3 ms·

I acquired an old Sony CMT-EX1 CD player a while back and was tinkering around with it. I found the service manual online and was blown away. There are pinouts!

I acquired an old Sony CMT-EX1 CD player a while back and was tinkering around with it. I found the service manual online and was blown away. There are pinouts! Block diagrams [0] for the PCBs! Capacitor inventories! I wish we still did this for consumer hardware. [0] https://servlib.com/sony/audio/cmt-ex1-hcd-ex1.html?start=29 https://servlib.com/sony/audio/cmt-ex1-hcd-ex1.html?start=29

kushie 3y ago
this is out of nowhere but if anyone can help me find a service manual (not owners manual) for a Yamaha Clavinova CLP-50 i would be in deep gratitude. a few octaves intermittently don't work and i'd love to tinker
- sobkas 3y ago
  It's service manual, at least it says so https://elektrotanya.com/yamaha_clp-50_sm.pdf/download.html https://elektrotanya.com/yamaha_clp-50_sm.pdf/download.html
- notjulianjaynes 3y ago
  https://elektrotanya.com/yamaha_clp-50_sm.pdf/download.html https://elektrotanya.com/yamaha_clp-50_sm.pdf/download.html
sobkas 3y ago
Making old technology viable instead of buying new one, or even worse tinkering with it and unlocking or adding new functionality corporations reserved for higher end models, professional equipment or just outright didn't want to implement assured it will never happen. In the past only few tinkerers actually cared about this. Now everything is on the internet and everyone have access to it. This is a season for planed obsolescence after all. I'm not saying it's good, it's just what it is.
mk_stjames 3y ago
Japanese service manuals for electronics, especially ones starting in the early 80's when the printing quality started getting really good, are a sight to behold. In the era before the EDA software did everything, the annotated schematics and PCB board layouts in the manuals are gorgeous, especially those by Sony and Matsushita / Panasonic. When the EDA tools started making the prints fully automatically and all the tables and notes just became automated outputs to PDF... it kinda killed a bit of the artistry that went into the layouts of the prints. I also feel that the care and choosing the fonts / lettering styles / etc. have become eschewed in favor of just putting out whatever the defaults are from current software without care of adjustment. It's why all published schematics these days look alike, and boring by comparison. The early Walkman manuals are a good example of this: https://archive.org/details/wm-f15_202004/SONYWM-DD_service_manual/page/n11/mode/2up https://archive.org/details/wm-f15_202004/SONYWM-DD_service_... The perfect little isometric views of the special isolated components in boxes along the outside, the shading of the traces on the PCB....
- robomartin 3y ago
  > killed a bit of the artistry that went into the layouts Yes. Absolutely. Sadly, EDA tools like KiCad and Altium (two of the ones I use most often) make absolutely ugly schematics. Just horrible looking stuff. I always thought this had to do with engineers who did not necessarily come up drawing schematics by hand. In the later-70's to early 80's --and a little beyond-- you could pickup magazines like Byte and Popular Electronics and see beautifully drawn schematics that were well laid-out and easy to understand. Same with data books. I built lots of projects from those magazines back then. Later on, professionally, I developed a schematic drafting style that mimicked the beautiful schematics from those publications. CAD requires an effort. You can produce great looking schematics. It depends on how you choose to produce your libraries. We make libraries that make great looking schematics. The difference in legibility is, in my opinion, worth the time we spend creating good looking symbols and parts.

kushie 3y ago

this is out of nowhere but if anyone can help me find a service manual (not owners manual) for a Yamaha Clavinova CLP-50 i would be in deep gratitude. a few octaves intermittently don't work and i'd love to tinker

sobkas 3y ago
It's service manual, at least it says so https://elektrotanya.com/yamaha_clp-50_sm.pdf/download.html https://elektrotanya.com/yamaha_clp-50_sm.pdf/download.html
notjulianjaynes 3y ago
https://elektrotanya.com/yamaha_clp-50_sm.pdf/download.html https://elektrotanya.com/yamaha_clp-50_sm.pdf/download.html

sobkas 3y ago

Making old technology viable instead of buying new one, or even worse tinkering with it and unlocking or adding new functionality corporations reserved for higher end models, professional equipment or just outright didn't want to implement assured it will never happen. In the past only few tinkerers actually cared about this. Now everything is on the internet and everyone have access to it. This is a season for planed obsolescence after all. I'm not saying it's good, it's just what it is.

mk_stjames 3y ago

Japanese service manuals for electronics, especially ones starting in the early 80's when the printing quality started getting really good, are a sight to behold. In the era before the EDA software did everything, the annotated schematics and PCB board layouts in the manuals are gorgeous, especially those by Sony and Matsushita / Panasonic. When the EDA tools started making the prints fully automatically and all the tables and notes just became automated outputs to PDF... it kinda killed a bit of the artistry that went into the layouts of the prints. I also feel that the care and choosing the fonts / lettering styles / etc. have become eschewed in favor of just putting out whatever the defaults are from current software without care of adjustment. It's why all published schematics these days look alike, and boring by comparison. The early Walkman manuals are a good example of this: https://archive.org/details/wm-f15_202004/SONYWM-DD_service_manual/page/n11/mode/2up https://archive.org/details/wm-f15_202004/SONYWM-DD_service_... The perfect little isometric views of the special isolated components in boxes along the outside, the shading of the traces on the PCB....

robomartin 3y ago
> killed a bit of the artistry that went into the layouts Yes. Absolutely. Sadly, EDA tools like KiCad and Altium (two of the ones I use most often) make absolutely ugly schematics. Just horrible looking stuff. I always thought this had to do with engineers who did not necessarily come up drawing schematics by hand. In the later-70's to early 80's --and a little beyond-- you could pickup magazines like Byte and Popular Electronics and see beautifully drawn schematics that were well laid-out and easy to understand. Same with data books. I built lots of projects from those magazines back then. Later on, professionally, I developed a schematic drafting style that mimicked the beautiful schematics from those publications. CAD requires an effort. You can produce great looking schematics. It depends on how you choose to produce your libraries. We make libraries that make great looking schematics. The difference in legibility is, in my opinion, worth the time we spend creating good looking symbols and parts.