Sankey CLCD-2630 - Troubleshooting: TV Abnormalities

- 28 -
6. TV abnormal
Check RF input
Confirm if T1 Pin3Pin13 is 5V
Check if T1 Pin4Pin5 I2C all right
Check if there is carrier wave output in T1 Pin12
Check L7/L8
Check U14 and controlled circuit
TV no sound (picture ok)
Replace T1
Check if there is audio signal outpu
t
inT1 Pin11P14.
Confirm U6(msp3415)
1． Power supply all right
2． Re-position all right
3． Crystal all right
Check antenna input
Check C46/C48
Tv no auto search /no signal
Check if I2C has
connected to MCU
上 U29
Replace T1