DOWNLOAD Sony KDE-50XS955 Service Manual ↓ Size: 19.11 MB | Pages: 127 in PDF or view online for FREE

Model
KDE-50XS955
Pages
127
Size
19.11 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kde-50xs955.pdf
Date

Sony KDE-50XS955 Service Manual ▷ View online

KDE-50XS955 (UC)     1-8E
1-13. H3 AND H4 BOARDS REMOVAL
1
 H4 board
2
 H3 board
1-14. H5 BOARD REMOVAL
6
 H5 board
2
 Corner bracket
4
 Front frame
1
 Two screws
    (+BVTP 4x16)
5
 Screw
    (+BVTP 3x12)
3
 Two screws
    (+BVTP 4x16)
KDE-50XS955 (UC)     2-1
SECTION  2
ADJUSTMENTS and TROUBLESHOOTING
2-1. WHITE BALANCE ADJUSTMENT
When the Panel or DE1 Board is replaced or is repaired, W/B
should be adjusted.
2-1-1. Measurement equipment
1. Color analyzer (CA-100 manufactured by MINOLTA)
2. Signal generator (ASTRO DESIGN VG-828D)
2-1-2. Measuring procedure
1. Dab the W/B adjustment jig (CA-100) at the glass face of the
panel.
2. Connect the Signal generator (VG-828D) to the component
terminal.
3. Input All-white signal (70%).
4. Make the settings as follows.
• Set the quality mode to PRO.
• Set the PICTURE to MAX.
• Set the Color corrector to Low.
5. Set the color temp, be adjusted cool.
6. Adjust the color temperature of the “highlight” side with the
following items of side mode menu, fixed a value of one of
RGBs 512.
There are 3 mode (COOL, NEUTRAL, WARM):
MODE
COLOR TEMPERATURE
W/B
COOL
13550K + OMPCD
4
NEUTRAL
9300K + 8MPCD
2
WARM
8000K + 8MPCD
1
*Operation Register
Service mode “27 MAIN _WB”
5 : GAINR
6 : GAING
7 : GAINB
7. Adjust Cool, Neutral, Warm of each color temperature.
Adjustment target values:
MODE
X
Y
COOL
0.2684 ± 0.003
0.2700 ± 0.003 13550K + 0MPCD
NEUTRAL
0.2849 ± 0.003
0.2931 ± 0.003
9300K + 0MPCD
WARM
0.2951 ± 0.003
0.3044 ± 0.003
8000K + 0MPCD
2-1-3. Service Mode
1. How to Enter Service Mode
1) Turn on the main power switch to place this set in standby
mode. (The LED will light red.)
2) Press the buttons on the commander as follows to enter
service mode.
2. Press the  JUMP  key on the commander three times.
3. How to Adjust
“27 MAIN_WB”
Category name.
(Can be changed with the 2 and 5 keys on the commander.)
5 GAINR 512
Data
Can be changed with the 3 and
6 keys on the commander.
Item Name
Item No.
4. After the adjustment is completed, save the data using the
MUTE  and  ENTER  keys.
Can be changed with the 1 and
4 keys on the commander.
Enter the
“Service mode”
5
(VOLUME +)
(DIGIT 5)
(DISPLAY)
(POWER)
KDE-50XS955 (UC)     2-2
2-2. TROUBLESHOOTING
Twin View
Problem
Possible Remedies
I cannot get Twin View to work
s
If you are using a cable box to unscramble all channels (as shown on page 26), you 
cannot use the Twin View feature. This is because the cable box can unscramble 
only one channel at a time. But if you need the cable box to unscramble only some 
(usually premium) channels, you can use Twin View for unscrambled channels if 
you connect both a cable and cable box, as shown on page 25.
s
You can use Twin View to view a signal from a different source that is connected to 
the TV's A/V jacks (such as a VCR or DVD player) in the second window by 
pressing the 
TV/VIDEO
 button while in Twin View.
s
Digital sources, as well as any sources connected to the VIDEO 4, VIDEO 5, 
VIDEO 6 inputs, display in the left window, but not in the right windows. 
There is no Twin View window, 
or it is just static
s
Be sure the Twin View window is set to a video input or channel that has a signal 
airing.
s
You might be tuned to a video input with nothing connected to it. Try cycling 
through the video inputs by pressing the 
TV/VIDEO
 button.
Twin View cannot display 
anything but TV channels 
s
Try cycling through the video inputs by pressing the 
TV/VIDEO
 button. Check 
that the 
Label Video Inputs
 option is not set to 
Skip
. (See the Setup Menu on 
page 105.)
Twin View displays the same 
program in both windows
s
Both Twin View windows might be set to the same channel. Try changing channels 
in either window.
Remote Control
CableCARD
Problem
Possible Remedies
Remote control does not operate
s
The batteries could be weak. Replace the batteries.
s
Check the orientation of the batteries.
s
Press the 
TV (FUNCTION)
 button. You may have inadvertently pressed the 
SAT/CABLE (FUNCTION)
 button, which changes the remote control to SAT or 
CABLE mode. 
s
Make sure the TVís power cord is connected securely to the wall outlet.
s
Locate the TV at least 3-4 feet away from fluorescent lights.
Cannot change channels with 
the remote control
s
If you are using the TV to change channels, first press the 
TV (FUNCTION)
 
button.
s
If you are using another device to change channels, be sure you have not 
inadvertently switched your TV from the channel 3 or 4 setting. Use the 
Channel 
Fix
 option to ìf ixî  the channel based on the hookup you used (see page 99).
s
If you are using another device to change channels, be sure to press the 
FUNCTION
 button for that device. For example, if you are using your cable box 
to change channels, be sure to press the 
SAT/CABLE (FUNCTION)
 button.
Remote control does not operate 
non-Sony video equipment
s
If you replaced the batteries to the remote recently, the code numbers for the video 
equipment may need to be reset. 
s
There may be more than one code for the equipment that you are attempting to 
operate. 
s
There is a possibility that some non-Sony equipment cannot be operated by your 
Sony TV remote.You may need to use the equipmentís original remote control.
Problem
Possible Remedies
Problems using CableCARD
 
or CableCARD
 services
s
Check that the CableCARD
 is inserted properly (see page 51).
s
The CableCARD
 must be activated by your local cable TV provider before you 
can receive digital cable TV services. See the activation instructions on page 51.
s
Check the 
Diagnostics
 and 
CableCARD
 menu options (see page 108). (This 
can be useful in providing information to an authorized technician or repair 
person.)
s
Contact your cable TV provider.
KDE-50XS955 (UC)     2-3
Channels
Problem
Possible Remedies
Cannot receive upper channels 
(UHF) when using an antenna
s
Press 
ANT
 to select the VHF/UHF input (see page 57).
s
Use 
Auto Program
 in the Channel Menu to add receivable channels that are not 
presently in the TVís memory (see page 99).
TV is fixed to one channel
s
Use 
Auto Program
 in the Channel Menu to add receivable channels that are not 
presently in the TVís memory (see page 99).
s
Check your Channel Fix settings (see page 99).
Cannot receive any channels 
when using cable TV
s
Use 
Auto Program
 in the Channel Menu to add receivable channels that are not 
presently in the TVís memory (see page 99).
s
Press 
ANT
 to select the CABLE input (see page 57).
Cannot receive or select 
channels
s
Use 
Auto Program
 in the Channel Menu to add receivable TV channels that are 
not presently in TV memory (see page 99).
Some digital cable channels are 
not being displayed
s
Certain cable TV companies have limitations on the broadcast of digital cable 
channels. Check with your cable TV company for more information.
s
Check with your cable TV company if the channels are scrambled or encrypted. 
You will need a CableCARD or a separate set-top box to view those channels.
s
Some optional digital cable broadcast formats may not be supported. If your cable 
TV company is broadcasting digital signals in unsupported broadcast formats, you 
will need a separate set-top box provided by your cable TV company to view those 
channels.
s
The digital cable channel may be set to 
Hide
 in the Channel Menu (see page 99).
s
Use the Digital Channels feature to search for new digital channels (see page 99). 
Memory Stick
Problem
Possible Remedies
Image does not display/Cannot 
see all files
s
Make sure the image file is a JPEG (.jpg, .jpeg) file or an MPEG1 (.mpg, .mpeg) 
file.
s
Make sure the Memory Stick is inserted properly (see page 78).
s
Check the 
Filter
 option setting (see page 89).
s
Check the 
Select Folder
 setting (see page 89) and ensure that files are either in 
DCF directories if 
Digital Camera Folders
 is selected (see page 89), or in the 
currently selected folder if 
Select a Folder
 is selected (see page 89).
s
The maximum number of files the Memory Stick Viewer can display is 2,000 files 
total, including all JPEG, MPEG1, and MP3 files. 
s
If you are using a Memory Stick with the Memory Select function, try changing 
the position of the A/B select switch.
JPEG image displays 
undesirable motion or flicker in 
full screen
s
JPEGs captured using a digital video camera may appear to display motion in full 
screen. This is a result of the way digital video cameras record still images, and is 
not a result of a malfunction with the TV.
Rotation not saved after 
Memory Stick is ejected or 
Memory Stick Viewer is closed
s
The Memory Stick might be locked. Unlock the Memory Stick and try rotating the 
image again.
s
The file might not have information (EXIF data) that is usually generated when a 
digital camera records a photo. In this case, it is not possible to save the rotation.
s
There might be insufficient space on the Memory Stick to save the rotated file. Try 
deleting one or more files and rotating the image again. 
Cannot show (or hide) file 
information in full screen or 
Slide Show 
s
Set the 
File Information
 option to 
On
 or 
Off
 (see page 88).
Cannot set print quantity
s
The Memory Stick might be locked. Unlock the Memory Stick and try rotating the 
image again.
Cannot see Menu
s
Press 
V
 to display the Menu again.
Cannot hear audio while using 
Memory Stick
s
Check the TVís volume or 
Speaker
 (page 96) settings. 
s
To hear JPEG voice memo in full screen view, select the 
Digital Camera Folders
 
option and set the 
Filter
 option to 
Show All Print Marks
s
Check that the 
Music
 option is not to set to 
Off
 (see page 88).
Not all MP3 files on Memory 
Stick are included when the 
Music /Complete List
 option is 
selected (page 88)
s
The Memory Stick Viewer can display a maximum of 2,000 files total, including 
all JPEG, MPEG1, and MP3 files.
s
Make sure that the file is named with the file extension (.mp3). 
Cannot see MP3 list to play 
music
s
MP3 files on your Memory Stick only can be played as background music during a 
Slide Show (see page 88).
MP3 file does not play back 
correctly
s
The Memory Stick Viewer supports only MP3 files with a fixed data rate of 
128 kbps (kilobits per second).
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