Here chook chook chook chook chook.... 😀
Normally I also use multiturn.
But for this I went for originals to keep it, original.
Depending on how this one works out, later I'll do some preventative maintenance on my x1 possibly with multiturns.
Interesting to note.
My unit is a slightly later serial number.
Mine has the smaller 'black box' power supply. Friends has the matching chassis power supply.
Both mine and my friends x1 have been to PL at some stage.
Mine has ugs 6, Friends has ugs 4.
Very obviously the ugs in mine have been replaced.
Yes I know, this is all super interesting to everyone
But I notice small things like this.
Normally I also use multiturn.
But for this I went for originals to keep it, original.
Depending on how this one works out, later I'll do some preventative maintenance on my x1 possibly with multiturns.
Interesting to note.
My unit is a slightly later serial number.
Mine has the smaller 'black box' power supply. Friends has the matching chassis power supply.
Both mine and my friends x1 have been to PL at some stage.
Mine has ugs 6, Friends has ugs 4.
Very obviously the ugs in mine have been replaced.
Yes I know, this is all super interesting to everyone
But I notice small things like this.
Well, here I am again.
Trimpots arrived this arvo, so they've been installed, and the result is, silence.
The fault is now gone, cured, banished.
Even really firm wacks on the boards and relays have zero effect.
Those old trimpots must have been seriously bad.
I did a quick adjustment tonight, tomorrow I will give them a proper final adjustment.
I am perplexed as to how swapping the left/right ugs boards had no effect on the fault staying in the right channel.
Maybe both ugs needed work but only the right side main board was sensitive to any upstream failure.
In any event, both ugs are done.
I would very much like to thank Wayne, not just for an exception product, but also for helping out with information.
Many thanks also goes to cyclotronguy (Kent - I wonder, is this PL Kent ?) for his 'cheat sheet' and suggestions that were 100% spot on the money.
Ahhhhhhhhh another X1 back into circulation to make glorious music for another 23+ years 🙂
Trimpots arrived this arvo, so they've been installed, and the result is, silence.
The fault is now gone, cured, banished.
Even really firm wacks on the boards and relays have zero effect.
Those old trimpots must have been seriously bad.
I did a quick adjustment tonight, tomorrow I will give them a proper final adjustment.
I am perplexed as to how swapping the left/right ugs boards had no effect on the fault staying in the right channel.
Maybe both ugs needed work but only the right side main board was sensitive to any upstream failure.
In any event, both ugs are done.
I would very much like to thank Wayne, not just for an exception product, but also for helping out with information.
Many thanks also goes to cyclotronguy (Kent - I wonder, is this PL Kent ?) for his 'cheat sheet' and suggestions that were 100% spot on the money.
Ahhhhhhhhh another X1 back into circulation to make glorious music for another 23+ years 🙂
Wow.
Shows just how much all the people at PL really do care and continue to support their product way beyond realistic expectations.
I'm also thankful for Zen Mods help in previous posts. (I do love your sense of humour too).
Shows just how much all the people at PL really do care and continue to support their product way beyond realistic expectations.
I'm also thankful for Zen Mods help in previous posts. (I do love your sense of humour too).
Final verdict is in from the owner.
It works and sounds lovely 🙂
Case closed.
It works and sounds lovely 🙂
Case closed.
Just gave my X1 a reno.
Even with 25 turn trimpots, it's still not fun trying to tune the ugs modules.
I guess there's no hidden secret to this other than tiny bites at a time ?
Even with 25 turn trimpots, it's still not fun trying to tune the ugs modules.
I guess there's no hidden secret to this other than tiny bites at a time ?
Except with single turns, you Know your limited in what you can do.
So that makes the end setting an easier finality 😀
So that makes the end setting an easier finality 😀
^ I do not understand what you mean by, "your (sic) limited in what you can do."
Can you help me understand, please. I struggle in why to use multi-turn vs. single-turn often.
Can you help me understand, please. I struggle in why to use multi-turn vs. single-turn often.
simple enough - if you're Chicken as ZM and you're not overly knowing whatthishappeningthere as ZM, use multiturn
(I made my own Eagle footprint for multiturns, combining pins in line and pins zgzg, one thing less to worry when ordering parts)
(I made my own Eagle footprint for multiturns, combining pins in line and pins zgzg, one thing less to worry when ordering parts)
Have the inputs loaded and keep the top on to the greatest extent possible. Here at the factory we normally adjust the DCO first with the amp cold, and again the next day when it's warm. The X1 DCO adjustment should go very quickly. Personally I prefer 1 turn pots on the UGS modules in the X1 / X2.5
The 10 turn pots generally have way to much hysteresis.
The 10 turn pots generally have way to much hysteresis.
Sir Kent.
Once again you are the voice of brilliance 🙂
It does seem my main issue is the hysteresis of the multi turn pots. I really should know better than trying to improve on perfection.
I have ordered some less silly pots. (Probably won't have those till next week at a guess)
Yes I had the top covered as I know they can be temperature variable. (winter here so temps are for the most part under 20deg Celsius - 68F to you gents)
Just moving my make shift covers a little to get to the pots can alter the readings.
When I swap in the new pots, I will also load down the inputs.
Once again I thank you profusely, May your week be filled with happiness 😀
Once again you are the voice of brilliance 🙂
It does seem my main issue is the hysteresis of the multi turn pots. I really should know better than trying to improve on perfection.
I have ordered some less silly pots. (Probably won't have those till next week at a guess)
Yes I had the top covered as I know they can be temperature variable. (winter here so temps are for the most part under 20deg Celsius - 68F to you gents)
Just moving my make shift covers a little to get to the pots can alter the readings.
When I swap in the new pots, I will also load down the inputs.
Once again I thank you profusely, May your week be filled with happiness 😀
Brilliance, more like: "I try and not make the same mistake twice" There are way too many fun new mistakes to make! Mistakes come from a lack of practical experience and experience comes from mistakes. If you have problems contact me over at the factory site.
I think once you get a pot without a springamathing on the wiper you will get better results. Are you looking at DCO on the module itself or at the output of the X1. Correct place to take the reading is from the module to signal ground.
I think once you get a pot without a springamathing on the wiper you will get better results. Are you looking at DCO on the module itself or at the output of the X1. Correct place to take the reading is from the module to signal ground.
Learning from your mistakes shows more intelligence than a lot of people these days 🙂
I'm using the right most rca tag that goes to the main board.
Er ok, yes I admit I was using the designated test points on the main board, but Once the new pots are in, I will use the ZVN tabs 🙂
I'm using the right most rca tag that goes to the main board.
Er ok, yes I admit I was using the designated test points on the main board, but Once the new pots are in, I will use the ZVN tabs 🙂