Lps Module Diagnostic Led's - Barco DP2K-12C Service Manual

18. Lamp power supply (single module)

18.1 LPS module diagnostic LED's

Status LED's on the LPS module
There are 8 diagnostic LED's per LPS module. Four orange, three green and one red LED.
The orange LED "LVPS OK" lights up immediately after the projector is switched on. At the same time, the heartbeat LED starts
blinking. All other status LEDs of the LPS unit remain off. This is the standby status of the LPS unit. Once the command is sent
to the LPS units to start up the projection lamp, the green LEDs are lighting up one after the other. First the green LED "PFC OK",
then the green LED "LPS OK" and finally, when the lamp is ignited, the green LED "LAMP ON". The right orange of the upper row
blinks. This is the heartbeat signal
The red LED "ERR" remains off unless an error is detected inside the LPS unit or when both LPS units are ordered to shutdown due
to a malfunction somewhere else inside the projector.
1
2
3
- LAMP OUTPUT +
STATUS CTLB OUT
PFC LPS
ERR OK OK ADDRESS
4 5 6
Image 18-1
1 Diagnostic LED "LPS HEARTBEAT" (orange).
2 (internal use only).
3 Diagnostic LED "LPS TRANS" (orange).
4 Diagnostic LED "ERROR" (red).
5 Diagnostic LED "PFC OK" (green).
6 Diagnostic LED "LPS OK" (green).
7 Diagnostic LED "LAMP ON" (green).
8 Diagnostic LED "LVPS OK" (yellow).
Diagnostic
About the orange LEDs next to the CTRL connectors:
LED 2 is only for internal use. LED 1 is the heartbeat LED.
LPS Diagnostics
HEARTBEAT
(Orange LED 1)
Blinking Normal operation
OFF 12 V from backplane via CTRL IN not available on LPS
unit
ON 12 V from backplane available.
LPS TRANS Diagnostics
(Orange LED 3)
Blinking Normal operation, blinks each time a valid transmission
has been received
OFF or ON Communication fault (no reception of valid commands
from primary side)
Fault on primary side of LPS (E.g. fuse blown and no
mains voltage available inside LPS)
No mains voltage present at input of LPS mains
terminals
About the diagnostic LEDs, ERR, PFC, LPS, Lamp ON and LVPS.
292
7
LAMP ON / LVPS OK
CTLB IN
CTRL OUT CTRL IN
8
MAINS
INPUT
N
Action
-
Check 12V out on backplane.
Replace the LPS module.
Action
-
Replace LPS unit
Replace fuse.
If the problem is not solved, replace LPS
Check main voltage.
R5905043 DP2K-12C/11CX 19/02/2018