Samsung HT-Z410, Service Manual

Page: 35 / 108

Samsung Electronics 4-13
Troubleshooting
4-1-3 No Analog Video Output

COMPOSIT (VIDEO OUT)
Check if VDAC
output is measured at the pin 100 of
MIC1 ES8391.
Yes
Check if output
is measured at the pin 1 of
VIC1 LA73054.
Check if VDD
of 3.3V is measured at the pin 1, 14,
and 58 of MIC1.
Check if VDD
of 5V is measured at the
pin of VIC1.
Replace the MIC1 IC.
Replace the VIC1.
Check if the pin 4 and 5 of
CON3 is 3.3V.
Check if the pin 3 of CON3 is
5V.
No
Yes
No
No
COMPOSIT (VIDEO OUT)
Yes
Yes
No
Check the VJ1 connectivity
and replace it if necessary.
Check MPEG Output.
Check Video Switch.
Check JACK Output.
Check if composite video
output is measured at the VJ1.