DOWNLOAD Sony KV-XF25M50 (serv.man3) Service Manual ↓ Size: 1.75 MB | Pages: 70 in PDF or view online for FREE

Model
KV-XF25M50 (serv.man3)
Pages
70
Size
1.75 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-xf25m50-sm3.pdf
Date
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Sony KV-XF25M50 (serv.man3) Service Manual ▷ View online

– 25 –
KV
-XF25M50/XF25M61
KV
-XF25M80/XF25M93
RM-954
31
Additional Information
• Check the antenna cable and
connection on the TV, VCR and on the
wall. (page 4)
• Adjust the antenna direction.Contact a
Sony dealer for advice.
• Press A/B 
 until a good sound is
heard.
• Display the SET UP menu and adjust
“PIC ROTATION” so that the picture is
aligned to the TV screen. (page 23)
• Contact your nearest Sony service
center.
—
—
Stereo broadcast sound
switches on and off or is
distorted.
or
The sound switches
between monaural and
stereo frequently.
(KV-XF25M61/XF25M93
only)
Picture slant
The u indicator on your
TV flashes red for about 3
seconds per interval.
TV cabinet creaks.
A “boom” sound is heard
when the TV is turned on.
Possible cause
Symptom
Solutions
• Connection is loose or the
cable is damaged.
• The antenna direction is
inappropriate.
• Broadcast signal has a
transmission problem.
• The terrestrial magnetism
affects your TV set.
• Your TV may need service.
• Changes in room
temperature sometimes
make the TV cabinet
expand or contract,
making a noise. This does
not indicate a malfunction.
• The TV’s demagnetizing
function is working. This
does not indicate a
malfunction.
– 26 –
KV
-XF25M50/XF25M61
KV
-XF25M80/XF25M93
RM-954
34
Additional Information
Troubleshooting Shortcuts
For better viewing, please check the following connections.
• Snowy
• Distorted
• Noisy/
picture
picture
distorted
sound
Wall antenna
terminal
UHF
VHF
Booster
VCR
Check the antenna direction.
Incorrect antenna direction may cause:
Check the
antenna type.
Wrong type of antenna
may cause:
• No picture
• Snowy picture
Check connection
on the wall antenna
terminal.
Loose connection may
cause:
• Snowy picture
• Distorted sound
Check if you need
booster to increase
signal level.
Too strong signal level
may cause:
• Distorted picture
• Noisy sound
Antenna connection
(KV-XF25M61)
35
Additional Information
P166 SECTEXT   166   FR1  MAR   03:59:09
Fom Singapore
To PARIS
To OSAKA
To ROMA
To SYDNEY
Day   Dep/Arr       Flight    Alrcraft
1.6   220/0588     SQ28       747
   2   2130/1225   PA115      L15 
   3   2115/1330   SQ26       747
2.7   2130/0745   SQ24       747
   4   2300/0915   AZ487     747
2.5   1000/1715   SQ6         747
4.6   0930/2015   CX522     L10 
   1   2210/0610   SQ21A    747 
   2   2100/0835   SQ21A    747
Connection
to TV
Check connection
on the VCR and on
the TV.
Loose connection may
cause:
• Snowy picture
• Distorted sound
• No picture
For more information, please see
“Troubleshooting” on page 31, 32 and
33. Or consult your dealer for
guidance.
AC Connection
Check connection on
the AC socket.
Loose connection may cause:
• no power
• no picture with no sound
• Double image
• Missing
picture
Teletext
characters
– 27 –
KV
-XF25M50/XF25M61
KV
-XF25M80/XF25M93
RM-954
32
Additional Information
Identifying parts and controls
Refer to the pages indicated in parentheses ( ) for details.
Front panel
1
U
 (main power) button (9)
2 AUTO PROGR (program) button (5)
3 MENU button (18)
4 PROGR +/– (program) buttons (9)
5
¸
 +/– (volume) buttons (9)
6
…
 (TV/video) button (10)
7
2
 (headphone) jack
ONE-PUSH  AUTOMATIC  PROGRAMMING
PROGR
33
Additional Information
Button function
For general TV operations
For Teletext operations
Remote Control
1
4
7
-/--
2
5
8
0
3
6
9
FAVORITE
SOUND
MODE
PIC MODE
ENTER
MENU
A/B
SURROUND
5
4
3
6
7
8
9
!¡
!º
!™
1
4
7
-/--
2
5
8
0
3
6
9
FAVORITE
SOUND
MODE
PIC MODE
ENTER
MENU
A/B
SURROUND
!¶
!∞
!¢
!£
!§
Names/symbols of buttons on the
remote are indicated in different
colors to represent the available
functions.
Label color
White
Green
!¢ SURROUND button (14)
!∞ FAVORITE button (13)
!§ PIC MODE button (12)
!¶ Teletext operation buttons
(KV-XF25M61)
 (text)
 (enlarge)
 (reveal)
 (hold)
 (index)
 (text clear)
p
  (FASTEXT: red, green, yellow, blue)
1 ¤ (muting) button (10)
2
(display) button (10)
3 u (power) button (9)
4 … (video) button (10)
5 ; (TV) button (10)
6 Number buttons (9)
7 JUMP button (10)
8 Menu operation buttons (18)
MENU button
+ or – buttons
ENTER button
9 PROGR +/– button (9)
!º A/B button (15)
(KV-XF25M61/XF25M93 only)
!¡ Timer setting buttons (11)
(wake up timer)
(sleep timer)
!™ . (volume) +/– buttons (9)
!£ SOUND MODE button (12)
– 28 –
KV
-XF25M50/XF25M61
KV
-XF25M80/XF25M93
RM-954
SECTION 2
DISASSEMBLY
2-3. CHASSIS ASSY REMOVAL
2-1. 3D SPEAKER BOX REMOVAL (KV-XF25M93 only)
1
 Chassis assy
2-2. REAR COVER REMOVAL
1
 3D Speaker box assy
Red wire
Black wire
1
 Eight screws
     (+BVTP 4 
× 
16)
1
 Three screws
     (+BVTP 4 
× 
16)
1
 One screw
     (+BVTP 4 
× 
16)
2
 Rear cover
2-4. F BRACKET REMOVAL
4
 Two screws
     (+BVTP 3 
× 
12)
5
 F bracket
2
 Two claws
1
 Three connectors
3
 F board
6
 Two screws
     (+BVTP 3 
× 
12)
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