Crystal Vision
Trouble shooting
Crystal Vision
Trouble shooting
PSU 2
Unlit
None
No PSU 2 detected
Yell/Grn
None
Normal operation
Red
Upper PSU fault
Change PSU 2, check supply, change
upper inlet fuse
PSU 3
Unlit
None
No PSU 3 detected
Yell/Grn
None
Normal operation
Red
Upper PSU fault
Change PSU 3, check supply, change
upper inlet fuse
Mains input
Unlit
None
4
th
PSU not fitted
Yell/Grn
None
Normal operation
Red
Upper or Lower PSU
fault
Change PSU 4, check supply, change
upper inlet fuse
Temp
Yell/Grn
None
Normal operation
Red
FRAME TOO HOT
Ambient temperature too high/fan fault
Comms
Unlit
None
Press Device in Statesman mode for
comms status
Flash amber
None
If a PSU is not fitted, the corresponding LED will not illuminate. If the front
panel is open, the Front Fan LED will also be unlit.
Power supply related faults operate a relay the contacts of which are brought
out to the Remote connectors. These contacts can be used to operate external
indicators as desired.
Please refer to the power supply pinout section for more details.
The PSU-150i-48V line fuse is located internally to the PSU module.
Replacing this fuse will involve dismantling the module. See replacing PSU-
150i-48V fuse
Note:
The red LED built into the front of the vertical PCB on the LHS of the PSU
will flash repeatedly (on for one second and off for one second) if there is no
speed fan signal present on the connector SK1( the front LHS of the PSU).
This will occur when the PSU Fan assembly is removed or if the PSU fan
stops. When the fan speed signal is present the LED is unlit. The same red led
will light up continuously if levels of the power rails (+5.75V or –6.0V) are
outside operational limits. Refer to Section 2.6 for further details.
Replacing the mains input fuses
The mains input fuses are fitted inside the IEC 320 connectors at the rear of the
frame. A spare fuse is also stored inside the connector. The fuse can only be
accessed when the power cord is disconnected.
The sequence is as follows: -
•
Disconnect ALL the power cords (one or two depending on
configuration) from the rear of the frame.
•
Using a flat bladed screwdriver or similar tool gently lever out the
fuse drawer from the relevant IEC connector using the tab visible at
Indigo PSU Manual R1.2
24/05/2010
12
