Xantech ML85K Symptom #3 TB LED on IR Receiver and/or Emitters on solid, Xtralink Only TV on same

Symptom #3: TB LED on IR Receiver (and/or Emitters) on solid

	Cause:	Solution
		Use a 85 or 95 series Plasma 'Friendly'
		Receiver. If already using a this unit, please
		note the Plasma interference can be reflected
1.	Plasma Interference	off of any item it comes into contact with within
		approx. 3ft. From the front of the display.
		Keeping this in mind, make sure that the IR
		receiver is free from any obstruction that might
		reflect back into the receiving eye.
2.	Voltage and Ground wires are	Recheck your wiring.
	reversed at the connecting
	block or IR Receiver
	Relatively high levels of	In this case use either a SUN filter (SUNKIT),
		or any of our ‘Plasma/CFL Friendly’ IR
	ambient noise. This can be
		Receivers (DL85/95, HL85/95, ML85/95,
3.	due to any of the following:
		WL85/95). These can also be used in direct
	Sunlight, florescent Lighting or
	Plasma Displays.	sunlight and in the presence of ‘tube style’
		fluorescent lighting.
	EMI induced noise. This can	Reposition IR Receiver and/or cabling away
		from emitting device. You can also place a
	be due to light dimmer controls
4.		470Ohm resistor in parallel with the IR Signal
	or other radiating electronic	and GND connections on the connecting
	devices (PC’s or any poorly
		block. This will also help alleviate any stray
	shielded electronic device).
		capacitance in the cable.
5.	Power Supply not putting out	Verify supply is a 12VDC regulated supply
	proper voltage.	reading between 11.5 to 13VDC under load.

10

Symptom #4: TB LED on IR Rec. blinks but 283D or 286D 'Blink' style Emitters do not

	Cause:	Solution
	There may be a short, such as a
1.	staple driven through the Signal	Recheck your wiring.
	and GND wires of the IR
	Receiver and/or the emitter.
2.	Emitter may be shorted internally	Replace Emitter or use TEST EMITTER to
		check circuit.
	(XTRALINK Only) TV on same	Place a DC Blocker (Model 203-00) on
3	splitter with no IR Receiver
		any TV Leg without IR Receiver
	installed

Symptom #5: Intermittent IR control (I.e. buttons on remote need to be pressed multiple times)

	Cause:		Solution
1.	Plasma Interference		Use a 85 or 95 series Plasma 'Friendly'
			Receiver
	Relatively high levels of ambient		In this case use either a SUN filter
			(SUNKIT), or any of our ‘Plasma/CFL
2.	noise. This can be due to any of		Friendly’ IR Receivers (DL85/95, HL85/95,
	the following: Sunlight, florescent		ML85/95, WL85/95). These can also be
	Lighting or Plasma Displays.		used in direct sunlight and in the presence
			of ‘tube style’ fluorescent lighting.
			Putting a 470-ohm resistor in parallel at
			the connecting block between signal and
			ground will effectively discharge the
			capacitance of the wire. This will allow the
			signal to travel farther on shielded wire.
	Long Wire Runs – shielded wire		Adding a resistor between the input and
	typically of 100 feet (30 meters)		ground of the connecting block will drop
	or longer causes a filter effect		the IR level down somewhat. Passive
3.	due to accumulated capacitance		connecting blocks, such as the 789-44,
	of the wire. Intermittent, or no IR		may not have enough signal output for
	control, could actually be		consistent control of the equipment. You
	because of the longer wire runs.		may have to upgrade to an amplified
			connecting block to bring the IR level back
			to normal. In these cases, the 791-44
			would be an ideal connecting block for
			single zone systems while the 795-20
			would work best for a 2-4 zone system.
		11