I have 2 days holiday yesterday, so I decided to continue my suspended hobby 😉
Picture below is the audio boards of my Toshiba DVD Player SD-2960 (most people will know this as SD-3950 or SD-3960 on America). I have modded the audio board by replacing three power supply capacitors for the D/A BB TI 1751 with ELNA Cerafine 47uF/25Volt. Two more coupling capacitors also replaced with ELNA Cerafine 100uF/16Volt. These two coupling capacitors (the two big with terrible layout) used to couple from the D/A to the op-amp (CHMC 4558).
Picture below is the audio board after the original capacitors was removed (before the ELNA Cerafine plugged in). Not a difficult thing to remove this capacitors, though I have some problem due to the hard-to-melt tin (the original tin was quite difficult to melt in this through hole PCB). So, I added some tin from my own (WBT Silver Solder) and let the tin melted together. Finally, my “tin sucker” sucked them all (I don’t know what do you call this stuff, but in my country, we call it a “tin sucker”).
Finally, the zoomed version of the D/A and the new capacitors. Poor layout there since the new capacitors (ELNA Cerafine) are quite big. If you want to know, the original capacitor is very similiar with the other black capacitors found around the Cerafine. See? Very huge difference in terms of size!
Don’t ask me the final sound quality. I’m too tired to put back the audio board inside the case. I will do it later. Anyway, I’m quite busy tomorrow. Perhaps next weekend is a good day to try 😉
naisioxerloro
November 29, 2007 00:08Hi.
Good design, who make it?
VogLodobods
October 6, 2008 04:07Hi, everybody!
I think, that this is a great forum. Very intresting and useful.
But I can’t find the search function, cause I want faster find the topics that could be intresting for me to express my opinion…
Please help me with search function on this forum!
Jimmy Auw
October 6, 2008 08:49Hi,
Search function is available on right sidebar. Just scroll down a little bit.
Thanks.
luteragzfer
November 27, 2008 02:42Mike Mossberg, I know you reading this forum, please contact me, because I can’t find your contact details.
enrinuipurA
January 22, 2009 12:23Nothing seems to be easier than seeing someone whom you can help but not helping.
I suggest we start giving it a try. Give love to the ones that need it.
God will appreciate it.
kookimebux
February 1, 2009 22:42Hello. And Bye. 🙂
GerryRord
May 28, 2009 04:28Ðто вы про кровельные материалы? в
еÑли вы про Пензу , то Ñто можно купить в покров-центр.
ВодоÑтоки можно купить там, причем даже мелким оптом.
sopoiki
January 11, 2010 20:24Oom Jimmy,
Saya sangat penasaran dengan mody ini. Pengen coba2 juga mody sederhana mirip seperti di link ini
http://johnswenson1.home.comcast.net/~johnswenson1/3950_mod/Toshiba_3950_3960_mods.html
, tapi sayang toshiba seri sd 2960 sudah nggak ada lagi dijual orang.
Pertanyaan:
1. Apa produk DVD Toshiba yang lain yang murah meriah tapi juga memakai DAC superior seperti SD-2960, atau sd 3950/60?
2. Kalau SD 590AK apa juga bagus buat di mody? Skarang (2010)dijual cuman lima ratusan doang… padahal 24bit 192 kHz juga.
3. Kalau di link di atas itu modif nya sangat simple. Ganti 2 capasitor coupling after DAC, langsung umpankan ke pre amp trus ampli. Katanya ini yang paling penting …. Jadi modifnya hemat sekali tapi sudah cukup superior.
Apa komentar Oom JA?
Terima kasih.
Jimmy Auw
January 11, 2010 22:11Hi,
1. Saya tidak pernah buka Toshiba yang lain, mungkin kalo ada yang beli bisa diintip he he he.
2. Tidak pernah coba.
3. Secara teori sudah cukup, tapi hati2 karena dengan membypass buffer internal, akan risiko kabel yang panjang akan membuat masalah. Pastikan kabel dari output DAC cukup pendek dan langsung ke amplifier. Atau berikan buffer tambahan.
Thanks.
Emilio Sturino
March 24, 2010 05:27Great. I really like the close-up pictures of the board!.
I have a problem and am hoping you can help. I have the Toshiba sd3960; the circuit board is identical to your picture. I get great video but no sound. I think one or more of the electrolytic capacitor is bad but don’t know how to find out.
Sometimes I get some sound when first turned on, but goes out in a few minutes. Any help is greatly appreciated!
Thanks
Emilio Sturino
Jimmy Auw
March 26, 2010 09:48You can use Digital MultiMeter to check your electrolytic caps.
Thanks.
george
October 21, 2010 00:14Hi, You have a lot of cool posts as I am tottaly into modding audio equipment too. However, It kills me that you never follow up on sound quality reports of your stuff. Just a thought.
Auw Jimmy
October 21, 2010 00:37Hi George,
Interesting point of view… Since audio is very subjective, it’s not useful for me to “review my own stuff”… are they good? probably… but who cares anyway about that? Doing the mods are enjoyable for everyone and sharing them is what I’m doing now. But listening the result is personal enjoyment that is hard to share (I share some though). My taste may not fit yours and vice versa.
Just like you are watching cooking show on the TV. The taste of the cook is not important (you can’t taste them anyway, it’s just on TV – you just believe if the guy on the TV says it’s tasty – but do they really tasty? no one knows). So the important is actually the way they cook, so you can repeat and try yourselves, not the cooking result itself on the TV.
Thanks.