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Main => Monitor/Video Forum => Topic started by: arcade1213 on July 16, 2009, 06:06:50 pm

Title: have a wells gardner 9001 problem cap kit volts are lower on new caps
Post by: arcade1213 on July 16, 2009, 06:06:50 pm

have a wells gardner 4901 problem which is that i ordered a cap kit for a 4900 series board and the voltage on some caps are lower on the the new caps and higher on the old caps is this ok also the 4901 board looks slightly different than the 4900 board.

Title: Re: have a wells gardner 9001 problem cap kit volts are lower on new caps
Post by: Kevin Mullins on July 16, 2009, 07:40:20 pm

Compare the questionable caps to what the manual parts list AND schematic says.

I have seen higher voltage caps installed but the manual called for the lower voltage included in cap kits. Go with the manual when in absolute doubt.

http://arcarc.xmission.com/PDF_Monitors/Wells%20Gardner%2019k4901%2019k4906%2019k4951%2019k4956.pdf

Title: Re: have a wells gardner 9001 problem cap kit volts are lower on new caps
Post by: arcade1213 on July 16, 2009, 09:00:33 pm

thanks for the link to the manual that helped alot and i have determined that the voltage on the caps on the board is the right voltage.i guess my question is now where can i find a cap kit for a wells gardner 4901,i could order from mouser but im looking for one already put together.thanks

Title: Re: have a wells gardner 9001 problem cap kit volts are lower on new caps
Post by: arcade1213 on July 17, 2009, 02:31:27 am

any ideas as to my problem, i was always told that you could go up in voltage but never down in voltage and that uf rating has to stay the same this is true right?

Title: Re: have a wells gardner 9001 problem cap kit volts are lower on new caps
Post by: arcade1213 on July 17, 2009, 07:29:02 pm

any ideas as to my question above?
thanks for your time and have a nice day

Title: Re: have a wells gardner 9001 problem cap kit volts are lower on new caps
Post by: Kevin Mullins on July 17, 2009, 07:43:27 pm

Quote from: arcade1213 on July 17, 2009, 02:31:27 am

any ideas as to my problem, i was always told that you could go up in voltage but never down in voltage and that uf rating has to stay the same this is true right?

You are absolutely correct.......

Voltage can be HIGHER, but never lower.

uf rating MUST be an exact match.

Title: Re: have a wells gardner 9001 problem cap kit volts are lower on new caps
Post by: arcade1213 on July 17, 2009, 08:33:55 pm

thanks for your response and help,it helped me alot

Title: Re: have a wells gardner 9001 problem cap kit volts are lower on new caps
Post by: SirPeale on July 18, 2009, 09:34:08 am

This should be a K4900 cap list in its entirety.

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

I have other Mouser cap lists too.