1481/Repairs: Difference between revisions
Jump to navigation
Jump to search
(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.") |
No edit summary |
||
| Line 1: | Line 1: | ||
1481R | 1481R - | ||
Vertical Scan fault whereby v scan is crushed as position is moved up. | 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). | ||
Corrected by replacing Q1617 (used to hand 2N2891 to replace 151-044600) | 1481C - | ||
1481C | |||
No video, just horizontal line | No video, just horizontal line | ||
Noted that many semiconductors on vid/vscan board are in sockets (presumably for easy selection on test). | 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. | By wiggling these socketed components in their sockets, video was restored. | ||
Revision as of 03:18, 9 February 2025
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.