Service manual

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 powerÎ
Pin 44,35
Check Y3Î
11.0592MHz
Yes
No
Check U38’s UART
TxDÎpin 13
RxDÎpin 11
Check U20Î
pin 16Î+5V
Pin 10Îoutput select=high
No
U20 fail
start
Check U2’s +5V_SW
Îpin 7,8
No
Yes
Check R143,R144
Yes
No
U13 fail