Samsung HT-C550 - Page 72

Samsung Electronics 4-15
Troubleshooting
4-1-5 HDMI Video
Check HDMI POWER
supply.
(PLL_3.3V, VDD1.2v)
Yes
Yes
Check 3.3V power lines
No
Check IC11 power
(3.3V)
1
Check Pin 117, 118, 120,
121, 123, 124, 126, 127
of IC10
Analog (Composite)
Video OK but HDMI
No
Replace MPEG IC
Yes
Yes
Check PLL3.3V lines and
VDD1.2V lines and R150,
R151, R152 value.
No
Check Voltage pin110
pin of IC10
(1.5V~1.8V)
Check if 480p output
Is ok.
No
Check jack Input.
Check AMP input.
Check MPEG Ouput.
Yes
Please, Call to Samsung
A/S Center.
Replace MPEG IC
 Refer to wave pattern
image of Fig. 4-11.