INPUT
MAIN IC
AV
Component
HDMI
RGB
Analog
Digital
WIRELESS MODEL
SIGNAL
CONVERTER
DTC
SIL9134
LVDS
MEDIA-BOX
TX MODULE
HDMI
S
SB9110
RX MODULE
SIL9134
MAIN IC
LCD
MODULE
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
▶
Check control line (I2C & etc)
▶
Check input/output video & audio
signal
▶
Check LVDS cable & wafer locking
(There can be cable’s defect.)
No effect directly
Bad image / No image
- IC’s cold soldering or memory defect accompanied noise on osd
Bad sound / No sound
F
▶
Ticon b/d or Inverter check
▶
Check power
No effect directly
Bad image or No image
g
No connection
connection
Wireless connection
▶
Check Wireless connecting osd
▶
Check inner HDMI cable connection
status
(There can be cable’s defect.)
Wireless connection osd is displayed continually
- That osd can be appeared by HDMI cable or Jack defect even
though wireless connection is completed.
(only Rx module)
d
e
Check
Symptoms
Defect block
Trouble shooting
OSD
OSD
*
Defect block means from itself to ahead of next part.
*
Wireless TV is similar with the model using LGE3159 or LGE3369 except for wireless parts.
LGE3159
L
LGE7329
Summary of Contents for 55LH85 - - 54.6" LCD TV
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