1481/Repairs

From TekWiki
Revision as of 03:16, 9 February 2025 by JohnP (talk | contribs) (Created page with "1481R Vertical Scan fault whereby v scan is crushed as position is moved up. Corrected by replacing Q1617 (used to hand 2N2891 to replace 151-044600) 1481C No video, just horizontal line Noted that many semiconductors on vid/vscan board are in sockets (presumably for easy selection on test). By wiggling these socketed components in their sockets, video was restored.")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

1481R Vertical Scan fault whereby v scan is crushed as position is moved up. Corrected by replacing Q1617 (used to hand 2N2891 to replace 151-044600) 1481C No video, just horizontal line Noted that many semiconductors on vid/vscan board are in sockets (presumably for easy selection on test). By wiggling these socketed components in their sockets, video was restored.