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Q-750i Series Installation/Operation Manual 83
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RS-232 Error CodesIf an errcode ? command returns one of the following values, you have encountered a
likely system error requiring the attention of a qualified service technician. Try resetting the
projector by powering it off, allowing it to cool and powering it on again. Refer to
Table 6-3
and contact your dealer if the problem persists.
The specific code number identifies the source of the error detected, and is particularly
useful in cases where the projector is far away. For example, the code “7” means that
Fan
1 has failed.
Table 6-3. RS-232 Error Codes
Error Code LED Indication Description
0
Inlet NTC thermal sensor is over temperature.
1
Outlet NTC thermal sensor is over temperature.
2
Red LED thermal sensor is over temperature.
3
Green LED thermal sensor is over temperature.
4
Blue LED thermal sensor is over temperature.
6
Fan failure upon system power-up.
7
Fan 1 failed.
8
Fan 2 failed.
9
Fan 3 failed.
10
Fan 4 failed.
11
Fan 5 failed.
12
Fan 6 failed.
15
DDP3021 communication failure upon system
power-up.
19
PCF8575 external GPIO communication failure.
21
Gennum SP1 communication failure upon system
power-up.
22
System hardware I2C communication failure.
23
System software I2C communication failure.
24
EEPROM checksum error.
25
EDID checksum error.