GE 800 NOTCH, NOTCH, 2.12CBI

5.3.4.Replace the EPROM from a Zero Insertion Force Socket.

5.3.4.1.There is a small brass lever on the socket to secure the EPROM chip. It should be in the locked position (end of the lever close to the PC board).

5.3.4.2.Prior to removing the existing EPROM chip, open the protected packaging and place the upgrade EPROM chip on the packaging.

5.3.4.3.To remove the existing chip, hold the EPROM chip with one hand and unlock the socket with the other by pushing the end of the lever away from the PC board. Pull the existing EPROM chip straight out of the socket, note NOTCH position, and place it on the protected packaging that surrounded the upgrade EPROM chip.

5.3.4.4.To install the upgrade 2.12CBI EPROM chip in the socket, locate the NOTCH on the chip and ensure that the notch is facing down. Align the pins to the socket openings and insert the EPROM chip in the socket. While pressing on the EPROM chip push the locking lever to the locked position (toward the PC board) to secure the EPROM chip in place.

CAUTION:

Be sure the NOTCH of the EPROM chip is toward the bottom of the analyzer and all the pins are engaged into the socket. Improper or forced installation will cause irreversible damage to the chip.

5.3.5.Replace the EPROM Chip from a Low Profile type Socket.

5.3.5.1.The EPROM socket consists of two parts, the main socket that is soldered to the PC board and the keyed carrier for holding the EPROM chip refer to lower left corner of Figure Six. Note: The keyed carrier will only go in the socket in one direction.

5.3.5.2.Prior to removing the existing EPROM chip, open the protected packaging and place the new EPROM chip on the packaging.

5.3.5.3.To remove the existing chip, place the screwdriver at a right angle on the upper tab of the socket. Once carrier is pried away from the socket, slide screwdriver under the carrier and rock the chip and carrier by applying force to the top with your finger and then with the screwdriver along the length of the carrier. Pull the chip and carrier from the socket, see lower right corner of Figure Six. Be sure to pull the chip out straight so as not to damage the EPROM chip pins.

5.3.5.4.Place the chip and the carrier on the protected packaging that contained the upgrade chip.

5.3.5.5.To install the upgrade EPROM chip into the carrier, note the location of the NOTCH of the existing chip and remove it from the carrier. Replace it with the upgrade chip, ensuring that the orientation of the NOTCH is the same. If the chip falls from the

GE Analytical Instruments, Inc. ♥2005H	Page 6 of 16	DIN 30001 Rev. E
		TOC,FLOW SWITCH UPGRADE 2.12CBI