Last week i opened the Pioneer DV-373S DVD player and had a glance of what chips and other components have been used and whether there was a probability of enhancing this DVD player by modifying / replacing some components. Here are my findings,
- This DVD uses a 24 bit/ 192KHz DAC of make Burr-Brown chip nbr BB-1742.
- The output of this chip goes to the op-Amp which is a entry level Dual op-Amp - chip nbr BA4560 of SOIC package. This op-Amp can be replaced by a very high performance op-AMP from National Semiconductor LM4562MA of SOIC package for improving the performance of this player directly.
- Also noticed that the DC by-pass capacitor used after the op-AMP is 47 microfarad 16v electrolytic capacitor. This shoud be replaced by the same capacitor of Bi-polar type.
I am planning to do this replacements in a week and will let all of you posted about the end result.
Earlier i use to connect the co-axial output of this DVD player directly to the co-axial digital input of my Denon AV Receiver AVR-1604. But after i did some research on the Burr-Brown chip i came to know that this chip is 24bit/192KHz DAC and my Denon AVR is 24bi/92KHz sampling. Immediately re-connected the analogue output of the DVD player directly to the analoge input of my AV Receiver and found a tremendous improvement in the audio quality of my setup. I would always play stereo music now in the analogue mode for better response. But if i need Dolby Digital decoding anyway i will have to switch to Co-axial digital mode.
Cheers,
- This DVD uses a 24 bit/ 192KHz DAC of make Burr-Brown chip nbr BB-1742.
- The output of this chip goes to the op-Amp which is a entry level Dual op-Amp - chip nbr BA4560 of SOIC package. This op-Amp can be replaced by a very high performance op-AMP from National Semiconductor LM4562MA of SOIC package for improving the performance of this player directly.
- Also noticed that the DC by-pass capacitor used after the op-AMP is 47 microfarad 16v electrolytic capacitor. This shoud be replaced by the same capacitor of Bi-polar type.
I am planning to do this replacements in a week and will let all of you posted about the end result.
Earlier i use to connect the co-axial output of this DVD player directly to the co-axial digital input of my Denon AV Receiver AVR-1604. But after i did some research on the Burr-Brown chip i came to know that this chip is 24bit/192KHz DAC and my Denon AVR is 24bi/92KHz sampling. Immediately re-connected the analogue output of the DVD player directly to the analoge input of my AV Receiver and found a tremendous improvement in the audio quality of my setup. I would always play stereo music now in the analogue mode for better response. But if i need Dolby Digital decoding anyway i will have to switch to Co-axial digital mode.
Cheers,