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11. Abnormal sound (HDMI)-Main PCBA
Abnormal sound (HDMI)
1
Put into HDMI
cable completely?
2
Is Input signal timing
and f ormat in spec?
Can read EDID and
3
HDCP key though
16,15pin of JK300
4
Is 5V at 19pin of JK300?
5
Is wavef orm at R319,
6
Is wavef orm at R321,R322,
R323,R324,R325,R326
Change IC600
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LG Electronics. Inc. All rights reserved.
Only for training and service purposes
YES
NO
YES
YES
YES
NO
R320
YES
NO
YES
NO
product spec, change f ormat to PCM
Check Line between JK300 and IC600
Change IC602 or HDMI cable
Check Line between JK300 and IC600
Check Line between JK300 and IC600
Check Line between JK301 and IC600
- 22 -
insulted HDMI cable
Change Timing according to
is open or short, Another is
is open or short, Another is
Change IC600 or HDMI cable
is open or short, Another is
Change HDMI cable
is open or short, Another is
Change HDMI cable
LGE Internal Use Only
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