Renesas QFP-64A - Manual (Page 10)

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2.2.4 Fastening Cable Head
CAUTION
1. Use a Phillips-type screwdriver whose head matches
the screw head.
2. The tightening torque must be 0.0785 N•m 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.
Fasten the user system interface cable head to the IC socket for an FP-64A package on the user
system with the four screws (M2
x 12 mm; with four flat washers) provided. Each screw should be
tightened a little at a time, alternating between screws on opposing corners. Take special care, such
as manually securing the IC socket soldered area, to prevent the soldered IC socket from being
damaged by overtightening the screws or twisting the components.