what are you listening to?

George S. said:
That photo really makes me want to get the PL version. That Pioneer is really, really nice. I need to start reading up on those troublesome ICs on them and what the solutions are. I'm guessing a recap before they go bad. Beautiful.
Click to expand...
Fortunately the IC’s seem to be pretty bulletproof and I have not seen or heard of one failing yet. Glen got one with a bad board but root cause is unknown yet if I remember correctly. Replacing the caps is probably a good idea but so far I have not needed to. They are wonderful TT’s, especially with a AT540 ML.
 
David Allan Coe "Once Upon A Rhyme" 1975 Columbia Records Played this last night on the Pro-ject Debut III w/2M Blue. Sounded a little rough. Fair amount of distortion on vocals. Ran it through the Spin Clean and the record vac but didn't help. Today I brought it upstairs and played it on my Technics 1210 MK5 w/2M Black. Cut right through any groove damage. The Sugarcube took care of the rest. Sounds terrific!P_20220719_174808_vHDR_Auto.jpg
 
Last edited:
NeverSatisfied said:
Fortunately the IC’s seem to be pretty bulletproof and I have not seen or heard of one failing yet. Glen got one with a bad board but root cause is unknown yet if I remember correctly. Replacing the caps is probably a good idea but so far I have not needed to. They are wonderful TT’s, especially with a AT540 ML.
Click to expand...
I second this. I only wanted to source replacements ic’s for future needs. The board Spencer refuses to will be retested next week with some trace repair done. The pl8000 is wonderful unit.
 
WOPL Sniffer said:
HUH?
Click to expand...
Ok there is the deal
not to get off topic but the Pl8000 pl l1000 and the like use pioneer branded ic’s. They are not available at reasonable price. We are working getting crossover ‘s for them. These 1980 Pioneers are at the height of design and quality. Simplest this is get a broken unit with the parts in it as I have now is store.
 
There may not be a direct cross for those chips- they may be unique to Pioneer. They had the buying power to get a run of unique chips done.

BUT, and I think I mentioned this earlier (or elsewhere), the chip needs to be reverse-engineered (if possible) to determine what is going on inside, and then a daughter board can be made to replicate the functionality of the chip.

There are thermal advantages to a chip package sometimes but I think the demand on these chips in question is very low.
 
grapplesaw said:
Ok there is the deal
not to get off topic but the Pl8000 pl l1000 and the like use pioneer branded ic’s. They are not available at reasonable price. We are working getting crossover ‘s for them. These 1980 Pioneers are at the height of design and quality. Simplest this is get a broken unit with the parts in it as I have now is store.
Click to expand...

I dig THAT part, I just couldn't understand the chopped up post.
 
You must log in or register to reply here.
Back
Top