Led Blinking Problem - Sharp LC-22LE240E Service Manual

LC-22LE240

21.3. Led Blinking Problem

Problem: LED blinking, no other operation
This problem indicates a short on Vcc voltages. Protect pin should be logic high while
normal operation. When there is a short circuit protect pin will be logic low. If you detect
logic low on protect pin, unplug the TV set and control voltage points with a multimeter to
find the shorted voltage to ground.
21.4. IR Problem
Problem: LED or IR not working
Check LED card supply on MB62 chasis.
60