its this IC ok?

[eduardo_gj1]

Hello, I hope (GENIUS can help me as in other opportunities), I have an Electro Harmonix Deluxe Memory Man this model:

Electro-Harmonix Deluxe Memory Man 1100-TT Analog Delay Pedal w/ Tap Tempo | Reverb Deutschland

The Electro-Harmonix Deluxe Memory Man 1100-TT takes the platform of what is probably the most widely used analog delay of all time and tacks on modern features like tap tempo, expression pedal control, and an effects loop.

reverb.com

I bought it defective knowing that it could or could not repair it, at first sight the pedal turns on, and it gives a bypass signal, when it is turned on it works but without delay, when I adjust the blend potentiometer when it is taken halfway, the bypass signal is no longer heard , I have noticed that use 4 Mitsubishi MN3005 chips, I also send you a link of the exact model: https://www.donberg.ie/descript/m/mn_3005.htm

when I take out the 4 chips I test them with the multimeter in diode mode, and I notice that 3 of the chips give me equal measure on all the legs, but one of them gives me the same measure on all the legs except one of them that give 0

here I attach the pinout the IC
https://www.google.com/search?clien..._l=img.3.0.35i39j0i19j0i7i30i19.225490.228267. .229767 ... 0.0..0.101.202.0j2 ...... 0 .... 1..gws-wiz-img.vHVjjCft_zE # imgrc = t67YUXF5svStcM:


the leg that does not give any measure is the number 2 = CP2,

After all this to write my question is: is the IC damaged?

 

[rjenkinsgb]

It does sound like that IC has failed.

 

[eduardo_gj1]

well, the big problem its this IC Mitsubishi MN3005 its really expensive, can i change for this one Xvive MN3005? and use 3 Mitsubishi and 1 Xvive without sound problem?

 

[rjenkinsgb]

can i change for this one Xvive MN3005?

From what I can see, that part is a direct replacement for the older versions.
It should work just the same.

 

[eduardo_gj1]

thanks for your help, i already fix the problem with the Xvive MN3005 to rebias the pedal