
12-4 Configuring the Meridian 1
Checking the CPU ROM daughterboard
Standard 1.0 Modular Option EC Installation and Maintenance Guide November 1999
Checking the CPU ROM daughterboard
Introduction
To check the current ROM, load Overlay 22 and enter ROM in
response to the prompt REQ.
Note: The ROM check and replace procedure does not apply to
Systems 51C, 61C, 81, and 81C.
ROM selection
The required ROM is one of the following:
• SL-1 ST (Release 12-14) QPC717
• SL-1 ST (Release 15 or later) QPC940
• SL-1 N QPC782
• SL-1 LE QPC573
• SL-1 XL QPC599
• SL-1 XNQPC600
• SL-1 XN (Memory Enhanced) QPC601
• SL-1 RT/NT/XT QPC602
• SL-1 MSQPC662
• System 21/21A QPC940
• System 51/61/71 QPC939
If you must replace the ROM, follow the procedure described in
the next section for either single or dual CPUs.
CAUTION
Risk of equipment damage
Do not touch the other components on the
CPU pack. During removal and insertion,
carefully line up the connector and pins of
the new daughterboard with the pins and
connector on the CPU.
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