Philips 20MF251W-27 Service Manual page 16

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EN 16
5.
SHA2.0U LA
5.3.8
No VGA / S-audio / CVBS-audio sound
No VGA / S-audio /
CVBS-audio sound
Check if signal of
N1 pin47,48(VGA),pin50,51
(HDTV),pin53,54(S-video),pin56,57
(DVD),pin60,67(TV) is normal
Yes
Check if voltage of
N1 pin11~13,65,66,80 is normal
Yes
Check if Z5 is 18.432MHz
Yes
Check if signal of N35
pin1,7 is normal
Yes
Check if signal of
N8 pin4,6 is normal
Yes
Replace Speaker
Service Mode, Error Codes, and Faultfinding
No
Replace circumjacent capacitor
No
Chech power supply
No
Replace Z5
No
Replace N35
No
Replace N8

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