dckchiu 發表於 2009-12-16 22:01:51

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!

kk_ho 發表於 2009-12-16 22:23:33

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

dckchiu 發表於 2009-12-16 22:50:13

Re: sony dvp-s7000 可以點 Mod

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

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...

kk_ho 發表於 2009-12-16 23:34:55

Re: sony dvp-s7000 可以點 Mod

JBH,

We don't have any plan ofmodification 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.

dckchiu 發表於 2009-12-17 10:37:28

Thanks ! Any book or magazine to recommend to me, a new beginner in AV DIY before I have chance to join Mod classes ?

kk_ho 發表於 2009-12-17 17:49:18

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.

Advance level:
Circuit design, modification. Improvement. Debug. Function add on.

dckchiu 發表於 2009-12-17 22:19:35

Thanks !

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.

kk_ho 發表於 2009-12-19 01:03:37

JBH,

You can goto below web for study.

www.ti.com   
(Texas Instruments, their HPA 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

dckchiu 發表於 2009-12-19 08:47:48

Thanks KK.

dckchiu 發表於 2009-12-21 22:40:30

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 .

Would like to have senior input.

Thanks

geneltd 發表於 2010-8-24 21:12:56

回復 10# dckchiu


    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.
頁: [1]
查看完整版本: sony dvp-s7000 可以點 Mod