TV NO scan or no picture
六
六
六
六、
、
、
、Function Trouble
Function Trouble
Function Trouble
Function Trouble（
（
（
（TV video
TV video
TV video
TV video）
）
）
）
whether the external input signal is normal?
N
repair external RF equipment
Y
check the 7
th
pin of t1,whether it is 5V
Repair this
pin power
net
Y
N
whether the 4
th
,5
th
pin of T1 has data of I
2
C
N
Y
whether the 8
th
pin of T1 has signal?
N
check the network
between U14 and TSUMV26KE
or network between U14
And TV pins or 33v Boost Circuit
Y
whether the 2th pin of T1
has the voltage(1.8V~4.3V)
Repair this circuit
N
Y
T1 damage
Check I2C net
(pin68,pin69)
