LG 55LH85 User Manual

INPUT MAIN IC
AV
Component
HDMI
RGB
LGE3159
Analog
Digital
WIRELESS MODEL
SIGNAL
CONVERTER
DTC30LM36 +
SIL9134
LVDS
MEDIA-BOX
TX MODULE
HDMI
SIL9125 +
SB9120 +
SB9110
RX MODULE
SB9111 +
SB9121 +
SIL9134
MAIN IC
LCD
MODULE
LGE3369 +
LGE7329
LGD V4
LVDS
Wireless
TV SET
HDMI
a b c d e f g
WIRELESS LH80/LH85
Service
only
HDMI JACK
HDMI5
HDMI JACK
Wired
HDMI CABLE
▶ Check main ic basic power & power
sequence
▶ Control line check (I2C & etc)
▶ Check input/output video & audio
signal
No effect directly
No effect directly
No connection
Bad image
- IC’s cold soldering or memory defect accompanied noise on osd
Bad sound / No sound
Wireless connecting osd is displayed continually
- There is no video signal from Rx module to TV main ic, so TV
understand this time like disconnection state and display
connecting
osd continually. And then, if TV is not activated rightly within
15min,
it will go to st-by mode.
b
▶ Check power & control line
▶ Check input/output signal
▶ Check inner HDMI cable connection
status
(There can be cable’s defect.)
No effect directly
No connection
Bad image / Bad or No sound
Wireless connecting osd is displayed continually
-No image
C
No effect directly
Wireless connection
▶ Check the EDID of HDMI & RGB
▶ Check cable & contact error
Bad (noise) image / No image
- osd is good
Bad sound / No sound
a
CheckSymptomsDefect block
Trouble shooting
OSD OSD
＊Focused on Wireless connection

LG 55LH85 Specifications

General

Brand	LG
Model	55LH85
Category	LCD TV
Language	English