DOWNLOAD LG 47LB7RF (CHASSIS:LP7AA) Service Manual ↓ Size: 4.42 MB | Pages: 43 in PDF or view online for FREE

Model
47LB7RF (CHASSIS:LP7AA)
Pages
43
Size
4.42 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
47lb7rf-chassis-lp7aa.pdf
Date
PREV: LG 47LB7DF (CHASSIS:LJ81A) Service Manual

LG 47LB7RF (CHASSIS:LP7AA) Service Manual ▷ View online

- 21 -
3.  In case of no sound
(1) Symptom
1) LED is White
2) Screen existent, but Sound isn’t
(2) Check follow
No
No
No
All input(mode)
is no sound?
Only HDMI is 
no sound?
Replace IC400
Replace IC401
Replace 
VSC B/D
Set on speaker in menu
Download the EDID data
Check the speaker cable
No
Only RF is 
no sound?
Check the Tuner In/Out
No
No
No
Replace IC402
No
Is the Speaker 
on in Menu?
Yes
Yes
Yes
Is the speaker
cable normal?
Yes
Yes
Yes
Yes
IC1401 operate 
normally?
IC1401 operate 
normally?
IC402 operate 
normally?
BLOCK DIAGRAM
- 22 -
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
- 23 -
EX
PL
O
D
ED
 V
IE
W
30
0
20
0
53
0
81
0
81
3
82
0
12
0
51
0
52
0
90
0
86
0
83
0
54
0
55
0
56
0
85
0
84
0
40
0
81
5
81
6
81
4
81
2
81
7
81
1
12
1
- 24 -
EXPLODED VIEW PARTS LIST
No.
PART NO.
DESCRIPTION
120
EAB33775101
Speaker,Full Range, EN1562C-6712 ND 10W 8OHM 82DB 100HZ 193.5 X 42 X 39.9 LUG  KOREA TOPTONE
200
EAJ35565901
LCD,Module-TFT, LC470WU1-SLB2 FULLHD 47INCH 1920X1080 550CD COLOR 72% 16/9 800:1(basic) DCR(1600:1) A-TW Pol. 12000K P7  LG PHILIPS LCD
300
ABJ32682603
Cabinet Assembly, "47LB7RF-TB LP7AA 47"" CENTERAL ASIA"
400
ACQ32083403
Cover Assembly, "47LB7RF-TA LP7AA 47"" BACK COVER ASSY_H4"
510
EBR36401901
PCB Assembly, SUB T.T LP7AA 47LB7RF IR .
520
EBR36402801
PCB Assembly, SUB T.T LP7AA 47LB7RF CONTROL KEY .
530
EBR36524801
PCB Assembly,Sub, SUB T.T LA71A 42LY3DR-NA AKRLLH AC-Inlet Ass'y Total
540
EAY32816901
SMPS,AC/DC, "FSP327-6F01 90VTO264V 375W 50/60 CB, UL, IEC600,650 etc... LCD 47inch SPI PSU for New chassis(E3 etc...)  SPI ELECTRONIC CO.,LTD"
550
EBU36366301
Main Total Assembly, 47LB7RF BRAND LP7AA
560
EBR36401302
PCB Assembly, SUB T.T LP7AA 47LB7RF SIDE AV ..
810
MGJ32889301
Plate,Metal, PRESS SBHG1 1.6 METAL EGI BAR TOP(47LY3)
811
MGJ32889601
Plate,Metal, PRESS SBHG1 1.6 METAL EGI BAR BOTTOM (47LY3)
812
MGJ32890002
Plate,Metal, "PRESS SBHG1 1.6 METAL EGI BAR RIGHT (47LB4, PEM-NUT 'YES')"
813
MGJ32897002
Plate,Metal, PRESS SBHGI 1.6 METAL EGI BAR CENTER (47LY3)
814
MGJ32889801
Plate,Metal, PRESS SBHG1 1.6 METAL EGI BAR LEFT (47LY3)
815
MGJ32897102
Plate,Metal, PRESS SBHG1 1.6 METAL EGI BAR SIDE TOP (47LY3) H4_NON_EU
816
MGJ32897202
Plate,Metal, PRESS SBHG1 1.6 METAL EGI BAR SIDE BOTTOM (47LY3) H4_NON_EU
817
MGJ32897301
Plate,Metal, PRESS SBHG1 1.6 METAL EGI BAR SUPPORTER (47LY3)
820
MGJ37663601
Plate,Shield, PRESS SPTE 0.5 SHIELD SPTE 52LY3 H4-H SHIELD COVER
840
EAM36140902
Filter,AC Line, IF-N06AEWL2 1.3mH 250VAC 6A 0.1uF 1000pF ENEC/VDE/UL/CSA/EK 350/130mm HOUSING/RING BK  DONG IL TECHNOLOGY LTD.
840
MGJ37663502
Plate,Shield, PRESS SPTE 0.5 SHIELD SPTE 47LY3/LB4/LB5/LC7 POWER SHIELD
850
MAZ34946201
Bracket, MOLD HIPS 405AF STAND 47LC5 LA73A HIPS 405AF Guide
860
MAZ37752001
Bracket, MOLD HPS 51SF HANDLE 47LB4 LD73A HIPS 51SF 47LB4 CABLE MANAGEMENT
900
AAN33079801
Base Assembly, STAND 47LB5 LD75A Round Shape Stand
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