Sony KD-43X7 G Series Service Manual page 83

2.7 No Power DDCON/LDO
DC-DC Converter Overall Check
START
Check C6093 Voltage.
no
Is the voltage 3.3V?
yes
Check C6042 Voltage.
no
Is the voltage 1.5V?
yes
Check C6072 Voltage.
no
Is the voltage 5V?
yes
Check C6141 Voltage.
no
Is the voltage 5V?
yes
DDC: +3.3V_DDC_OUT check
DDC: +1.5V_DDR check
DDC: +5.0V_DDC_OUT check
DDC: +5V_WIFI check
Check C6146 Voltage.
no
Is the voltage 1V?
yes
Check C6134,
no
C6050 is it
1.05V?
yes
Check C6058
no
is it 1.8V?
yes
Check C6125
no
is it 1.8V?
yes
Check 3.3V_MAIN
no
C6130 Voltage.
Is the voltage 3.3V?
yes
END (DDCON/LDO working normal)
DDC: +1.0V_M3 check
LDO: +1.05V_M3_xx check
DDC: +1.8V_TU check
DDC: +1.8V_EMMC check
SW: +3.3V_MAIN check
83
SYS SET