raymond Y wrote in news:4eaacb79-bc98-402e-ae57- snipped-for-privacy@r38g2000yqn.googlegroups.com:
Try bright diffuse light at a shallow angle, and dab a smear of white spirit or paraffin on the top of the IC, and use a strong magnifier. It doesn't always work, it depends how thoroughly the numbers were ground off.
Manufacturer: Irradiant Model Number: DMX DIM 12 PRO Year: Price: $900.00
12 CHANNEL DMX DIMMER PACK Microprocessor control Separate DMX addressing for each channel 12 chase programs 1-12, DMX Hold, Analog can be selectable in the event of DMX failure Phase correction activates linear dimming (0-100%) Control curve can be selectable from Linear/Switch/Square Analog input Short circuit protection for each channel with integral 10A circuit breakers LCD menu system Electronic protection against over temperature Non-Volatile
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