LG 55LH95QD - TROUBLESHOOTING PROCEDURES; Defect block d

INPUT MAIN IC
AV
Component
HDMI
RGB
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
LGD V4
LVDS
Wireless
TV SET
HDMI
a b c d e f g
WIRELESS LH95
Service
only
HDMI JACK
HDMI5
HDMI JACK
Wired
HDMI CABLE
Defect block Symptoms Wireless connection Check
d
e
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)
No connection
connection
F Bad image / No image
- IC’s cold soldering or memory defect accompanied noise on osd
Bad sound / No sound
No effect directly ▶ 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.)
g Bad image or No image No effect directly ▶ Ticon b/d or Inverter check
▶ Check power
▶ Check Wireless connecting osd
▶ Check inner HDMI cable connection
status
(There can be cable’s defect.)
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
LGE3369 +
LGE7329