IBM PC CONVERTIBLE Technical Reference page 14

Description
Error Indication
Real-time clock test: Tests the Error 0163 with icon
update and interrupt functions.
and Fl prompt.
Zeros and initializes time and
date, and sets alarm to zeros if the
clock has not been updated or if
power was lost.
Portable printer interface test:
Error 510 1 with icon
Checks the function of the adapter.
andFI prompt.
Printer/communications presence
test: Checks to determine what
printer and communications
features are attached. See Figure
1-3 on page 1-12 for additional
information.
Internal modem test: Checks the Error 110 1 or 1102
function ofthe internal modem. with icon and Fl
prompt.
Serial adapter test: Tests the serial Error 1101 or 1201
adapter portion of the IBM PC with icon and Fl
Convrtible Serial/Parallel Adapter prompt.
if it is installed.
Feature adapter ROM presence: Checksum or feature
External adapters are tested for the error.
presence of ROM. See Volume 1
for additional information about
adapters with system accessible
ROM. Links to the ROM if valid.
Figure 1-1 (Part 6 of 7). Power-on Self-Test Sequence
Power-On Self-Test (POST) 1-7