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Fujitsu LQFP-176P Operation Manual page 11

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6. Mounting a Mass Production MCU
Use the supplied HQPACK to mount a mass production MCU on the user system.
■ Mounting
1. Align the index mark on the mass production MCU (●) with the index mark on the NQPACK
2. Check that the mass production MCU is correctly inserted into the NQPACK, and then align the
3. Insert the four screws for attaching the HQPACK into the four screw holes in the top of the HQ-
■ Disconnecting
To remove the HQPACK, first remove the four screws and then lift the HQPACK vertically up and
off of the NQPACK.
mounted on the user system (▲), and then insert the mass production MCU.
index marks on the HQPACK and NQPACK (the corner with an angular cutout) and insert (see
Figure 6).
As the HQPACK pins are thin and easily bent, check that the HQPACK pins are kept straight
when inserting into the NQPACK.
PACK and tighten the diagonally opposite screws in turn.
Use the dedicated screwdriver supplied with the NQPACK to tighten the screws equally. Take
care not to over-tighten as this may cause a bad connection.
User system
Figure 6 Mounting a mass production MCU model
HQPACK
attachment screws
HQPACK
Mass production MCU
NQPACK
7

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Mb2198-703-e