Basic HTML Version
1 Beep
CPU and AudioNisual
Board Error Codes Continued ...
AudioNisual board error codes
=
AudioNisual
Board is O.K.
2 Beeps
=
S2 Failure
3
Beeps
=
S3
Failure
5
Beeps
=
85
Failure
4
Beeps
=
S4 Failure
6
Beeps
=
S6 Failure
10
Beeps
=
Audio Static RAM Failure
7
Beeps
=
S7 Failure
OPTOTHEORY
The opto receiver (Photo Transistor) should be approximately
0.1 - 0.7
volts when the opto beam is
unblocked and approximately 11 - 13 volts when the opto beam is blocked. The opto transmitter
(LED) should always be approximately 1.4 volts.
Note: The transmitter (LED) is larger than the receiver (Photo Transistor); it protrudes further from its
case.
LED Board
Transmitter
1.0- 1.1 Volts
Photo Tronsistor Board
Receiver
0.1-0.7V Unblocked
1 1-1 3V
Blocked
WHT
.Inirored Ray
Gray-XXX
Block
Gray-Yellow
Orange-XXX
1-49