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Keyboards / Re: how do i find info about a old keyboard i have?
« Last post by ihaveaoldkeyboardthatiuse on Wed, 26 March 2025, 11:25:28 »found the silicone
Recent Posts
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New Members / Hello GH!
« Last post by Y.Y on Wed, 26 March 2025, 10:48:59 »Hi, I’m Y.Y, a keycap designer bursting with excitement to join this community!
I want to settle down here to geek out about niche design trends or styles.
I hope we will have a wonderful communication here!
I want to settle down here to geek out about niche design trends or styles.
I hope we will have a wonderful communication here!
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Off Topic / Re: Gaming PC Parts discussion thread.
« Last post by tp4tissue on Wed, 26 March 2025, 10:15:21 »OMG, The Tp4 submitted a bug report for a game almost no one plays to AMD,
AND THEY ACTUALLY FIXED IT.
OMG.. Team Red!!
AND THEY ACTUALLY FIXED IT.
OMG.. Team Red!!
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Keyboards / Re: [HELP] Powers On but Not Recognized - DZ60 KBDFans
« Last post by thelastangel_0 on Wed, 26 March 2025, 10:13:46 »Oh, and my "Pro Micro" board, which uses the same ATMEGA32U4 chip, is working fine, by the way.
I'm going to ask my friend who helped me at the beginning if he could check everything you're mentioning since he does have an oscilloscope.
what do you think about unsoldering the capacitors to test them? because I'm not sure if installing the new ATMEGA32U4 might cause it to burn out or something.
Just so you know, I'm really just trying to figure out what's wrong before I start swapping anything around.
I measured the values of literally everything:
Resistor Readings:
RCC1 & RCC2: 5.1 kOhms (0402 package)
R31 to R17, R46 to R33, R60 to R48,R76 to R62, R87 to R77: 0.994 kOhms
R1: 0.994 kOhms (Looks like this might be a repeat, assuming it's the same as above)
R2: Nothing showing up here (SMD 220)
R3: 22.0 Ohms (SMD 220)
R4: 8.86 kOhms (SMD 010)
R00, R01 (Assuming these are also 0.994 kOhms unless different)
So, next up I'm planning to check out the capacitors, the crystal Y1, and Q1 (the 9926A).
Any insights or advice you can offer on the missing reading for R2 or the idea of checking the capacitors would be greatly appreciated.
I'm going to ask my friend who helped me at the beginning if he could check everything you're mentioning since he does have an oscilloscope.
what do you think about unsoldering the capacitors to test them? because I'm not sure if installing the new ATMEGA32U4 might cause it to burn out or something.
Just so you know, I'm really just trying to figure out what's wrong before I start swapping anything around.
I measured the values of literally everything:
Resistor Readings:
RCC1 & RCC2: 5.1 kOhms (0402 package)
R31 to R17, R46 to R33, R60 to R48,R76 to R62, R87 to R77: 0.994 kOhms
R1: 0.994 kOhms (Looks like this might be a repeat, assuming it's the same as above)
R2: Nothing showing up here (SMD 220)
R3: 22.0 Ohms (SMD 220)
R4: 8.86 kOhms (SMD 010)
R00, R01 (Assuming these are also 0.994 kOhms unless different)
So, next up I'm planning to check out the capacitors, the crystal Y1, and Q1 (the 9926A).
Any insights or advice you can offer on the missing reading for R2 or the idea of checking the capacitors would be greatly appreciated.
85
Keyboards / Re: [HELP] Powers On but Not Recognized - DZ60 KBDFans
« Last post by ncrowl on Wed, 26 March 2025, 09:42:44 »Is the C4 capacitor in my board one of the two capacitors for the crystal clock (Y1)?
You mentioned that the capacitors for the crystal clock (XTAL1 & XTAL2) are typically 12-22 pF and rarely fail. Based on the PCB design and component labeling, would C7 also be related to Y1, or is it serving a different purpose in this circuit?
dono what the other 2 capacitors do, take a peek at the GH60 schematics:
http://blog.komar.be/wp-content/uploads/2013/02/gh60_revC_2016-06-02.pdf
(cant find schematics for "DZ60" but think its similar, guess 1 or more are needed to stabilize main -voltage -rail, and then something to get AD-converter, -if thats in use..
But your "Pro Micro" is good? same mcu
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Off Topic / Re: What did you do today?
« Last post by tp4tissue on Wed, 26 March 2025, 09:33:15 »Say what you will about the downfall of society and the bleakness of our future, but if nothing else, at least Fortnite has taught our youth to always thank their bus driver.
Bus drivers in wealthy areas have it really good. The kids tip $500 per person on christmas.
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Keyboards / Re: [HELP] Powers On but Not Recognized - DZ60 KBDFans
« Last post by zegonix on Wed, 26 March 2025, 09:32:06 »before changing anything it is usually a good idea to try and identify the problem. as ncrowl already suggested, i would try to measure the voltages on the plugged in board. i would start with the usb and supply voltages on the voltage regulator, and continue with the vcc and ground pins of the mcu. if you have access to an oscilloscope i would take a look at the clock signal (measure on the components connected to y1) and if that doesn't show any errors i would check the uart lines.
about the capacitors.. usually there are 100nF at every vcc pin and a 1uF between regulator and chip, just before branching to the vcc pins. at the regulator one would often use a 100nF on both sides and a 10uF on one side (can't remember on which though). but check the manual for the chip in question to see the manufacturers recommendation on the values.
about the capacitors.. usually there are 100nF at every vcc pin and a 1uF between regulator and chip, just before branching to the vcc pins. at the regulator one would often use a 100nF on both sides and a 10uF on one side (can't remember on which though). but check the manual for the chip in question to see the manufacturers recommendation on the values.
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Interest Checks / Re: [IC] Caerdroia by AKB (Price and GB date announced!)
« Last post by Alchemist Keyboards on Wed, 26 March 2025, 09:21:05 »can anyone share more pictures of the Verdant colour please? I don't mind if it's from other layouts
The same colour was used on a Petrichor prototype shown here
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Keyboards / Re: [HELP] Powers On but Not Recognized - DZ60 KBDFans
« Last post by thelastangel_0 on Wed, 26 March 2025, 09:10:20 »Is the C4 capacitor in my board one of the two capacitors for the crystal clock (Y1)?
You mentioned that the capacitors for the crystal clock (XTAL1 & XTAL2) are typically 12-22 pF and rarely fail. Based on the PCB design and component labeling, would C7 also be related to Y1, or is it serving a different purpose in this circuit?
You mentioned that the capacitors for the crystal clock (XTAL1 & XTAL2) are typically 12-22 pF and rarely fail. Based on the PCB design and component labeling, would C7 also be related to Y1, or is it serving a different purpose in this circuit?
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Keyboards / Re: [HELP] Powers On but Not Recognized - DZ60 KBDFans
« Last post by ncrowl on Wed, 26 March 2025, 08:01:14 »(if measured in-circuit, these may not be entirely accurate):
C4, C5, C9 → ~(5.35kΩ)
C6, C7, C8 → (8.24kΩ)
...
? only voltage values can be measured in-circuit.
The 2 capacitors for the crystal-clock are 12-22 pF, they basically never breaks, is on pin XTAL1 & XTAL2 on the mcu.
One could probably use your friends "Pro Micro" to wire up a keyboard.
(or any mcu with USB host mode)
Its an mcu used by Arduino, also atmega, so there are tons of other forums.