Sharp LC-32SV21L Service Manual page 35

Step5. When the tool displays "NG" in the yellow blank, which represent writing failly. Please check the whether the connection of tool and cables is nomal
and retry. Another way is to change a new ISP board and retry.
Step6. Write HDMI EDID.
1. Connection for writing HDMI EDID.
Connect to PC
USB port by USB
cable.
2008-03-14
Connect to one of TV HDMI port by DVI to
HDMI cable.
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LC-32SV21L&LC-42SV31L