Vizio P50HDTV10A Service Manual page 38

Block 2
start
No
HDMI's chip
communicate with
SM5964,is ok?
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No
Check U38's power Check U2's +5V_SW
Pin 44,35 pin 7,8
Yes
Check Y3
11.0592MHz
Yes
No
Check U38's UART Check U20
TxD pin 13
RxD pin 11 Pin 10 output select=high
Check R143,R144
No
pin 16 +5V U20 fail
Yes
No
U13 fail
15
Page 9-19
File No. SG-0219