User contributions for JohnP

9 February 2025

• 03:3703:37, 9 February 2025 diff hist +375‎ N 1485/Repairs ‎ 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."
• 03:3603:36, 9 February 2025 diff hist +375‎ N 1482/Repairs ‎ 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."
• 03:3603:36, 9 February 2025 diff hist +375‎ N 1480/Repairs ‎ 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."
• 03:3403:34, 9 February 2025 diff hist +1‎ 1481/Repairs ‎No edit summary current
• 03:3303:33, 9 February 2025 diff hist +1‎ 1481/Repairs ‎No edit summary
• 03:3003:30, 9 February 2025 diff hist +16‎ 1485 ‎No edit summary current
• 03:2903:29, 9 February 2025 diff hist +16‎ 1482 ‎No edit summary current
• 03:2803:28, 9 February 2025 diff hist +16‎ 1481 ‎No edit summary current
• 03:2803:28, 9 February 2025 diff hist +16‎ 1480 ‎No edit summary
• 03:1903:19, 9 February 2025 diff hist −1‎ 1481/Repairs ‎No edit summary
• 03:1803:18, 9 February 2025 diff hist +7‎ 1481/Repairs ‎No edit summary
• 03:1603:16, 9 February 2025 diff hist +369‎ N 1481/Repairs ‎ 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."
• 02:5902:59, 9 February 2025 diff hist +5‎ 1485 ‎No edit summary
• 02:5902:59, 9 February 2025 diff hist +5‎ 1482 ‎No edit summary
• 02:5802:58, 9 February 2025 diff hist +5‎ 1481 ‎No edit summary
• 02:5702:57, 9 February 2025 diff hist +5‎ 1480 ‎No edit summary
• 02:5602:56, 9 February 2025 diff hist +33‎ 1485 ‎No edit summary
• 02:5502:55, 9 February 2025 diff hist +33‎ 1482 ‎No edit summary
• 02:5502:55, 9 February 2025 diff hist +33‎ 1481 ‎No edit summary
• 02:5402:54, 9 February 2025 diff hist +33‎ 1480 ‎No edit summary
• 02:4902:49, 9 February 2025 diff hist +52‎ 1482 ‎No edit summary
• 02:4902:49, 9 February 2025 diff hist +52‎ 1481 ‎No edit summary
• 02:4802:48, 9 February 2025 diff hist +52‎ m 1480 ‎No edit summary

8 February 2025

• 09:5909:59, 8 February 2025 diff hist +162‎ m File:061-2380-00.pdf ‎ →‎Summary current