Re: DX7II-D white noise problem
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Hello
I cannot tell what is the cause of this behaviour, but it looks
like there is an extremely high feedback on the operator 2 (I
think it is operator 2, which allows feedback - I don't own a
Mk2). At least your example with the tubular bells in the
beginning of the video shows, that the sound becomes tonal in the
release phase. I'd check to which value the feedback is set.
Florian
Am 26.05.24 um 16:37 schrieb csabi@...:
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Dear Friends
I would like to ask for your help.
I have recently purchased a faulty DX7II-D model, which is
producing the problem you can hear in the YouTube video below.?
The battery is 2.9V, I upgraded the ROM to v.:1.9 firmware, I
don't have a cartridge for it, so I loaded the INTERNAL memory
contents via MIDI, but unfortunately no change. What is worrying
is that the noise also comes in test mode (as shown in the
video) instead of the 880 Hz test tone. The power supply
voltages are fine. Do you think this is the kind of error that
could be produced by a PCM54 DAC failure? I'm afraid not. It is
reacting to the pitch bender, this seems more like a structural
fault, which unfortunately could probably be a fault in the EGM
or OPS chips. What is your opinion?
Thanks in advance!
Greetings from Hungary!
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