I am trying to repair an RCA 9" Color TV #E09344 (5/2002)
I need to find a replacement Horz Output Transistor # ST1803DHI Where would be the best place to get one? Most places have a min order price and I only need 1 part.
Guaranteed something else caused this part to fail. You need to post the complete CHASSIS number and your deflection stage troubleshooting.
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Solution #2
posted on Aug 01, 2007
M0nica L - usenet poster
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Part number is 198794. Don't sub because it won't work. I agree though. This transistor does not short without a cause. These are a complex set to fix. I assume it's shorted center lead (collector) to one on the other 2 leads? It's normal to measure a short between the 2 outer leads E-B in circuit, and out of circuit normal to read about 25 ohms.
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Solution #3
posted on Aug 01, 2007
Gary10 - usenet poster
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Your local service shop that does RCA/GE repair may be of assistance, probably charge full list price for it though. Maybe you can shop on line, "Google", for the item or see if E-Bay can supply a working 9" at modest charge? BTW what caused that transistor to blow out, is the LOPT ok?? May want to check out the associated components also, including, do you have drive to the output and proper bias voltages. ...
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