dod 490phaser

[vicelord]

Hy there i just recived a dod 490paser and it doesent work....
I replace the battery cheched the cables...still nothing....
i opened it and doesnt look like somthing is burned...
What can i do please help
Regards

 

[Optical]

post a pic of the circuit board if you can, we might be able to suss out what burned and why from there..

 

[vicelord]

An externally hosted image should be here but it was not working when we last tested it.

face

An externally hosted image should be here but it was not working when we last tested it.

back

i thinck they are misswiered but dont know for shure
Regards

 

[Wavebourn]

Looks like one red wire is not soldered. Does it go from the battery? And looks like it has to be soldered right near the corner of the PCB.

 

[vicelord]

i know that it brocked when i putted back the circuit in the box...
Even with that wire right conected it stell doesnt work

 

[Wavebourn]

i know that it brocked when i putted back the circuit in the box...
Even with that wire right conected it stell doesnt work

You need a voltmeter to go a little bit further.

Solder the wire back, connect the battery, insert in-out jacks, and trace the power voltage following wires from the battery to the board. Check if you connected properly input and output jacks.

Power switch in pedals very often is located inside of one of jack sockets, so when you connect your pedal, it is powered on; when you disconnect, it is off.

Check if power (9V) goes from the barrety to the board, a first.

 

[vicelord]

i measured...
i puted the red wire from the voltmeter to the hot wire on the board it shoed me 3v....
but when i putted the both wires from the voltmeter on there places it shoed me 0...

dont know if you understand
Regards

 

[Wavebourn]

i measured...
i puted the red wire from the voltmeter to the hot wire on the board it shoed me 3v....
but when i putted the both wires from the voltmeter on there places it shoed me 0...

dont know if you understand
Regards

Try a new battery, it must be 9V. Also, check if a power switch "supposedly on one of jack sockets) is on when you plug your guitar and amp jacks.

 

[vicelord]

the battery i just recharged...

i dont get any sound at all from this box

 

[Wavebourn]

the battery i just recharged...

i dont get any sound at all from this box

Did you check voltages after recharging your battery?

If the voltage drops down to the 3 volt either your battery is dead, or you must see some smoke going from your PCB.

 

[anatech]

Hi vicelord,
Two other things to check.
Often, one jack is used as a switch for power also. Check that the switch isn't oxidized.

9V battery snap connectors often go bad a the snap connector, or the wire just as it comes out.

-Chris

 

[vicelord]

thx anatech
i tessted the pedal with jacks inserted in IN and in OUT but id doesnt say anything
although the switch wasan't working properly so it will be replaced...
i tried by bypassing the switch still no sound...dont know what to do....

i still think the wiering is bad...

if someone wouns one of thoes please put a picture of the wires

i am not very good at schematics but i will design one in eagle or something to shou the actual wiering

Regards

later edit here is the picture
sorry but dont have skils in building schematics

 

[vicelord]

Hy again....
i recived another guitar efect: Sound JS Heavy metal HM-5.....
i conected the battery and its coming somthing out of it but not from the guitar...
What can i do??

can the imput jack be brocken??
what should i replace before starting to rebuild??

ps some one knows more about the dod phasor...
i want at least one efect working because i have none of thoes in my gear/

Regards

 

[anatech]

Hi vicelord,
The wiring looks wrong. They normally "make" the ground circuit when you plu a jack in. They could switch the positive as well. I haven't seen it done that way.

Recheck your wiring please.

-Chris

 

[vicelord]

this is how it is done on my phasor....

what way should i redone it???

 

[anatech]

Hi vicelord,
You shouldn't touch it without a schematic or another one to compare to. What you drew doesn't make any sense to me, but it could be different. I don't want you to possibly create another fault.

-Chris

 

[vicelord]

i am not good at schematics but i draw what i saw...

if anyone has one of thease please help

regards

 

[anatech]

If someone can take a picture of a like unit, it would really help!

-Chris

 

[vicelord]

http://www.digimart.net/images/64/DS00205939_3.jpg

i found this browsing the net but i dont think its worth anything

 

[anatech]

Hi vicelord,
It does give you the sequence of wire colours at the board end. That's as long as yours was wired the same. 😉

I am hoping another mamber can help out here .......

-Chris