Canon AS-100M Field Service Manual page 63

2. Brightness adjustment
Approximately 15 minutes after power supply is turned on
MAIN UNIT and with brightness control knob on left front
of MAIN UNIT panel, adjust brightness of CRT display.
3. Speaker output adjustment
Remove the rear cover of MAIN UNIT (see paragraph 3.1 of
Chapter 3).
then adjust speaker tone with entering keys by the speaker
output control knob on I/O-CONT-P.C.B. as In Fig. 3.1.4.
4.2.5 Execution of test program and confirmation
Refer to "TEST PROGRAM OPERATIONAL MANUAL" separately
provided for details regarding the execution of a test
program.
Remove system media after OS is loaded in,
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