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LGE Internal Use Only
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
6. HDMI Video Trouble Shooting guide
Check input signal format.
Is it supported?
Y
Check AC cable for damage
For damage or open conductor
Y
Check JK3201/JK3202/JK3203
Can you see the normal waveform?
Y
Check HDCP key on INSTART Menu
Y
Check the input of LG1311 (IC101).
Measure waveform at AR3200, AR3201, AR3202 because it’s more easy to check.
Can you see the normal waveform?
Y
This board has big problem because Main chip(LG1311, IC101) have some troubles.
After checking thoroughly all path once again, You should decide to replace Main IC or not.
Replace JK3201/JK3202, JK3203
N
Re-download HDCP Key
N
7. Analog RF Audio Trouble Shooting guide
Check RF cable & signal
Check TU6401 Pin 6, 7
Y
Check Audio AMP output
L5602,L5603,L5604,L5605
Y
Check IC5600
Y
Replace IC101
Replace Tuner
N
Replace L5602,L5603,L5604,L5605
Replace IC5600
N
N
Summary of Contents for 47LY960H
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