Need Help on ML 331 18CV8 code

[birdyman]

I have repaired water damaged Mark Levinson 331. I am stuck at faulty 18CV8 chip on VSMB board. 18CV8 was manufactured by ICT and still has replacements from overseas. I am struggling to replace it with ATF16V8 chip (20 pin dip). Does someone have code( chip read out) for 18CV8? Or terminal functions of 18CV8 chip?

Thanks

 

[birdyman]

I finally received Minipro Universal programmer. It read 18cv8 chip. I made copy of chip using 16v8b chip on Minipro. Copy did not work ( it turns on every thing by itself). Anyone made copy of 18cv8 and willing to share??

 

[tonimxp]

I finally received Minipro Universal programmer. It read 18cv8 chip. I made copy of chip using 16v8b chip on Minipro. Copy did not work ( it turns on every thing by itself). Anyone made copy of 18cv8 and willing to share??

Hi! Do you have solved?