Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: Alzoo on March 27, 2009, 01:35:47 pm

Title: Wells Gardner Model 19K4914 fix or replace or do nothing?
Post by: Alzoo on March 27, 2009, 01:35:47 pm

Hi Everyone

Bit of a newbie posing a quick question to get steered in the right direction.

I have a original guantlet arcade I bought  a while back and the monitor is burnt in a fair bit, still it works fine, however the refresh rate is wavering / the image is wobbling?  other than that, all other features are fine, no problems..

what would be causing the image wobble or produce this noticeable waver???  Can I fiddle with the controls, perhaps replace the power supply? or be content it is still working after all these years...

many thanks
Alex
 

Title: Re: Wells Gardner Model 19K4914 fix or replace or do nothing?
Post by: qrz on March 27, 2009, 05:01:41 pm

electrolytic capacitors are a common failure in many devices.
if all original components, it is a safe bet that some have changed value.

if ur handy with a soldering iron, replacing caps would be a good place to begin.

capacitor kits seem to be popular here .
post the make/model , and i'm sure someone can provide a kit number/source for you

replacing the crt is the best way to fix phosphor burn
 and to keep the drives down a bit on the new one    ;) 

73 de j

Title: Re: Wells Gardner Model 19K4914 fix or replace or do nothing?
Post by: SirPeale on March 28, 2009, 08:42:33 pm

I /think/ this will work...

http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=77A2F72D7F 

Should be a listing of ALL caps for a K4900.

Title: Re: Wells Gardner Model 19K4914 fix or replace or do nothing?
Post by: Kevin Mullins on March 28, 2009, 10:19:15 pm

Quote from: Peale on March 28, 2009, 08:42:33 pm

Should be a listing of ALL caps for a K4900.

Cap            (uF)        Voltage
-------       -------      -------
C201   1000u   16V
C205   470u   16V
C301   330u   25V
C303   2.2u           50V
C308   2.2u           50V
C310   10u         160V
C311   4.7u         160V
C313   100u      160V
C315   1u           50V
C351   1u           50V
C352   47u           25V
C354   47u           25V
C506   22u         160V
C507   47u         200V
C701   1000u   25V
C702   10u   160V or 200V

** Check for bad solder joints.

Title: Re: Wells Gardner Model 19K4914 fix or replace or do nothing?
Post by: Alzoo on March 31, 2009, 11:29:01 am

Hi,

thanks for that info...  the site works and I will check it out to buy the caps..

There is also this to buy from ebay...
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=250397235817

thanks
Alex