Ibanez - FL-9 Flanger  [schematic]

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Ibanez - FL-9 Flanger

Postby analogguru » 21 Jun 2008, 10:04

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

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Re: Ibanez - FL-9 ( Flanger )

Postby puppiesonacid » 21 Jun 2008, 14:25

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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Ibanez - FL-9 Flanger

Postby jalexquijano » 25 May 2010, 19:03

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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Re: Ibanez Fl-9 made in Japan

Postby Greenmachine » 25 May 2010, 20:16

Whatever floats your boat.
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Re: Ibanez Fl-9 made in Japan

Postby Dirk_Hendrik » 26 May 2010, 11:32

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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Re: Ibanez - FL-9 ( Flanger )

Postby borislavgajic » 01 Jul 2010, 19:45

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
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Re: Ibanez - FL-9 ( Flanger )  [schematic]

Postby Dirk_Hendrik » 03 Jul 2010, 12:57

FL9_service_manual.pdf


might help too!
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Re: Ibanez - FL-9 ( Flanger )

Postby borislavgajic » 03 Jul 2010, 21:40

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:

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Re: Ibanez - FL-9 ( Flanger )

Postby borislavgajic » 04 Jul 2010, 10:26

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

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

thanks
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Re: Ibanez - FL-9 ( Flanger )

Postby lolbou » 04 Jul 2010, 10:43

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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Re: Ibanez - FL-9 ( Flanger )

Postby Dirk_Hendrik » 04 Jul 2010, 14:08

borislavgajic wrote:http://pdf1.alldatasheet.com/datasheet-pdf/view/108482/ETC/2SC1583.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.
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Re: Ibanez - FL-9 ( Flanger )

Postby lolbou » 04 Jul 2010, 15:06

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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Re: Ibanez - FL-9 ( Flanger )

Postby Redhouse » 12 Aug 2010, 16:16

borislavgajic wrote:http://pdf1.alldatasheet.com/datasheet-pdf/view/108482/ETC/2SC1583.html

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

thanks
Boris


Maybe?:

LM394
MAT02
MAT12
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Re: Ibanez - FL-9 ( Flanger )

Postby rrroo » 24 Mar 2015, 11:51

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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Re: Ibanez - FL-9 ( Flanger )

Postby Dirk_Hendrik » 24 Mar 2015, 13:11

replace C132 and C135 (47uF/ 6.3volts) first
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Re: Ibanez - FL-9 Flanger

Postby bucksears » 15 Feb 2017, 13:41

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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Re: Ibanez - FL-9 Flanger

Postby Dirk_Hendrik » 15 Feb 2017, 14:42

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.
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Re: Ibanez - FL-9 Flanger

Postby bucksears » 15 Feb 2017, 14:47

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

- Buck
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