Chasing the Sony CX20084 speed chip for D6C walkman

Be careful, There are fakes out there, make sure you have a return policy.

 

Not sure if I posted on an earlier thread but
my techie friend made a test rig patched into a junk DDII bought for parts. We used the CX20084 from that to repair a D6C but the test rig is very useful to test IC's that claim to be compatible with the CX20084. My strip of 6 referred to earlier work so there were some around several years ago that are compatible with the genuine ones.
Otherwise your best option is to buy a junk DDII as a donor but these are rare too.
It's another reason I prefer the D6 to the D6C. Sure you've got hybrid modules that can and do fail causing the speed to accelerate but at least these modules can be disassembled and a dud transistor replaced on them. Can't do that with the CX20084 dedicated IC unfortunately.

 

Assuming the chip being tested won't damage the tester DDII.

 

Two eBay sellers located in China are claiming to have the genuine Sony chip, I messaged both and they claimed to have the genuine Sony one if they are telling the truth, The price however is steep, After taxes and shipping it's over $100:
https://www.ebay.com/itm/278354855832
https://www.ebay.com/itm/168672893144