Question about Zoom G1x Guitar Multi Effects Pedal with EXpression Pedal

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What type of voltage regulator ic used in g1x?

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Please i need help where to buy this can i buy this online? please i really need this so badly..

Posted on Nov 29, 2012

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2933BD or 29M33. It is used in g1, g1x,g1xn,g2,g2iu etc.
This is 3.3 volts regulator ic.

what type of voltage regulator ic used in g1x? - 7_20_2012_4_36_59_pm.jpg

Posted on Jul 20, 2012

  • Romin Tolentino Sep 30, 2013

    where can we buy this, thanks

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My zoom g1x theres no sound.all power are working lcd light are on.but the sound cannot come out.can any one help me..


What letters / numbers that appears on the screen?
If the display is normal, and you can switch to other banks, and can edit each bank, then the problem of no sound, is at the pre-amp IC input, output amp, or CODEC converter.
This is the overall image of G1X inside.zoom-g1x-theres-no-sound-all-power-2ss5ycyvkoajtv035dpuezke-2-0.jpg Next, we zoom-in the middle of picture above.
See the next picture.
IC2 (left) is input pre-amp IC (NJM2100).
IC4 (middle) is the CODEC IC (WM8734).
IC5 (right) is the IC output (NJU7082).zoom-g1x-theres-no-sound-all-power-2ss5ycyvkoajtv035dpuezke-2-1.jpg

Test whether the input IC is working normally, turn ON G1X, plug the guitar, go to BYPASS/TUNER menu. When the TUNER function could work, certainly input IC is not damaged.
Means only two possibilities, namely CODEC and output IC. That is not easily tested, except in specific ways.

May also, there are problems in the input / output socket.
Turn ON G1X. Try the following (see figure below):
  • Test the output socket. Touch pin output socket (right red arrow) with finger / screwdriver / whatever. If sound is heard in the amplifier, the output socket is normal.
  • Test the input socket, Same as above. (left red arrow). (if this happen in this point, problem is clear).
zoom-g1x-theres-no-sound-all-power-2ss5ycyvkoajtv035dpuezke-2-3.jpg

NOTES:
If lcd light are on (as you say), but appearing G1 or d5 or bt, and the system are hang / frozen, this is a different issue to the one described above,and dealt with in different ways too.

References IC datasheet:

NJM2100.
http://www.njr.com/semicon/PDF/NJM2100_E.pdf
NJU7082
http://www.datasheetarchive.com/dlmain/Datasheets-22/DSA-439015.pdf
WM8734 http://www.cirrus.com/en/pubs/proDatasheet/WM8734_v4.4.pdf
.

Sep 10, 2015 | Zoom Music

1 Answer

Good day may zoom g1x is working but..but our electricty here is flactuating what should i do i use grneric adaptot 500ma..


Check the voltage and current rating of the processor. get an adapter with the same rating. (voltage has to be the same and the current rating has to be either the same or higher on the adapter). And since you dont have a stable supply, use a surge protector.

Aug 10, 2014 | Music

1 Answer

Where can i buy this regulator for zoom g1x?


If it is difficult to find 2933BD/29M33, use MC33269-3,3 for SMD package or LM1117-3,3 for TO-220 package.(datasheet LM1117)
You can find or buy here,in Indonesia:
It's very cheap, about 5000 IDR or it's about half US-$.

I repair musical instrument(guitar fx,amps,keyboard etc).
Visit me here.

Nov 27, 2012 | Zoom G1x Guitar Multi Effects Pedal with...

2 Answers

Wat type of voltage regulator ic is used


2933BD or 29M33. It is used in g1, g1x,g1xn,g2,g2iu etc.
This is 3.3 volts regulator ic.
My thread.Tommi.

7_16_2012_11_05_15_pm.jpg

Jun 24, 2012 | Zoom G1x Guitar Multi Effects Pedal with...

2 Answers

G1x zoom guitar effects no power even using an adaptor


if you're using an adaptor other than the original zoom, make sure it's 300mA or more and try switching the polarity.

Jun 20, 2011 | Samson ZOOM G1x Guitar Effects Pedal

1 Answer

Hi.why my zoom g1x has no power.im using a universal adator...i am in phillpines.power volts here..220 volts.how is the setting of my adaptor then?


I have a ZOOM GX1XN and it doesn't like universal adapters much. Using one with the wrong voltage or polarity may permanently damage your pedal. Try to obtain a proper ZOOM AC adapter (part number AD-0006 or AD-16) if possible. These are dual voltage and will work equally well with both 220 and 110 volts. Failing that you need an adapter that will give a DC (direct current) output of 9 volts at 0.5amps - maximum 4.5 watts. The outer contact (sleeve) of the adapter needs to be positive (+ve) and the inside contact negative (-ve). Lots of universal adapters are the other way around with the sleeve being negative - but some have a multi-connector on the end with both positive and negative sleeves.


Jan 08, 2011 | Zoom G1x Guitar Multi Effects Pedal with...

2 Answers

G1X not working


The first thing to check is the power source. A weak battery or adapter will cause this.
Beyond checking these the only other problems will be internal and require electronic servicing.,

Jul 02, 2010 | Zoom G1x Guitar Multi Effects Pedal with...

1 Answer

I plug in my casio ctk-800 and it does not turn on when i press the on button


If you lucky, the power jack may be at fault since it switches from external to internal battery, but most likely the internal supply is what's damaged... IC regulator possibly. A quick voltage check with a volt meter at the power leads on the main board will verify battery or xfmr supply voltage, if voltage is present then look in close proximity for an IC regulator and check for an output.

Jul 21, 2008 | Casio Lighted Keyboard LK90STADMC

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