Hi guys I've been working on a dual din radio for a car.
Problem is sometimes turns on sometimes down. I traced the tft_on line to a smd transistor? Has markings "halg"
What I noticed is there's 0v on top lead then when powered on it momentarily goes high to 5v then drops to 0v (this is when the display powers on as it should)
When the display doesn't turn on the top lead goes high to 5v and doesn't drop stays high at 5v
Would this part be the problem or something else? I've included a pic
Problem is sometimes turns on sometimes down. I traced the tft_on line to a smd transistor? Has markings "halg"
What I noticed is there's 0v on top lead then when powered on it momentarily goes high to 5v then drops to 0v (this is when the display powers on as it should)
When the display doesn't turn on the top lead goes high to 5v and doesn't drop stays high at 5v
Would this part be the problem or something else? I've included a pic
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