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IBANEZ SR1000 VERY LOW OUTPUT

Makatak

Makatak

Apr 13, 2002
780
382
58
New Zealand
#1
I have a 1991 Ibanez SR1000 , the one with the EMG IBZ-USA P-J style pups and it has next to no output , im talking hell-low . Tried new battery , it also has a passive bypass switch which only makes it marginally louder , all cables + amp are good confirmed by trying other basses .
Does anybody have any experience with this model doing this , im thinking output jack ?? , i know the pups are passive or could they be fried ?? , maybe vol pot ?? . Any suggestions appreciated . I just want to check the basics before its guitar tech time [ he lives miles away !]
 
#2
The pickups aren't EMGs, they're DiMarzios. Also, the switch isn't a bypass, it's a depth switch.

PowerCurve1b.jpg
 
#3
danomite64 said:
The pickups aren't EMGs, they're DiMarzios. Also, the switch isn't a bypass, it's a depth switch.

PowerCurve1b.jpg
Click to expand...

Yeah , i remembered after I posted the thread the were DiMarzios . Always thought the 3 way toggle was 2 way depth and passive ie. in the 3rd " all the way down " or " off " position , the parametric is bypassed and has no affect [ on my 1989 SR1100e anyway ] . Anyway cheers for that , it was just a cheapie I bought for a rainy day project to restore . Damn good basses , had my 1100e for 19 years !
P.S Nice catalogue shot !
 
#6
From what I've read the pre-amp was using a polarized capacitor, which was switched around the wrong way.
Look for +/- marks on capacitors on yours:
[Invalid or Expired Link Removed]
If it's non-polarized it might have NP printed on it.
In that case the direction doesn't matter.

other non-polarized caps:
Invalid Link Removed
 
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#7
Killed_by_Death said:
From what I've read the pre-amp was using a polarized capacitor, which was switched around the wrong way.
Look for +/- marks on capacitors on yours:
[Invalid or Expired Link Removed]
If it's non-polarized it might have NP printed on it.
In that case the direction doesn't matter.

other non-polarized caps:
Invalid Link Removed
Click to expand...
Thank you very much. I will later take ritalin and try to understand exactly what you said ( no joke)
 
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#13
Hi guys, after 30 years I decided to go back to playing an Ibanez SR1000E made in japan in 1989, bought by a private user in Italy. As soon as I plugged in I noticed an incredibly low volume, even lower than the volume of a Fender Jazz Passive. I searched the web for testimonials on this possible problem and found the topic covered here. I saw that the problem is solved, it seems to me @Makatak. I ask if it is possible to have more specifics on how the problem was solved. Thank you so much
 
#14
GreyBass73 said:
Hi guys, after 30 years I decided to go back to playing an Ibanez SR1000E made in japan in 1989, bought by a private user in Italy. As soon as I plugged in I noticed an incredibly low volume, even lower than the volume of a Fender Jazz Passive. I searched the web for testimonials on this possible problem and found the topic covered here. I saw that the problem is solved, it seems to me @Makatak. I ask if it is possible to have more specifics on how the problem was solved. Thank you so much
Click to expand...

Hi just got back on talkbass, did you get your bass sorted ? I've just pulled the trigger on another 1991 SR1000, same problem low output even though it sounds fantastic. My guitar tech said the last one had an output capacitor around the wrong way, ,apparently there was a batch of them. This one should be the same so will be the same fix.
 
#15
Makatak said:
Hi just got back on talkbass, did you get your bass sorted ? I've just pulled the trigger on another 1991 SR1000, same problem low output even though it sounds fantastic. My guitar tech said the last one had an output capacitor around the wrong way, ,apparently there was a batch of them. This one should be the same so will be the same fix.
Click to expand...
Would I be able to gst a photo of the wiring for the depth switch? Need a little help with mine
Thanks
 

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