Advertisement
NO RF-MOD OUTPUT
Q823 Base is High?
Q824 Collecter is 5V?
Video signal occur
Q807 Emittter?
When RF channel tunning,
I2C CLK, data are OK?
: R166, R168.
BD75 is 30 3V?
Check MOD801.
Samsung Electronics
No
Yes
No
Yes
No
Yes
Yes
Yes
Check U106.
Check L801.
Check Q824.
U801 (12, 14)
video signal is OK?
Yes
Check Q807.
Troubleshooting
No
Check U801.
4-3
Advertisement
