Rane RPM 26i - Manual (Page 22)

Manual-22
TROUBLESHOOTING
POWER LED is Off:
Check the POWER connection on the chassis, and confirm that the remote supply is connected to a live AC source. Ensure
that the DIN power plug is plugged into the unit before connecting AC power.
No communication between the unit and the computer:
Set the DEVICE ADDRESS to a unique small number, and try polling for units in RaneWare (under Device > Select,
then click Poll). The unit should be found quickly. If more than 16 units are daisy-chained from one serial port, communication
to the furthest units may be unreliable.
Check that the COM port selected in RaneWare in the System > System Setup menu is the one on your computer that is
connected to the unit. Also check that the cable is a standard RS-232 cable (not a null modem type). If an adapter is used, it
must not be null modem type. The cable must be connected to the RW 232 INPUT jack on the rear of the unit.
Be sure the “ Remote to RPD 1” box is not checked in the System > System Setup menu.This box is only used with the
Rane RPD 1 to remotely communicate with an RW 232 system. When this box is checked, no communication with local RW
232 devices is possible. (See page Manual-5-6 for more RPD 1 information.)
Audio hum or noise:
Click the Mute All button. If this helps significantly, the problem may be with the Input connection, or the equipment
driving the Input. If Muting has little effect, the problem is likely either the Output connection, or equipment driven by the
Output.
The RPM 26i is intended to connect to equipment with balanced audio I/O. If you really must operate unbalanced equip-
ment with the RPM 26i, please refer to Rane Note 110, “Sound System Interconnection” (next section) or The Journal of the
AES Vol. 43 No. 6 (June 1995).
See the Chassis Grounding Note below.
Flashing OUTPUT LEDS 1 or 2:
If working Memory (Memory zero) gets corrupted, Output 1 flashes yellow. If just Output 1 flashes, try to reload the DSP
Program, load a different DSP Program or recall a different Memory.
If Output 2 flashes yellow, an unrecoverable error has occurred. If this happens, first try to reset the unit by cycling the AC
power, (do not unplug the DIN jack to cycle the power). If Output 2 is still flashing after power-up, the unit may need erasing.
This reinitializes all of the stored parameters including names, and resets all Memories to DSP Program 3. To erase, hold the
DEFAULT button while turning the power on. Be sure to hold the DEFAULT button until the Output LEDs cycle. When the
unit is finished erasing, the Output LEDs cycle yellow from the outsides to the center.
If you are unable to stop either the Output 1 or the Output 2 LEDs from flashing by resetting the unit, contact the factory.
FCC NOTICE
This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the
equipment is operated in a residential installation. This
equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio
communications. However, there is no guarantee that
interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or
television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following:
1. Re-orient or relocate the receiving antenna.
2. Increase the separation between the equipment and the
receiver.
3. Connect the equipment into an outlet on a circuit differ-
ent from that to which the receiver is connected.
4. Consult the dealer or an experienced radio/TV technician.
CANADIAN EMC NOTICE
This Class B digital apparatus meets all requirements of
the Canadian Interference-Causing Equipment Regulations.
Cet Appariel numerique de la classe B respecte toutes
les exigences du Reglement sur le material broilleur du
Canada.
CHASSIS GROUNDING
If after hooking up your system it exhibits excessive
hum or buzzing, there is an incompatibility in the grounding
configuration between units. Here are some things to try:
1. Try combinations of lifting grounds on units supplied
with ground lift switches (or links).
2. Verify all chassis are tied to a good earth ground.
3. Some units with outboard power supplies do not ground
the chassis through the line cord. Make sure these units
are solidly grounded by tying the Chassis Ground Point
to known earth ground. Use a star washer to guarantee
proper contact.