Replacing LG TV Shorted Horizontal Transistor C6090
A few days ago, I encountered a damaged LG TV with a shorted horizontal transistor C6090. Before replacing it, I checked the 18 nano (182) capacitor to ensure it wasn't the cause of the failure. Since I didn't have a spare C6090 in stock at home and the local stores were out, I had to find a suitable substitute.
Horizontal Transistor C6090 Replacements & Substitutes
1. Equivalents for LG C6090 (21-inch Pearlblack)
- C6092
- C6093
- BU2520AF
2. Substitutes for LG TV Slim Horizontal Transistors
- C6092
- TT2138
- C6090
- TT2222
- J6810
- D2499
3. Equivalents for Toshiba TV (29-inch)
- D2498
- D1878
Frequently Asked Questions (FAQ)
Q: Can I use a replacement transistor with a different number?
A: Yes, you can, as long as the voltage, amperage, and internal damper diode specifications match or exceed the original C6090 specs.
Q: Why is the 182 capacitor (18 nano) so important?
A: If the resonance capacitor (182) is weak or faulty, the voltage pulse on the horizontal transistor becomes too high, which will immediately destroy the new transistor.
Q: What should I check if the transistor gets hot quickly?
A: Check the soldering joints on the flyback transformer, ensure the heatsink is properly installed with thermal paste, and verify that the drive voltage from the oscillator is stable.
thank you
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