Yamaha cx5m memory

By 8bitheaven

Supporter (2)

8bitheaven의 아바타

15-04-2020, 09:08

Hi,

I recently got a Nonworking Yamaha CX5M. The problem is that three ramchips get burning hot after a few seconds that the msx is turned on.

The ramchips have two numbers:

83390D254
D416C-3

I looked on the internet and can find D416C-3 ramchips for sale. Does the first number, 83390D254, need to be the same or can i get any D416C-3 chip?

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By Wierzbowsky

Guardian (3568)

Wierzbowsky의 아바타

15-04-2020, 10:39

No, you just need any 4116 DRAM chip that needs +5, -5 and +12v. But before replacing the chips, make sure that all 3 voltages are present.

By 8bitheaven

Supporter (2)

8bitheaven의 아바타

15-04-2020, 10:50

ok, thx for the tip!