Philips 27PT543S (27" tube) -- no picture/sound

[flipz]

Ok, I was just able to enter SDAM and get error codes off of the blinking LED. This is what it apparently indicated:

10 4 5 6 2

10: Tuner, Tuner I2C identification error. 1000, 7482
4: MSP34X5/TDA9853, MAP I2C identification error. 7831
5: TDA95XX, POR 3.3V / 8V Protection. 7200, 7560, 7480
6: I2C bus, General I2C bus error. 7200, 3624, 3625
2: n/a, Horizontal protection. 7460, 7461, 7462, 7463, 6467

Hrmm.... that's a lot of problems.

[twagz]

Try replacing C2455...it is off pin 3 of the flyback. The transistors that usually go bad are Q7460 which is the H.O.T., and also Q7461, Q7462, and Q7463. You can check the transistors easily if you have a diode check on your multimeter...

[Gizzard]

Does anyone know the specs on Q7460? I de-soldered it from the pcb and then it went flying.....