LG 19LD320 / 19LD320N (CHASSIS:LD91A) Service Manual ▷ View online
HDMI Video OK ?
YES
Check the ADJUST MENU
EDID OK ?
YES
Download EDID
(Refer to Adjustment Spec)
NO
Check the HDMI Cable
Replace MAIN B’D IC100
YES
Making
Revision
2009. 2 . 1
26/34
LCD TV
Symptom
HDMI-DTV No Audio Problem
26~42LH2000
32~47LH3000/LH4000
32~47LH3000/LH4000
Check the SCART Cable
YES
Replace MAIN B’D
IC1103
MAIN B’D
R239 (Right Sound)
R240 (Left Sound)
signal ?
NO
YES
Replace MAIN B’D IC 100
Analog TV Audio OK
YES
Check MAIN B’D JK1100
Replace MAIN B’D JK1100
NO
YES
Check the Trouble Shooting Guide
Analog TV No video
NO
Making
Revision
2009. 2 . 1
27/34
LCD TV
Symptom
AV1 No Audio Out Problem
26~42LH2000
32~47LH3000/LH4000
32~47LH3000/LH4000
Check the SCART Cable
YES
Replace MAIN B’D
IC1103
MAIN B’D
R250 (Right Sound)
R251 (Left Sound)
signal ?
NO
YES
Replace MAIN B’D IC 100
Speaker Audio OK
YES
Check MAIN B’D JK1101
Replace MAIN B’D JK1101
NO
YES
Check the Trouble Shooting Guide
Related to Audio Problem
NO
Making
Revision
2009. 2 . 1
28/34
LCD TV
Symptom
AV2 No Audio Out Problem
26~42LH2000
32~47LH3000/LH4000
32~47LH3000/LH4000
Check the Headphone Cable
YES
Replace MAIN B’D
IC700
MAIN B’D
R237 (Right Sound)
R238 (Left Sound)
signal ?
NO
YES
Replace MAIN B’D IC 100
Speaker Audio OK
YES
Check MAIN B’D JK700 or JK701
Replace MAIN B’D JK700 or JK701
NO
YES
Check the Trouble Shooting Guide
Related to Audio Problem
NO
Making
Revision
2009. 2 . 1
29/34
LCD TV
Symptom
Headphone No Audio Problem
26~42LH2000
32~47LH3000/LH4000
32~47LH3000/LH4000
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