Runco VX-4C, VX-6C

OPERATION

Front IR Receiver / Back IR Receiver

As described in Section 2, the standard IR remote keypad is capable of sending

data to the projector in either one of two protocols called Aor B. Likewise, the

front and rear IR sensors on the projector can be set to accept IR data accord-

ingly, responding to A, Bor both. The projector’s Aor Bdefault is adequate

for most single-projector installations. Select a specific protocol to prevent

interference when you are controlling two protectors in the same area and want

to work with one projector at a time.

Note that the front and rear IR sensors cannot respond to different protocols-if you change a pro-

tocol for either sensor to anything other than OFF, the protocol for the other sensor also changes.

For example, setting Front IR Receiver to Balso changes the Back IR Receiver to B. If you want

only one sensor to respond to a particular protocol- A, B, or Aor B-disable the other sensor by

setting its protocol to OFF.

If you want to disable both IR sensors, you cannot use the IR remote keypad to select the second

OFF setting. This safeguard prevents accidentally disabling a keypad while you are using it.

Instead, use either the built-in keypad or the wired remote to set the remaining active sensor to

OFF. The projector will no longer respond to an IR remote keypad.

IMPORTANT

Keep at “A OR B” unless you are sure of

the current IR keypad protocol.

NOTES: 1) The IR remote keypad for this projector is set at Runco to “Protocol A”. See 2.12 in

Chapter 2, Keypad Protocols and Conversion for information about changing the keypad proto-

col. 2) A key press from a conflicting protocol will cause a single yellow flash on the Status LED

located in the lower right corner of the rear projector panel.

Wired Keypad

Like the IR remote keypad, the optional wired keypad is either a “Protocol A” keypad (default)

or a “Protocol B” keypad. Likewise, the projector can be set to accept wired keypad data accord-

ingly, responding to Aor B. If desired, you can prohibit the projector from responding to a par-

ticular wired keypad protocol, or you can ensure that the projector responds to either protocol

(default). You can also prevent the projector from responding to the keypad entirely. In the pull-

down list, select the desired protocol.

NOTE: The wired keypad for this projector is set at manufacture to “Protocol A”. See 2.12,

Keypad Protocols and Conversion for information about changing the keypad protocol.

Adding a Protocol: To add a protocol, select the Aor Boption.

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A or B

Off