Well i'm a complete newbie. So I'm teaching my self electronics and I find the best way for me is to learn by doing so i've been buying broken stuff and fixing it. So far I've had it pretty easy. tv's with bad caps infact most have been bad caps. Home cinema amps, subs. fixing smartphones but you only learn a bit because it's mostly just changing parts.
The latest thing I've bought is a 3D blue ray after testing it i've established its down to low voltage off 2 of the pins on the power supply board, one at -19v instead of -24v and one at 11v instead of 12v.
I've tested all the caps i can with my meter, 200uf or below. I changed the others to be safe. They're cheap and it'll help my soldering. checked all the rectifier diodes. I haven't checked the transformer as a. i'm not sure how to test it and i can't find a bata sheet. b. if it was bad would it not just provide no voltage?
What should i check next? Its got to be the voltage issue right? Maybe it has some sort of voltage regulator. I found out it's usually connected to a heat sync but whats on this one is the barrier rectifier.
This one has taught me a lot. i know its fairly simple board but like i said still learning.
The latest thing I've bought is a 3D blue ray after testing it i've established its down to low voltage off 2 of the pins on the power supply board, one at -19v instead of -24v and one at 11v instead of 12v.
I've tested all the caps i can with my meter, 200uf or below. I changed the others to be safe. They're cheap and it'll help my soldering. checked all the rectifier diodes. I haven't checked the transformer as a. i'm not sure how to test it and i can't find a bata sheet. b. if it was bad would it not just provide no voltage?
What should i check next? Its got to be the voltage issue right? Maybe it has some sort of voltage regulator. I found out it's usually connected to a heat sync but whats on this one is the barrier rectifier.
This one has taught me a lot. i know its fairly simple board but like i said still learning.