LG 42LG61 (CHASSIS:LA84B) Service Manual ▷ View online
- 17 -
10. ISP Download (option)
10.1 Overview
The Micom upgrade via the external port for the service for
the customer.
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)
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
- 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)
- 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))
selected as Hex file (*.hex))
4) Click 'Send Button'
Main B/D
Interface B/D
- 18 -
TROUBLESHOOTING
A
T
/NT Tune
r
BCM3553
F
M
S6400
CVB
S
IF_V
SB/
QAM
SD_CVBS
1
ED
S
A
FE_I
F_
N
ED
S
A
FE_I
F_P
AV
1
SD_CVBS
3
Component1
SD_
Y
1
SD_PR1
SD_PB1
Component2
SD_
Y
2
SD_PR2
SD_PB2
RGB
SD_R
SD_
G
SD_B
RGB
_HS
YNC
RGB
_V
S
Y
NC
PI
3HDMI
3
4
1
ART
HDMI0
HDMI_RX
_
0
_CL
K_N
HDMI_RX
_
0
_CL
K_P
H
D
M
I_
R
X_0_
D
A
T
A
0_N
H
D
M
I_
R
X_0_
D
A
T
A
0_P
H
D
M
I_
R
X_0_
D
A
T
A
1_N
H
D
M
I_
R
X_0_
D
A
T
A
1_P
H
D
M
I_
R
X_0_
D
A
T
A
2_N
H
D
M
I_
R
X_0_
D
A
T
A
2_P
L
V
D
S
_T
X_0_
D
A
T
A
_0_N
L
V
D
S
_T
X_0_
D
A
T
A
_0_P
L
V
D
S
_T
X_0_
D
A
T
A
_1_N
L
V
D
S
_T
X_0_
D
A
T
A
_1_P
L
V
D
S
_T
X_0_
D
A
T
A
_2_N
L
V
D
S
_T
X_0_
D
A
T
A
_2_P
L
V
D
S
_T
X_0_
D
A
T
A
_3_N
L
V
D
S
_T
X_0_
D
A
T
A
_3_P
L
V
D
S
_T
X_0_
D
A
T
A
_4_N
L
V
D
S
_T
X_0_
D
A
T
A
_4_P
L
V
D
S
_T
X_1_
D
A
T
A
_0_N
L
V
D
S
_T
X_1_
D
A
T
A
_0_P
L
V
D
S
_T
X_1_
D
A
T
A
_1_N
L
V
D
S
_T
X_1_
D
A
T
A
_1_P
L
V
D
S
_T
X_1_
D
A
T
A
_2_N
L
V
D
S
_T
X_1_
D
A
T
A
_2_P
L
V
D
S
_T
X_1_
D
A
T
A
_3_N
L
V
D
S
_T
X_1_
D
A
T
A
_3_P
L
V
D
S
_T
X_1_
D
A
T
A
_4_N
L
V
D
S
_T
X_1_
D
A
T
A
_4_P
LVDS
_
T
X
_
0
_CL
K_N
LVDS
_
T
X
_
0
_
CL
K_P
LVDS
_
T
X
_
1
_CL
K_N
LVDS
_
T
X
_
1
_
CL
K_P
LVDS
T
M
D
S
141H
AR
F
R
C
-9459
M
LVDS( Module
)
HDMI_RX
_
1
_CL
K_N
HDMI_RX
_
1
_CL
K_P
H
D
M
I_
R
X_1_
D
A
T
A
0_N
H
D
M
I_
R
X_1_
D
A
T
A
0_P
H
D
M
I_
R
X_1_
D
A
T
A
1_N
H
D
M
I_
R
X_1_
D
A
T
A
1_P
H
D
M
I_
R
X_1_
D
A
T
A
2_N
H
D
M
I_
R
X_1_
D
A
T
A
2_P
HDMI1
HDMI4
- 19 -
Ch
eck T
U
1 Pin
16(Vid
eo
o
u
tp
u
t)
Can
y
o
u
see t
h
e n
o
rmal sign
al?
Ch
eck th
e in
pu
t(Pin
1) o
f L
P
F(IC808).
Can
y
o
u
see t
h
e n
o
rmal
w
a
v
e
fo
rm?
YES
NO
Co
u
ld
y
o
u
measu
re
v
o
ltag
e o
f T
U
1 & IIC
lin
es?
A
re they
all normal?
Ch
eck th
e o
u
tp
u
t(Pin
8)
o
f LPF
(IC808).
Can
y
o
u
see t
h
e n
o
rmal
w
a
v
e
fo
rm?
Ch
eck th
e in
pu
t(Pin
A
N
16) o
f BCM355
3(IC
100).
Measu
re
w
a
v
e
fo
rm at C658
b
ecau
se it
ís
mo
re eas
y
to
ch
eck.
Can
y
o
u
see t
h
e n
o
rmal
w
a
v
e
fo
rm?
NO
Yo
u
sh
ou
ld ch
eck p
o
w
e
r
lin
e
& IIC li
nes.
YES
Yo
u
sh
ou
ld rep
lace T
UNER.
NO
A
ft
e
r ch
ec
kin
g
v
id
e
o
sig
n
a
l lin
e & th
e Pow
e
r o
f L
P
F y
o
u
sh
o
u
ld
d
ecid
e to
rep
lace item o
r n
o
t.
NO
A
ft
e
r ch
ec
kin
g
th
e Po
w
e
r
of L
P
F y
o
u
sh
ou
ld
d
ecid
e to
rep
lace L
P
F
o
r n
o
t.
This board ha
s big
problem
because Ma
in chip(BCM3553) ha
v
e
some troubles.
A
ft
e
r ch
ec
kin
g
th
o
rou
g
h
ly
all p
a
th
o
n
ce
ag
ain
, You
sho
u
ld d
ecid
e
to rep
lace BCM
3553 o
r n
o
t.
YES
YES
NO
Ch
eck all p
o
w
e
r d
o
m
ain
o
f
FRC-9459M (IC1000)
(3.3V, 1.3V_C
ORE,1.3V_PL
L
,3.3V,1.8V,2.5V)
& cr
y
s
tal output (X1000 / 20.25MHz)&FR
C_RESET
Measu
re Po
w
e
r &
w
a
v
e
fo
rm
at L
1008,L
1007,L
1002,L
1013,
L
1014,L
101
5~
L
1018&
C10
06
&R10
29
b
ecau
se it
ís
mo
re eas
y
to
ch
eck.
Can
y
o
u
see t
h
e n
o
rmal
w
a
v
e
fo
rm?
YES
This board ha
s big
problem
because FR
C chip(FRC-9459M) hav
e
some troubles.
A
ft
e
r ch
ec
kin
g
th
o
rou
g
h
ly
all p
a
th
o
n
ce
ag
ain
, You
sho
u
ld d
ecid
e
to rep
lace
FRC-945
9M.
A
lthough y
ou
replace it, y
ou cannot see no
rmal display
, decide to replace
Main
ch
ip
(BC
M3553)
YES
TA/CATV
- 20 -
Ch
eck JK
701, JK70
7
Can
y
o
u
see t
h
e n
o
rmal
w
a
v
e
fo
rm?
NO
JK70
1,JK7
07
ma
y
h
a
v
e
p
ro
b
lem. Rep
lace th
is Jack.
Ch
eck th
e in
pu
t (Pin
A
N
17,A
M
1
9) o
f BCM
3553(IC100).
Measu
re
w
a
v
e
fo
rm at C651,
C652 b
e
c
a
u
s
e
it
ís
mo
re eas
y
to
ch
eck.
Can
y
o
u
see t
h
e n
o
rmal
w
a
v
e
fo
rm?
NO
YES
This board ha
s big
problem
because Ma
in chip(BCM3553) ha
v
e
some troubles.
A
ft
e
r ch
ec
kin
g
th
o
rou
g
h
ly
all p
a
th
o
n
ce
ag
ain
, You
sho
u
ld d
ecid
e
to rep
lace BCM
3553 o
r n
o
t.
Ch
eck all p
o
w
e
r d
o
m
ain
o
f
FRC-945
9M (IC100
0)
(3.3V, 1.3V_C
ORE,1.3V_PL
L
,3.3V,1.8V,2.5V)
& cr
y
s
tal output (X1000 / 20.25MHz)&FR
C_RESET
Measu
re Po
w
e
r &
w
a
v
e
fo
rm
at L
1008,L
1007,L
1002,L
1013,
L
1014,L
101
5~
L
1018&
C10
06
&R10
29
b
ecau
se it
ís
mo
re eas
y
to
ch
eck.
Can
y
o
u
see t
h
e n
o
rmal
w
a
v
e
fo
rm?
YES
This board ha
s big
problem
because FR
C chip(FRC-9459M) hav
e
some troubles.
A
ft
e
r ch
ec
kin
g
th
o
rou
g
h
ly
all p
a
th
o
n
ce
ag
ain
, You
sho
u
ld d
ecid
e
to rep
lace
FRC-945
9M.
A
lthough y
ou
replace it, y
ou cannot see no
rmal display
, decide to replace
M
a
in
c
h
ip
(B
C
M
3553
)
YES
AV
Click on the first or last page to see other 42LG61 (CHASSIS:LA84B) service manuals if exist.