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66103A-08A
SPECIAL NOTE:
When a 6610XA comes in for calibration or repair and the instrument has a serial number with in
the range shown above the socket may need to be replaced?
To identify if the socket is defective see Figure 2 below for specific details.
SPECIAL REPAIR NOTE!
(Circuit Reference “U001”).
The 16-Bit processor
p/n1821-1479
should only be replaced if the package is cracked, broken or the pins are bent or
broken during the modification.
Remove the 16-Bit processor
p/n1821-1479
from the socket before the 68 pin PLCC socket p/n 1200-1274 is
replaced.
The 16-Bit processor package
p/n1821-1479
must be inspected for
cracked bent or broken pins
before it is reinstalled
in the NEW socket.
It is recommended that an authorized technician or operator that has been trained to solder delicate components and
multi layer printed circuit board assemblies remove and replace the 68 pin PLCC socket
p/n
1200-1274.
The
PCA-TSTD, PWRMESH p/n
6610X-61022
should only be replaced if the traces on the printed circuit board are
damaged during the removal of the
68 Pin PLCC
socket
p/n
1200-1274
(Circuit Reference “U001”).
It is very unlikely that the PCA-Tested assembly p/n
6610X-61022
will need to be replaced if
the 68 pin PLCC
socket
p/n
1200-1274
is removed and replace with care
.
Situation:
When the 16-Bit processor
p/n1821-1474
is installed in the 68 pin PLCC
SOCKE
T
P/N 1200-1274
“U001” if there is not a gas tight connection between the processer pins and the socket pins an
intermittent connection will occur.
The pin connections may not be reliable. Over time the pins may become intermittent which will cause
the instrument not to communicate or not complete self test.
IMPORTANT
Simply removing the 16-Bit processor
p/n 1821-1474 and reinstalling it will not insure a gas tight connection
or guarantee that the instrument will be reliable. To insure reliability the socket must be removed and replaced.
Figure 1 will help to identify the
68-PIN PLCC SOCKET location -
P/N 1200-1274 (Circuit Reference
“U001”)
This picture shows the required tool
used to remove the processor
Figure 1