Belcat mods

[944cabby]

I've just bought a rather cheap analogue belcat chr-504 chorus pedal to have a play around with.It has simple controls - just rate and depth.
Obviously it sounds quite basic but it is a little noisy, almost like a background hiss (i had a exh small clone some time back which sounded similarly noisy actually).
Can anyone suggest any basic mods i can do?
I'm thinking increase the value of the caps first off - how about 10n100 or 33n100?

[anchovie]

Which caps?

[944cabby]

Well, just took the pcb out - i can only see one cap but sods law there's no value printed on it!

[~arph]

There are probably more caps, only a bit smaller and no values too 

[anchovie]

There's no point blindly changing a cap value if you don't know what the cap does. What are the two through-hole ICs?

[Scruffie]

There's no point blindly changing a cap value if you don't know what the cap does. What are the two through-hole ICs?

They'll be the BL3207 and BL3102 considering the design.
CE-2 Based at a Guess.

[944cabby]

There's no point blindly changing a cap value if you don't know what the cap does. What are the two through-hole ICs?

They'll be the BL3207 and BL3102 considering the design.
CE-2 Based at a Guess.

I think they're BL3020 and BL3070 - what could these be upgraded to?

[Scruffie]

There's no point blindly changing a cap value if you don't know what the cap does. What are the two through-hole ICs?

They'll be the BL3207 and BL3102 considering the design.
CE-2 Based at a Guess.

Of course it's not CE-2 Based... CE-3 even.

There's no point blindly changing a cap value if you don't know what the cap does. What are the two through-hole ICs?

They'll be the BL3207 and BL3102 considering the design.
CE-2 Based at a Guess.

I think they're BL3020 and BL3070 - what could these be upgraded to?

I don't think they are BL3020 or 3070... it'd make much more sense if they were what I said... I've never heard of those chips and google didn't turn up datasheets, but perhaps i'm wrong.

No in answer to your question though, if you want a different chorus sound, probably best to just buy a new chorus than trying to mess with a SMD Design that you don't have the schematic for.

If you just want to add mods to it for the sake of it, find the LFO Cap and change its value higher or lower and find the Wet & Dry Mix Resistor and lift the Dry for Vibrato, you'll have to trace through an SMD Pedal though.