TheBasement
Well-known member
I have a G07 monitor issue. During a gameday I noticed the monitor seemed to get static and then eventually no picture. It was playing blind. I turned the game off for 20 minutes and turned it back on again. The game came on for a period of time then the same thing.
The following is what I tried so far.
1. Replaced big blue
2. Cleaned the fuse holders
2. Did a full cap kit on the monitor. Even replaced the caps under the shield and put the shield back on.
3. Checked the resistors R314, R317, R303, R306. One of them was a 4.7k, I replaced it with the proper 390 Ohm.
4. Reflowed the connectors J1-J3 and E1-E6 (sync connectors)
5. Tried adjusting all the pots with no change.
6. Checked voltage off the game board and it read good. Even adjusted it from 5v to 5.15v with no change.
7. Measured B+ voltage and it measure 119.6V (120V)
8. Replaced fusible resistor FR401
9. Replaced X401 and X402 transistors
10. Replaced IC 501
10. Tried in another cab to eliminate game board, power supply and big blue.
This is a vertical game (DigDug) and with the monitor on its side it appears to have random staticy horizontal lines with very slight up/down jiggle.
I have tried to take a video of the issue with the monitor on its side. The video is very quick, but you can see the static if you bump the video to 480P. The single camera scan line is not part of the issue.
http://www.youtube.com/watch?v=fyUj24uPlDM
The picture and colors also look good except for the static and picture bounce.
Any help would be appreciated.
The following is what I tried so far.
1. Replaced big blue
2. Cleaned the fuse holders
2. Did a full cap kit on the monitor. Even replaced the caps under the shield and put the shield back on.
3. Checked the resistors R314, R317, R303, R306. One of them was a 4.7k, I replaced it with the proper 390 Ohm.
4. Reflowed the connectors J1-J3 and E1-E6 (sync connectors)
5. Tried adjusting all the pots with no change.
6. Checked voltage off the game board and it read good. Even adjusted it from 5v to 5.15v with no change.
7. Measured B+ voltage and it measure 119.6V (120V)
8. Replaced fusible resistor FR401
9. Replaced X401 and X402 transistors
10. Replaced IC 501
10. Tried in another cab to eliminate game board, power supply and big blue.
This is a vertical game (DigDug) and with the monitor on its side it appears to have random staticy horizontal lines with very slight up/down jiggle.
I have tried to take a video of the issue with the monitor on its side. The video is very quick, but you can see the static if you bump the video to 480P. The single camera scan line is not part of the issue.
http://www.youtube.com/watch?v=fyUj24uPlDM
The picture and colors also look good except for the static and picture bounce.
Any help would be appreciated.
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