Disclaimer: This information is provided as is. There may be errors in this information. You may use this information only if you agree that Minimalist / Coinop.org, its employees, and noted authors will never be held responsible for any damage, injury, death, mayhem, etc. caused by errors in the information. When working with high voltage, never work alone and always follow safety precautions.

Document Title: [BadMonitorCaps.html (html file)]

<List of Bad Monitor Capacitors and Symptoms

List of Bad Monitor Capacitors and Symptoms

Submitted by RANDY FROMM (YMNP18A@prodigy.com)

Electrohome GO7
C511  47uf 160VDC Causes activation of X-ray protection which in turn 
causes shutdown of horizontal oscillator.  Monitor appears dead.  Power 
supply voltage rises to approx 160 VDC.  May also cause weird black areas 
to appear on the right side or top of the screen.

C905  10uf 250VDC  May cause jittery picture.

C107 10uf 250VDC (on neck board)  Cannot darken screen completely with 
screen control.

C504  1uf 50VDC  Wiggly picture; especially toward the top of the screen.
  Looks as if you should be able to adjust it out with the horizontal 
frequency control but you can't.

C517 100uf 16VDC  Picture keystoned.  Sides not straight.
C518 220uf  16VDC  Picture keystoned.  Sides not straight.

C411 100uf 160VDC  Poor vertical deflection.

Hantarex MTC900
C25  47uf 16vdc  Jailbars
C36  22uf 35VDC  Jailbars
C83  47uf 25VDC  Jailbars

Hantarex MTC9000
C34  22uf 160VDC  May cause shutdown of monitor.  May cause interference 
bands on screen.  Common failure starting now!

Wells-Gardner K4600
C614 33uf 25vdc  Keystoned picture.  Sides not straight.
C311  1000uf 35VDC  Poor vertical deflection (picture doesn't fill 
screen)

Wells-Gardner K4900
C702  10uf 100VDC  Picture bright on the right side and dark on the left 
side.

C313  100uf 160VDC  Poor vertical deflection (picture doesn't fill 
screen)

C507  47uf 160VDC  May cause interference bands on screen.

Nintendo (Sanyo Model 20-EZV)

C407  10uf  160VDC   Causes vertical foldover.  The top part of the 
screen is squished.

C302 1uf   50VDC  Jail bars 
C467 1uf 160VDC Jail bars 
C468 330uf 25VDC Jail bars 
C469 220uf 25VDC  Jail bars 
C471 10uf 160VDC Jail bars 
C472 100uf 160VDC Jail bars 

C459  100uf 16VDC.  Horizontal tearing. Looks as if you should be able to 
adjust it out with the horizontal hold control but you can't. May cause 
multiple images.

C303  10uf   50VDC  Brightness too low.

Matsushita (Pole Position)
C455  100uf 100VDC  Poor vertical deflection.