LG 50PW450 Support Question
LG 50PW450 Support Question
Find answers below for this question about LG 50PW450.Need a LG 50PW450 manual? We have 1 online manual for this item!
Question posted by navq on November 16th, 2014
No Sound Coming Out Of Sound Bar
I have a sound bar connected to my LG TV but the sound is not coming out of the sound bar, have tried changing the settings but have had no luck, its all connected right and the sound bar works as i have it connected to my ipod through bluetooth, can any one help me out here.. Model No. LG50PW450
Current Answers
Answer #1: Posted by TommyKervz on November 16th, 2014 9:39 AM
TommyKervz
Member since:
January 10th, 2013 Points: 17,776,843
Member since:
January 10th, 2013 Points: 17,776,843
Start with checking the power cord connection and verify power to the Sound Bar. Next, verify the device is plugged into the correct input on the back of the Sound Bar. Then, cycle through all inputs on the Sound Bar (be sure to wait at least 5 seconds on each input for audio to be processed before moving on to the next input).
Press the VOLUME UP button on the Sound Bar.
Ensure the source you have selected is outputting audio.
If you are using "audio out" from your TV, please ensure your TV is configured to output audio (refer to your TV User's Guide).
Ensure your audio connections are properly made (check for loose connections).
Ensure you have selected the correct source (input) - the display of the Sound Bar will show the currently selected source (input).
Press the MUTE button on the remote control to ensure the Sound Bar is NOT muted.
If still no audio, connect with a different device to the Sound Bar. NOTE: Some devices (TVs, Blu-ray, etc.) have audio out settings that also need to be adjusted to get these units to output an audio signal. Please refer to your device user manual or contact the manufacturer's tech support for help adjusting those settings.
Related LG 50PW450 Manual Pages
Service Manual - Page 1
...)
Printed in Korea North/Latin America Europe/Africa Asia/Oceania
Internal Use Only
http://aic.lgservice.com http://eic.lgservice.com http://biz.lgservice.com
PLASMA TV
SERVICE MANUAL
CHASSIS : PD11A
MODEL : 42PW450 /450A/450N/450T MODEL : 42PW451 /451A
42PW450/450A/450N/450T-ZA/
CAUTION
42PW451/451A-ZD
BEFORE SERVICING THE CHASSIS...
Service Manual - Page 2
LGE Internal Use Only
Only for training and service purposes
-2- All rights reserved.
CONTENTS
CONTENTS ...2 SAFETY PRECAUTIONS ...3 SPECIFICATION ...4 ADJUSTMENT INSTRUCTION 6 BLOCK DIAGRAM ...14 EXPLODED VIEW ...15 CIRCUIT DIAGRAM ... Copyright ©2011 LG Electronics Inc.
Service Manual - Page 3
...receiver is not isolated from AC source, connect an electrical jumper across the resistor using... shorts of shock hazard and the set must be inadvertently introduced during this check...CONDUIT etc.
1.5 Kohm/10W
Copyright ©2011 LG Electronics Inc.
If any measurement is out of ... 1000 ohms/volt or more sensitivity. All rights reserved. Do not use a line Isolation ...
Service Manual - Page 4
...Hz
Copyright ©2011 LG Electronics Inc. V Application Range
This spec is applied to the adjustment.
All rights reserved. V Test Method
(1) Performance : LGE TV test method followed. ....
Only for training and service purposes
-4- SPECIFICATION
NOTE : Specifications and others are subject to change without special appointment. (1) Temperature : 25 °C ± 5 °C (77 &#...
Service Manual - Page 5
...-PC
HDMI/DVI,HDMI2, HDMI3
HDMI-DTV
RGB/DVI Audio, Component, AV
L/R Input
SPDIF Out
For SVC, S/W Download, DivX
For UK models
Copyright ©2011 LG Electronics Inc. Only for training and service purposes
-5- All rights reserved.
LGE Internal Use Only
Service Manual - Page 7
... Copyright ©2011 LG Electronics Inc.
Model
... 50R3 36992 37966 54144 26892 32
50PW450-ZA 50T3 37056 37966 54144 26892... button of the Adjustment R/C , power on production line.
5. All rights reserved. LGE Internal Use Only But your downloaded program version in USB ...Updating is Low, it didnst work. In this case, you didnst have a DTV/ATV test on TV. Enter Service Mode by pushing...
Service Manual - Page 8
... 64 128
Copyright ©2011 LG Electronics Inc. ADC ADC
A
... Condition for training and service purposes
-8- All rights reserved. * ADC Calibration Protocol (RS232)
NO
...work instructions) (1) TV (2) AV (SCART1/SCART2/ CVBS) (3) COMPONENT (480i) (4) RGB (PC : 1024 x 768 @ 60hz) (5) HDMI (6) PC Audio In
* Display and Sound check is connected... and Module
CSM
PLASMA
Cool
11000K
Medium
9300K...
Service Manual - Page 12
...Set
12. If the TV set is downloaded By OTA or Service man, Sometimes model name or serial number is impossible to download by bar... Setting of CI+ Key value
(1) check the method on " button of a service R/C.(Baud rate : 115200 bps)
(2) Connect ...on Instart menu
Copyright ©2011 LG Electronics Inc. There is initialized.( Not always) - All rights reserved. CI+ Key Download
[Description...
Service Manual - Page 25
...
10
First of all, Check whether there is SVC Bulletin in GCSC System for these model.
ⓒ LG Electronics. Inc.2010 Sound Problem
No sound/ Sound distortion
8
9 E. Picture Problem
Mal-discharge/Noise/dark picture
3
4
Picture broken/Freezing
4
5
Vertical bar/ Horizontal Bar
5
6 B.
PDP TV Repair Process Index
No. Symptom (L)
Symptom (M)
Page
Remark
1
No Picture...
Service Manual - Page 26
...Check B+(5V)
N
☞A8~A11
1. Picture Problem
No Picture/Sound OK
Making Revision
2010. 11. 16
전자 - 6-2... Z-Sus B/D(for each voltage ☞A4
-VY VSC VZB
1
ⓒ LG Electronics. VZB
Check B+ Voltage
Normal
Y
on
. Crystal(X2), 3.3V, ...R/C
Normal
☞A2
Y Check Sound
N
Sound OK
Y
Check
LVDS Cable
N
Move No Picture/No sound
Section
Normal Y
N Replace Main ...
Service Manual - Page 27
... Cable
Picture OK
Y
Close
N
☞A6 N
Check Video
Check "Speaker ON/Off" setting
in OSD Menu
Normal N Sound?
Inc.2010
Y
Check Power B/D Replace Power B/D
Check Audio IC Short Replace Main B/D
2
ⓒ LG Electronics. Repair Process
PDP TV
Symptom
A.
Picture Problem
No Picture/No Sound
Making Revision
2010. 11. 16
전자 - 6-2 2/10
☞A1
Check...
Service Manual - Page 29
...or
broadcaster
(Cable or Air)
ⓒ LG Electronics. Picture Problem
Picture broken/Freezing
Making ... Repair Process
PDP TV
Symptom
A. Signal strength (Normal : over 50%)
Normal Signal? Y
N
Move
No Picture/ Sound Ok
Section
■...connecting RF Cable at other equipment) → DVD Player ,Set-Top-Box, Different maker TV etc
N
Check RF Cable Connection
1.
Signal Quality (Normal:...
Service Manual - Page 30
...Check X B/D 2.Replace Board
Normal
N
Picture? Replace Board
N
1.Connector re-connection 2.Eliminate foreign material on SVC R/C
Normal Pattern? Module
Y Close
ⓒ LG Electronics. Y Replace Module
Vertical Line/Bar
Irregular Vertical Line / Bar
☞A13 N
1.Check CTRL B/D 2.Replace Board
☞A20
Check connection of Connector (FFC)
on Connector
※CTRL B/D: Control board...
Service Manual - Page 33
... EDID data)
☞A25
Check "Speaker ON/Off" setting
in same output of other equipments or not. (By connecting same output cable of other equipment) → DVD Player ,Set-Top-Box, different maker TV etc
N Normal Sound?
RF & external
(HDMI,SCART,,,)
Normal N Sound? N Y Close
Problem in only DTV
Problem in external input (SCART,HDMI,,,)
Check whether...
Service Manual - Page 37
Inc.2010 Symptom
18
19 Picture Problem
20
21
22 Power Problem
23
24 Sound Problem
25
26 General Function Problem
27
Detail
Defect type cause by PDP Module Connector Type on PDP Module RF Signal ...operation Check Local Key operation Check RF emitter operation
Page
A19 A20 A21 A22 A23 A24 A25 A26 A27 A28
Remark
ⓒ LG Electronics. PDP TV Repair Process Reference data Index
No.
Service Manual - Page 38
...
Tilt Key
You can judge defect cause (Module or Main B/D) - If patterns appear, defect cause is Main B/D
A1
ⓒ LG Electronics. Dead pixel 2.Image sticking 3.Mal discharge 4.Module defect (V-Line/Bar, H-Line/Bar,,,)
5. Picture Problem
Check Module pattern by using TILT Key on SVC Remote controller (except Old model) < CHECK Item >
1. Repair Process...
Service Manual - Page 46
...;
⑤ ⑥
⑦
Vy Vsc Vzb
① Model Name
② Bar Code (Code 128, Contains the manugacture No.)
③ Manugacture No.
④ Adjusting Voltage(DC Va, Vs)
⑤ Adjusting Voltage (Set up/-Vy/Vsc/Ve/Vzb)
⑥ The trade name of LG Electronics
⑦ Manufactured date(Year & Month)
⑧ Warning
A4
⑨
⑨...
Service Manual - Page 55
Fuse check Pic. 1. Inc.2009
A7
ⓒ LG Electronics. Repair Process-Reference data
PDP TV
Symptom
A. Pic. 2.
1) Sound comes, the fuse is OK. 2) If Fuse is defects, it should check again voltage of 5V, Va, Va after replacing the fuse. 3) In case there are ...
Service Manual - Page 64
... B/D
Vertical lines or Bar
1. Replace CTRL B/D
Many irregular vertical lines
1. Check connection (Y-Sus B/D ↔Panel)
2. Picture Problem
Defect type cause by PDP Module
Making Revision
2010. 11. 16
전자 - 6-2 A19
First of all, Check whether all of cable between board was inserted properly or not. Replace Y-Sus B/D
A19
ⓒ LG Electronics. Check...
Service Manual - Page 70
A25
ⓒ LG Electronics. Inc.2010 Check whether speaker cable have problem (disconnection wire) or not. Repair Process-Reference data
PDP TV
Symptom
C. Sound Problem
Speaker cable checking method
Making Revision
2010. 11. 16
전자 - 6-2 A25
Jack for Speaker connection
Speaker
1.Check whether speaker jack was inserted properly on Main B/D side & speaker side or...
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