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5. Mounting Mass-production MCUs
I Mounting
After mounting a mass production MCU on the user system, use the supplied HQPACK, IC socket
cover.
1. To mount a mass production MCU on the user system, match the index mark (L) on the
NQPACK mounted on the user system with the index mark (G) on the mass-produced MCU.
2. Confirm that the mass production MCU is correctly mounted on the NQPACK. Next, insert
the HQPACK into a NQPACK matching the notch of HQPACK to that of NQPACK (see
Figure 5).
The pin of HQPACK is thin and easy to bend. Insert NQPACK after confirm that the pin of
HQPACK is not bent
3. Insert each HQPACK screw for securing in each of four tapped holes on the socket cover, and
then first tighten the screws in opposing corners followed by the two remaining screws.
To tighten the screws, use the special screwdriver supplied with the NQPACK to finally
tighten the four screws in sequence. Tightening the screws too tight might result in a defective
contact.
User system
I Disconnection
To remove the HQPACK, remove all four screws, and pull out the header vertically.
6
Figure 5 Mounting a mass-produced MCU
Header board
screws for securing
HQPACK
Mass-produced MCU
NQPACK
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