WG6100 capkit didn't fix problem

Reeet-Mon

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I installed a capkit from Bob Roberts and my monitor still has the straight line in the middle of the screen from the left to ride side of the screen.

Is it possible my actual Tempest PCB may be at fault?
 
Is it possible your boardset is at fault? Yes.
Collapse is "usually" a tell tale sign of a surface mount transistor (or two) being bad.
Just because you may have installed new ones doesn;t automatically make them good. Use your DMM and put it on continuity test. Ground to ground and positive to the top of the surface mount transisitor. If she beeps she's toast. Most people don't replace the mica insulators and if you have a cracked one you grounded out the transistor/s and blew it/them.
 
As the other two indicated, there are two main causes for this. Bad transistors or cold solder joints (usually on the header pins for the transistor connections.

You should reflow the solder joints on the headers and any other joints that look suspect. Especially do J700 since that is the connection for the X deflection transistors and you have what appears to be deflection collapse on the X axis. I know it seems backwards, but the monitor is rotated vertically on tempest.

Also, you can easily test the transistors with a digital multi-meter on the Diode setting. Unplug P700 (cable connector) from J700 (header on deflection PCB) and test on P700 pin side with the following tests and verify the results against the ones listed. Any results that are out of the range listed likely indicate a bad transistor that needs to be replaced.

Good Luck,

-VJ

NPN (2N3716) Test on connector at Pin positions 1, 3, 4 of P100, P600, P700
===========================================================================

Test #1
-------------------
Red -> Pin 3
Black -> Pin 4

Result: .45v to .9v

Test #2
-------------------
Red -> Pin 3
Black -> Pin 1

Result: .45v to .9v

Test #3
-------------------
Red -> Pin 4
Black -> Pin 3

Result: Open

Test #4
-------------------
Red -> Pin 1
Black -> Pin 3

Result: Open

Test #5
-------------------
Red -> Pin 1
Black -> Pin 4

Result: Open

Test #6
-------------------
Red -> Pin 4
Black -> Pin 1

Result: Open



PNP (2N3792) Test on connector at Pin positions 5, 6, 7 of P100, P600, P700
===========================================================================

Test #1
-------------------
Red -> Pin 6
Black -> Pin 5

Result: Open

Test #2
-------------------
Red -> Pin 6
Black -> Pin 7

Result: Open

Test #3
-------------------
Red -> Pin 5
Black -> Pin 6

Result: .45v to .9v

Test #4
-------------------
Red -> Pin 7
Black -> Pin 6

Result: .45v to .9v

Test #5
-------------------
Red -> Pin 7
Black -> Pin 5

Result: Open

Test #6
-------------------
Red -> Pin 5
Black -> Pin 7

Result: Open
 
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