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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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UPDATE: RCA TV model 14512T Repaired
Hi,
I repaired RCA TV model 14F512T with no vertical deflection problem. R409 1ohm was open. IC301 ("TDA4864AJ" on device) is bad, but I couldn't get a direct replacement (not available). A "substitute", part number 264870 (STV9302A) was sent, is NOT A DIRECT REPLACEMENT. After several attempts to get the correct part failed, I decided to "configure" the "substitute", based on info I downloaded on it and the original part. MODIFICATIONS: Remove R307 220 ohm. STV9302A TDA4864A7 (orig.) PIN 1 goes to PIN 6 hole in PCB PIN 2 '' PIN 1 hole PIN 3 '' PIN 2 hole PIN 6 '' PIN 3 hole Other pins go to the same number holes in PCB. I used wires on a few pins because the pins couldn't reach. You may prefer modifying the PCB instead. Brad Before you type your password, credit card number, etc., be sure there is no active keystroke logger (spyware) in your PC. |
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