Philco PB500BT TV Repair: Common Faults and Solutions.

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Philco PB500BT Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem	Solution	By
PHILCO	PB500BT	Sound works and shuts down	Works and off
PHILCO	PB500BT	Not switching auxiliary input on plug p2	When opening the jack I saw that the switch was disassembled, I reassembled it and it returned to normal		Paulo Teixeira
PHILCO	PB500BT	LEDs light up, panel lights up without function and a big buzzing sound in the tuner function (radio)	Voltage regulator 7805 - it was good but poorly counted on the board. It resolved as soon as I removed it and soldered it again.		JOAQUIM
PHILCO	PB500BT	It turns on the first time, after a while if it turns off it won't turn on again, just unplug it, and when it works, the display and the power LED keep flashing	Change the ic4 if 3.3v on the panel board, in my case I couldn't find the same, I used a reg7805 with two 4007 at the output and a zener3v3 diode, it stopped flashing and worked perfectly,	Be careful with the original regulator, it has different input and output pin positions	Rodrigo cofferi
SOM PHILCO	PB500BT	The device makes a humming sound, a constant noise without sound coming out.	We just need to change the 5-vot regulator, ok, the dc 7805 only has one on the board.		Galileu Rocha
PHILCO	PB500BT	Turns on for a few seconds and turns off the display and turns off the sound, returning to stand by	Ic 4, ht7533 on the display panel, replace the same one or another 3.3v regulator. Be careful with other regulators, as the input and output are different.		Ev antunes
PHILCO	PB500BT	Panel works, but makes a buzzing noise and does not perform functions	Burnt 5 volt CD7805 regulator	Replace regulator 7805	NilPassos