICS to ensure none of them have holes in them or have blown apart. Hopefully you find some or one if your very lucky that is damaged replace it & try your tv.
Posted on Sep 23, 2007
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