Copyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
C
2008
- 21 -
(7) In the case of becomes unusual display from SCART2 mode
6. In case of no sound
(1) Symptom
1) LED is Green.
2) Screen display but sound is not output
(2) Check follow
All input (mode)
is no sound?
Only HDMI is
No sound?
No
Yes
Download
the EDID data
Check the signal after CXA2069
refer to circuit diagram
No
Only specific input
(except HDMI,DTV,
RF) is no sound?
Check the signal before CXA2069
refer to circuit diagram
No
YES
YES
Only RF is no
sound?
Check
the Tuner IN/OUT
No
YES
YES
Only
AV/component/PC
input is no sound?
Is the output of
CXA2069 normal?
No
YES
IC1300 operates
Normal?
Replace IC1300
(MSP4450)
No
IC1301 operates
Normal?
Replace IC1301
(NTP300A)
No
YES
Replace VSC BD
YES
No
Replace CXA2069
Is the speaker
On it men?
Set on speaker in menu.
No
Is the speaker
Cable normal?
Check the Speaker
Cable
No
Yes
Is Video input of A/V jack
normal? (JK1201)
Yes
Same as Block A
Check the input source.
No
