B-side C4S board issue at voltage check [resolved]

Loquah · 7800

0 Members and 1 Guest are viewing this topic.

Offline Bourney

  • Jr. Member
  • **
    • Posts: 28
Reply #30 on: January 10, 2023, 07:40:09 PM
I’m following along from home and keen to hear how the mystery is solved.

It will be a well travelled amp by the time it returns to you.  :)



Offline Bourney

  • Jr. Member
  • **
    • Posts: 28
Reply #31 on: April 19, 2023, 12:47:57 PM
Has the mystery been solved? Does the Crack-a-two-a live?



Offline Paul Birkeland

  • Global Moderator
  • Hero Member
  • *****
    • Posts: 19507
Reply #32 on: April 19, 2023, 04:08:24 PM
I found a large solder blob had migrated through one of the C4S PC boards and up against the body of an LED, which destroyed the LED itself.  I replaced the two LEDs on that side of that particular PC board and that was all that was required to repair this C2A.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man