Panel Retention Screws - Honeywell Vibrex 2000 User Manual

Alternate Replacement Procedure -
user finds the previous procedures awkward or difficult, the user
may use the following EPROM chip replacement procedure:
1. Remove the battery end plate (15), as explained in the
2. Remove the two nuts holding the serial connector to the
3. Remove the EPROM chip (U20) from the EPROM
4. Insert the new EPROM chip into the EPROM socket so
CAUTION: Take care not to bend the pins on the EPROM
when pushing the chip in.
5. Make sure the EPROM chip pins align with the EPROM
6. Reassemble the Vibrex unit in the reverse order of
7. Switch the unit on and verify a successful power-up
6.3.3
The connector and battery end plates are both held in place on
the Vibrex unit chassis with four 4-40 black, anodized stainless
steel screws (03). If the screws are cross-threaded or stripped for
any reason, the user may fix the chassis by either

Threading the damaged hole to a deeper depth, using a 4-40
semitaper tap and a longer 4-40 screw
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previous set of procedures (steps 1 through 4).
connector end plate (4).
socket in the main PCB by gently prying it up, first at
one end then the other until the EPROM is clear of the
socket.
the index notch in the chip aligns with the notch printed
for "U20" on the main PCB (14).
connector sockets before pressing the chip into the
socket.
disassembly.
operation.

Panel Retention Screws

Chapter 6 – Maintenance
If, for any reason, the
13841 Rev A
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