QB-78K0FX2-T44GB Datasheet, PDF (28/44 Pages) Renesas Technology Corp – IECUBE is a registered trademark of NEC Electronics Corporation in Japan and Germany PC/AT is a trademark of International Business Machines Corporation.

CHAPTER 2 SETUP PROCEDURE
2.5.5 Notes on mounting NQ and IC
(1) Confirm that there is no weld flash in the resin (sealant part) of the IC. If there is weld flash, remove it using a
knife or the like.
(2) Confirm that there is no weld flash breaking or bending of IC leads. In particular, confirm the planarity of IC leads.
If there is abnormality in the planarity, correct that portion.
(3) Viewing the NQ contact pins from the top, if there are foreign bodies on them, remove them using a brush or the
like.
After confirming (1) to (3), fit the IC to the NQ. Also fit the HQ.
(4) Put the supplied M2 × 6 mm screws in the 4 accessory holes of the HQ and fasten the screws in opposite corners.
At that time, use either the dedicated screw driver that is supplied or a torque driver to fasten them equally in turn
with a tightening torque of 0.054 Nm (MAX.). Since the contact is poor if tightening is too great, once you have
lightly fastened the HQ screws, tighten them again.
(5) Depending on the use environment, when starting up a device that has been left for a long time, starting it may
be difficult. In this case, loosen the screws slightly and then retighten them.
(6) If startup still is difficult after (5) above, check (1) to (3) again.
(7) Tightening the screws of the HQ too much may give rise to cracks in the molded part of the HQ (plastic part) and
bend the mold into a bowed shape, making contact poor.
(8) After soldering the NQ, do not perform washing by flux immersion or vapor.
2.6 Connecting QB-78K0FX2 to Target System
If connecting the emulation probe (QB-80-EP-01T), connect it to the QB-78K0FX2 and the target system by the
following procedure.
(a) Connection of emulation probe
Connect the emulation probe to the QB-78K0FX2.
Figure 2-5. Emulation Probe Connection Method
Insert CN1 and CN2 of the probe into
TCN1 and TCN2 of the QB-78K0FX2.
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User’s Manual U17669EJ3V0UM