Measurement-computing DBK70 Uživatelský manuál stáhnout pdf (Strana 103)

DBK70 Firmware Upgrade Instructions 909192 1056-0902, rev 5.0 3

Close-up of the PLCC Socket Locations

Replacing the Chip at U8

1. Using the PLCC extraction tool, carefully remove the old 1056-0301 chip at U8 by placing the tool’s

hooks down into the access holes on opposite corners of the socket. Squeeze the extraction tool and

pull the chip free of the socket. Discard the old chip.

2. Insert the new chip, 1056-0301, into U8 as follows:

(a) Verify correct orientation. The chip’s chamfer must align

with the chamfer on the board’s socket.

(b) Squarely center the new chip over the socket.

Replacing the Chip at U9

1. Using the PLCC extraction tool (included), carefully remove the old 1056-0300 chip at U9 by placing

the tool’s hooks down into the access holes on opposite corners of the socket. Squeeze the extraction

tool and pull the chip free of the socket. Discard the old chip.

2. Insert the new chip, 1056-0300, into U9 as follows:

(a) Verify correct orientation. The chip’s chamfer must align

with the chamfer on the board’s socket.

(b) Squarely center the new chip over the socket.

p/n 1056-0301

is located here.

p/n 1056-0300

is located here.

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Measurement-computing DBK70 Uživatelský manuál Strana 103