Sony Trinitron KV-25XBR Service Manual page 8

KV-25XBR
~M-724/APM-X3U
Preparation
Make sure the following are properly set.
• On°screen "VIDEO 1, 2 or 3", "EXT-A" or "'RGB" * in-
dicators and the RGB or VIDEO lamp should be off.
(Press TVNIDEO button or RGB button as many times
as necessary until they go out.)
• AUTO STEREO selector should be set to ON
(depressed).
Depending on the channel to be viewed, check the
following and change as necessary.
• CABLE ON/OFF button
For VHF and UHF channels, set to OFF
.o.,.
For cable TV channels, set to ON
=·
• On-screen "AUX"* indicator
(Press ANT/AUX button to change as necessary.)
For VHF, UHF and regular cable TV channels:
The indicator should be off.
For pay cable TV channels:
The indicator should be displayed.
*The displays, "VIDEO" "EXT-A", "RGB" or "AUX" in-
dicate that signals fed in through the VIDEO 1/3 INPUT
jacks, VIDEO 2 IN AV uniconnector, the external audio
jacks, the RGB MULTI INPUT connector or through the
AUX terminals are being received.
1 Press POWER to turn on the TV.
The channel number will be displayed on the screen
and the SLEEP lamp will light up for several seconds.
2
Select channels in one of the following two ways.
• Press the numeral(s) of the channel and then press
ENTER.
Ex. To select channel 6, press 6 and then ENTER.
To select channel 125, press 1, 2, 5 and then
ENTER.
If you pressed a wrong numeral, wait for a few
seconds and it wi!! disappear. Then tty again.
• Press CH "+" for higher-numbered channels and
"-" for lower-numbered channels. Preset channels
will appear in sequence. (For presetting desired chan-
nels, see page 9.)
The channel display will remain on the screen for a
few seconds. To keep the display on the screen,
press DISPLAY.
3
Adjust the volume and picture to your preference, if
necessary.
Press VOL "+" to increase volume, or "-" to
decrease it.
Press PICTURE "+" to increase picture contrast, or
"-" tp decrease it.
If
the picture rolls vertically,
turn V HOLD control on the
rear panel until the picture
stabilizes.
r--6
V HOLD
To mute the sound immediately, press MUTING. The
"MUTING" display wiil appear and ,remain
on
Jhe
screen. Press it again to rnstore the sound tb its
previously-set level or press VOLUME+.
To turn off the set, press POWER again.
To have the set turn off automatically after one hour,
press SLEEP. The "SLEEP" display will appear 911 the
screen a few seconds and the SLEEP lamp on ·the
TV
will remain lit for one hour.
To cancel the sleep timer, press SLEEP again so that
the "SLEEP" display disappears, or turn off the TV.
LISTENING TO MULTICHANNEL TV SOUND(MTS)
BROADCASTS
In the years to come, an increasing number of programs
will be broadcast in stereo. Called Multichannel, TV
Sound or MTS, the new technology will greatly enhance
TV viewing by bringing you programs with high fidelity
stereo sound. MTS also provides for an extra channel
called the Second Audio Program or SAP which broad-
casters can use to transmit a second language for bil-
ingual transmissions or some other sound track.
To receive a stereo program
Normally set the AUTO STEREO selector to ON (de-
pressed). In this position, the STEREO lamp .on the TV
will light up whenever a stereo broadcast is received.
To listen to the stereo sound, select the MAIN mode
with the MTS button so that the on-screen MAIN in-
dicator appears. The stereo sound will be heard from
the left and right speakers.
Every push on the MTS button changes the indicator
below the channel number as follows:
MAIN --- SAP --- BOTH
Select the appropriate mode according to various possi-
ble incoming broadcast signals. You can preset the
mode while the indicators are yellow so that the
selected sound will be heard automatically when the
MTS program begins. The indicators turn green when a
MTS program is actually being received.
When there is a SAP (Second Audio Program) broadcast
Select the SAP mode so that the SAP indicator will be
displayed and only the SAP sound will be heard from
both speakers.
To listen to both MAIN and SAP broadcasts
Select the BOTH mode so that the BOTH indicator is
displayed. The MAIN and SAP sounds will come out
from the left and right speakers respectively.
The MAIN sound becomes monaural(mixed) even if it is
a stereo broadcast, as the sound comes only from the
left speaker.
Notes
• The selected mode will be retained even after the
power has once been turned off. ·
• There may be cases of stereo broadcasts wh.ere ex-
cessive "noise" will be heard due to a weak incoming
signal. By switching the AUTO STEREO selector to OFF
and returning to a monaural mode, the noise should be
eliminated.
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