Crestron MPS-250 Multimedia Presentation System 250
MPS-250 Troubleshooting (Continued)
TROUBLE POSSIBLE CAUSE(S) CORRECTIVE ACTION
Poor picture
quality (Video). Cables improperly
connected. Verify that all cables are
secure.
NOTE: If communication cannot be established or the control system is locked-up,
refer to “Troubleshooting Communications” in the Crestron 2-Series Control
Systems Reference Guide (Doc. 6256).
NOTE: Passthrough Mode enables Viewport access to any serial controlled device
on the network. This aids in troubleshooting by allowing direct communication
between the PC and a network device (effectively “passing through” the MPS-250).
For information pertaining to Passthrough Mode, refer to “Passthrough Mode” in the
Crestron 2-Series Control Systems Reference Guide (Doc. 6256).
System Monitor The System Monitor allows you to reload firmware into the MPS-250 in the event
that you cannot load the firmware in the normal mode.
If the system does not function, perform the following procedure:
1. Disconnect all Crestron USB devices from the PC.
2. On the MPS-250, press and release the HW-R button. The MSG LED will
start blinking rapidly four times per second.
3. During the rapid blink of the MSG LED, press and release the SW-R
button. This will put the MPS-250 into Wait mode for the next five
seconds. During this mode the MSG LED will blink slowly, once per
second.
4. During Wait mode, press and release the SW-R button again. The
MPS-250 will now enter the Wait Acknowledge mode for the next five
seconds. During this mode the MSG LED will blink rapidly four times per
second.
5. During Wait Acknowledge mode, press and release the SW-R button a third
time. The MPS-250 will enter Monitor mode. Once the MPS-250 is in
Monitor mode, the MSG LED will flash to indicate Monitor mode. The
display will also indicate the Monitor mode.
6. Once the MPS-250 is in Monitor mode, connect to the PC using a USB
cable.
NOTE: If at any point in the above sequence, one of the timer periods expires
without the SW-R button being pressed, the unit will boot normally, first running the
firmware, then loading the application.
NOTE: If your PC does not have the USB driver installed, after connecting the
MPS-250 to the PC using the USB cable, you will see a dialog box on your PC
screen asking you to install the USB driver. For instructions on how to install the
USB driver, refer to the Crestron Toolbox help file.
7. Open Toolbox and start the Text Console (click the icon). Then, click
on the Address Book icon in the lower left corner of the window to open
the “Address Book” window.
Operations Guide – DOC. 6647A Multimedia Presentation System 250: MPS-250 • 83