Sharp LC-40LE361E Service Manual ▷ View online
21
LC-32/40LE361
LC-32/40LE360
LC-32/40LE362
LC-32/40LE363
Backlight power supply should be in panel specs. Please check Q33, shown below; also it can be checked
TP53.
TP53.
STBY_ON/OFF_NOT should be low for tv on condition, please check Q11’s collector.
PANEL SUPPLY SWITCH
22
LC-32/40LE361
LC-32/40LE360
LC-32/40LE362
LC-32/40LE363
2. CI MODULE PROBLEM
Problem: CI is not working when CI module inserted.
Possible causes: Supply, supply control pin, detects pins, mechanical positions of pins
Possible causes: Supply, supply control pin, detects pins, mechanical positions of pins
.
CI supply should be 5V when CI module inserted. If it is not 5V please check CI_PWR_CTRL,
this pin should be low.
Please check mechanical position of CI module. Is it inserted properly or not?.
Detect ports should be low. If it is not low please check CI connector pins, CI module pins.
23
LC-32/40LE361
LC-32/40LE360
LC-32/40LE362
LC-32/40LE363
3. STAYING IN STAND-BY MODE
Problem: Staying in stand-by mode, 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
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.
4. IR PROBLEM
Problem: LED or IR not working
Check LED card supply on MB95M chassis.
Check LED card supply on MB95M chassis.
24
LC-32/40LE361
LC-32/40LE360
LC-32/40LE362
LC-32/40LE363
5. KEYPAD TOUCHPAD PROBLEMS
Problem: Keypad or Touchpad is not working.
Check keypad supply on MB95M.
Check keypad supply on MB95M.
5. KEYPAD TOUCHPAD PROBLEMS
Problem: Keypad or Touchpad is not working.
Check keypad supply on MB95M.
Check keypad supply on MB95M.
5. KEYPAD TOUCHPAD PROBLEMS
Problem: Keypad or Touchpad is not working.
Check keypad supply on MB95M.
Check keypad supply on MB95M.
Click on the first or last page to see other LC-40LE361E service manuals if exist.