Hi,
I checked the forums for a solution and went through all the suggested solutions to no avail, (still need to check the horizontal pot).
Here's the rundown of the current situation.
When I got the game, the monitor (20EZ) was dead. I performed a completed cap job and also replaced the HVT.
When I fired it up, I had a display but the B+ was at 114v. The pot was glued so I shut it down and cleaned it up. Then when I powered it back up, the voltage jumped right up and could not be controlled by the pot. Tested the pot and one leg was open so replaced the pot with a new one.
Then tried again. Voltage shot right up and still could no be controlled by the new pot.
Ordered (from Buffett), received and installed a new IC601 and tried again. Voltage shot right up!
Even though TR901 tested good, I replaced that and tried again. Voltage shot right up!
Checked for cold solder / cracked traces and none found.
I took a reading at the base of TR901 and received 163v, I do not know what that is supposed to be but it seems to be high.
Can anyone tell me what that reading should be (base of TR901)?
Any ideas of how to proceed / what to check next
Thanks
Jeff
I checked the forums for a solution and went through all the suggested solutions to no avail, (still need to check the horizontal pot).
Here's the rundown of the current situation.
When I got the game, the monitor (20EZ) was dead. I performed a completed cap job and also replaced the HVT.
When I fired it up, I had a display but the B+ was at 114v. The pot was glued so I shut it down and cleaned it up. Then when I powered it back up, the voltage jumped right up and could not be controlled by the pot. Tested the pot and one leg was open so replaced the pot with a new one.
Then tried again. Voltage shot right up and still could no be controlled by the new pot.
Ordered (from Buffett), received and installed a new IC601 and tried again. Voltage shot right up!
Even though TR901 tested good, I replaced that and tried again. Voltage shot right up!
Checked for cold solder / cracked traces and none found.
I took a reading at the base of TR901 and received 163v, I do not know what that is supposed to be but it seems to be high.
Can anyone tell me what that reading should be (base of TR901)?
Any ideas of how to proceed / what to check next
Thanks
Jeff


