Sony KV-14FV1B, Service Manual

Page: 15 / 84

– 15 –
20
Video Head Cleaning
Even the Auto Head Cleaner built into this set automatically cleans the video heads when a cassette is loaded or unloaded. However, if the playback pictures are noisy and hardly visible or no picture appears, video heads probably
need
an
extra
cleaning.
In
this
case,
clean
the
video
heads
using
the
V-25CL
video
head
cleaning
tape
(not
supplied) or ask Sony service personnel to clean the video heads. Do not use a commercially available wet-type cleaning tape, as it may damage the video heads.
Symptoms caused by contaminated video heads
Worn Video heads
If your Video TV displays a poor picture after you clean the video heads, you may need to replace them. Consult your dealer or the Sony Service Centre nearest you.
Check the video heads after 1,000 hours of use
A
Video
TV
is
a
high
precision
machine.
It
must
record
on
or
play
from
m
agnetic
tapes
on
which
the
image
signals
from the colour TV or the video camcorder are recorded. The video heads or mechanical parts for transporting the tape are contaminated or worn after extended use. You should have your Video TV checked after each 1,000 hours of use.
Additional Information
• Normal picture • Rough picture • Unclear picture • No picture (or black& white screen a
ppears)
initial
terminal
22
Additional Information
Solution •
Check the aerial connection.
•
Plug
the
Video
TV
in
and
press
the
button
on
the
front
of
T
V
or
if
the
standby
indicator
is on, press
button.
•
Using
the
menu
system,
select
the
“Picture
Adjustment”
menu
and
select
“Reset”
to return to the factory settings.
•
Check that the optional equipment is on and press the
button repeatedly on
the remote control until the correct input symbol is displayed on the screen.
•
Press the
+/- button on the remote control.
•
Using
the
menu
system,
select
the
“Picture
Adjustment”
menu
and
select
“Reset”
to return to factory settings.
•
Turn off any equipment connected to the Scart connector on the rear of the
T
V.
•
Using
the
menu
system,
select
the
“Picture
Rotation”
option
in
the
“Set
U
p”
menu
to correct the picture slant.
•
Using
the
menu
system,
select
the
“Manual
Programme
Preset”
menu
and
adjust
Fine Tuning (AFT) to obtain better picture reception.
•
Reset
the
clock
and
timer
settings.
for
details
refer
to
the
section
“Setting
the
Clock
Manually” (see page 7).
•
Switch
off,
disconnect
the
AC
power
cord
and
leave
the
set
for
about
one
minute.
• Using the menu system, select the “VCR Set Up” menu and check the “Colour
System” option.
• Adjust the tracking manually. For details refer to the section “Adjusting the
Tracking” (see page 16).
•
Clean
the
video
heads.
For
details
refer
to
the
section
”Video
Head
Cleaning”
(see
page 20).
• Use a new tape. • Use a new tape. • Cover the safety tab hole. For details refer to the section “ “Protecting your
cassette against accidental erasure” (see page 10).
• Insert a cassette with its safety tab intact. • Rewind the tape. • Set the current time and date. For details refer to the section “Setting Clock
Manually” (see page 7).
• Cover the safety tab hole. For details refer to the section “ “Protecting your
cassette against accidental erasure” (see page 10).
• Insert a cassette with its safety tab intact. • Rewind the tape. •
Check
the
settings
for
timer
recording.
For
details
refer
to
the
section
“Checking/
Adding/Changing/Cancelling the Timer Settings” (see page 15).
• Press EJECT
6
to eject the cassette that it is already inserted.
• Replace the batteries. • Contact to your nearest Sony service centre.
In case of problems, have your TV serviced by qualified personnel. Never open the casing yourself.
Troubleshooting
If you have any problems while viewing your Video TV, please check the following troubleshooting guide. If the problem persists, contact your Sony dealer.
Problem TV Section
No picture (screen is dark) and no sound. Poor or no picture (screen is dark), but good sound. No picture when watching equipment connected to the Scart connector. Good picture, no sound. No colour on colour programmes. Distorted picture when changing programmes or selecting teletext. Picture slanted (only for KV-21FV1U). Noisy picture when viewing a TV channel.
Clock section
The clock has stopped and “--:--“ is displayed.
Playback section
Power is on, but the tape does not run. Poor playback picture. The sound drops out.
Recording section
The cassette is ejected when you press REC
r
.
Cannot record.
Timer recording section
Cannot program a recording using the timer. The cassette is ejected when you press TIMER REC ON/OFF. The TIMER REC indicator on the front of
the
Video
TV
does
not
light
up
even
though you press TIMER REC ON/ OFF.
Others
A cassette cannot be inserted. Remote control does not function. The
standby
indicator
on
the
Video
TV flashes.