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Monoprice 5-Watt Guitar Amplifier won't recognize SD card.
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Monoprice 5-Watt Guitar Amplifier won't recognize SD card.

by moedigs on Tue Jul 07, 2020 11:50 am

Recently purchased Monoprice 5-Watt Guitar Amplifier, Portable Recorder [/url]https://www.adafruit.com/product/4402#technical-details[url]
won't recognize this micro SDcard: https://www.adafruit.com/product/1294

Reads: "NO" on display, except when card is briefly pushed in, then reverts to "NO" display.

Card is formatted ExFat because I work on Macs: I have reformatted it several times.

Any input appreciated.

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Re: Monoprice 5-Watt Guitar Amplifier won't recognize SD car

by adafruit_support_carter on Tue Jul 07, 2020 1:25 pm

Card is formatted ExFat because I work on Macs: I have reformatted it several times.

Try FAT32 and see if it recognizes that.

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Re: Monoprice 5-Watt Guitar Amplifier won't recognize SD car

by moedigs on Tue Jul 07, 2020 3:00 pm

It arrived formatted FAT, and that didn't work-- I reformatted ExFAT. But just to humor you I reformatted it again: no dice.

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Re: Monoprice 5-Watt Guitar Amplifier won't recognize SD car

by jerryn on Tue Jul 07, 2020 3:57 pm

FYI - I just tried mine and if there is no .mp3 file on the card is says "No" as you described (briefly "FF") but if I put a .mp3 file on the card, it then starts playing it when I insert the card.

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Re: Monoprice 5-Watt Guitar Amplifier won't recognize SD car

by moedigs on Tue Jul 07, 2020 11:08 pm

Thanks-- this gets rid of the display error, and I am able to play an .mp3-- but I was actually looking to record sound on the card-- and it still seems not able to do this. Even when I press the appropriate button in REC mode, it just plays the mp3 file, instead of recording.

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Re: Monoprice 5-Watt Guitar Amplifier won't recognize SD car

by adafruit_support_carter on Wed Jul 08, 2020 11:15 am

Which input are you using? Guitar, microphone, or aux? Or some combination of those?

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Re: Monoprice 5-Watt Guitar Amplifier won't recognize SD car

by moedigs on Wed Jul 08, 2020 12:33 pm

Guitar. The manual says that REC mode should capture a mix of all three.

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Re: Monoprice 5-Watt Guitar Amplifier won't recognize SD car

by adafruit_support_carter on Wed Jul 08, 2020 12:37 pm

Is the display showing "MP3" or "Guitar" or both?

modes.jpg
modes.jpg (72.37 KiB) Viewed 18 times

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Re: Monoprice 5-Watt Guitar Amplifier won't recognize SD car

by moedigs on Mon Jul 13, 2020 1:25 pm

I'm trying to record in "Guitar REC" mode (the Display says "Guitar REC), but when I press the "Play" button to record, it switches to MP3 mode and begins playing the MP3 on file instead of recording a new one.

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Re: Monoprice 5-Watt Guitar Amplifier won't recognize SD car

by adafruit_support_carter on Mon Jul 13, 2020 1:32 pm

As a quick test - what happens if you start with a blank SD card? Without any MP3 files on it. Can you get it to record guitar input then?

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Re: Monoprice 5-Watt Guitar Amplifier won't recognize SD car

by moedigs on Mon Jul 13, 2020 10:35 pm

I began this thread with a totally blank SD card. Please see previous messages.

Any recommendations for other resources? Has there been a faulty shipment of monoprice amps? Is there a compatability issue with the type of SD card?

Thanks! :)

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Re: Monoprice 5-Watt Guitar Amplifier won't recognize SD car

by adafruit2 on Wed Jul 15, 2020 6:01 pm

we haven't heard of this issue before - but we also have not used it for the purpose you're trying :) have you tried contacting monoprice for tech support? they manufactured it so hopefully they'd have staff to help support it :D

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