Search results

Okay, so I have the following results: 1/4 turn clockwise: 12v: 12.06v 5v: 4.57v 1/2 turn clockwise 12v: 13.11v 5v: unmeasured, turned it off due to excessive 12v 1/3 clockwise with small adjustments: 12v: 12.74v 5v: 4.81-4.85v The final few tests, this was the best result I could get on...

No, can do that now though. What sort of increments should I be turning each test, and what can I expect it to raise/lower by? Guessing aiming for +12v & +5v?

Thank you. What else can be replaced to influence this? Could the white Security Caps (pictured above) cause this, if broken, and should they be replaced?

Only slightly. Have 11.91 & 4.49 no matter whether cold boot (pic 1) or second boot (pic 2).

In addendum. I noticed from another topic here that the security capacitors don't look great. Could these be the culprit? (all replaced caps are labelled with black dots or "22" to signify year).

So, after a couple of months wait for components, everything has arrived and been replaced. Hoping for some more insight: AB #1: Still awaiting TDA4605, everything else replaced. AB #2: Complete recap performed (20+ capacitors) checked & rechecked. PP1 removed, 99% IPA bath, brushed gently...

Great advice, thanks all. Plans: AB #1: Replace components @dochilli described. Check solder joints over AB #2: Recap. Remove PP1, clean. Would 99% IPA do for cleaning? Have also been reading this thread...

Thank you! I have done this, safety first is a good mantra. I ended up ordering all the parts on eBay, don't mind waiting a little longer. But will keep mouser in mind, their shipping is lightning fast. Have double-checked the polarity of all caps on the recapped board. There was a fair bit of...

This is perfect. The power connector's solder joints look okay. -edit again- is there more than 1 fuse? I only found a single 3.15A 250V, and it looks fine. I have found a source of 1N4148 diodes. Will a 4605-3, CNY17G-3, and IRFBC40S do for replacements? Can also easily source these. For...

Thanks. That makes sense. Which part is the optocoupler? Are replacements easily available? How do I check the voltage? Strangely, after swapping them out, the new-old AB doesn't produce anything. Both give no indication of booting, sound, anything. Is there perhaps a logic board reason for...

'Evening all, On the right, I have an analog board from a carefully restored Classic in excellent condition. All of the capacitors were leaking. It has been fully recapped but doesn't work, and has been a bit of work to troubleshoot for a beginner. On the right, an analog board from a booting...