Low Tide LPG and BBD not working

[DSonthebeat]

Hi guys,
first post here, I bought all the components in 2022 but only in the last week I found time to work on it.
Pedal power up, led ON, signal is passing both in bypass and with the pedal ON, mix knob passes signal on both dry and wet side and it seems to me that the sound gains some really subtle color plus the level between dry and wet is not the same and is affected in both cases by the Volume knob.
I can't hear any modulation at any settings at any turn of the BBD BIAS trim. I tried to take out the BBD and the pedal worked the same which I don't know if it means the chip is busted.
Gate (LPG) setting the trim it goes from flat to lowend bumps and white noise transitions, something is not right, never managed to make the filter stay almost closed even with the LPG knob at minimum.
The 3 possible pitfalls are: vintage MN3207 bought on ebay from cabintech, I used a through hole in socket J201s from Banzai in place of the 2SK208Y, just bought 2 and I don't know if they're good cause I don't know how to test them, third possible issue is the LM258P I bought from ebay.

These are some readings:

MN3207 Vintage Panasonic/Matsushita1024-Stage BBD Delay Line

pin 1 - 0v
2.50
2.77
4.69
5.02
2.48
1.63
1.65

LM258P

pin 1 - 1.07v
2.52
2.5
0
2.78
2.78
8.9

Q1 J201 alternative to 2SK208Y

1 - 5.26
2- 0.78
3 - 0

Q4 J201

1 - 2.07
2 - 0.42
3 - 0v

I tried to experiment with the boost and pad switches for the LPG but the best I accomplished is find those lowend peaks and subsequent noise burst.
Do the J201 and 2SK208Y have different pin layouts maybe?

One more thing, my 220uF capacitor is smaller than all the other build I encountered, it's the purple kemet in photo 4, it's rated 10v, could it be an issue?

 

[DSonthebeat]

Ok, quick update, first of all thanks to the guys at Cabintech for sending me a V3207 in replacement of the MN3207 free of charge, I live in Italy so it wasn't to be taken for granted and I appreciate it.
I swapped the chip and it seems to make a difference, if I crank the LPG I can hear sound passing with 100%wet and I can hear the modulation working for the first time so the BBD is working. The problem is still the LPG, I can't find any setting for it to pass signal properly other than maxed out, if I turn the LPG fully counterclockwise even messing with the gate trimpot or strumming really hard doesn't do a damn thing.
If I crank the LPG clockwise, I pretty much max the gate trimpot and strum really hard then I get sound but it gates.

Now this is beyond strange, with MIX at 0 (fully counterclockwise) if I max the LPG the sound sometimes (seems sensitive to low notes more than anything) gated on the attack, like it's quickly opening the filter then it quickly swells and the tail of the chord or note passes regularly unlike when I have the MIX at 100% which gates the tails as well. It does that when the VOL pot is pretty high otherwise sounds pretty transparent.
Engaging the little boost dipswitch on the board helped but still no sound if LPG is not maxed out and the tail of the notes are abruptly interrupted.

I'm close to having a functioning pedal but I really don't understand what's still wrong with this thing