Troubleshooting; Specifications - Sony Trinitron KV-25FX20A Service Manual

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Troubleshooting

Here are some simple solutions to the problems which may affect the picture and sound.
Problem
No picture (screen is dark), no sound
Poor or no picture (screen is dark),
but good sound
Poor picture quality when watching a
RGB video source.
Good picture, no sound
No colour on colour programmes
Distorted picture when changing
programmes or selecting teletext
Noisy picture when viewing TV
channel
Remote control does not function
The standby indicator on the TV
flashes.
• If you continue to have these problems, have your TV serviced by qualified personnel.
• NEVER open the casing yourself.
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Solution
• Plug the TV in.
• Press the button on the front of TV.
• If the indicator is on, press button or a
programme number button on the remote control.
• Check the aerial connection.
• Check that the selected video source is on.
• Turn the TV off for 3 or 4 seconds and then turn it
on again using the button on the front of the TV.
• Using the MENU system, select the Picture Adjustment
display.
Adjust the brightness, picture and colour balance levels.
• From the Picture Adjustment display select RESET to return
to the factory settings.
• Press the button repeatedly on the remote control until
the RGB symbol is displayed on the screen.
• Press the +/– button on the remote control.
• If is displayed on the screen, press the button on the
remote control.
• Using the MENU system, select the Picture Adjustment
display. Adjust the colour balance.
• From the Picture Adjustment display select RESET to return
to the factory settings.
• Turn off any equipment connected to the 21 pin Euro
connector on the rear of the TV.
• Adjust Fine Tuning to obtain better picture reception.
• Replace the batteries.
• Contact to your nearest Sony service centre.
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Specifications

TV system
I
Colour system
PAL
NTSC 3.58, 4.43 (only Video In)
Channel coverage
UHF: B21-B69
Picture tube
Flat Display Trinitron
Approx. 72 cm (29 inches) (Approx. 68 cm picture
measured diagonally), 104° deflection
Rear Terminals
:1/ 21-pin Euro connector (CENELEC
standard) including audio/video input,
RGB input, TV audio/video output
s 21-pin Euro connector (CENELEC
:2/
standard) including audio/video input,
S-video input, monitor audio/video
output
Audio outputs - phono jacks
Front Terminals
2
3 video input - phono jack
2
3 audio inputs - phono jacks
s 3 S video input - 4 pin DIN
Headphones jack - minijack stereo
Design and specifications are subject to change without notice.
Sound output
2x7 W + 1x15 W (RMS)
Power consumption
150 W
Standby Power consumption
0.5 W
Dimensions (w x h x d)
Approx. 746 x 569 x 516 mm
Weight
Approx. 47.5 kg
Accessories supplied
1 Remote Control (RM-887)
2 Batteries (IEC designated)
Other features
TELETEXT, Fastext, TOPtext
NICAM Stereo
Sleep Timer
Smartlink
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