Odd behavior...I posted earlier on how my cd 54 will not play unless warmed up..tonight after a few drinks i wanted to have a look under the hood..so i powered it up with disc in place from cold and it would not read TOC...so i flipped it upside down to undo the bottom i noticed that it was reading TOC...odd..not sure why?could it be something to do with the turn table? Anyone know? thanks in advance...
Have you replaced any caps ? If this uses the Philips swing arm type RAFOC then there is a 33uf cap that is a common problem on the servo PCB under the laser.
Hi.
Mooly is correct.
As this is a first generation player with the CDM-1 and TDA1540 DAC chips, the cause of the problem is most likely to be old electrolytic capacitors.
As Mooly said, one of the common problems is a 33uf cap to be found on the board attached to the cd mechanism. These should be changed for IDENTICAL value caps as they are value sensitive.
It is also likely that the main caps on the power supply board are also in need of changing.
Remember ... if changing components, one thing at a time then test otherwise you may create a new fault and be unable to determine where it is !!
It should be a very easy fix.
Andy
.
Mooly is correct.
As this is a first generation player with the CDM-1 and TDA1540 DAC chips, the cause of the problem is most likely to be old electrolytic capacitors.
As Mooly said, one of the common problems is a 33uf cap to be found on the board attached to the cd mechanism. These should be changed for IDENTICAL value caps as they are value sensitive.
It is also likely that the main caps on the power supply board are also in need of changing.
Remember ... if changing components, one thing at a time then test otherwise you may create a new fault and be unable to determine where it is !!
It should be a very easy fix.
Andy
.
Will start with the 33uf caps...I swapped out the 2200uf and 3300uf with no change...so next tep will be the 33uf...thanks
Non polar cap
Hi, can I use in place of the 33uf polarise a 33uf non polirised e.g. nichicon muse es ( the green ones) ?
thanks
Hi, can I use in place of the 33uf polarise a 33uf non polirised e.g. nichicon muse es ( the green ones) ?
thanks
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