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！

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

[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...

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.

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

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.

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.

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

Thanks KK.

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

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.