Sanyo model ds31590


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Sanyo model ds31590

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bzpac
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Aug 9, 2005, 11:40 PM

Post #1 of 3 (2100 views)
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Sanyo model ds31590	Can't Post

Looking for help have sanyo with no picture found burned vertical output chip. Burn marks at pin 3 on LA7841 vert output. Replaced when turning on tv took out a 1 ohm resistor in the b+ comming from the flyback transformer. Any one with any thoughts Thanks Bill

Hect7369
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Aug 10, 2005, 5:52 AM

Post #2 of 3 (2089 views)
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Re: [bzpac] Sanyo model ds31590 [In reply to]	Can't Post

After,replacing IC output Vert,check for Zener diodes and rect-diode (Vert.VVc)near of Flyback transformer,one of these,are shorted!!!

mel
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Aug 10, 2005, 10:52 PM

Post #3 of 3 (2079 views)
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Re: [Hect7369] Sanyo model ds31590 [In reply to]	Can't Post

Check your soldering. Ity is easy to form a solder bridge between the pins when working in such close quarters.

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