Main > Monitor/Video Forum

WG K4900 bad C702? - Updated

<< < (2/2)

howitzer:
Just a quick update for the archive in case anyone else runs into a similar problem..  I've cleared up most of the issue by replacing the horizontal output transistor.  Everything is back to normal with one exception.  No Red on the screen.  I had this problem intermittently before the horizontal deflection went out, so it may be unrelated (possibly on the game board?).  If anyone has any thoughts, please let me know.

Thanks,
John

Ken Layton:
No red: resolder the video input connector pins. Resolder the transistors and the large resistors on the neckboard.

howitzer:
Dead on my man!  Cold solder joint on the red input pin.

Hell, a month or so ago I had no idea what a cold solder joint was.  Thanks for all your help.  Working like a charm now.

Ken Layton:
Many monitors develop bad solder on the video input connectors.

Glad your monitor is now working. :)

Navigation

[0] Message Index

[*] Previous page