LG 50PX950-SA (CHASSIS:PB01B) Service Manual ▷ View online
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Q1
2SC3875S(ALY)
2SC3875S(ALY)
0TR387500AA
E
B
C
R1
4.7K
4.7K
R2
4.7K
4.7K
OPT
LD1
LD2
LD3
5V_Power
PWM
R7
200
R11
200
C1
10uF
6.3V
P1
12507WR-03L
1
2
3
4
R8
200
VER 1.0
2009.06.24
BREATHING LED
1
1
EAX61392701
Breathing_LED
5V_MULTI
GND
PK90 Breathing LED
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
LD101
LUW T6SG-ABBA-4N7Q
EAV59588801
Q102
2SC3875S(ALY)
E
B
C
LD103
LUW T6SG-ABBA-4N7Q
EAV59588801
IC101
CM3212HPA3OP
EBD60010902
3
SAHS
2
SDA
4
SET
1
GND
6
VDD
5
SCK
C103
0.1uF
16V
R113
910K
1%
SDA-Sensor
SCL-Sensor
+3.3V
+3.3V_ST
C100
10uF
16V
ZD102
5.6B
ZD101
5.6B
ZD100
5.6B
+3.3V_ST
5V_Multi
LED-WHITE
+3.3V
LD100
LR T67F-V1AA-1
EAV59588901
Q101
2SC3875S(ALY)
E
B
C
LED-RED
+3.3V_ST
IR
K2-VOL+
K1-POWER
K2-OK
K2-MENU
K2-VOL-
K1-INPUT
K1-CH+
K1-CH-
C102
0.1uF
16V
C107
10uF
16V
ZD103
5.6B
ESD OPT
K1-POWER
K2-VOL-
K1-INPUT
SDA-Sensor
+3.3V_ST
K1-CH+
ZD104
5.6B
ESD OPT
K2-MENU
K2-OK
C101
0.1uF
16V
KEY2
SCL-Sensor
KEY1
K1-CH-
K2-VOL+
+3.3V
LED-RED
C105
READY
LED-WHITE
IR
C106
READY
KEY1
P100
12507WS-12L
EAG58732902
12507WS-12L
EAG58732902
1 IR
2 GND
3 KEY1
4 KEY2
5 LED_RED
6 GND
7 SCL
8 SDA
9 GND
10 +3.3V_ST
11 +3.3V
12 LED_WHITE
13
KEY2
+3.3V_ST
SCL-Sensor
SDA-Sensor
5V_Multi
R104
620
R105
10K
R106
3.6K
R107
620
R108
27K
R109
10K
R110
3.6K
R111
27K
C108
33uF
10V
10V
READY
C109
33uF
10V
10V
READY
R100
2K
R101
2K
R102
4.7K
ADDR_0x90
R117
4.7K
4.7K
R112
4.7K
4.7K
READY
R103
0
ADDR_0x70
R114
330
330
R120
2.2K
R121
82
R123
82
R118
4.7K
4.7K
R129
0
R138
0
0
IC103
AP2121N-3.3TRE1
1
GND
2
VOUT
3
VIN
5V_Multi
+3.3V
C111
10uF
6.3V
C110
10uF
6.3V
R132
220
220
R130
220
220
R131
220
220
R137
220
220
R136
220
220
R135
220
220
R134
220
220
R133
220
220
P101
3019-56108_8P
EAG61171201
1
2
3
4
5
6
7
8
9
ZD105
5.6B
IC100
CT1C08_MLF24
EAN60986201
1
D2
3
D4
7
VDD
9
CS0
10
CS1
11
CS2
12
CS3
13 CS4
14 CS5
15 CS6
16 CS7
17 NC_2
18 NC_3
19
I2C_CS0
20
I2C_SCL
21
I2C_SDA
22
GND
23
D0
24
D1
5
D6
8
NC_1
6
D7
4
D5
2
D3_INTB
ZD107
5.6B
ZD106
5.6B
IC102
KSM-983TM2CL(LG)
1
VOUT
2
GND
3
VCC
R139
47
GREEN EYE SENSOR
IR RECEIVER
$0.1
$0.066
$0.176
$0.176
$0.355
$0.1295
GP2 PK90/70
EAX61369001
2010/05/07
Touch Film to IR B/D
IR B/D to Main B/D
0.2V
0.9V
0.2V
0.9V
1.6V
$0.38
1.6V
2.3V
2.3V
TOUCH SENSOR
Test Point
for Dubugging
SCL/SDA/VDD/GND <==Must Naming
2mm Pitch (1mm size)
for Dubugging
SCL/SDA/VDD/GND <==Must Naming
2mm Pitch (1mm size)
$0.09115
07/14 : Add TP 8EA for Test Jig (at P101)
< Modification List >
LED Position !!!
B.W - RED - B.W
LD101 - LD100 - LD103
B.W - RED - B.W
LD101 - LD100 - LD103
: Delete LD102
08/17 : Change R104,R107(1K ->620), R106,R110(4.3K->3.6K)
Integration
09/08 : Change Resister size(1608 -> 1005) [All Resistors]
Integration block added at LED Red (C108,C109, R129,R138)
ESD protection block added at 8pin wafer (R130 ~ R137, 1KOhm)
Integration
LED
5V_Multi -> +3.3V
09/24 : Change the Power Path : Add LDO Block for +5V -> +3.3V
11/13 : Change Touch sensing line Serial resister : 1K -> 220 ohm
Default Setting : 0X70
Add ESD Diode to 3.3V_ST(ZD105)
05/07 : Add R139 for IR ESD,& CSR Open(BD)
12/23 : Add ESD Diode to LED Base(ZD106,ZD107)
ATSC Group Brazil Team
Great Company Great People
Last updated 2010.8.6
SBTVD BCM 3D BBTV Training manual
(PB01B)
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(PB01B)
Contents
- Block Diagram
- System Design
- Trouble Shooting Guide
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