Haier HL19KN1 Service Manual page 51

Function Trouble （DVB-T）
DVB can't find any channel/no picture
N
Check Pin6 of T1 has 4M clock signal?
Y
Check U25Pin37 is 3.3V?
N
Y
Check 3.3V
power
supply circuit
N
Check the reset circuit
Check
（U6 Pin42 to U25
the
Pin12）
power
supply
circuit
DVB can't find any channel/no picture
Power supply worked normal?（U15,U22,U32,U34）
Y
Check T1-pin4,5 for I2C
Or T1 damaged
Check the reset signal of U25
Y
U25 damaged
N
OK
Check whether there is TS-
Stream output from U30 to U26
U26/TDA100
46A or
RP17,RP16,
RP9 weren't
mounted
firmly or
damaged
Y
Check power supply for U30
NG
Check the
power supply
circuit
Y
U26
/PNX8316
Damaged and
change it