標題: sony dvp-s7000 可以點 Mod [打印本頁] 作者: dckchiu 時間: 2009-12-16 22:01 標題: sony dvp-s7000 可以點 Mod 有部 sony dvp-s7000，當年買水貨，用110V 牛。因睇唔到有區碼 DVD，放埋一邊一段時間。
剛剛想學 Mod 機，各位前輩可否教吓我呢個新新仔。謝謝！作者: kk_ho 時間: 2009-12-16 22:23 標題: Re: sony dvp-s7000 可以點 Mod Can All region code free by setting jumper / shorting the wire / re-flash the FW.
For CD, it also OK la.
Try to mod the output stage, Op-amp replacement. It is easy job for new DIY beginner.
THX Level 2 KK作者: dckchiu 時間: 2009-12-16 22:50 標題: Re: sony dvp-s7000 可以點 Mod [quote:9b15d3505a="kk_ho"]Can All region code free by
A. setting jumper / shorting the wire / re-flash the FW.
B. Try to mod the output stage, Op-amp replacement. It is easy job for new DIY beginner.
THX Level 2 KK[/quote]
Well, nearly > 20 years ago, I had built a 6502 Apple ][ computer, but now everything things seem so new to me.
I guess A. is not expensive, and for B. you said it is easy, and I think I can try.
Op-amp - I guess it is Output amplifier, so how much woudl be the cost ? How can I start that ? Can I goto your place to do it ? What would be the tutition fee ?
Thanks...作者: kk_ho 時間: 2009-12-16 23:34 標題: Re: sony dvp-s7000 可以點 Mod JBH,
We don't have any plan of modification class at 2010.
You may join it when we open
Tube amp / power amp / DAC / CD class...........
Please send your request to admin@hififever.com to check with admin.作者: dckchiu 時間: 2009-12-17 10:37
Thanks ! Any book or magazine to recommend to me, a new beginner in AV DIY before I have chance to join Mod classes ?作者: kk_ho 時間: 2009-12-17 17:49
Fresh level:
No need special EE skill, he/she need to watch and locate the components location. i.e. (need to understand the "look" of the op-amp, which one is resistor, Capacitor)
Soldering skill and Tools application.
Immediately level:
Understanding the difference grade of components, advance de-soldering skill. Some mechnical work.
Wow, after stduy on the web and learn that
Op-Amp actually is Operational amplifier and the 741 has been very popular.
Then , how should I know which Op-AMP to replace.
And how can I find out the switch settings to make it DVD region free ?
Any useful sites ? Thanks !
Going to open up the case to have a look soon.作者: kk_ho 時間: 2009-12-19 01:03
JBH,
You can goto below web for study.
www.ti.com
(Texas Instruments, their HPA [High performance analog] is major focus products.
www.analog.com
Analog device. Take a look of AD8610 and AD8620.
Finally, you can refer to below link
Opamp for everyone.
http://www.ti.com/litv/pdf/slod006b
Should you have any questions, please let me know.
KK.Ho作者: dckchiu 時間: 2009-12-19 08:47
Thanks KK.作者: dckchiu 時間: 2009-12-21 22:40 標題: Case open Wow, after opening the case, try to figure out where the two switches for the DVD Region Code, simply can't find it.
And as this is a 110V player, I am thinking about if I can MOD the power module so that I don't need to use an external AC converter .
I think it is quite danger to mod the power module without experience. I suggest you take out the audio board (the board that place upside down) and replace the opamp with a opamp socket+the opamp you like. Besides, you can also replace the cap of the audio board with Nichicon KZ series.