Kramer Electronics VS-42HC - Manual (Page 29)

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Flash Memory Upgrade
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Figure 19: Device Selection Window
4. Click the button next to the name of the device and select from the list:
AT89C51RD2:
AT89C51RD2
T89C51RD2
Figure 20: Device Selection window
5. Click OK and select “Load Hex” from the File menu.