“9224 EACG is the 'new style' post 1990 yamaha datecode: 9224 = 1992 week 24, EACG = lotcode EAC, revision G”
Package
Top:
YAMAHA JAPAN YM2151 9224 EACG
Die
Label:
2151
Not cleanly decapped (needed more time due to unusually large die), resulted in minor damage and dirty image
Map
- Original pr0nscope w/ MU800
- Single (12151×9724, 40.369MiB)
- New pr0nscope w/ USB3
- Seeing upper right of image is missing (some aperture is occluding view?)
- Very slight. W/ stitching its hard to see in final images since it is in overlap area between adjacent images
- It doesn't show up too badly in pictures, but looked really bad last night
- I was unable to significantly change it (better or worse) despite adjusting many things
- Using ergo head
mz_mit20x2-3
- IP
- Switch back to trinoc head
- Occlusion appears to be gone
- Re-calibrate color, turn down brightness
- Single (31602×25300, 200.391MiB)
- Single (31602×25300, 210.213MiB)
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