Samsung HT-Z210, Руководство по обслуживанию

Страница: 31 / 90

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 33 of
VIC1 LA73054.
Check if VDD of
3.3V is measured at the pin 1, 14, 30,
46, 62, 77 of MIC1.
Check if VDD of
5V is measured at the pin 1, 24, 34
of VIC1.
Replace the MIC1 IC.
Replace the VIC1.
Check if the pin 10, 11 of
MCON2 are 3.3V.
Check if the pin 3 of CON3 is
5V.
No
Yes
No
No
COMPOSIT (VIDEO OUT)
Yes
Yes
No
Check the JP6 connectivity
and replace it if necessary.
Check MPEG Output.
Check Video Switch.
Check JACK Output.
Check if composite video
output is measured at the JP6.

Refer to wave pattern
image of Fig. 4-6.

Refer to wave pattern
image of Fig. 4-7.