I have a super problem: my Marantz CD65 mkII, while adjusting the focus of the lens (trimmer 22k), has begun to smell of burning on the side of the trimmer (with a light smoke), but I did not understand where it came from. I changed the 22k trimmer but the result has not changed.
Now the lens is locked in one position (upper bound) and the laser does not emit more "light" ...
I thought I was a "burning" of the IC TDA5709 or TDA5708
Any ideas?
HELP!!! Thank you!
PCB :
Now the lens is locked in one position (upper bound) and the laser does not emit more "light" ...
I thought I was a "burning" of the IC TDA5709 or TDA5708
Any ideas?
HELP!!! Thank you!
PCB :
An externally hosted image should be here but it was not working when we last tested it.
Last edited:
I would not be wrong but I checked several times and all the resistance around the TCA0372DP2 have power equal to zero volts.
I also noticed that the heat TCA0372DP2 lot but I think it's normal.
I think the problem is in that area ...
I forgot to tell you that the lens is the philips CDM4/19.
I also noticed that the heat TCA0372DP2 lot but I think it's normal.
I think the problem is in that area ...
I forgot to tell you that the lens is the philips CDM4/19.
Almost all the capacitors have become short-circuit (1ohm more or less). In the image I have marked almost all
The tension of the IC 6526 (Motorola) is less than 1 volt. Now, the lens does not receive any signal, as off. The IC 6526 does not heat anymore so I assume it's broken.
Now I try to replace the IC 6526 and all resistances damaged.
Uploaded with ImageShack.us
The tension of the IC 6526 (Motorola) is less than 1 volt. Now, the lens does not receive any signal, as off. The IC 6526 does not heat anymore so I assume it's broken.
Now I try to replace the IC 6526 and all resistances damaged.
An externally hosted image should be here but it was not working when we last tested it.
Uploaded with ImageShack.us
Sorry, I was wrong to write, of course, are resistors.
And Do you have same conclusion ???
You solve the problem?
Ciao
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