OFF ON Parallel printer interface LPT2
ON OFF Parallel printer interface LPT3
OFF OFF Disable parallel printer interface
ON ON Asynchronous interface COM1
OFF ON Asynchronous interface COM2
OFF OFF Disable asynchronous interface
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Chapter 8.9 Video Display Unit Adjustments
The video display unit adjustment (also referred to as CRT adjustment)
provides the method for performing any required video display adjustment on
your COMPAQ PORTABLE II Personal Computer. To complete the adjustment
procedure, the following equipment is required:
o All tools normally required to service a COMPAQ PORTABLE II Personal
Computer (see Preface)
o DIAGNOSTICS diskette
o Set of standard television adjustment tools
o COMPAQ PORTABLE II Personal Computer display template (PN 100686-003)
The video display adjustment procedure is arranged in a step by step outline.
Read the entire procedure carefully before starting the procedure. Complete
each step before continuing to the next step.
CRT Adjustment Procedure: