Dear all
I've modified my philips cd104 to NOS mode
It works normally at first
But after two hours the sound sounds twittered and noisy.
Here are three pic attached
With playing the testing cd I made that produce continuous 1k wave
The first two picture are from left and right from cd104 after the op I/V😕
The last one is the normal result by my cd 304mk2 .
Thx!!
I've modified my philips cd104 to NOS mode
It works normally at first
But after two hours the sound sounds twittered and noisy.
Here are three pic attached
With playing the testing cd I made that produce continuous 1k wave
The first two picture are from left and right from cd104 after the op I/V😕
The last one is the normal result by my cd 304mk2 .
Thx!!
I only use the freezer to test the oscillation of the IC before 🙂
Don’t know the methods to debug the failure of pcb
Don’t know the methods to debug the failure of pcb
I've seen similar waveform before. It was due to the wrong bit length setting from the source, e.g. input 24bits stream into a 16bit DAC.
Sorry
Forget to mention that if replace the decorder PCB
Trouble fixed so the problems might be in the decoder board.
Forget to mention that if replace the decorder PCB
Trouble fixed so the problems might be in the decoder board.
here is the wave form from saa7000 PIN14 CLCF and connect to TDA1540 PIN28
I can count it's 14bit
But.....should it be a square wave?
I can count it's 14bit
But.....should it be a square wave?
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