micr0man
Member
Hello all,
I am a fond piano player and was recently given a Yamaha PSR-6000. it has had a lot of use and during my piano lesson yesterday the screen started flickering and a puff of smoke came out. I immediately turned my piano off and put it outside to cool.
Later that day i decided i was going to take it all apart, so I did. I was expecting it too be something in the power supply, such as an electrolytic cap (suggested by a few people on the chat) but found out it was a mica cap which i shall replace. I am about to swap it with another capacitor but due to my age i do not enjoy working with enclosures that house 230v (my dad is an electrician of some sorts so i am not too bad). I am willing to give my piano another try with the new capacitor but i am worried it may have only been a side problem. One thing i have noticed is this step up board does smell of the smoke that came out during my lesson.
I was hoping to look at all the components on the board to calculate the input voltage but am now finding it too be much harder than i initially thought it would be so i can hopefully test it out on my bench power supply first. I would like help to find if this is possible and am willing to do a schematic if some people can help me on one or two components as i can not find any information on them.
Firstly it is the big component on the board labeled "VS60250". I am thinking it is a coil of some sorts but i would like to know some specific specs on it. It contains 9 pins. The other component i am enquiring about is a component labeled D1863. It contains 3 pins so I am thinking it is a transistor, but cannot find many specfics on it, I found a transistor with a similar number but the packages do not look the same. On the silkscreen it is TR* where * is the component number
If it of any help the CFL needs a 1000Vrms start voltage and a 275Vrms operating voltage. A datasheet is here: https://www.beyondinfinite.com/lcd/Library/Hosidan/HLM6323.pdf
As another note I am wondering if anybody has the service manual for the PSR-6000 keyboard and if so perhaps somebody could give a link to download it if thats legal as it could help me stop wasting a lot of time figuring all this out,
Thanks, Dave
Some Pictures follow:
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I am a fond piano player and was recently given a Yamaha PSR-6000. it has had a lot of use and during my piano lesson yesterday the screen started flickering and a puff of smoke came out. I immediately turned my piano off and put it outside to cool.
Later that day i decided i was going to take it all apart, so I did. I was expecting it too be something in the power supply, such as an electrolytic cap (suggested by a few people on the chat) but found out it was a mica cap which i shall replace. I am about to swap it with another capacitor but due to my age i do not enjoy working with enclosures that house 230v (my dad is an electrician of some sorts so i am not too bad). I am willing to give my piano another try with the new capacitor but i am worried it may have only been a side problem. One thing i have noticed is this step up board does smell of the smoke that came out during my lesson.
I was hoping to look at all the components on the board to calculate the input voltage but am now finding it too be much harder than i initially thought it would be so i can hopefully test it out on my bench power supply first. I would like help to find if this is possible and am willing to do a schematic if some people can help me on one or two components as i can not find any information on them.
Firstly it is the big component on the board labeled "VS60250". I am thinking it is a coil of some sorts but i would like to know some specific specs on it. It contains 9 pins. The other component i am enquiring about is a component labeled D1863. It contains 3 pins so I am thinking it is a transistor, but cannot find many specfics on it, I found a transistor with a similar number but the packages do not look the same. On the silkscreen it is TR* where * is the component number
If it of any help the CFL needs a 1000Vrms start voltage and a 275Vrms operating voltage. A datasheet is here: https://www.beyondinfinite.com/lcd/Library/Hosidan/HLM6323.pdf
As another note I am wondering if anybody has the service manual for the PSR-6000 keyboard and if so perhaps somebody could give a link to download it if thats legal as it could help me stop wasting a lot of time figuring all this out,
Thanks, Dave
Some Pictures follow:
1
2
3
4
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