Philips CD620 DRAM Chip ID help please!

[James1]

Hi folks,

I have a Philips CD620 which has (possibly) the same fault as Graham's Orelle described in this thread:

http://www.diyaudio.com/forums/digital-source/171326-cd-player-distortion-laser.html

Unfortunately, I only have a CD630 service manual, although the boards do appear to be similar.

However, the DRAM chip has a the following printed on it: "8928 USA" then next line "MT 4416L-12".

Is this DRAM equivalent to an MN4264P that is listed in the CD630 manual? I have obtained one, and they do appear to be the same size. Googling unfortunately produces no answers.

Thanks for any help!

James

 

[poynton]

NO, it is a 4416-12

Not the same.


http://pdf1.alldatasheet.com/datasheet-pdf/view/103706/TI/TMS4416.html





Andy


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[poynton]

I have just checked my manuals for the CD610 and CD630

Both list the DRAM chip as UPC 41416-20


Check the print on your chip!


Andy


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