Mitsubishi Electric APRICOT LS340, Руководство пользователя, Страница: 97 / 116

T r o u b l e s h o o t i n g
8/4 APRICOT LS/VS340 OWNER’S HANDBOOK
Beep codes
The computer uses special audio beep codes to signal certain
hardware faults. If you hear a beep code which is not accompanied
by a POST error message, call your supplier or authorised
maintainer.
Beeps Meaning
No beeps If no beeps are heard at all the speaker may be
disconnected or there may be a speaker circuitry fault.
One short beep This is expected. It marks the completion of POST with
no functional errors found. (You will also get a single
beep if you press an invalid key for a power-on
password.)
Two short beeps Indicates and draws your attention to an error during
POST. This should be accompanied by an error
message.
Three short beeps System memory error, normally accompanied by code
201. Beeps are used when the video cannot display the
code.
Continuous beeps Could indicate a serious failure of the system
motherboard, or a failure of the speaker circuitry.
Repeating short
beeps Usually indicative of a keyboard key stuck down, but
may be due to the keyboard interface failing.
One long and
one short beep POST has detected an error on the video adapter in the
system. There may be no display on the screen.
One long and
two short beeps This means that either the video system is faulty, or that
a video I/O adapter ROM is not readable.
Two long and
two short beeps The video subsystem cannot be supported by the main
system POST. This can occur when the video subsystem
is replaced or changed.