Vizio P50HDM Service Manual - Page 78

Block 2

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Block 2 start HDMI's chip communicate with SM5964,is ok? No No Check U38's powerÎ Check U2's +5V_SW Pin 44,35 Îpin 7,8 Yes Check Y3Î 11.0592MHz Yes No Check U38's UART TxDÎpin 13 RxDÎpin 11 Check U20Î No pin 16Î+5V Pin 10Îoutput select=high Yes U20 fail No Check R143,R144 U13 fail CONFIDENTIAL - DO NOT COPY 15 Page10-18 File No. SG-0174

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CONFIDENTIAL – DO NOT COPY
Page10-
18
File No. SG-0174
15
Block 2
HDMI’s chip
communicate with
SM5964,is ok?
No
Check U38’s power
Pin 44,35
Check Y3
11.0592MHz
Yes
No
Check U38’s UART
TxD
pin 13
RxD
pin 11
Check U20
pin 16
+5V
Pin 10
output select=high
No
U20 fail
start
Check U2’s +5V_SW
pin 7,8
No
Yes
Check R143,R144
Yes
No
U13 fail