DOWNLOAD LG 50PA4500-UF (CHASSIS:PU21A) Service Manual ↓ Size: 11.37 MB | Pages: 48 in PDF or view online for FREE

Model
50PA4500-UF (CHASSIS:PU21A)
Pages
48
Size
11.37 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
50pa4500-uf-chassis-pu21a.pdf
Date
PREV: LG 50PA4500-TM / 50PA4520-TJ (CHASSIS:PA23A) Service Manual

LG 50PA4500-UF (CHASSIS:PU21A) Service Manual ▷ View online

T
H
E
R
M
A
L
THERMAL
THERMAL
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.
C665
0.1uF 50V
R620
1
FNIM
Q600
MMBT3904(NXP)
READY
E
B
C
C673
0.22uF
50V
IC606
STA368BWG
26
GND_PLL
27
XTI
28
BICKI
29
LRCKI
30
SDI
31
RESET
32
INT_LINE
33
SDA
34
SCL
35
GND_DIG_2
36
VDD_DIG_2
17
OUT3B/FFX3B
3
TEST_MODE
6
OUT2B
16
CONFIG
15
VDD
14
GND_REG
13
OUT1A
12
GND1
11
VCC1
10
OUT1B
9
OUT2A
8
VCC2
7
GND2
4
VSS
5
VCC_REG
2
SA
21
VDD_DIG_1
1
GND_SUB
20
TWARN/OUT4A
19
EAPD/OUT4B
18
OUT3A/FFX3A
23
PWRDN
24
VDD_PLL
25
FILTER_PLL
22
GND_DIG_1
3
7
[EP]GND
P_17V
R646
22
DCON_EN
+5V_ST
R625
2.2
R654
51K
1%
IC605
TPS65253RHDR
1
ROSC
3
CMP1
7
BST1
9
LX1_1
10
LX1_2
11
LX2_1
12
LX2_2
13
VIN2
14
BST2
15
EN2
16
RLIM2
17
SS2
18
CMP2
19
FB2
20
LOW_P
21
V7V
22
V3V
23
GND_1
24
PGOOD
25
GND_2
26
GND_3
27
GND_4
28
GND_5
5
RLIM1
8
VIN1
6
EN1
4
SS1
2
FB1
29
[EP]GND
C679
1000pF
50V
R686
39
L612
10.0uH
+3.3V_ST
R640
22
C680
1000pF
50V
C655
0.047uF
25V
IC600
AP2121N-3.3TRE1 
1
GND
2
VOUT
3
VIN
C642
0.01uF
R685
39
L608
NR5040T3R3N
C621
0.1uF
50V
C667
0.1uF
50V
AMP_SDA
+3.3V
AMP_RESET_N
C668
68uF
35V
L600
120
L611
10.0uH
AC_DET
IC603
TPS54327DDAR
3
VREG5
2
VFB
4
SS
1
EN
5
GND
6
SW
7
VBST
8
VIN
9
[EP]GND
FB_CORE
RL_ON
+3.3V
R647 100K
C669
330pF
50V
C633
0.1uF
16V
R636
0
READY
R630
3K
1%
C635
22pF
50V
READY
R688
39
+3.3V
AMP_MUTE
AUD_SCK
R627
10K
READY
L610
10.0uH
C644
22pF
50V
READY
C672
0.22uF
50V
AC_DET
AMP_SCL
C675
0.22uF
50V
R619
17.4K
1%
R687
39
R644
22
C663
0.1uF 50V
R648 120K
R658
0
READY
R639
10K
R643
22
C652
0.047uF
25V
R631
390K
1%
C678
1000pF
50V
L613
120-ohm
2A
DVB_T2
C640
22pF
50V
READY
P_17V
P
6
0
1
S
M
A
W
2
5
0
-
H
0
4
R
1
2
3
4
ERROR_DET
R645
22
IC602
AP1117EG-13 
FNIM
ADJ/GND
OUT
IN
C646
0.1uF
50V
P_17V
C681
1000pF
50V
R642
22
C660
0.1uF
50V
C628
4700pF
50V
C639
22pF
50V
READY
R661
10K
+1.25V_TU
+1.8V_TU
R624
2K
5V_ON
C649
0.01uF
R622
0
R656
47K
1%
C677
0.22uF
50V
AUD_MASTER_CLK
DCON_EN
R635 10K
C674
0.22uF
50V
DCON_EN
L606 CIS21J121
+3.3V
R655
100K
1%
+5V
R657
43K
1%
C643
0.1uF
50V
R633
10K
R626
0
C620
10uF
25V
P600
SMAW200-H18S1
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
15
10
5
19
R634
56K
R650
33K
R666
4.7
READY
R617
59K
1%
R662
56K
R649 33K
C676
0.22uF
50V
C659
0.1uF
50V
C638
0.1uF
50V
C670
330pF
50V
R628
10K
READY
C664 1uF
25V
+3.3V
R641
22
+3.3V_TU
L609
10.0uH
R637
0
L604
120-ohm
2A
+3.3V_ST
+5V_ST
+2.5V
C647
680pF
50V
C637
4700pF
50V
R638
22
+5V
L605
NR5040T2R2N 
2.2uH
+2.5V_TU
R621
1
R629
2K
L607
NR5040T3R3N
+1.10V_VDDC
IC601
TJ3940S-2.5V-3L
1
GND
2
VOUT
3
VIN
AUD_LRCH
IC604
AZ1117BH-ADJTRE1
OUTPUT
INPUT
ADJ/GND
AUD_LRCK
C683
22uF
16V
C662 1uF
25V
C657
22uF
16V
C656
22uF
16V
C651
22uF
16V
C634
10uF
16V
C623
22pF
50V
READY
C636
3300pF
C645
3300pF
C630
0.1uF
16V
C613
10uF
25V
READY
C650
10uF
16V
C626
3300pF
50V
C609
3300pF
READY
C604-*1
1uF
10V
MULTI
C611
3300pF
50V
READY
C661
0.022uF
16V
C666
0.022uF
16V
R612
1
C682
0.1uF
16V
DVB_T2
C671
10uF
10V
DVB_T2
C632
4.7uF
10V
C654
10uF
25V
C653
10uF
25V
C641
100pF
READY
C648
100pF
READY
R623
2K
R600
10K
C631
10uF
6.3V
R670
4.7
READY
C627
10uF
6.3V
C625
10uF
6.3V
FNIM
+1.5V_DDR_IN
C617
10uF
6.3V
FNIM
C603
0.1uF
16V
READY
C606
0.1uF
16V
C601
0.1uF
16V
C607
0.1uF
16V
C610
0.1uF
16V
C612
10uF
6.3V
C600
10uF
10V
C624
1uF
10V
C629
10uF
16V
C604
1uF
6.3V
C608
10uF
10V
C602
0.1uF
16V
READY
C605
10uF
6.3V
EMI_GND1
R604
0
R606
0
R602
0
R601
0
R603
0
GND
EMI_GND4
R608
0
EMI_GND2
EMI_GND3
R605
0
R607
0
R609
100
R653
4.3K
1%
R614
220
5%
R613
100
5%
R615 1 FNIM
R618
240
FNIM
Power,AMP
GP4_S7LR
6
2011-04-01
Close-by
Close-by
Close-by
Close-by
Audio AMP
Power Wafer
+3.3V Multi
1.5V DDR / 1.24V Core
Vout=0.765*(1+R1/R2)
3.3V_TU /1.8V_TU
3.3Vst
2.5V Multi/2.5_TU
Vout=1.25*(1+R2/R1)
1.25V_TU
R1
R2
Vout=0.8*(1+R1/R2)
R1
R2
R1
R2
R1
R2
R2
R1
EMI GND 
Vout=1.25*(1+R2/R1)
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.
P1
12507WS-08L
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
LED_R
EYE_SCL
EYE_SDA
+3.3V_ST
EYE_SCL
+3.3V_ST
EYE_SDA
C1
0.1uF
16V
+3.3V_ST
R3
4.7K
OPT
ZD1
5.6B
ZD3
5.6B
R2
330
C4
0.1uF
16V
R1
47
+3.3V_ST
ZD2
5.6B
LED_R
ZD4
5.6B
LD1
LTST-C191KRKT
EAV60793101
ZD5
5.6B
ZD6
5.6B
ZD7
5.6B
IR
IR
KEY1
KEY2
ZD8
5.6B
ZD9
5.6B
C6
0.1uF
16V
OPT
C5
0.1uF
16V
OPT
+3.3V_ST
R13
2K
OPT
KEY2
KEY1
SW1
JTP1289
SW2
JTP1289
SW3
JTP1289
SW4
JTP1289
SW5
JTP1289
SW6
JTP1289
SW7
JTP1289
SW8
JTP1289
R4
4.7K
+3.3V_ST
R15
10K
Q1
MMBT3904(NXP)
E
B
C
C2
10uF
6.3V
C3
10uF
6.3V
OPT
C7
10uF
6.3V
OPT
R5
27K
R8
27K
R6
3.9K
R10
3.9K
R7
10K
R11
10K
R9
620
R12
620
IC2
KSM-903SMR1CL 
1
VOUT
2
GND
3
VCC
R14
2.7K
IC1
CM3231A3OG
1
GND
2
SDAT
3
SCLK
4
VDD
ZD4-*1
5.48VTO5.76V
ZD5-*1
5.48VTO5.76V
ZD6-*1
5.48VTO5.76V
ZD7-*1
5.48VTO5.76V
ZD3-*1
5.48VTO5.76V
ZD1-*1
5.48VTO5.76V
ZD2-*1
5.48VTO5.76V
ZD8-*1
5.48VTO5.76V
ZD9-*1
5.48VTO5.76V
SW8-*1
JTP1283
1
2
3
SW7-*1
JTP1283
1
2
3
SW6-*1
JTP1283
1
2
3
SW5-*1
JTP1283
1
2
3
SW4-*1
JTP1283
1
2
3
SW3-*1
JTP1283
1
2
3
SW2-*1
JTP1283
1
2
3
SW1-*1
JTP1283
1
2
3
8Pin Wafer to Main
Green Eye Sensor
IR Receiver
Tact Switch
RED LED
Power
Input
Home
OK
Vol-
Vol+
CH-
CH+
2.4V
0.93V
1.65V
2.4V
0.2V
0.93V
1.65V
0.2V
EAX64342101
12/04/2011
Tact/IR/Eye
1
1
(KEY1) (KEY1)
(KEY1) (KEY1)
(KEY2)(KEY2)
(KEY2) (KEY2)
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