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15. HDMI Audio
Check video output
Y
Check EDID NVRAM (IC801, 802, 804)
Power & I2C Signal (#5, #6)
Y
Follow procedure All source audio trouble
shooting
16. USB
Check USB 2.0 Cable
conductors
Y
Check USB Device
If device is 2.5 inch HDD,
Do not connect, only upgrade
Y
Check JK804
Y
Check L801 voltage level 5V
Y
Replace
Mstar
• Exception
- USB power could be disabled by inrushing current
- In this case, remove the device and try to reboot the TV (AC power off/on)
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
from source device
.
for damage or open
IC
N
Follow procedure HDMI video trouble
shooting
N
Replace it or re-download
N
Replace
N
Replace it
N
Replace it
- 27 -
EDID data.
Mstar
IC
LGE Internal Use Only
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