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DOD is dead! (FX90 Delay)

#1 User is offline   Hawkesman 

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Posted 16 March 2017 - 06:22 PM

Was just given one of these, so I took it apart to see what's in it and it has an MN3005, so I figured it was worth a try. However it is passing no signal (with effect either on or off). I looked for obvious faults, like disconnected wires from the in/out jack sockets, but all seems OK there. Not much to go on, I know, but any suggestions? Thanks.
Guitars:
Gibson Explorer
Gibson SG Special
Gibson Firebird V
Ibanez Destroyer II DT50 (1981 - owned from new)
Aria Pro II XRB Bass

Amps:
Marshall JCM 800 2204 (1982 - owned from new)
Marshall JCM 2000 DSL 50
H|H VS Bassamp

Cabs:
Marshall '74 2045
Marshall '75 2045
Marshall '75 1982A
Marshall '79 1982A
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#2 User is offline   Dub-T-123 

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Posted 16 March 2017 - 06:39 PM

The most common thing to break with DOD is the footswitch. Since the battery door is usually missing, it's not unusual for a wire from the battery clip to break.

Usually if the footswitch is broken, it will still pass signal, but the switch won't work. Are you getting the LED lighting up? What are you powering it with?

Maybe posting a photo could help like it did with the DM-2. Even if you don't get it working you could probably build another delay with the MN3005 which is pretty cool. I got a broken DOD pedal just for the MN3005 before
''/\_/\
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#3 User is offline   Hawkesman 

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Posted 16 March 2017 - 08:10 PM

Hi Dub. Thanks for chiming in. I hoped you would!

I have the battery door, although the plastic retaining clip has broken off. A bit of tape will sort that though!

I'm powering it with a 9V battery, and the LED lights up OK.

I'll post some pics tomorrow (it's 2am here!), but unlike last time there's nothing obviously missing.

H.
Guitars:
Gibson Explorer
Gibson SG Special
Gibson Firebird V
Ibanez Destroyer II DT50 (1981 - owned from new)
Aria Pro II XRB Bass

Amps:
Marshall JCM 800 2204 (1982 - owned from new)
Marshall JCM 2000 DSL 50
H|H VS Bassamp

Cabs:
Marshall '74 2045
Marshall '75 2045
Marshall '75 1982A
Marshall '79 1982A
0

#4 User is offline   Hawkesman 

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Posted 17 March 2017 - 10:53 AM

It's now working! I noticed a very slight crackle through the speaker as I plugged into the input side of the pedal, so obviously something was getting through. So I cleaned the jack sockets which helped a lot, but contact was still a bit intermittent. I took both sockets out and looked inside and found that in both of them the +ive contact was bent and mangled. So, I straightened them out (which was bloody fiddly to do), and cleaned the pots while I was at it (they were all a bit scratchy), and now it works perfectly. The case was absolutely covered in dirt and grime too, so I cleaned it and it came up a treat. It only came with one knob, so I raided my parts box for some old HH amp ones and they fitted fine, and have grey tops just like the originals.

Sounds a lot like my DM-2, but I guess that the MN3005 has a lot to do with that.

Cheers,

H.
Guitars:
Gibson Explorer
Gibson SG Special
Gibson Firebird V
Ibanez Destroyer II DT50 (1981 - owned from new)
Aria Pro II XRB Bass

Amps:
Marshall JCM 800 2204 (1982 - owned from new)
Marshall JCM 2000 DSL 50
H|H VS Bassamp

Cabs:
Marshall '74 2045
Marshall '75 2045
Marshall '75 1982A
Marshall '79 1982A
0

#5 User is offline   Hawkesman 

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Posted 17 March 2017 - 10:57 AM

Btw, before I fixed it I took some pics, so I thought I might as well post them in case anyone's interested...

Attached thumbnail(s)

  • Attached Image: Inside 1 Small.jpg
  • Attached Image: Inside 2 Small.jpg
  • Attached Image: DOD Small.jpg

Guitars:
Gibson Explorer
Gibson SG Special
Gibson Firebird V
Ibanez Destroyer II DT50 (1981 - owned from new)
Aria Pro II XRB Bass

Amps:
Marshall JCM 800 2204 (1982 - owned from new)
Marshall JCM 2000 DSL 50
H|H VS Bassamp

Cabs:
Marshall '74 2045
Marshall '75 2045
Marshall '75 1982A
Marshall '79 1982A
0

#6 User is offline   Hawkesman 

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  • Posts: 139
  • Joined: 02-February 14
  • LocationUK

Posted 18 March 2017 - 03:19 PM

Been using it today - great pedal! It really does sound like the DM-2, so it might be a cheaper option for others not wanting to pay the silly prices being asked for the Boss's at the moment.
Guitars:
Gibson Explorer
Gibson SG Special
Gibson Firebird V
Ibanez Destroyer II DT50 (1981 - owned from new)
Aria Pro II XRB Bass

Amps:
Marshall JCM 800 2204 (1982 - owned from new)
Marshall JCM 2000 DSL 50
H|H VS Bassamp

Cabs:
Marshall '74 2045
Marshall '75 2045
Marshall '75 1982A
Marshall '79 1982A
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