LG 50PX950-AA (CHASSIS:PA02B) Service Manual ▷ View online
Changes List : Module
To improve 3D Crosstalk, change R/G fluorescent substance (Afterglow time 10㎳ Æ 4㎳ )
New ASIC for 3D (A1.0) and apply 3D sustain waveform
New ASIC for 3D (A1.0) and apply 3D sustain waveform
As is (60R1)
To be (60R1X 3D)
panel
▶ fluorescent substance
- Afterglow time : 4ms(R,G)
▶ 3D Cross Talk ratio
- About 2.5%
▶ color temp : 7200K↑
▶ brightness : 410cd/m
▶ brightness : 410cd/m
2
▶ fluorescent substance
- Afterglow time: 10ms (R,G)
▶ 3D Cross Talk ratio
- 17%
▶ color temp : 6500K
▶ brightness : 500cd/m
▶ brightness : 500cd/m
2
R1
▶ ISIS-F3.0
- not support 3D
- apply DCC
▶ 51pin LVDS Cable
cir
c
uit / tool
▶ ISIS-A1.0
- support 3D
- apply DPCS
▶ 80pin & 51pin LVDS Cable
- L / R Image Input
▶ Apply 3D Formatter B/D
Main B/D
Ctrl B/D
ISIS A1.0
3DF B/D
wa
v
e
fo
rm
SF1
(LSB)
SF2
SF8
SF1
(MSB)
▶ SF : 9
▶ 1
▶ 1
st
LSB SF Mapping
. . . .
SF4
(LSB)
SF1
(MSB)
SF4
(LSB)
▶ SF : 4(L) + 4(R)
▶ 1
▶ 1
st
MSB SF Mapping
SF9
(MSB)
Right Image
Left Image
2D SF Mapping
3D SF Mapping
Main B/D
Ctrl B/D
ISIS F3.0
Time
0
1
65% 35%
10ms
0
1
90% 10%
4ms
Time
R1 3D
P
O
w
E
R
B
O
A
R
D
R
D
+3.3V_ST
BCM
DDR2x4
1G 8Bit
IC100
BCM
STBY
NEC Micom
EEPROM(NEC)
MAX3232
+3.3V_NEC_ST
D1.8V
+5V_ST
INSTANT_BOOT
P906(SUB B/D)
P_17V
IC700
(ST AMP)
WIRELESS
Multi Power
SPEC : 2A↓
L511
P17V_WIRELESS
IC500
(3.3V Reg)
SPEC : 2A
IC501
(DCDC)
Max 3A
1440mA (Volume max 기준)
D1.8V
L505
L704
IC800
(HDMI
Switch)
Block Diagram – PSU
BUZZER
IC701
AUDIO AMP
IC504
(DCDC)
L520
+5V_TU
L1304
L503
1.2V_TU
1100mA
※ INSTANT BOOT
IC502
(DCDC)
A1.2V
3.25V
A3.3V
D3.3V
P_5V
SPEC : 5A↓
Q501
+5V_MULTI
+5V_TU
v
L510
+5V_USB
L512
IC505
(3.3V Reg)
Max 4.4A
Max 3A
TUNER
+3.3V_MULTI
L515
L518
+3.3V_HDMI
예상:4.5A
RGB
EEPROM
IC903
(SYNC)
IC700(AMP)
IC100(EEPROM)
IC102(Flash)
L801
+3.3V_TU
+3.3V_USB_HUB
A2.5V
IC800
(HDMI Switch)
L800
+1.8V_HDMI
L500
Max 4A
L516
L519
TUNER
IC600
(1.2V Reg)
L602
OPTION
L1200
L703
ETHERNET
L509
D1.2V
D1.8V
+3.3V_TU
1.83V
3.24V
3.24V
3.24V
3.23V
3.23V
2.49V
1.21V
1.18V
1.79V
4.98V
5.01V
16.91V
16.91V
56mV
56mV
44mV
52mV
52mV
56mV
80mV
56mV
5.08V
58mV
5.04V
34mV
48mV
5.03V
IC503
(2.5V)
L1201
IC1100
(USB HUB)
Power Flow Diagram
<BCM Power Sequence>
P814
1
17V
2
17V
3
GND
4
GND
5
5V
6
5V
7
5V
8
Error_DET
9
GND
10
GND
11
GND
12
GND
13
STBY
14
STBY
15
RL_ON
16
AC DET
17
M_ON
18
AUTO_GND
SMAW200-H18S2
PDP TV Repair Process Index
- Trouble shooting by worst symptom
No.
Symptom (L)
Symptom (M)
Page
Remark
1
A. Picture Problem
No Picture/Sound OK
1
2
No Picture/No sound
2
3
Mal-discharge/Noise/dark picture
3
4
Picture broken/Freezing
4
5
Vertical bar/ Horizontal Bar
5
6
B. Power Problem
No Power (Not turn on)
6
7
Turn off (Instant, under watching)
7
8
C. Sound Problem
No sound/ Sound distortion
8
9
E. General function Problem
Remote control & Local switch checking
9
First of all, Check whether there is SVC Bulletin in GCSC System for these model.
Click on the first or last page to see other 50PX950-AA (CHASSIS:PA02B) service manuals if exist.