Re: Benchtop Power Supply troubleshooting

With no load those voltages look ok. The bridge could be failing under load, but doubtfull. You could check by pulling the red and black lead from the bridge and use clip leads to connect a heavy load (maybe car headlight) and check voltages. Low beam headlight is about 35 watts, high beam about 55 watts and with 12v/6a you should be able to do 72 watts. You are probably correct about the trigger. In picture two, the pot on the left named "shut down" is probably the adjustment for some type of comparator circuit that shuts the...

Re: Transistors identification

Those look like H/P part numbers but they don't show on the cross ref. charts. What are these out of, if I may ask?

Re: Acer AL1916W A

OK, think I got the photos resized. Any help would be greatly appreciated....

Hi everyone,

New guy here. Been lurking and reading for awhile now and all I can say after looking at some other forums out there is WOW! The people and information here is fantastic! The forums here have helped me fix a couple of things already (computer PSUs that I thought were ready for scrap heap.) Just a little FYI about me, I was a electronics tech. about 30 years ago, (back in the good old days of analog). Trouble shot and repaired TV sets, amplifiers, radios things like that. I got out of it about the time the digital revelution took over. I have still stuck with some...