Troubleshooting & flashing led’s – Burst Electronics MCG-3 User Manual
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MCG-3 Color Micro Character Generator
TROUBLESHOOTING & FLASHING LED’s:
Your MCG-3 was designed to be reliable and easy to operate, and
features RAM Memory Error Detection. If an error in the battery
backed RAM memory should occur, (may be caused by the internal
battery being run down after a loss of AC power or by a glitch on the
AC power line) the
POWER
(green) LED will flash rapidly indicating
the error.
To recover from a flashing
POWER
LED condition issue a M
M
M
M
MA
A
A
A
AST
ST
ST
ST
STE
E
E
E
ER
R
R
R
R
R
R
R
R
RE
E
E
E
ES
S
S
S
SET
ET
ET
ET
ET from the U
U
U
U
UT
T
T
T
TIIIIILI
LI
LI
LI
LIT
T
T
T
TY M
Y M
Y M
Y M
Y ME
E
E
E
EN
N
N
N
NU
U
U
U
U.
If the error was detected on power up, the video screen will be blanked
(so that possible garbage won’t be displayed). Pressing the
MENU
button on the MCG-3 will automatically bring you to the M
M
M
M
MA
A
A
A
AST
ST
ST
ST
STE
E
E
E
ER
R
R
R
R
R
R
R
R
RE
E
E
E
ES
S
S
S
SET
ET
ET
ET
ET selection on the U
U
U
U
UT
T
T
T
TIIIIILI
LI
LI
LI
LIT
T
T
T
TY M
Y M
Y M
Y M
Y ME
E
E
E
EN
N
N
N
NU
U
U
U
U.
The M
M
M
M
MA
A
A
A
AST
ST
ST
ST
STE
E
E
E
ER R
R R
R R
R R
R RE
E
E
E
ES
S
S
S
SET
ET
ET
ET
ET function is available from remote control, and a
flashing
POWER
LED condition is not detectable by remote control.
The reason for this is that the serial baud rate information is stored in
battery backed RAM, if the RAM contents have an error (the RAM
scrambled) then the baud information is likely to be wrong, in which
case serial communication would not be possible.
If your MCG-3 should not function as you think that it should, try
switching the power off and on again. Also you might try a M
M
M
M
MA
A
A
A
AST
ST
ST
ST
STE
E
E
E
ER
R
R
R
R
R
R
R
R
RE
E
E
E
ES
S
S
S
SET
ET
ET
ET
ET; however, be warned that character sizes, baud rate and other
information will be reset. (See the section
NOTES ON MASTER
RESET
for more information.)
If you are experiencing trouble with remote control, check the
following:
Are the RS232 connectors plugged into the correct positions?
On the MCG-3? On the computer?
Does the baud rate your are using match the number set in the
utility menu?
Be sure that your PC is set for 8 data bits, 1 stop bit, and no parity.