
LARGE SYSTEM APPLICATION
The ML85 IR receiver is compatible with all Xantech Connecting Blocks. Different connecting blocks are provided for application specific situations. For instance, in the diagram below, a 
TROUBLE SHOOTING:
1. Perhaps the most common problem you may encounter is stray IR  | 
(infrared) or RF (radio frequency) interference preventing proper  | 
operation of the controlled equipment.  | 
∙ Fluorescent, Compact Fluorescent, Neon or Halogen  | 
lights, Neon Art, and light dimmers.  | 
∙ Direct of reflected sunlight.  | 
ML Series  | ||
Amplified  | ||
IR Receivers  | ||
Connecting Block  | ||
  | 
Satellite Receiver
∙  | Infrared security sensors (active types).  | 
∙  | RF radiation from TV sets that may be close to the Micro  | 
  | Link IR Receiver. | 
IR Photodiode
Talkback LED
OUT  | HIGH IR  | 
RCVR  | IR  | 
+ 12 V DC
G N D
S TATUS
I R I N
EMITTERS
Emitter
VCR
Emitter
AV Receiver
Emitter
2. You can confirm the source of the interference by temporarily  | 
turning off TV sets, isolating the Micro Link IR Receiver from all  | 
sunlight and turning off all lights, light dimmers and Infrared  | 
security systems. Then check to see if the Micro Link IR Receiver  | 
operates the component.  | 
∙ Sometimes interference will cause the red   | 
on the front of the Micro Link IR Receiver to blink dimly, | 
Hand Held  | 781ERGPS | 
Remote  | 
  | 
  | To 120 VAC  | 
  | (unswitched)  | 
  | 12 VDC  | 
Controlled Equipment (mounted behind closed cabinet doors)
®  | CONNECTING  | 791- 44 AMPLIFIE D  | 
  | BLOCK  | 
  | 
CD Changer
Emitter
Cassette Deck
Emitter
intermittently, or continuously.  | 
∙ The   | 
sending infrared commands to the Micro Link IR receiver  | 
from a remote control.  | 
∙ It may be necessary to move either the interfering source  | 
of the Micro Link IR Receiver to achieve proper operation.  | 
3. If the   | 
are sending IR commands to the Micro Link IR Receiver from a  | 
remote control, check the following:  | 
∙ Make sure the power supply is plugged securely into a live  | 
AC electrical outlet.  | 
∙ Be sure the stereo mini plug of the Micro Link IR Receiver  | 
is plugged into the “IR RCVR” jack on the CB12  | 
Connecting Block, not into the “OUT” jack.  | 
∙ Check to see that all the mini plugs are properly seated  | 
into the mini jacks on the CB12 Connecting Block.  | 
4. If the 283D Emitters blink, but the component does not respond,  | 
reposition the 283D Emitter(s). They may not be located directly  | 
over the component’s infrared receiving “window”. Consul the  | 
owner’s manual of the unit or the manufacturer for the exact  | 
location of the infrared “window”.  | 
4  | 
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