Sharp LC-32WD1E/S/RU Service Manual page 32

LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E
CHAPTER 6. TROUBLESHOOTING TABLE
Is the power cord properly connected?
yes
Is the LED (power - H012) lit?
yes
Power on the set by using the remote. Does it start?
Connect the power cord
no
Is a voltage of 3v3 measured at X090-1?
no
(3V3_STB)
yes
Is a voltage of 3v3 measured at X013-1?
yes
Is a voltage of over 3v measured at X013-5?
yes
Replace IR PCB
Press the power-button on the set. Does it start?
no
yes
Replace IR PCB
6-1
Replace PSU module
no
Replace Mainboard
no
Replace Mainboard
no
Check/replace Mainboard
no