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Audio equipment

mhc-s2000 diagram request

luis lezamatecnico
hace 6 años
hace 6 años
good colleagues I have this sony model mhc-s2000 with the bad sound card specifically it comes with the smd power mosfet burned which would imply changing the entire amplification card a very expensive repair then ps I thought about the option of putting together an amplifier about 100wats rms to transistors and adapt it but my doubt is that in a post I read that the audio signal of these equipment is digital x what would not be captured with the audio input in of a common amplifier is this true or I was deceived and by On the other hand, if any one has x, there is the diagram of this team.
jomi
jomi
38.143
hace 6 años

Confirm the model.
Won't it be HCD-SH2000?

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luis lezamatecnico
hace 6 años

that's right colleague

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usuario123pc
usuario123pc
1.096
hace 6 años

Determine with an external amplifier and a music track with your sony, on the gate leg of the supposed MOSFET. If it gives you audio, it is stable and it sounds good, you can make your adaptation without any problem. Regards.

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luis lezamatecnico
hace 6 años

Dear colleague, my problem is that I already removed the 8 mosfet smd of power and as I see erroneously as the equipment continues to protect itself, protect it two seconds after turning it on.

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usuario123pc
usuario123pc
1.096
hace 6 años

Study the manual on all the protect lines and their respective intergrades. Then check all components such as resistors, capacitors, etc. Regards

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jomi
jomi
38.143
hace 6 años
hace 6 años
I send you the diagram you request HCD-SH2000 Diagram
luis lezamatecnico
hace 6 años

thank you dear jomi I already downloaded the diagram that you sent me exactly that is what I commented to you that the problem with this equipment is that when connecting it the demo is activated and until there is everything ok but when turning it on in 2 seconds disec protected this does it even though in another workshop he was removed all 8 mosfet of power crellendo that it was problems of short departures but still continues to activate the protection any idea that may be causing this protection you would like it friend jomi

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luis lezamatecnico
hace 6 años

if I could disconnect the amplification card completely x it would have been a save but it is not possible since in this card there is also the pre as well as the power supply of the main control

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EVELIO RIOS H
hace 6 años
hace 6 años
Luis, what is the voltage on pins 61 and 71 of the integrated IC100 (micro)?
luis lezamatecnico
hace 6 años

don evelio on those pins there are 3.3 volts in stby

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luis lezamatecnico
hace 6 años

and once it enters prptec there are also 3.3 volts

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EVELIO RIOS H
hace 6 años

Luis then do these steps (they are from the service manual):
1. While displaying the PROTECT message on the display.
2. Press the PLAY / PAUSE and STOP buttons simultaneously.
3. A message should appear on the display.
These are the possible messages:
AMPLIFIER
MTK POWER
POWER SUPPLY
FANBLOCK

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luis lezamatecnico
hace 6 años

ok buddy thank you very much excuse me for the delay tube I will try some problems and I will tell you

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