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Philips 52PFL7403D Support Question

Philips 52PFL7403D Support Question

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Question posted by taylorpj on May 30th, 2011

Picture Goes Out, Can Only Hear Sound. Lcd Lamp/bulb Goes Out?

Picture goes out, can only hear sound. LCD lamp/bulb goes out?

Current Answers

Answer #1: Posted by jdvillanueva on May 31st, 2011 5:21 AM
This answer was accepted by the poster of the original question.
jdvillanueva

Member since:
May 9th, 2011

Points: 33,360
1,090
points
Hi , 
Power on the unit in the dark room then shine with the flashlight directly in the screen, you will barely see the images. This is because your backlight is not functioning. The following reason is the caused. 
1. Power supply - missing B+(supply voltage) coming from this board feeding the inverter board. This is caused by faulty transistor, dried/leaky electrolytic capacitor, open fusible resistor. 
2. Inverter board - even the B+ is good from the power supply, if the fuse, driver transistor, driver transformer is faulty no output to the backlight resulting to black picture. 
3. Busted backlight - even inverter board is good but if this is busted resulting to black picture also. 
Diagnosing the fault is technical and if you don't have necessary tools and test instrument and can't fix it yourself, I would advice you to look for an experienced technician to isolate the problem. 

Best Regards,

JDV

 

Answer #2: Posted by jdvillanueva on May 31st, 2011 9:37 PM
jdvillanueva

Member since:
May 9th, 2011

Points: 33,360
100
points
Hi , 
Power on the unit in the dark room then shine with the flashlight directly in the screen, you will barely see the images. This is because your backlight is not functioning. The following reason is the caused. 
1. Power supply - missing B+(supply voltage) coming from this board feeding the inverter board. This is caused by faulty transistor, dried/leaky electrolytic capacitor, open fusible resistor. 
2. Inverter board - even the B+ is good from the power supply, if the fuse, driver transistor, driver transformer is faulty no output to the backlight resulting to black picture. 
3. Busted backlight - even inverter board is good but if this is busted resulting to black picture also. 
Diagnosing the fault is technical and if you don't have necessary tools and test instrument and can't fix it yourself, I would advice you to look for an experienced technician to isolate the problem. 

Best Regards, JDV

Related Philips 52PFL7403D Manual Pages

Leaflet - Page 1

... engine, HD Natural Motion and exciting invisible sound, this Flat TV ensures you're always part of the action. See every detail of the action Experience brilliant performance with a breathtaking full HD 1080p, 120Hz display. Philips 7400 series LCD TV with Perfect Pixel HD Engine 52" Full HD 1080p 52PFL7403D Be part of the action • Perfect...
Leaflet - Page 2

LCD TV with Perfect Pixel HD Engine 52" Full HD 1080p Highlights 52PFL7403D/F7 Perfect Pixel HD Engine Experience unrivalled sharpness and clarity with superb brightness and colors. The result is the highest resolution of LCD...Natural Motion to minimize juddering effects that of conventional LCD, resulting in a response time of the picture is needed to better match the surrounding pixels, ...
Leaflet - Page 3

... www.philips.com LCD TV with Perfect Pixel HD Engine 52" Full HD 1080p Specifications 52PFL7403D/F7 Picture/Display • ... size: 52 inch / 132 cm • Visible screen diagonal (inch): 52.04 inch • Panel resolution: 1920x1080p • Picture enhancement: ...Sound • Equalizer: 5-bands • Output power (RMS): 30W • Sound Enhancement: Incredible Surround • Sound...
User manual - Page 4

...to radio communications. Any operation expressly prohibited in a particular installation. Pixel characteristics This LCD product has a high number of the product. Although it has effective pixels of...OL FRANÇAISE ENGLISH Manufactured under license from BBE Sound, Inc. Philips reserves the right to radio or television reception, which the receiver is not a malfunction. ...
User manual - Page 5

... Use Auto Mode 16 Create and use of USB devices 36 Understand the remote control 12 Use the quick access menu 13 Change picture and sound settings 13 12. Your TV 6 Television overview 6 Remote control 6 Optimize the signal quality from your antenna 26 Uninstall and reinstall channels 27 Return your settings to standby 10...
User manual - Page 6

...for all Local, State and Federal laws. This TV consumes minimal energy in green focal areas. EN-5 directly from you 'll receive all LCD products, this product is paying a lot of.... Contact Philips Customer Care Center at the rear of the TV. 1.3 Environmental care Recycling The packaging of this set contains a lamp with liquids, such as this apparatus should not be recycled....
User manual - Page 13

.... INFO Press to standby. AUTO MODE Toggles between preset picture and sound settings. Switches the TV on from standby or back to display information about the selected TV channel and program or accessory device. OPTION Activates the quick access menu. You may see a difference in broadcast time if the broadcaster is physically unplugged. 2. ...
User manual - Page 14

... quick access menu gives direct access to enter the setting. 5. Press OPTION on the remote control. 2. TV menu Installation TV settings Settings assistant Picture Sound Settings assistant Start now 2. Press Î or ï to select one of the picture settings, and press Æ to some often needed menu items. D Note When digital channels are installed...
User manual - Page 16

... . • Delta volume Levels out volume differences between channels or connected devices. TV menu TV Settings Settings assistant Picture Sound Sound Equalizer Balance Digital audio language Alternate audio Mono/Stereo Incredible surround AVL BBE 2. Press Menu to adjust your sound settings. 1. Change sound settings This section describes how to exit. Press Î or ï to highlight...
User manual - Page 17

... select one of the channels on the remote control to that you defined by using the Picture menu. • Sports Vivid picture settings and clear sound for high action. • Standard For normal TV viewing. • Movie Brilliant picture settings for a cinematic experience. • Game Optimized for PCs, games consoles and playstations. • Power saver...
User manual - Page 25

... Selection. For information about configuring your device, see the specification. For sound, add an audio cable with the cursor buttons. ESPAÑOL FRANÇAISE ENGLISH 5.11 Use your TV in HDTV mode Not all models can adjust the picture position to the center of the screen with a stereo mini jack. D Note...
User manual - Page 27

... and select Installation > Channels > Autoprogram > Start Now. 6.4 Optimize the signal quality from the list of your cable TV provider and that you select the language for the TV menus and make basic choices for picture and sound. 1. Highlight a channel from your antenna You can set preferences in order to Home or Retail store. ESPA...
User manual - Page 28

...EAS) This section describes how to exit. 2. TV menu Installation Channels Autoprogram Weak channel installation Installation mode Uninstall channels Uninstall channels 52 53 54 55 56 57 58 59 2. ...TV to digital devices such as digital set-top boxes, digital TVs, and digital VCRs. Press Í to confirm your settings to default values This section describes how to return picture and sound...
User manual - Page 31

.... As such a connection does not support sound, you must use a DVI-HDMI adaptor to connect your device to a HDMI connector on the TV. Match the cable colors when connecting to the... connected. 1. HDCP is analog. Yellow, red and white Component (Y Pb Pr) video provides better picture quality than composite video. Use only a certified HDMI cable. Press Æ to help you can ...
User manual - Page 32

... your TV. If you use mono equipment, the left loudspeaker reproduces sound but ...TV ANTENNA HDMI 1 R R R SERV. U L L L Pr Pr Pb Pb SPDIF OUT VIDEO L AUDIO IN Y Y S-VIDEO R HDMI 2 AV 1 AV 2 AV 3 DVI AUDIO IN HDMI 3 DVI HDMI AUDIO OUT HDMI 1 R R R SERV. Note that different types of connectors may be susceptible to stereo adapter (not supplied) for improved picture...
User manual - Page 33

...OUT Set-top box RF IN Connect a digital home theater amplifier TV ANTENNA CABLE HDMI 1 R R R SERV. Only the left loudspeaker reproduces sound for sound reproduction via all internal loudspeakers. U L L L Pr Pr SPDIF OUT ...Selected TV models are capable of AV3/side AV. A DTV signal must be available in your device has an S-VHS video jack: For improved picture ...
User manual - Page 35

... DVI interface. The United States and Japan use a different system called NTSC. A sound enhancement technology. Using these different standards. Enables one-touch play and one video signal....standby with PAL or SECAM color coding. Television pictures are connected to read NTSC coded recordings. The System setting is used to your TV by 3. PAL is used to accommodate ...
User manual - Page 36

... installation. 1. For AV connection, ensure that you are using the remote control supplied with HDMI connection. If the TV is certified. 2. No picture or sound. on the remote control, and select the HDMI 3 source. Connect the TV to the wall via a coaxial connection, perform the auto-installation again. 1. Ensure that the batteries do The...
User manual - Page 38

...Swivel 7000 42-52PFL7403D 1080p 120Hz 2ms Yes 30 W 5000 32-42PFL5403D/ 32PFL5413D 42-52PFL5603D 32PFL3403D/ 42PFL3403D PICTURE ENHANCEMENT 768p 60Hz... 1080p 60Hz 768p 60Hz 500 cd/m2 16:9 8 ms 5 ms 5 ms 178 (V) by 178 (H) ATSC/QAM No Yes No Yes Yes SOUND...-3 & PCM 1 (on the side of TV) 1 (on the side of TV) MISCELLANEOUS 110V-240V~/50-60 Hz, 120V ...
User manual - Page 40

...22 Connect USB device 22 Listen to music 23 View photos 23 View slide show with music 23 Picture Adjust settings 13 Auto modes 16 Change format 14 PIN code 18 Power cord Connect 8 Disconnect 8... Version 28 Sound Auto modes 16 Surround mode 15 Specifications 37 Store mode 26 Super zoom 14 S-Video cable 30 T Technical specifications 37 Timer Clock 17 Sleeptimer 17 Tint 14 TV Model number ...

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