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The most common cause of sound and no picture problems is the power supply inverter board. There are parts called capacitors that overheat and fail. If you can do a little soldering then you should be able to repair the board yourself. Here is a link to a repair kit with the proper capacitors for that board.
Hi,
Specifications
Display
Image Aspect Ratio:
16:9
Widescreen Modes:
Conventional 4:3
Comb Filter:
3D digital
Additional Features:
V-Chip, parental control
Diagonal Size:
42" - widescreen
Display Format:
1080p (FullHD)
Resolution:
1920 x 1080
V-Chip Control:
Yes
Image Contrast Ratio:
2500:1
Brightness:
500 cd/m2
TV Tuner
Stereo Reception System:
MTS
Secondary Audio Program (SAP):
Yes
Analog TV Tuner:
NTSC
Video Features
HDTV Ready:
Yes
Analog Video Input Signals:
NTSC
Input Video Formats:
1080p
Remote Control
Type:
Remote control
Audio System
Sound Output Mode:
Stereo
Sound Effects:
Virtual Dolby Digital
Speakers Included:
2 speakers
Additional Features:
Mute button
Speaker(s):
2 x right/left channel speaker - built-in
Connections
Connector Type:
1 x composite video input ( RCA phono ) ¦ 1 x S-Video input ( 4 pin mini-DIN ) ¦ 3 x audio line-in ( RCA phono x 2 ) ¦ 2 x component video input ( RCA phono x 3 ) ¦ 3 x HDMI input ( 19 pin HDMI Type A ) ¦ 1 x digital audio output (coaxial) ( RCA phono ) ¦ 1 x audio line-out ( RCA phono x 2 )
Power
Power Device:
Power supply - internal
Power Consumption Operational:
240 Watt
General
Product Type:
42" LCD TV
TV Tuner:
1x analog, 1x digital
Width:
41.3 in
Depth:
10.2 in
Height:
29.7 in
Weight:
55.1 lbs
HDCP Compatible:
Yes
Digital Television Certification:
HDTV
Digital TV Tuner
Digital TV Tuner:
ATSC, QAM
Additional Specifications
HDMI:
Y
More Information
Model No.:
DP42848
Shipping Weight (in pounds):
67.0
Product in Inches (L x W x H):
41.3 x 10.2 x 29.7
Assembled in Country of Origin:
USA and/or Imported
Origin of Components:
USA and/or Imported
Walmart No.:
000503420
Hi, If everything else works - there is sound and high voltage (static on the screen) - but there is no picture (including no on-screen menus), this limits the likely area of problems is the video output circuitry or CRT filament connections. Check to see if the CRT filaments are glowing. If they are not glowing, check for bad soldering on the CRT neck board and around the flyback transformer.
Where the picture is erratic - coming and going entirely or changing brightness suddenly, with power off, remove the picture tube socket (carefully!) and clean the pins with fine sandpaper and use contact cleaner on the socket. This source of bad connections can result in a variety of erratic symptoms. Check for bad solder connections on the CRT neck board. GOOD LUCK....
For DISH Network users: I found that the Citizen brand remote code #523 worked for the sound, mute and power. This is for the remote that comes with the standard DVR, im not sure about any others.
** This was added to the 32in product page because there is no listing for the 42 inch yet.
my 42" ilo plasma started going black on the outside to middle, now its totally black and no sound the power indicated lites for a min then the tv shuts off
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