R0E572167CFK10E Datasheet, PDF (26/54 Pages) Renesas Technology Corp – Microcomputer Development Environment System

Section 3 Connection Procedures
3.1.2 Assembling the IC Socket
CAUTION
1. Use a standard screwdriver whose head matches the
screw head.
2. The tightening torque must be 0.054 Nom or less. If the
applied torque cannot be accurately measured, stop
tightening when the force required to turn the screw
becomes significantly greater than that needed when first
tightening. If a screw is tightened too much, the screw
head may break or an IC socket contact error may be
caused by a crack in the IC socket solder.
3. If the emulator does not operate correctly, cracks might
have occurred in the solder. Check conduction with a
tester and re-solder the IC socket if necessary.
Use the four screws for ICE connection (YQGUIDE-S1) to affix the cover for ICE connection
(YQPACK176SD) to the IC socket (NQPACK176SD-ND) for the PLQP0176KB-A package on
the user system. When securing the screws, tighten each a little at a time, alternating between the
screws in opposing corners. Take special care, such as manually holding the soldered portion of
the IC socket in place, to prevent the application of twisting force by overtightening the screws
etc.
Rev. 1.00 Jul. 03, 2009 Page 8 of 32
REJ10J2025-0100