LG 19LE5300 (CHASSIS:LA01A) Service Manual ▷ View online
10. Analog TV Audio
Check RF Cable & Signal
Follow procedure
‘8. All source audio’
trouble shooting guide.
ok
Check Tuner 3.3V Power
L5003
Replace L5003
Check Tuner 1.2V Power
IC5001 2 pin : 1.2V
Check CVBS Signal
TU5001 11 Pin
Replace IC5001.
Check Tuner 5V Power
L5002
Check IC401
ok
ok
ok
ok
No
No
No
No
Replace IC7511
No
Bad Tuner. Replace Tuner.
Replace L5002
ok
12. Component Audio
Check Component Cable
for damage or open conductor.
Check JK9800 & Signal Line
ok
ok
No
Replace Jack
11. AV Audio
Check AV Cable for damage
for damage or open conductor
Check JK9800
& Signal Line
ok
ok
No
Replace Jack
Follow procedure
‘8. All source audio’
trouble shooting guide.
Follow procedure
‘8. All source audio’
trouble shooting guide.
13. RGB Audio
Check Cable conductors
for damage or open conductor
Check JK1104 & Signal Line
ok
No
ok
Replace Jack
Follow procedure
‘8. All source audio’
trouble shooting guide.
LG Electronics/ LCD TV Division
LCD TV Gr.
LA01A Block Diagram
Video Signal Block
Video Signal Block
Audio Signal Block
Audio Signal Block
Flash & EJTAG Block
Flash & EJTAG Block
Overall Block Diagram
Overall Block Diagram
< Contents >
D-sub RGB
HDMI 1
CVBS, L/R
DDR3 (1Gbit)
H5TQ1G63BFR-H9C
NAND Flash
(1Gbit)
Digital Audio
(Optic)
USB
Digital AMP
NTP7100
I2S
NVRAM
RGB/H/V
DDR_Data[0:15], DQS, DM …
DDR3 (1Gbit)
H5TQ1G63BFR-H9C
Data[16:31]
Addr.[ ], ctrl. data
MAX3232
PCM_A [0 … 7]
IF +/-
SIF
TU_CVBS
X-tal 24MHz
Reset / IF_AGC …
SDA/SCL_5V
AV1
Component
Y Pb Pr, L/R
CS ,RE,WE……
Audio L/R
Audio L/R
(for RGB)
HDMI 3
(26” only)
SPDIF
DP/DM/ +5V
RX/TX
RX/TX
12MHz
JACK PACK
JACK PACK
at REAR
at REAR
SCL, SDA_3.3V
LVDS
LCD Module
(HD / 60Hz)
RF
MSD301KIV
RS-232C
(CTRL./SVC)
TDVJ
-
H001F
HP_L/R
Earphone AMP
TPA6110A2DGNRG4
JACK PACK
JACK PACK
at Side
at Side
Earphone
HDMI 2
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