Zoom Q8 SD Problems

Questions and answers related to any Zoom Gear that doesn't have its own sub-forum yet. This includes any new gear that's been announced, and any old gear you've got. Please don't "post and run". Participate in the discussion. Thanks.
Post Reply
tomasjota95
new to this board
new to this board
Posts: 5
Joined: Wed Nov 14, 2018 9:29 pm

Zoom Q8 SD Problems

Post by tomasjota95 » Fri Nov 16, 2018 12:05 pm

Hi!
I'm from Argentina and this is my first post, so sorry for my english. I will try to explain my problem the best way possible.
I have a Zoom Q8 that after opening it for repairing the micro-USB port, it got problems reading the SD cards.

First i tested a 16GB Kingston MicroSDHC class 10, UHS class 1, formatted as NTFS and as FAT32 by computer, and the camera didn't recognize it (it said "No SD"). After i tested a class 4 SD (don't have it here to tell you the exact model, i can tell you later today, sorry) and it said "Invalid Card". I guess this card it's too old for the camera. Finally i tested a SanDisk Extreme Pro (img here: https://photos.app.goo.gl/KoYZawqrViedoZU29) that was the SD i always used and it says "Card Full", even after formatting it from the camera.

Any idea to make it work well?

Thanks from now!
0 x

User avatar
Jim_Fogle
Jedi Zoom Master
Jedi Zoom Master
Posts: 1034
Joined: Mon Aug 13, 2007 4:34 pm
Contact:

Re: Zoom Q8 SD Problems

Post by Jim_Fogle » Mon Nov 19, 2018 8:44 pm

Your English is fine! That is a good description of the problem you are having. I do have a few questions though that will help me and others to better understand your problem.

When you repaired the micro-usb port, what steps did you take to repair it? One step you may have taken is to replace the micro-usb hardware port, another is to replace the usb controller integrated circuit chip, another would be solder existing parts back onto the circuit board or you may have taken another step entirely that I have not considered.

If you replaced the hardware, did you replace original hardware with an exact duplicate replacement part? If not did you research original and replacement parts to ensure they were compatible? For instance different micro-usb ports may have different memory size restrictions or acceptable voltage levels.

Have you checked your solder traces for a short or open?

Many times engineers will design a circuit so the same integrated circuit chip (ic) controls both the usb port and SD card reader\writer operation. Because of possible static electricity damage, it is common for repair depots to replace IC, port and card reader\writer at the same time

Some Zoom products have difficulty using or reading SD cards formatted by a computer instead of the device.

Hopefully, others more familiar with the Zoom Q8 will provide their input.
0 x
http://fogle622.wix.com/fogle622-audio-home
https://soundcloud.com/you/tracks
http://www.soundclick.com/bands/default ... tent=music
Zoom MRS-8
Gibson acoustic 12-string, Peavey Predator, Line6 Variax, Yamaha keyboard and digital drums
2018 Band-in-a-Box, ChordPulse http://www.chordpulse.com/
Cakewalk by BandLab, Sonar Home Studio, Cakewalk Music Creator 6, Audacity
Win 7 laptop i3, 8 GB DRAM, 500GB SSD

tomasjota95
new to this board
new to this board
Posts: 5
Joined: Wed Nov 14, 2018 9:29 pm

Re: Zoom Q8 SD Problems

Post by tomasjota95 » Wed Nov 28, 2018 10:37 pm

Thanks for the answer Jim!
I tell you, the replacement i did was of the mini-usb port hardware (i writed it wrong, it's mini and not micro jaja). I bought a new piece in a store, here in my country (it's not the original replacement part, but i think it has to work because it fits perfectly and the camera charges normally), and i soldered it. I've re-soldered the components near the mini-usb, and also re-soldered a cable of the screen flex that has been desoldered by me unintentionally, but i don't think this caused the problems of the SD card reader.

I don't know what else test. If you can help me i will be grateful.
Thanks in advance!
0 x

User avatar
Jim_Fogle
Jedi Zoom Master
Jedi Zoom Master
Posts: 1034
Joined: Mon Aug 13, 2007 4:34 pm
Contact:

Re: Zoom Q8 SD Problems

Post by Jim_Fogle » Thu Nov 29, 2018 10:01 pm

Have you used a magnifier glass or used the macro setting on a camera to take an extreme close up view of your repair? Is it possible a circuit board run maybe open or two runs are shorted together?

Why did you re-solder the components near the mini-usb port? If the heat from your soldering iron loosened the components, that is not good. If you unnecessarily loosened components with your soldering iron then you are using the wrong soldering iron. Yours is either too hot, too large or both.

Other than a mechanical issue like a short or open another possibility is other components were likely damaged by static electricity. I doubt if your screen flex cable repair damaged anything involved with the usb port.
0 x
http://fogle622.wix.com/fogle622-audio-home
https://soundcloud.com/you/tracks
http://www.soundclick.com/bands/default ... tent=music
Zoom MRS-8
Gibson acoustic 12-string, Peavey Predator, Line6 Variax, Yamaha keyboard and digital drums
2018 Band-in-a-Box, ChordPulse http://www.chordpulse.com/
Cakewalk by BandLab, Sonar Home Studio, Cakewalk Music Creator 6, Audacity
Win 7 laptop i3, 8 GB DRAM, 500GB SSD

tomasjota95
new to this board
new to this board
Posts: 5
Joined: Wed Nov 14, 2018 9:29 pm

Re: Zoom Q8 SD Problems

Post by tomasjota95 » Fri Nov 30, 2018 3:04 pm

Jim_Fogle wrote:
Thu Nov 29, 2018 10:01 pm
Have you used a magnifier glass or used the macro setting on a camera to take an extreme close up view of your repair? Is it possible a circuit board run maybe open or two runs are shorted together?
I didn't. I tested with a multitester if there is no shortcircuit, but i will do that.
Jim_Fogle wrote:
Thu Nov 29, 2018 10:01 pm
Why did you re-solder the components near the mini-usb port? If the heat from your soldering iron loosened the components, that is not good. If you unnecessarily loosened components with your soldering iron then you are using the wrong soldering iron. Yours is either too hot, too large or both.
I did it because i suspect i could have touched any component with the soldering iron and that could have made an open. By the way my soldering iron it's a Taiyo of 40W. It's too much for SMD components, right?
Jim_Fogle wrote:
Thu Nov 29, 2018 10:01 pm
Other than a mechanical issue like a short or open another possibility is other components were likely damaged by static electricity.
If i can't repair it i will lean towards that possibility.

Thanks again Jim.
1 x

User avatar
Jim_Fogle
Jedi Zoom Master
Jedi Zoom Master
Posts: 1034
Joined: Mon Aug 13, 2007 4:34 pm
Contact:

Re: Zoom Q8 SD Problems

Post by Jim_Fogle » Fri Nov 30, 2018 4:03 pm

40 Watts typically used for standard electronic soldering however if that is what you have then that is what you use.

Here is a link that provides some practical suggestions for soldering SMD components using standard tools: https://www.build-electronic-circuits.c ... soldering/ The linked webpage also has some additional links you might find of interest.

Here is another step-by-step guide: https://www.instructables.com/id/How-to ... -easy-way/
0 x
http://fogle622.wix.com/fogle622-audio-home
https://soundcloud.com/you/tracks
http://www.soundclick.com/bands/default ... tent=music
Zoom MRS-8
Gibson acoustic 12-string, Peavey Predator, Line6 Variax, Yamaha keyboard and digital drums
2018 Band-in-a-Box, ChordPulse http://www.chordpulse.com/
Cakewalk by BandLab, Sonar Home Studio, Cakewalk Music Creator 6, Audacity
Win 7 laptop i3, 8 GB DRAM, 500GB SSD

tomasjota95
new to this board
new to this board
Posts: 5
Joined: Wed Nov 14, 2018 9:29 pm

Re: Zoom Q8 SD Problems

Post by tomasjota95 » Mon Dec 03, 2018 10:22 am

Thanks Jim. When i have a moment out of work, i will read it.
1 x

User avatar
Jim_Fogle
Jedi Zoom Master
Jedi Zoom Master
Posts: 1034
Joined: Mon Aug 13, 2007 4:34 pm
Contact:

Re: Zoom Q8 SD Problems

Post by Jim_Fogle » Tue Dec 04, 2018 6:18 pm

Good luck! I hope you get the Zoom Q8 working once more!
0 x
http://fogle622.wix.com/fogle622-audio-home
https://soundcloud.com/you/tracks
http://www.soundclick.com/bands/default ... tent=music
Zoom MRS-8
Gibson acoustic 12-string, Peavey Predator, Line6 Variax, Yamaha keyboard and digital drums
2018 Band-in-a-Box, ChordPulse http://www.chordpulse.com/
Cakewalk by BandLab, Sonar Home Studio, Cakewalk Music Creator 6, Audacity
Win 7 laptop i3, 8 GB DRAM, 500GB SSD

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest