Ibanez - FL-9 Flanger  [schematic]

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analogguru
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Post by analogguru »

Here some guts of the Ibanez FL9 Flanger:
Image
Image
Image
Image

and here is the factory schematic:
http://www.mojotronics.com/images/FL9.pdf

analogguru
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FL9(2).pdf
Ibanez - FL-9 Flanger schematic
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There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.

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Post by puppiesonacid »

cool, thanks ag. the FL-9 is one of my favorite flangers aside from the mxr and the FOXROX TZF. It also can get really good chorus sounds as well.

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Post by jalexquijano »

I just got my ibanez FL-9 made in Japan yesterday. Is it worth changing the LED to a brighter 3mm red one? Or should i leave it as it is?

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Post by Greenmachine »

Whatever floats your boat.
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Post by Dirk_Hendrik »

What exactly does the "made in Japan"mean. All FL9's were made in Japan. Unless you have a reissue which means it would be more worthwile mentioning that.

Better lower the value of the zener in series with the LED.
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Post by borislavgajic »

http://www.box.net/shared/md9ahno2fo

nice man from Novi Sad took this guts......so trace side is here now :D

which one is better sounding...this, or fl301(with MN3007)?

enjoy
Boris

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Post by Dirk_Hendrik »

FL9_service_manual.pdf
(271.19 KiB) Downloaded 509 times
might help too!
Sorry. Plain out of planes.

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Post by borislavgajic »

Dirk_Hendrik wrote:
FL9_service_manual.pdf
might help too!
Sure do!....that was there for long time!!!! thank You mister Dirk :thumbsup

so what do you people prefer MN3007 or MN3207 flangers ..?
stupid question, but please reply :block:

Boris

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Post by borislavgajic »

http://pdf1.alldatasheet.com/datasheet- ... C1583.html

how to replace this with common transistors?
is it possible?

thanks
Boris

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Post by lolbou »

These are built-in "difference amplifier". You can replace them with two identical NPNs connected as shown I believe, though you may need to get the specs close enough. Maybe a good result could be expected from an opamp actually?

In a thread here, Dirk mentions that the FL5 is a dead-on copy, I'll take some gut shots to post in the other thread and check for any replacement part...
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Post by Dirk_Hendrik »

borislavgajic wrote:http://pdf1.alldatasheet.com/datasheet- ... C1583.html

how to replace this with common transistors?
is it possible?

thanks
Boris
jep.
Just take 2 transistors from the same production line. Ibanez quit using those in the AD99 already.
Sorry. Plain out of planes.

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Post by lolbou »

lolbou wrote:and check for any replacement part...
It seems that two 2SC1815s are making the job in the FL-5. :wink:

ps: guts posted in the FL-5 thread...
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Post by Redhouse »

borislavgajic wrote:http://pdf1.alldatasheet.com/datasheet- ... C1583.html

how to replace this with common transistors?
is it possible?

thanks
Boris
Maybe?:

LM394
MAT02
MAT12

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Post by rrroo »

this is a great flanger, but i noticed a problem. the oscillating noise bleeds through when effect is bypassed. is there any mods that could help this (except using a bypass looper, of course)..

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Post by Dirk_Hendrik »

replace C132 and C135 (47uF/ 6.3volts) first
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Post by bucksears »

Resurrecting this one with an interesting finding:

I just got an FL-301DX (9V) on Monday (2nd one I've owned). It has a really noisy 'swoosh' (like air blowing), but the flanging works fine, so I opened it up to have a look. It also runs the MN3207. After taking hi-res shots of the solder side, I noticed the layout is VERY similar (about 80-85%) to the FL9. I'd bet good money that the only major difference in the FL9 is the addition of the Delay knob.

My vintage/MIJ FL9 has some kind of grounding issue where the LED stays slightly on when bypassed, causing any true-bypass pedal attached to it to pop when switched on/off.
I'm recreating the PCBs in Illustrator (should fit in a 125-B), so I'll have a better idea of them in a week or two. Ideally, I'd like to build new ones minus the buffer/switching and compare them back to back.

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Post by Dirk_Hendrik »

Your problem description gives me the suggestion there is a resistance between the GND connection of the power supply and the GND on the PCB. This causes the circuit GND to float compared to the power supply GND and causes the output to have a DC offset. Hence the pops on other pedals.
Sorry. Plain out of planes.

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Post by bucksears »

Thanks Dirk - I'll have a look there first.

- Buck

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Post by partybox »

Bump. Some more gutshot pictures. My Ibanez FL9 unit had two leaky caps and the dielectric juice took some paint off the PCB. So, I repainted the lines.
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