Ibanez PT707 Phase Tone II repair help

[BlindtoFaith]

Hey guys. Just got this as a bday gift and it does not generate sound! It powers up but no phaseing at all. Hahaha. No bypass signal either. What could it be???

viewtopic.php?f=149&t=21808

OP with pics. I hope is something I can fix but if not would anyone be down to take a crack at it?!?!?!

[tuffteef]

if theres no bypass check out the switch

[BlindtoFaith]

No bypass at all. Take a look at the pic there. The top left lug of the switch has solder on it but no wire. I cannot find any loose wires or open holes?

[tuffteef]

where abouts are the wires going to on the switch like how many to the board and how many to the jacks so on so forth

im gonna take a wild guess that an output wire is missing on the switch?

[BlindtoFaith]

There is a pic of the switch in th eop up top.

[tuffteef]

There is a pic of the switch in th eop up top.

yaha ive looked but cant tell where they go to from there

[BlindtoFaith]

I will take better pics soon!

[BlindtoFaith]

Going to eatyourguitar for a little TLC!

[eatyourguitar]

I'll take pics. I always do.

[BlindtoFaith]

Sweet! Looking forward to them!

[eatyourguitar]

phasetoneII.JPG (105.89 KiB) Viewed 4409 times

phasetoneII2.JPG (82.04 KiB) Viewed 4409 times

this pedal has a long and painful story of not wanting to work. somehow someone worked on it and messed it up. all the sloppy work inside made me second guess what was original and what was modded. after some careful research and looking over the schematic, I learned that the relay is a factory ibanez part. although the melted plastic and mess of solder means it was probably removed and then re-installed. the power consumption of the relay in bypass was totally unnecessary in my opinion. after finding what I thought was a dead footswitch, I decided to replace the relay + footswitch at the same time. after replacing a dead trimmer and calibrating the photocouple, still nothing. the output jack tip and sleeve were switched. success! I actually calibrated all the trimmers with a tone generator and a circuit probe before I had the output jack working. tested with the guitar and it is still in the sweetspot judging by ear. not sure why but the bypass is not %100 quiet like I would like it. this is probably just how it is from the factory. like most vintage phasers, it is buffered bypass. also swapped the factory weirdo socket for something more practical while still retaining the factory battery option.

[eatyourguitar]

oh and I desoldered Q1 and put it in a socket. I thought Q1 was dead but it is not. TL072 was tested and does work if you need to swap. the original part is rare as shit.

[BlindtoFaith]

Dude....I cannot tell you how stoked I am! Thank you sooooo much!

[culturejam]

Nice work!

You should post some pics at FSB. A lot of folks will be interested to see your work.

[eatyourguitar]

I also want to send a big thanks to Dirk Hendrik for documenting the history of ibanez pedals as well as drawing excellent schematics. his site is http://www.dirk-hendrik.com/ibanez.html scroll down for the ibanez phase tone II (also sold as the PT707). Blind has the Phase Tone II. the schematic is the same. I will crosspost on FSB when I have time. the only problem with Dirk's schematic is that the relay is not labeled as a relay. its just labeled as switch 1B or something.