mrbill2084
Well-known member
Problem with 2 wells 25k7193 monitors: wells chassis & zenith chassis
I recently picked up two games. One has a wells chassis and the other the zenith. I have recapped both. Both width coils look good.
wells chassis: works, but picture is about 20% too narrow with width ferrite pulled out to max. Putting ferrite in middle makes the image more narrow.
zenith chassis: works but picture displays about 20% too wide with ferrite in middle(image is off the screen).
I was thinking maybe the operator swapped chassis. I don't think its likely as the tray serial number on the zenith monitor matches the one on the chassis. Plus the ground wire from the neck to the frame had never been cut. Zeinth also has a monitor remote control board.
Wells chassis does not match tray serial number and ground wire was cut before. Wells chassis does not have a remote board(but I see to screw holes were it looks like the remote board was probably mounted). So its likely its not the original chassis for this monitor.
I metered and took down the model numbers of both yokes:
wells chassis monitor:
yoke wires meter 7.3 and 1.9
yoke numbers are:
912613
EIA 343
DE 95-53
Zenith chassis monitor:
yoke wires meter 10 and 1.6
yoke numbers are
9A2911-001
9014T
I am wondering if I could swap the 2 chassis and solve both of the problems..
I recently picked up two games. One has a wells chassis and the other the zenith. I have recapped both. Both width coils look good.
wells chassis: works, but picture is about 20% too narrow with width ferrite pulled out to max. Putting ferrite in middle makes the image more narrow.
zenith chassis: works but picture displays about 20% too wide with ferrite in middle(image is off the screen).
I was thinking maybe the operator swapped chassis. I don't think its likely as the tray serial number on the zenith monitor matches the one on the chassis. Plus the ground wire from the neck to the frame had never been cut. Zeinth also has a monitor remote control board.
Wells chassis does not match tray serial number and ground wire was cut before. Wells chassis does not have a remote board(but I see to screw holes were it looks like the remote board was probably mounted). So its likely its not the original chassis for this monitor.
I metered and took down the model numbers of both yokes:
wells chassis monitor:
yoke wires meter 7.3 and 1.9
yoke numbers are:
912613
EIA 343
DE 95-53
Zenith chassis monitor:
yoke wires meter 10 and 1.6
yoke numbers are
9A2911-001
9014T
I am wondering if I could swap the 2 chassis and solve both of the problems..
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