Lg Electronics 47LE8500 Manuale Utente
Q?
L8804 L8805
P8800
P8200
Q8200
Q8201
D8306
Q8300
Q8303
Q8301
Q8304
D8307
IC8400
Q8302
Q8305
D8309
Q8700
IC
870
0
Q8701
Q8205
Q8203
47LE8500 INTERCONNECT DIAGRAM
Intelligent Sensor
Intelligent Sensor
Intelligent Sensor
Stand-by
P8200 "MAIN Board" To CON1 "IR Board"
Indicates Hot
Ground
SMPS TEST 1
P
201
A
PW
R
R
O
N
3
1
7
5
11
9
15
13
19
17
21
4
2
8
6
12
10
16
14
20
18
22
23
24
ST
B
B
Y
3.
5V
12V
12V
ST
B
B
Y 3.
5V
24V
24V
24V
12V
IN
V
-O
N
B
SMPS TEST 2
P2
01
A
PW
R
R
ON
3
1
7
5
11
9
15
13
19
17
21
4
2
8
6
12
10
16
14
20
18
22
23
24
ST
B
B
Y 3.
5
V
12V
12V
ST
B
B
Y 3.
5
V
24V
24V
24V
12V
Front pins on connector
are odd numbers.
are odd numbers.
Front pins on connector
are odd numbers.
are odd numbers.
INVERTER (SECONDARY)
Both Inverters p/n: AFB72950101
CN1
LE
D E
xte
ns
D E
xte
ns
ion
Bo
ard
Bo
ard
CN2
LE
D Ext
D Ext
ens
ion
Bo
ar
ion
Bo
ar
d
CN12
CN13
LE
D E
xte
D E
xte
nsi
on
Bo
ard
on
Bo
ard
V73~V80
V81~V88
V1~V8
V9~V16
V17~V24
V25~V32
V33~V40
V41~V48
V49~V56
CN23
CN24
To the Panel
P204 "SMPS" To CN1 "INVERTER Main"
Diode Check
9
IR
1.57V
Open
10
Gnd
Gnd
Gnd
11 3.3V_Normal
0V
0.59V
12
LED_BUZZ
0V
Open
Pin
Label
STBY
Run
1.54V
Gnd
3.3V
0V
7
Gnd
Gnd
Gnd
Gnd
8
LED_LOGO
0V
0V
Open
Pin
Label
STBY Run
1
SCL
3.45V 3.45V
Open
2
SDA
3.45V 3.45V
Open
3
Gnd
Gnd
Gnd
Gnd
4
Key1
3.29V 3.29V
1.9V
5
Key2
3.29V 3.29V
1.9V
6
3.5V_ST
3.45V 3.45V
1.24V
Diode Check
P7901 "MAIN Board" To CN103 "Inverter Main"
Pin
Label
STBY
Run Diode
1
R_VS
0V
0.04V
Open
2
3
M2_MOSI
0V
*0.04V~3.2V
1.1V
4
Gnd
Gnd
Gnd
Gnd
5
6
7
8
M2_SCLK
0.23V
1.1V
0V
Gnd
Gnd
Gnd
Gnd
M3_MOSI
0V
1.1V
M3_SCLK
1.1V
0V
Gnd
Gnd
Gnd
Gnd
0V
0V
*Black to White
*Black to White
P7900 "MAIN Board" To CN1 "Inverter Main"
Pin
Label
STBY
Run Diode
1
L_VS
0V
0.05V
1.08V
2
M0_MOSI
0V
*0.04V~3.2V 1.08V
3
M0_SCLK
0V
0.23V
1.08V
4
Gnd
Gnd
Gnd
Gnd
5
M1_MOSI
0V
*0.04V~3.2V 1.08V
6
M1_SCLK
0V
0.23V
1.08V
7
Gnd
Gnd
Gnd
Gnd
8
S_CS_N
0V
2.6V
1.08V
9
S_MOSI
0V
*0.18V~0.28V 1.08V
10
S_SCLK
0V
1.08V
2.99V
P8800 "Main" To "Speakers"
Pin
SBY
Run
Diode
1
SPK-R(-)
0V
12.3V
Open
2
SPK-R(+)
0V
12.3V
Open
3
SPK-L(-)
0V
12.3V
Open
4
SPK-L(+)
0V
12.3V
Open
Label
(1)
PDIM Pin 20 can vary according to incoming video IRE level,
OSD Backlight setting and then Intelligent Sensor (room light
condition) Output from the Video Processor IC900.
Range 0.37V to 3.3V.
condition) Output from the Video Processor IC900.
Range 0.37V to 3.3V.
Front IR
IR Receiver
Intelligent
Sensor
CON1
Front “Soft Switch” Keys
CON3
CON2
LG Logo
CN25
CN26
CN27
CN28
CN29
CN30
CN31
CN32
CN33
V25~V32
V33~V40
V41~V48
V49~V56
V57~V64
V65~V72
V73~V80
V81~V88
V89~V96
CN10
100 IRE
3.68V p/p 120Hz
Note: If a particular block is exhibiting a dimmer level
that the other or the overall brightness seems dim, be
sure to first check the customer’s Menu setting for
Backlights. Raise the percentage and see if the overall
brightness returns to normal. If not,
1
that the other or the overall brightness seems dim, be
sure to first check the customer’s Menu setting for
Backlights. Raise the percentage and see if the overall
brightness returns to normal. If not,
1
st
: Check the P-DIM level, it should rise with the
percentage shown on screen. 100%, 3.3V. Follow the P-
DIM signal all the way to each Inverter.
2
DIM signal all the way to each Inverter.
2
nd
: Turn off the set and unplug the connector to the
Inverters coming from the Main board. If the brightness
returns to normal, the Main board is defective.
returns to normal, the Main board is defective.
Drive Signals
to LED Blocks
5 IRE
3.88V p/p 120Hz
Each connector (27 total) to the LED Blocks (216)
have two pins delivering B+ 13V and 8 Drive Signals
To force a Block to turn
on, simple ground the
pin providing the 13V
source is present.
on, simple ground the
pin providing the 13V
source is present.
CN11
CN4
CN5
CN6
CN7
CN8
CN9
CN3
CN22
CN14
CN15
CN16
CN17
CN18
CN19
CN20
CN21
SMPS TEST 1: To Force Power
Supply On.
Disconnect P8000 on Main board.
(A) Jump pins 9, 10, 11 or 12 (3.5V)
to pin 1. (Test Voltage Outputs 12V,
24V to Main and 24V to both
Inverters). Remove AC power.
Leave the jumper in place.
Supply On.
Disconnect P8000 on Main board.
(A) Jump pins 9, 10, 11 or 12 (3.5V)
to pin 1. (Test Voltage Outputs 12V,
24V to Main and 24V to both
Inverters). Remove AC power.
Leave the jumper in place.
SMPS TEST 2: (B) Jump pins 9, 10,
11 or 12 (3.5V) to pin 18 (INV-ON).
Apply AC power, the Backlights
should turn on.
11 or 12 (3.5V) to pin 18 (INV-ON).
Apply AC power, the Backlights
should turn on.
Note; If Inverter Main or Secondary
is loading down 24V, each Inverter
can be run separately:
Remove AC and Disconnect P204.
When AC is reapplied, the Backlight
LEDs on the Right (Back View)
should turn on.
Remove AC and Disconnect P205
and reinstall P204. When AC is
reapplied, the Backlight LEDs on the
Left (Back View) should turn on.
is loading down 24V, each Inverter
can be run separately:
Remove AC and Disconnect P204.
When AC is reapplied, the Backlight
LEDs on the Right (Back View)
should turn on.
Remove AC and Disconnect P205
and reinstall P204. When AC is
reapplied, the Backlight LEDs on the
Left (Back View) should turn on.
For Waveforms on P7900 and P7901
See 2
nd
page of Interconnect.
SK101
AC In
D221
T102
IC502
IC103
IC501
T501
F101
3.15A/250V
Q111
Q110
Q231
F100
6.3A/250V
CX
103
103
RL101
G
D
S
G
S
C
B
E
BD101
+
-
Q605
D602
G
D
S
D
S
C
A
A
Q606
D603
G
D
S
D
S
C
A
A
L600
L601
F501
3.15A/250V
47uF/
450V
47uF/
450V
47uF/
450V
47uF/
450V
47uF/
450V
47uF/
450V
T101
A1
A2
A1
C
D222
Q251
Q252
P201
P205
P204
C
A1
A2
D201
IC102
RL102
CX
102
102
CX101
D601
D100
D
F501 Hot Gnd
STBY 159.6V
Run 392.6V
F101 Hot Gnd
STBY 2.9V
Run 393.3V
D607
D102
D101
C = 3.45V
A1/A2 = 0V
SMPS BOARD
p/n: EAY60908801
A2
C
A
C
AC
IC603
IC605
P7500
P7501
IC8005
IC8900
X1001
Grayed out components
are on the back
54Mhz
P7901
L8015
Rubber
3
2
1
3
2
1
IC8007
IC8008
L8905 IC8903
IC8003
L8010
IC301
L8009
IC8001
IC302
L8004
IC901
IC8000
IC300
Q300
Q8004
Q8003
Q8001
Q8005
IC9102
L9100
L9102
L9101
IC9103
D9102
D9101
IC9302
L9301
IC8902
L8904
IC8002
L8012
IC700
SW9300
X9300
25Mhz
IC9300
P7900
X9000
12Mhz
12Mhz
P9000 Update
X8100
IC8101
SW8100
IC1000
SW1000
IC8004
IC8800
Q8800
IC8801
IC9100
IC8901
IC9301
LG5111 RX/TX
LG5111 RX/TX
IC9001
T-CON
T-CON
LG7378A
IC8300
MICRO
Q8306
Q8307
TU700
TDVJ-H031F
2. NC
1. NC
Analog Video
Digital Video
P9000
USB1
USB2
HDMI
HDMI
Select
IC606
IC602
IC604
Q8000Q8002
IC9303
IC9101
IC8100
D8312
Q8308
Q200
IC8401
Q702
Q701
Q901
18. IF p
17. IF n
16. IF AGC
16. IF AGC
15. Reset
14. 3.3V
13. 1.26V
12. GND
12. GND
11. CVBS
10. NC
9. SIF
9. SIF
8. NC
7. SDA
7. SDA
6. SCL
5. NC
4. NC
3. 5V
3. 5V
IC8200
IC9000
10
Mhz
X8101
32.768Khz
MAIN BOARD
p/n: EBU60842601
IC900
Video Processor
LGE3549XQ
S
D
G
G
A
C
AC
S
D
G
1
2
3
D
G
S
P8000
E
C
B
E
C B
E
C
B
E
C B
F101
12A/65V
C101
A
095
0
105
0
C
+
-
A
094
8
8
105
0
C
+
-
CN103
U103
L207
CN104
U3
E
C
B
E C
B
24.6V
3.3V
3.4V
CN105
U4
U5
U13
U2
U501
CN101
U101
Q106
Q105
N/C
E
C B
Q3
Q12
Q108
Q109
Q103
Q101
Q102
L206
Q501
12.8V
13V
24.6V
13V
DO NOT
MEASURE
C151
Y501
8Mhz
F1
12A/65V
U4
U5
U6
Q4
Q5
C75
A0950
105
105
0
C
+
-
A0950
105
105
0
C
+
-
C98
Q7
Q8
L101
L102
A0948
105
105
0
C
+
-
C89
CN11
U103
L103
CN3
CN2
CN4
CN5
U10
U1
U501
U7
U3
U11
U8
U13
E
C
B
Q10
U101
E
C
B
Q2
E
C
B
Q16
E
C
B
Q11
E
C
B
Q1
Q15
E
C
B
E
C B
Q3
Q12
24.6V
Gnd
3.3V
3.46V
13V
12.96V
13V
12.77V
24.6V
13V
13V
DO NOT
MEASURE
CN1
U102
U9
Y501
Y1
8Mhz
8Mhz
INVERTER (MAIN)
Both Inverters
p/n: AFB72950101
V105~V112
V113~V120
V121~V128
V29~V136
V137~V144
V145~V152
V153~V160
V161~V168
V169~V176
1
2
3
2
3
18.15V
24.6V
12.8V
12.8V
Q105
1
2
3
2
3
5V
12.8V
Gnd
Q106
1
2
3
2
3
18.3V
24.6V
12.9V
24.6V
12.9V
Q4 / Q7
1
2
3
2
3
5V
12.9V
Gnd
Q5 / Q8
Pin
Label
STBY
Run
1-5
24V
0V
24.6V
0.424V
6-10
GND
GND
GND
GND
11
(1)
P-DIM
0V
0.37V~3.3V
Open
12
(2)
I-C
0V
2.92V
Open
13
n/c
n/c
n/c
Open
14 ERROR
0V
0V
Open
Diode
(2)
I-C is Inverter On (INV_ON)
P205 "SMPS" To CN201 "INVERTER Secondary"
Pin
Label
STBY
Run Diode
1-5
24V
0V
24.6V
0.424V
6-10
GND
GND
GND
GND
11
0V
0.37V~3.3V
Open
12
0V
2.92V
Open
(1)
P-DIM
(2)
I-C
P8000
Pin
Label
STBY
Run Diode
1
PWR-ON
0V
3.3V
1.68V
2-4
24V
0V
24.6V
0.424V
5-8
Gnd
Gnd
Gnd
Gnd
9-12
3.5V
3.45V
3.44V
Open
13-15
Gnd
Gnd
Gnd
Gnd
16
n/c
n/c
n/c
Open
17
12V
0V
11.9V
1.39V
18
INV-ON
0V
2.92V
Open
19
12V
11.9V
1.39V
20
(1)
P-DIM
0V
0.37V~3.3V
Open
21
12V
11.9V
1.39V
22
n/c
n/c
0V
Open
23
n/c
n/c
0V
Open
24
ERROR
0V
0V
Open
P201 "SMPS" To P8000 "MAIN Board"
Diode
Gnd
Open
Open
Gnd
1.24V
Gnd
Open
Open
1.63V
Open
Open
Open
Open
Open
0V
0V
CON2 "IR Board" To "Soft Touch Key Board"
Pin
STBY
Run Diode
1
3.45V
3.36V Open
2
0V
1.63V Open
3
Gnd
Gnd
Gnd
4
3.3V
3.3V
Open
5
3.28V 3.28V Open
6
Gnd
Gnd
Gnd
7
3.45V 3.36V Open
8
3.45V 3.36V Open
Pin
STBY
Run Diode
1
3.45V
3.0V
1.5V
2
Gnd
Gnd
Gnd
3
1.36V 0.64V Open
4
Pin
STBY
Run Diode
CON3 "IR Board" To
"Center Logo Board"
"Center Logo Board"
Gnd
Gnd
Gnd
SW8100
Micro
Reset
SW1000
Video
Reset
Reset
SW9300
Tru-
Motion
Reset
P8100
Leandro
Palmeira