LG 22LG3DCH (CHASSIS:LA76A) Service Manual ▷ View online
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13. HDMI Audio
Check video output
Follow procedure All source audio trouble
shooting
Y
Follow procedure HDMI video
trouble shooting
N
N
Maybe NTP3000A audio block has
problems. Replace it
Check EDID NVRAM (IC800)
Power #8 & I2C Signal (#5, #6)
Replace it or redownload
Y
N
12. AV Audio
Check Audio output
Y
Follow procedure external
input video trouble
shooting
N
Check Connector
JK600(AV Rear L/R)
Replace connector
N
Y
Check signal
R613,R614(AV Rear L/R)
Replace it
N
Y
Check Q711 power voltage level 16V
Replace it
N
Y
Maybe NTP3000A has problems
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TS_CLK TS_SYNC TS_VALID TS[0-7] /TS_ERROR
PM_TS_CLK PM_TS_SYNC PM_TS_VALID PM_TS[0-7]
IF_P IF_N
HDMI_DATA HDMI_CLK
REAR AV
HDMI
MSTAR (IC100)
LGDT 3304 (IC400)
FPGA
(IC1000)
VCOMO
REAR_CVBS REAR_L REAR_R
LVDS WAFER
TPA 6110A (IC502)
NTP 3000A (IC500)
DATA SCLK LRCLK MCLK
HP_L HP_R
DATA CLK
MODULE
MAIN SPK
H/P OUT
DIGITAL
ANALOG
VIDEO
AUDIO
TUNER
TDVF-H071P
(TU400)
Pillow SPK
REAR AV_L,R
REAR_L REAR_R (FOR DVI SOUND INPUT)
BLOCK DIAGRAM
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300
200
510
830
500
120
122
123
540
530
560
820
400
401
EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
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