Maybe Suicide? Help with wiring issue (Ibanez SR 1200)

[santucci218]

heres the diagram



Ok. So let me explain. I got a bass in to fix up. A friends. New output jack. Simple enough. Wire it in as seen above....No sound...What the? Hmmf. Whatever. So i flipped the lead and the battery. Sometimes I make mistakes. Nothing. Ok...Wire it back to the way it says and change the battery...Nothing. New cable. New amp...NOTHING! I call the owner. He says the old input jack played. he then unplugged his bass. Put in the new jack and it didnt work. He thought he did it wrong so brought it to me. After all this, I still cant figure the darn thing out! Any other ideas as to what it could be? The only 2 things i noticed, and fixed, were that one of the pickups grounds wasn't connected to the tone pot, so I did that. Also, the wiring diagram says the lead should come from the center volume to the output jack, BUT it was actually wired to come off of leg 3. So the wires on the volume put were backwards...I changed those...no sound.

[line6man]

Try wiring the pickups straight to the jack to see if they work properly. That will determine whether or not the problem lies with the preamp.

[santucci218]

any ideas that dont make me unwire half the circuit? what if i just used gator clips to the output jack from the preexisting solder joints?

Also, i dont think the pickups died randomly. Like I said, he played it, it worked. he took out the output jack and put in the new one. Since then, no sound. I know he didnt change the wires on the volume pot. Maybe I should change them back...

[line6man]

Originally Posted by santucci218

any ideas that dont make me unwire half the circuit? what if i just used gator clips to the output jack from the preexisting solder joints?

Also, i dont think the pickups died randomly. Like I said, he played it, it worked. he took out the output jack and put in the new one. Since then, no sound. I know he didnt change the wires on the volume pot. Maybe I should change them back...

If you try wiring the pickups to the jack with alligator clips while the bass is still wired normally, that's going to cause the preamp to feedback into itself, so that wouldn't be a good idea.

Ideally you would want to go piece by piece until you figure out what's going on, but that does take a lot of resoldering.

Just take the white wire from both pickups and connect it to the tip terminal of the jack.(Remove the connection from the volume pot.) Make sure you're getting sound. That would narrow it down to the preamp.

FWIW, it probably wasn't a good idea that you flipped the battery.

[madmatt]

I knew a guy who commited suicide over a wiring problem...

[santucci218]

OK. took white wire off one pot from the pickup and went to the output....lots of buzzing but nothing. Makes me think i hooked it up wrong.

[line6man]

Originally Posted by santucci218

OK. took white wire off one pot from the pickup and went to the output....lots of buzzing but nothing. Makes me think i hooked it up wrong.

So there is no output from the pickups?

Aside from the fact that you put the battery in backwards, it's quite rare for active pickups to fail.

[Gaetano Paul]

I have the very same bass and the neck pup stopped working yesterday. Did you ever get this fixed?
Do you think regular P/J pups would fit in there?

[azzyrazzy]

Suicide? The bass killed itself? RIP bass.

[Gaetano Paul]

Well I am going in to trouble shoot mine in a few hours, the schematic seems complicated, ancient technology LOL nah its not sooo bad, seems doable.

[lesliegl]

Hi if its any help Ibanez spare parts still list these pick ups as available ..but they are called by their later name as AFR P and J..so if you find the pick up is defective theres the option to get a replacement through Ibanez spare parts in the US

Leslie

[Gaetano Paul]

Thanks everyone, I was able to get it fixed. After all these years the neck pup pot lug came undone. Easy fix, everything is rock solid!