Samsung HT-TZ315 Service Manual page 34

Troubleshooting
 COMPONENT (Y, Pb, Pr)
COMPONENT (Y, Pb, Pr)
Check if
YDAC, CADC, and UDAC
outputs are measured at the pin 103,
104, and 105 of MIC1
ES8391.
Yes
Check if
output is measured at the pin
21, 23, and 25 of VIC1
LA73054.
Yes
Check if composite video
output is measured at the VJ4.
Check the VJ4 connectivity
and replace it if necessary.
4-16
Check MPEG Output.
No
3.3V is measured at the pin 1, 14, 30,
 Refer to wave pattern
image of Fig. 4-8.
Check Video Switch.
No
 Refer to wave pattern
image of Fig. 4-9.
Check JACK Output.
Check if VDD of
46, 62, 77 of MIC1.
Yes
Replace the MIC1 IC.
Check if VDD
of 5V is measured at the pin 1
of VIC1.
Yes
Replace the VIC1.
No
Check if the pin 10, 11 of
MCON2 are 3.3V.
No
Check if the pin 12, 13 of
MCON2 is 5V.
Samsung Electronics