Barco HDF W series, Service Manual

Page: 326 / 337

19. Board Diagnostic LED’s
19.9 LPS module diagnostic LED’s
Status LED’s on the LPS module
There are 8 diagnostic LED’s on the 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
fi nally, 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.
- LAMP
ERR
N
STATUS CTLB OUT
ADDRESS CTRL IN
LAMP ON / LVPS OK
CTRL OUT
CTLB IN
PFC
OK
LPS
OK
MAINS
INPUT
3
2
1
4 5 6
7 8
Image 19-11
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
HEARTBEAT
(Orange LED 1)
Diagnostics Action
Blinking Normal operation
-
OFF 12 V from backplane via CTRL IN not available on LPS
unit Check 12V out on backplane.
ON 12 V from backplane available. Replace the LPS module.
LPS TRANS
(Orange LED 3)
Diagnostics Action
Blinking Normal operation, blinks each time a valid transmission
has been received
-
Communication fault (no reception of valid commands
from primary side) Replace LPS unit
Fault on primary side of LPS (E.g. fuse blown and no
mains voltage available inside LPS) Replace fuse.
If the problem is not solved, replace LPS
OFF or ON
No mains voltage present at input of LPS mains
terminals Check main voltage.
About the diagnostic LEDs, ERR, PFC, LPS, Lamp ON and LVPS.
322 R5905312 HDF W SERIES 24/01/2013