Hello Everyone .
I have preamp Pass Labs X1 , now , preamp no output sound , I switch Input 1 or every switch input no sound relay click . I think uCom have problem .
Everyone have schematic or guide me replacement and repair .
Thank Everyone very much .
I have preamp Pass Labs X1 , now , preamp no output sound , I switch Input 1 or every switch input no sound relay click . I think uCom have problem .
Everyone have schematic or guide me replacement and repair .
Thank Everyone very much .
I am sorry to tell you that I never saw a X1 service manual in the web or personally.
:-(
May be you email to Nelson Pass personally.
:-(
May be you email to Nelson Pass personally.
Thank Mr Nelson Pass . I want check careful before contact to customer service Pass Labs .
Best Reagard .
Dear Mr Nelson Pass and Everyone
I have check :
- Power supply : +/- 40 Vdc ===> OK
- UGS modules test points marked as + & - : +/- 32 Vdc ====> OK
- Regulators : +/- 15 Vdc and 5 Vdc ===> OK
- Front Display ====> OK
- 5 Vdc at pin 40 IC PROM ===> OK
May be I need replace ICs Latches
I have check :
- Power supply : +/- 40 Vdc ===> OK
- UGS modules test points marked as + & - : +/- 32 Vdc ====> OK
- Regulators : +/- 15 Vdc and 5 Vdc ===> OK
- Front Display ====> OK
- 5 Vdc at pin 40 IC PROM ===> OK
May be I need replace ICs Latches
Today I very glad statement : Pass Labs Preamp X1 are working well now . I have buy ICs Latches replacement for old ICs Latches and select input 1 to input 4 working fine , connect signal input and have output signal , preamp X1 have very well sound .
Thank you everyone and Mr Nelson Pass . I have contact to Mr Kente and receive schematic manual from service at Pass Labs , and help me repair Preamp X1 very quickly
Best Regards !
Thank you everyone and Mr Nelson Pass . I have contact to Mr Kente and receive schematic manual from service at Pass Labs , and help me repair Preamp X1 very quickly
Best Regards !
Thank you everyone and Mr Nelson Pass . I have contact to Mr Kente and receive schematic manual from service at Pass Labs , and help me repair Preamp X1 very quickly
Best Regards ![/QUOTE]
Has there ever been a service manual for the X1?
Can i get a service manual for the X1?
Best Regards ![/QUOTE]
Has there ever been a service manual for the X1?
Can i get a service manual for the X1?
Reading the thread......
I know it's a massive thread, and it will take absolutely minutes to wade through the 8 replies.
But if you take the time, both of your questions have been answered.
I know it's a massive thread, and it will take absolutely minutes to wade through the 8 replies.
But if you take the time, both of your questions have been answered.
"Replace latches" it's not entirely clear which latches need to be replaced, what they are and where they are on the board. Alex.
Latch failures are usually related to not having the power cable connection made properly before plugging the unit in. The latches on the front board can then fail.
These drive all the relays and volume control circuits.
These drive all the relays and volume control circuits.
