DOWNLOAD LG 52LG72-UA (CHASSIS:LA86B) Service Manual ↓ Size: 3.74 MB | Pages: 46 in PDF or view online for FREE

Model
52LG72-UA (CHASSIS:LA86B)
Pages
46
Size
3.74 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
52lg72-ua-chassis-la86b.pdf
Date

LG 52LG72-UA (CHASSIS:LA86B) Service Manual ▷ View online

- 17 -
C
2008
10. ISP Download (option)
10.1 Overview  
The Micom upgrade via the external port for the service for
the customer.
10.2 Device to use  
1) PC
2) B/D for the interface (IIC & ISP)
3) Jig for downloading (for the power supply)
10.3 Adjustment wiring diagram (Download device
configuration diagram) 
10.4 Adjustment condition (Download condition)  
IC name & Circuit number: MYSON MTV416GMF & IC4015
- Power supply: 5V (P4004 Pin 3)
- SCL: D-sub Pin 10
- SDA: D-sub Pin  7
10.5 How to adjust (for downloading) 
1) fter executing LGE Monitor Tools v1.1, click the first icon.
(See the figure)
2) When the screen is displayed as shown at the below
figure, set the items as follows:
- MCU Select: MTV512M64
- R/W Option: Auto Write(Verify)
- Jig Option: Myson
- Transmit Speed: Medium
- Check: blank
- PORT: Select the Parallel Port to use (LPT1 in general)
*caution: Select the EPP as LPT from the ROM BIAS setting.
3) Click the Load File Button, and select the desired Hex File
to download.
(If no file is displayed, make sure that the file format is
selected as Hex file (*.hex))
4) Click 'Send Button'
Main B/D
Interface B/D
- 18 -
C
2008
11. USB S/W Download (option)
11.1 Overview  
The USB download is for the quick service response via
the S/W upgrade and for applying the S/W upgrade
necessary for the board adjustment
11.2 How to dowunload  
1) After turning on the set, make sure that the display screen
is turned on.
2) When the USB Memory Stick with the upgrade file applied
is inserted into the USB jack on the main board, the
following screen (example) is displayed after several
seconds
3) Check the current version at [Current TV Software Version
Information], check the S/W version to upgrade at [New
Found TV Software Version Information], and press the
Enter button of the TV remote controller.
4) Downloading is proceeded as shown at the below screen,
and when it is ended, turning on/off is automatically done.
(When the automatic proceeding is not smoothly done,
manually perform the power On/Off).
5) When downloading is ended, remove the USB Memory
Stick from the USB jack.
6) Press the IN-START button of the remote controller to
check the upgraded S/W version.
- 19 -
C
2008
Audio L/R
Flash
(1
6MB)
DDR(
3
2
MB)
(4x16x
4
)
DDR(
3
2
MB)
(4x16x
4
)
74LVC14APW 
TEA6420D
(Audio SW)
MC
33078
(AMP)
C
S
5340
(A/D)
MTV416
(Micom)
NTP
3
0
0
0
(D-AMP)
X200
X-tal(54
)
PI
3HDMI
3
4
1
ATR
(3x1,S/W
)
EEPROM
A
T
/NT Tune
r
64Bit I/F
R
eset
CVBS
CVBS/Y/C
Y/Cb/Cr
R/G/B 
H/V Sy
nc
Audio L/R
I2S
MNT out
(L/R) 
SPDIF
OUT
I2S
Dual LVDS
Connector (FHD)
Full H
D
(1080
P)
RS-232
C
Dead IC 
w
h
e
n
 Standby
A
li
v
e IC 
w
h
en 
Standby
Video 
Fro
nt
 
End
Du
al
HDMI
Rx
HD/SD
Video
Encoder
Aud
io
DSP
BCM3552(HD)
BCM3553(FHD)
MCLK
MCLK
HDMI CEC
HDMI CEC(To
M
ico
m)
To Micom
SDA
SCL
SIF
IF(AT)
Buffer 
Digital out
Single LVDS
Connector(HD)
Digital out
W
X
GA
(768P)
IR & Local
 KEY
Buffer
Buffer
24
C16
AGC CTL (F
ro
m BCM)
USB2.
0
I2S Audio Input
VSB/
QAM/NTSC/S
IF
AV
1
AV
2
COMP
1
COMP
2
CVBS
DDR(
3
2
MB)
(4x16x
4
)
DDR(
3
2
MB)
(4x16x
4
)
DDR(
3
2
MB)
(4x16x
4
)
DDR(
3
2
MB)
(4x16x
4
)
DDR(
3
2
MB)
(4x16x
4
)
DDR(
3
2
MB)
(4x16x
4
)
DDR (1
2
8
MB)
RGB
Y/Cb/Cr
HDMI1
HDMI2
HDMI3
AV
1
AV
2
COMP
1
COMP
2
RGB
C
o
axia
l
OUT (L
G
5
0)
USB
LG30: HD
LG50: FHD
X400
X-tal(24
)
NVRAM
24
C512
EE
PRO
M
EE
PRO
M
EE
PRO
M
TROUBLESHOOTING & BLOCK DIAGRAM
- 20 -
C
2008
LCD I2C map
BCM35
5
2
BCM35
5
3
I2
C Ma
st
er
I2C_CH
0
 (+5.
0V
)
I2C_CH
1
 (+5.
0V
)
I2C_CH
2
 (+3.
3V
)
Live
D
ead
CH0
CH1
CH2
I2C_CH
3
 (+3.
3V
)
CH3
TU1
AT
/N
T Tune
r
T
D
V
F
-H
051
F
[0
x
C
2]
IC
403
NVRAM
24L
C512
[0
xA6
]
IC
501
DAS
P
N
T
P3000
[0
X54]
IC
407
MICOM
M
T
V
416G
M
F
[0
x50]
IC
102
EE
PRO
M
CAT2
4
C
0
8
[0
xA0
]
IC
500
AUDI
O S
/W
T
E
A6420
D
[0
x9A
]
IR assíy
R:0x20
D
-ey
  
  
 G:0x70
LG50_on
ly
  
B
:0x90
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