my denon dvd-3910 audio circuit diy
It's my project rebuild
The DENON DVD 3910
First stage
reconstruction of the digital to analog audio circuit -Finish 🙂
Step Two
Reconstruction of the PSU
Step three
MASTER CLOCK replacement
I hope it will help people who have the 3910
everything in the internet does not guide step by step exactly!!
All companies just trying to sell a device that has been mod
It's my project rebuild
The DENON DVD 3910
First stage
reconstruction of the digital to analog audio circuit -Finish 🙂
Step Two
Reconstruction of the PSU
Step three
MASTER CLOCK replacement
I hope it will help people who have the 3910
everything in the internet does not guide step by step exactly!!
All companies just trying to sell a device that has been mod
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Does it make sense after I read the diagram of the denon dvd 3910 audio Circuit
I find this circle should replace 10 OPAMPS
And 627 is not a dual amplifier
I put OPAMPS 8620
Question
Is this circle I have to replace all the 10?
I find this circle should replace 10 OPAMPS
And 627 is not a dual amplifier
I put OPAMPS 8620
Question
Is this circle I have to replace all the 10?
Correct me if I´m wrong but if you only use Front channels you "only" change 8,
And yes the opa627 is a single opamp.
8620 you can use.
And yes the opa627 is a single opamp.
8620 you can use.
By drawing must replace 6 op-amps coming out from the to processor 1796
And another 4 down coming out of the second processor 1796
I hope replacing the op amps to 8620
Will make a difference to the sound 🙂
And another 4 down coming out of the second processor 1796
I hope replacing the op amps to 8620
Will make a difference to the sound 🙂
Where do you see in the circuit ?
its begin ic 301 an and ic 310
its begin ic 301 an and ic 310
Attachments
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I understood by drawing IC311 -1796 BURR BRAWN
IC301 IC302 IC303 IC304 IC305 IC306
ind the secand IC312 -1796 BURR BRAWN
IC307 IC308 IC309 IC310
So how has 8 ????
In your opinion
what the ic i need to change from 301 to 310 ?
IC301 IC302 IC303 IC304 IC305 IC306
ind the secand IC312 -1796 BURR BRAWN
IC307 IC308 IC309 IC310
So how has 8 ????
In your opinion
what the ic i need to change from 301 to 310 ?
What about the OPAMPS
IC301 IC302 IC303 IC304 IC305 IC306
Do you think they not need to replace ?
(I know that 2068D is a dual OPAMPS )
IC301 IC302 IC303 IC304 IC305 IC306
Do you think they not need to replace ?
(I know that 2068D is a dual OPAMPS )
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They are for the rear channels,I don´t know if you are going to use them,then maybe you can change them.it´s up to you.🙂
Are you sure I know all the circuit from 301 to 310 only addresses stereo
There are still 8 other opamps in defrent circuit
The main system unit also contains the audio circuitry for the centre, subwoofer and surround channels, based on two Texas Instruments/Burr Brown PCM1796 chips (each chip operating in stereo or dual channel mode), eight 2068D op amp chips plus an assortment of fairly high quality capacitors. I also noticed two oscillators, operating at 24.576MHz and 18.75MHz.
On top of this board, completely enclosed by metal shielding to protect the audio circuits, is a separate board for the FireWire interface. The design is based on a Bridgeco L5A9625 processor and is separately clocked using 22.579MHz and 24.576MHz oscillators.
The third board stacked topmost is a dedicated board for the audio front left/right channels. Here we find another two PCM1796 plus no less than ten 2068D op amps and accompanying capacitors. The Denon literature implies that one PCM1796 is used for the dedicated stereo left/right outputs (containing a downmixed signal for multi-channel sources) and the other is used for the front left/right channels forming part of the analogue 5.1 outputs.
There are still 8 other opamps in defrent circuit
The main system unit also contains the audio circuitry for the centre, subwoofer and surround channels, based on two Texas Instruments/Burr Brown PCM1796 chips (each chip operating in stereo or dual channel mode), eight 2068D op amp chips plus an assortment of fairly high quality capacitors. I also noticed two oscillators, operating at 24.576MHz and 18.75MHz.
On top of this board, completely enclosed by metal shielding to protect the audio circuits, is a separate board for the FireWire interface. The design is based on a Bridgeco L5A9625 processor and is separately clocked using 22.579MHz and 24.576MHz oscillators.
The third board stacked topmost is a dedicated board for the audio front left/right channels. Here we find another two PCM1796 plus no less than ten 2068D op amps and accompanying capacitors. The Denon literature implies that one PCM1796 is used for the dedicated stereo left/right outputs (containing a downmixed signal for multi-channel sources) and the other is used for the front left/right channels forming part of the analogue 5.1 outputs.
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the circuit for rear channels und canter
diagram 7 on the service manual
2 burr brawn 1796( IC221-IC222) and 8 op amps 2068d
IC223 IC224 IC227 IC228
IC225 IC226 IC229 IC230
diagram 7 on the service manual
2 burr brawn 1796( IC221-IC222) and 8 op amps 2068d
IC223 IC224 IC227 IC228
IC225 IC226 IC229 IC230
Attachments
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I would think where it says FL and FR is the stereo output,the other one says MIX.(the one above in the schema)
I have not changed these opamps on my DVD3910,so I am not absolutely sure.
I have not changed these opamps on my DVD3910,so I am not absolutely sure.
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