Sharp 25WG3, Service Manual

Page: 12 / 44

12
25WG3
1.
Receiv
e the "COLOUR BAR P
A
TTERN"
signal.
2.
Press NORMAL k
e
y to set the picture
condition to nor
mal .
When the
NORMAL k
e
y is pressed, all the initial
picture control settings will be preset to nor
mal setting as listed belo
w:
Contr
ast:
MAX.
Colour
: CENTER
Brightness:
CENTER
Tint: CENTER Shar
pness:
CENTER
CHECKING OPERA
TION (VIDEO & A
UDIO)
NO
CHECKING POINT
6
NORMAL
SETTING CONDITION
WAVEFORM OR OTHERS
All Ch (1~99) will ha
v
e
an OSD displa
y of
the channel n
umber in green colour under
AFT ON condition.
7
CH COLOUR DISPLA
Y
If nothing is displa
y mean
contr
ast, colour
, br
ight, tint,
shar
pness are all in nor
mal
setting.
1.
Receiv
e the MUSIC SOUND SIGNAL.
2.
Press the CH UP / DO
WN k
e
y f
o
r
SOUND control setting with the R/C
,
select the BASS
.
3.
Increase or decrease the BASS b
y
using the
V
OLUME UP / DO
WN k
e
y.
4.
Chec
k whether the BASS (lo
w
frequency) is OK or not.
8
BASS
1.
Receiv
e the MUSIC SOUND SIGNAL.
2
.
Press the CH UP / DO
WN k
e
y f
or SOUND
control setting with the R/C
, select the
MIDDLE.
3.
Increase or decrease the MIDDLE b
y
using the
V
OLUME UP / DO
WN k
e
y.
4.
Chec
k whether the MIDDLE (MIDDLE
frequency) is OK or not.
9
MIDDLE
1.
Receiv
e the MUSIC SOUND SIGNAL.
2
.
Press the CH UP / DO
WN k
e
y f
or SOUND
control setting with the R/C
, select the
TREBLE.
3.
Increase or decrease the
TREBLE b
y
using the
V
OLUME UP / DO
WN k
e
y.
4.
Chec
k whether the
TREBLE (HIGH
frequency) is OK or not.
10
TREBLE
1.
Receiv
e the MUSIC SOUND SIGNAL.
2
.
Press the CH UP / DO
WN k
e
y f
or SOUND
control setting with the R/C
, select the
BALANCE.
3.
Increase or decrease the left or r
ight
speak
er BALANCE b
y
using the
V
OLUME UP / DO
WN k
e
y.
4.
Chec
k whether the BALANCE of left and
right speak
ers is OK or not.
11
BALANCE
1.
Receiv
e the MUSIC SOUND SIGNAL.
2.
Press NORMAL k
e
y to set the sound
condition to nor
mal .
When the
NORMAL k
e
y is pressed, all the initial
sound control settings will be preset to nor
mal setting as listed belo
w:
BASS: CENTER MIDDLE: CENTER TREBLE: CENTER BALANCE: CENTER
NO
CHECKING POINT
12
NORMAL
SETTING CONDITION
WAVEFORM OR OTHERS
If nothing is displa
y mean
contr
ast, colour
, br
ight, tint,
shar
pness are all in nor
mal
setting.
1.
Receiv
e the MUSIC SOUND SIGNAL.
2.
Press the CH UP / DO
WN k
e
y f
o
r
SURR
OUND control setting with the R/C
.
3.
Press
V
olume Up to s
witch Surround
Mode as f
ollo
ws
, MO
VIE/DISCO/POP/
R
OCK/CLASSIC/SPOR
TS/SIMULA
TED/
OFF
.
4
.
Mak
e sure each mode is w
o
rking proper
ly
.
13
SURR
OUND
1.
Receiv
e the "P
AL COLOUR BAR
P
A
TTERN" signal.
Press the SYSTEM
k
e
y to set the COLOUR SYSTEM
MODE to A
U
T
O
mode
. Chec
k whether
the colour of the P
AL Colour Bar signal
is OK or not.
2.
Receiv
e the "NTSC 4.43 COLOUR BAR"
signal.
Press the SYSTEM k
e
y to set the
COLOUR SYSTEM mode to A
U
T
O
mode.
Chec
k whether the colour of the N4.43
Colour Bar signal is OK or not.
3.
Receiv
e the "NTSC 3.58 COLOUR BAR"
signal.
Press the SYSTEM k
e
y to set the
COLOUR SYSTEM mode to
A
U
T
O
mode
. Chec
k whether the colour of the
N3.58 Colour Bar signal is OK or not.
14
COLOUR SYSTEM
1.
Press FUNCTION k
e
y to select each
mode as f
ollo
ws
, SA
VE/ A
V
SELECT/ NR/
BLUE BA
CK/OSD
.
2.
Press
V
olume Up to s
witch each mode,
mak
e sure each mode is w
o
rking
proper
ly
.
15
FUNCTION
1.
Receiv
e "P
AL COLOUR BAR" signal.
2.
T
u
rn
up the v
olume control to maxim
um,
mak
e sure the sound is heard from the
speak
ers
.
Then put the unit in no signal
state
.
3.
Be sure that the sound m
ute is eff
ectiv
e
.
4.
Finally tur
n do
wn the v
olume of CTV to
minim
um.
16
NOISE MUTE CHECKING
1.
Receiv
e "DU
AL SOUND" signal.
2.
Press CH UP/DO
WN k
e
y f
or SOUND
control setting with the R/C
, select
BILINGU
AL.
3.
Press
V
OLUME UP/DO
WN to select
SOUND 1 & SOUND 2.
4.
Chec
k whether SOUND 1 & SOUND 2
are oka
y separ
ately or not.
17
BILINGU
AL