QB-78K0FX2-T44GB Datasheet, PDF (27/44 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
2.5.2 Mounting YQ on NQ
(1) After confirming that there are no broken or bent YQ contact pins, fit the YQ in the NQ and fasten the screw. If
repeatedly inserting and removing, be sure to inspect the YQ pins before fitting. If pins are bent, correct them
using something thin and flat such as the edge of a knife.
(2) Accessory holes are needed in prescribed positions in 4 places in the board for connecting the YQ. Fasten the
YQ to the NQ on the user board using the supplied M2 × 10 mm screws. The thickness of a board corresponding
to these screws is 1.0 to 2.0 mm. Fasten the screws equally in the four corners using a No. 1 or No. 0 precision
(+) driver or torque driver. The tightening torque of the screws is 0.054 Nm (MAX.). Too great tightening causes
bad connections.
Screws for fitting to the NQ (M2 × 10 mm/4) are included with the YQ.
2.5.3 Plugging EA into YQ
Match the No. 1 pin position of the YQ or YS (C cuts match in both) to the No. 1 pin position of the EA and plug in.
• When plugging or unplugging, press on the NQ, YQ, and YS with a finger so that there is no force on the NQ.
• When plugging or unplugging, be careful of the direction of rocking.
As a tool when unplugging, insert some kind of thin non-conductive material such as a wooden stick between the
YQ (YS) and EA and rock while slowly unplugging. Be careful since the connector will be damaged if this is done
in the wrong direction.
2.5.4 Notes on handling NQ, YQ, and YS
(1) When taking the NQ from the box, press down on the body and take out the sponge first.
(2) Since the pins of the YQ are thin and easily bent, be careful. When inserting it in the NQ, confirm that there are
no bent pins.
(3) When screwing a YQ soldered to a board to the NQ, fasten the screws in four places in turn using a No. 0 or No.
1 Phillips precision driver or torque driver after tentatively tightening them. Fix the torque at 0.054 Nm (MAX.).
If just one place is overtightened, it may cause poor contact. Moreover, a board being connected to the YQ must
have accessory holes in prescribed positions (4 places: φ2.3 mm or φ3.3 mm). The φ3.8 mm or φ4.3 mm that is
the screw head size is an area where wiring is prohibited.
(4) In YQ and YS removal, since there is a danger of YQ pins being bent or broken when prying and rocking, remove
them gradually using a screwdriver from four directions. Moreover, to connect and use the YQ and YS, screw
the YQ to the NQ according to the YQGUIDE (sold separately) using a 2.3 mm screwdriver and then connect it to
the YS. Fix the torque at 0.054 Nm (MAX.). If even one place is overtightened, it may cause poor contact.
(5) For the NQ, YQ, and YS, since there is a danger that washing fluid on the structure will remain in the connector,
do not perform washing.
(6) NQ, IC, and YQ cannot be used in combination.
(7) An NQ/YQ system cannot be used in an environment of vibrations or shocks.
(8) It is assumed that this product will be used in system development and evaluation. Moreover, when used in
Japan, Electrical Appliance and Material Control Law and electromagnetic disturbance countermeasures have
not been applied.
(9) Since there are rare cases of shape change if the box is left for a long time in a place where it is 50°C or higher,
for safekeeping, store it in a place where it is no higher than 40°C and direct sunlight does not hit it.
(10) For details about handling the NQ, YQ, and YS, see the NQPACK series technical materials at the website of
Tokyo Eletech Corporation.
Tokyo Eletech Corporation website: http://www.tetc.co.jp/
User’s Manual U17669EJ3V0UM
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