Tip & How-To about Sanyo Televison & Video
This fault appears on picture tube based televisions are due to low EHT [Extra High Tension} voltage from the LOT [Line Output Transformer] or [Fly back Transformer]. There are mainly two cusses for this. The first one is with the high voltage rectifying diodes. These diodes are within the LOT itself, and will be sealed; and no replacement can be done. If the fault is with these diodes/diode; there is no other way than replacing the LOT as a unit.
The second possibility is with the free wheeling capacitors. Replace the capacitors connected to the collector of the horizontal output transistor to negative ground point. There will be a capacitor with high voltage ratings. Replace the yolk return capacitor too. If these do not help, replace the Line Output Transformer.The third possibility is with its picture tube connector socket. This socket can be located at the CRT base card. This is a common fault seen with most of the CRT TVs. If this socket have fault, the set will take more time to display picture. Usually 15 to 30 minutes.
Posted by The Knight... on
Jul 04, 2011 | RCA F36650 36" TV
Nov 21, 2010 | Philips 14PT1686 14" TV
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