Gamerpaddy

Latest revision as of 12:40, 11 June 2026

About

YouTube: gamerpaddy YouTube Channel
Email: gamerpaddyschannel at gmail dot com
OSHW Repository: gamerpaddy open source hardware lab

Biography

I grew up in germany where every once in a while people would put their broken and unused household electronics on the streets for disposal. I picked up whatever I could, took it apart and tried to understand how it worked.

Over the years that turned from just taking things apart into actually fixing and reverse engineering them. I built myself an electronics workshop and gathered knowledge from whatever I had on hand or access to, learning by doing and from the resources available on the internet. That eventually led to designing and manufacturing things myself, a few of which ended up helping other people too.

I am a full supporter of the right to repair movement and contribute through work, knowledge and helping others where I can.

Projects

Yamaha EBike Battery Dongle

Starting in 2016 I worked on an emulator module to use third-party lithium-ion batteries on Yamaha powered e-bikes. The module emulates the datastream of a healthy battery and sends it to the Yamaha PW series engine, allowing any power source in the 10-cell lithium-ion voltage range (27-42V) to be used in place of the original battery.

Through this work most of the Yamaha battery communication protocol was figured out, which let people extend their range with DIY batteries and repair their failed originals, which made up 30-50% of the cost of a new e-bike. Discussion and findings were shared in the german pedelec forums [1].

More information on the Yamaha EBike Battery Dongle wiki page.

Topping PA5 Amplifier D01 Replacement Module

In 2023 I worked on a replacement module to help people repair their failed Topping PA5 Class-D Amplifiers, as documented in the audiosciencereview forums [2].

The original units had a manufacturing flaw where potting compound used to protect the pre-amplifier module from being copied would expand and contract during thermal cycling, eventually cracking solder joints and taking the whole amplifier with it. I depotted the original module, reverse engineered it, and rebuilt it with a more efficient layout for cheaper manufacturing. It has since been built and used by people all over the world with none of the replacements failing so far. In some countries warranty claims were not a viable option due to the product being shipped from overseas, making a DIY fix the only practical solution.

More information on the Topping PA5 wiki page.

GE Medical Flashpad Digital X-ray Detector

I got hold of a GE Flashpad, a 2048x2048 digital radiography image sensor originally used in GE Optima 220AMX mobile X-ray units. These show up on the used market mostly in unknown or broken condition.

I tore it down, documented the hardware and spent time reverse engineering the URP/PDAP communication protocol it uses over Ethernet. I got to the point where the detector can be fully identified over the network, scripts can be downloaded and executed, and a acquisition run can be driven from a custom host implementation without any GE software involved.

More information on the GE Medical Flashpad Digital Xray Detector wiki page.

@@ Line 1: / Line 1: @@
-'''YouTube''': [https://www.youtube.com/gamerpaddy gamerpaddy YouTube Channel]
+==About==
-'''Email''': gamerpaddyschannel at gmail dot com
+'''YouTube''': [https://www.youtube.com/gamerpaddy gamerpaddy YouTube Channel]<br>
+'''Email''': gamerpaddyschannel at gmail dot com<br>
+'''OSHW Repository''': [https://oshwlab.com/gamerpaddy gamerpaddy open source hardware lab]
+===Biography===
+I grew up in germany where every once in a while people would put their broken and unused household electronics on the streets for disposal. I picked up whatever I could, took it apart and tried to understand how it worked.
+Over the years that turned from just taking things apart into actually fixing and reverse engineering them. I built myself an electronics workshop and gathered knowledge from whatever I had on hand or access to, learning by doing and from the resources available on the internet. That eventually led to designing and manufacturing things myself, a few of which ended up helping other people too.
+I am a full supporter of the right to repair movement and contribute through work, knowledge and helping others where I can.
+===Projects===
+====Yamaha EBike Battery Dongle====
+Starting in 2016 I worked on an emulator module to use third-party lithium-ion batteries on Yamaha powered e-bikes. The module emulates the datastream of a healthy battery and sends it to the Yamaha PW series engine, allowing any power source in the 10-cell lithium-ion voltage range (27-42V) to be used in place of the original battery.
+Through this work most of the Yamaha battery communication protocol was figured out, which let people extend their range with DIY batteries and repair their failed originals, which made up 30-50% of the cost of a new e-bike. Discussion and findings were shared in the german pedelec forums [https://www.pedelecforum.de/forum/index.php?threads/yamaha-reverse-engineering.39480/].
+More information on the [[Yamaha EBike Battery Dongle]] wiki page.
-'''OSHW Repository''': [https://oshwlab.com/gamerpaddy gamerpaddy open source hardware lab]
+====Topping PA5 Amplifier D01 Replacement Module====
+In 2023 I worked on a replacement module to help people repair their failed Topping PA5 Class-D Amplifiers, as documented in the audiosciencereview forums [https://www.audiosciencereview.com/forum/index.php?threads/topping-pa5-fix-d01-module-replacement-for-everyone.44219/#post-1572910].
+The original units had a manufacturing flaw where potting compound used to protect the pre-amplifier module from being copied would expand and contract during thermal cycling, eventually cracking solder joints and taking the whole amplifier with it. I depotted the original module, reverse engineered it, and rebuilt it with a more efficient layout for cheaper manufacturing. It has since been built and used by people all over the world with none of the replacements failing so far. In some countries warranty claims were not a viable option due to the product being shipped from overseas, making a DIY fix the only practical solution.
+More information on the [[Topping PA5]] wiki page.
+====GE Medical Flashpad Digital X-ray Detector====
-==='''Brief Biography'''===
+I got hold of a GE Flashpad, a 2048x2048 digital radiography image sensor originally used in GE Optima 220AMX mobile X-ray units. These show up on the used market mostly in unknown or broken condition.
-Every once in a while the city located in germany he lives in, had 1-2 days where people put their broken and unused household electronics on the streets to be picked up for disposal. He went there, picked up stuff, took it apart and tried to understand it.<br>
-From taking stuff apart just to look how it works until actually fixing or reverse engineering it, years have passed by. He built himself a electronics workshop and gathered knowledge over the years from stuff he had on hand and/or access to. <br>
-Learning by doing and from the broad spectrum of resources on the internet, he went into designing and manufacturing the things needed or wanted by himself and other people. A few projects that helped a handful of people are the result of this.<br>
-He still lives in his hometown in germany as of today and is still tinkering, reparing, designing and trying to understand the rapid growth of technology.<br>
-<br>
-Full supporter of the right to repair movement by contributing work, knowledge and helping others as seen in the following Projects:<br>
-====''Yamaha EBike Battery Dongle''====
+I tore it down, documented the hardware and spent time reverse engineering the URP/PDAP communication protocol it uses over Ethernet. I got to the point where the detector can be fully identified over the network, scripts can be downloaded and executed, and a acquisition run can be driven from a custom host implementation without any GE software involved.
-Starting in 2016 gamerpaddy worked on a emulator module to be able to use third-party lithium-ion batteries on Yamaha powered e-bikes, his efforts and contributions can be found in the german e-bike and pedelec forums[https://www.pedelecforum.de/forum/index.php?threads/yamaha-reverse-engineering.39480/ ]<br>
-This module allowed to use of third-party batteries or any power source within the voltage range of a 10-Cell Lithium-Ion Battery ( 27 - 42V ) to be used with the Yamaha PW series e-bike systems by emulating the datastream of a healthy Battery and sending it to the Engine.<br>
-By this, most of the communication protocol was found out and people were able to extend their range by utilizing DIY batteries and repairing their failed batteries that made up 30 to 50% the cost of a new e-bike.<br>
-This is just a brief summary, more information can be found on the Wiki page [https://wiki.recessim.com/view/Yamaha_EBike_Battery_Dongle Yamaha EBike Battery Dongle]<br>
-====''Topping PA5 Module Fix''====
+More information on the [[GE Medical Flashpad Digital Xray Detector]] wiki page.
-In 2023 he worked on a replacement module to help people repair their failed Topping PA5 Class-D Amplifiers as seen in the audiosciencereview forums [https://www.audiosciencereview.com/forum/index.php?threads/topping-pa5-fix-d01-module-replacement-for-everyone.44219/#post-1572910 ]<br>
-The units in question had a fatal manufacturing flaw where they have used potting compound in their pre-amplifier module to protect it from being copied, <br>
-but they overlooked the fact that it slightly expanded and contracted during thermal cycling and ended up cracking solder joins and rendering the module and with this the whole amplifiers faulty.<br>
-The module has been depotted, reverse engineered, rebuilt with more efficient layout for cheaper manufacturing and successfully tested by a dozen of people.<br>
-People all over the world have ordered, built and used this D01 Replacement Module for their Topping PA5 Amplifiers to get them back working and none of them have failed so far.<br>
-Due to difficulties by the Product being sold and shipped from Overseas / Asia, in some countries warranty claims werent an viable option.<br>
-More information about this Project can be found on the Wiki page [https://wiki.recessim.com/view/Topping_PA5_D01_Replacement_Module Topping PA5 D01 Replacement Module]