SERVICING
FIELD SERVICE: For Experienced Technicians
Disconnect all power and data connections. Remove the 5 face plate mounting screws on the PCB side. Use
only direct replacement parts and use static discharge precautions.
To replace an IC, using a small flat screwdriver carefully remove the IC by gently lifting up between the socket and the IC
keeping the IC as flat as possible. Bend the replacement IC’s legs so they are pointing straight down and not angled
outward. Align each pin In the center of each pin hole and gently snap into place, all legs at one time, DO NOT insert at an
angle. Insure the IC is flush on the socket and all pins are inserted.
TROUBLESHOOTING
Ÿ
check if power is present via the power LED, if
not check the internal fuse.
Ÿ
check if the input has a DMX512 signal by
bypassing the DS4, if not check the DMX512
console or source.
Ÿ
If the data and power areo.k. replace the input
IC and possibly the output IC’s.
Ÿ
If all outputs don’t work
Ÿ
replace the respective output IC (i.e. output
doesn’t work 4 replace IC # 4).
Ÿ
If any one of the outputs don’t work and the
others do
check fuse and power connections
Unit won’t power up
ELM Video
Technology, Inc.
DS4r3 User Guide.lwp
copyright
©
2011-2013 ELM Video Technology, Inc.
Note - Take care not to touch the component pins or the inner pins of the connectors. Electrostatic discharge may
cause permanent damage to the unit.
5x20mm
Fuse
Input IC
4 Ouput IC’s
Face Plate
Screws Term
Jumper
