25K5515 cap kit list ?

OK I found this myself:


Zanen Kit #202
Wells-Gardner K4900 and K5500 color monitor

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


BUT, I read somewhere that there is one certain cap that is different and that it will have pretty big impact if you use the wrong one....

Anybody knows which one ?

Any other caps differing ? Or can I order this set ?

Chad, do you have a "hi quality" kit for this already ? ;) Ready to order ! :)
 
C311 is the 10uf for the 25k5515.

I have C201 as a 100uF.
I also have 1 or 2 more caps that aren't listed in your copy of the Zanen list.

The manual has a list of all the caps.
 
C311 is the 10uf for the 25k5515.

I have C201 as a 100uF.

That's weird, I have two chassis here and both have a 1000uF 16V there.
They show much lower capacity though (500/600uF) at the moment so I'll replace them.

I also have 1 or 2 more caps that aren't listed in your copy of the Zanen list.
Yep, I found one across a diode and there is one that has it's own "spot" C306. [EDIT] This turned out to be a tantalum cap, so lets keep it off the list....

Also the little extra PCB on the top has a small cap too.

Will have to continue measuring and exploring tomorrow.
 
Last edited:
That's weird, I have two chassis here and both have a 1000uF 16V there.
They show much lower capacity though (500/600uF) at the moment so I'll replace them.

Interesting. I'll have to see what is on one of the chassis I have here.
 
C306 No diode there, just a cap

Misunderstanding here: There is a cap C306 but there's also a diode named D306 and they piggy-backed a cap over it....more later about the values.

B.t.w. is it just me or is this chassis one big HACK job ?

Loads of wires soldered to components, loads of components soldered on the solder side, components all over the place instead of the PCB....sorry but I'm far from impressed by Wells Gardner's stuff so far...
 
OK for what it's worth here is the list as I found the caps on two Hard Drivin' 25K5515 chassis:

The deviations from the K4900 list I found are confirmed on BOTH chassis and are original caps (all caps are Elna's on both chassis)


C201 1000u 16V (not 100uF as often mentioned !)
C205 470u 16V
C301 330u 50V (not 25V !)
C303 2.2u 50V
C308 2.2u 50V
C310 10u 160V
C311 10u 160V
C313 100u 160V
C315 1u 50V
C351 1u 50V
C352 47u 25V
C354 47u 25V
C506 22u 160V
C507 47u 160V (not 200V but OK...)
C701 1000u 25V
C702 10u 100V (Not 160V or 200V but OK)

C505 560u 200V (that one is probably also on the K4900 but it's never listed because it's big (the filter cap))


So far not too shocking. Now the only extra's I found:

C100 47u 25V (this is on the elevated small pcb on the left of the chassis)
Also there is a cap piggy-backed over D306 @ 1uF 50V

I'll post an updated cap-map tomorrow.
 
Last edited:
Wow I found a very tricky (potential ?) problem on one of the chassis. After replacing all the caps and renewing the mica's and paste under the HOT and voltage regulator, I checked the entire PCB's for bad solderings.

Most of them seemed OK, the obvious "power" resistors had some dull one's so redid those as well as the HOT.

However I found one track completely on the side of the PCB that had a wire bridge on it. I noticed how poor the soldering looked, dull and worse than that. I looked on top and the PCB was pretty black around that small spot of the wire.
I messed around a bit and sure enough the wire broke at the first touch.....

Soldered in a new and thicker wire and fine now...(I hope).

I thought Wells Gardners were built in the US but these have "Made in Japan" stickers on them by the way...

I still can't believe how many hand-made mods this chassis has EVERYWHERE. It must have at least tripled the production time, IMHO it's a total mess !
They should have gone back to the drawing boards and come up with a decent PCB...just MHO.
 
Back
Top Bottom