Sharp CX51N3, Service Manual

10-1

10-2

CX51N3/N4

10

FUNCTION OPERATION CHECKING (VIDEO AND AUDIO)

NO. Adjustment part

Adjusting procedure and conditions

Waveform and others

1

2

COLOUR key

1. Receive "Colour Bar" signal.
2. Set P-Mode to select COLOUR.
3. Press  Volume Up/Down key to check whether

the COLOUR effect is OK or not.

CONTRAST
key

1. Receive "Monoscope Pattern" signal.
2. Set P-Mode to select CONTRAST.
3. Press Volume Up/Down key to check whether

the CONTRAST effect is OK or not.

3

BRIGHTNESS
key

1. Receive "Monoscope Pattern" signal.
2. Set P-Mode to select BRIGHTNESS.
3. Press Volume Up/Down key to check whether

the BRIGHTNESS effect is OK or not

4

TINT key

1. Receive the "NTSC Colour Bar" signal thru AV

in.

2. Set P-Mode to select TINT.
3. Press Volume Up/Down key to check TINT, UP

for GREEN direction and DOWN for PURPLE
direction whether is OK or not.

5

SHARPNESS
Key

1. Receive "Monoscope Pattern" signal.
2. Set P-mode to select SHARPNESS.
3. Press Volume Up/Down key to check whether

the SHARPNESS effect is OK or not.

6

CH DISPLAY
COLOUR

1. All Ch (1~99) will have an OSD display of the

channel number in green colour under AFT ON
condition.

7

NORMAL Key

1. Once in PICTURE Mode, and the NORMAL

key is pressed, all the settings will be present
to normal setting.
(Normal setting value for every mode).

»

 CONTRAST

: MAX

»

 COLOUR

: CENTER

»

 BRIGHTNESS : CENTER

»

 TINT

: CENTER

»

 SHARPNESS

: CENTER

Note: If nothing is display mean

contrast, colour, bright, tint
or sharpness are all in nor-
mal setting.

8

White Temp

1. Receive  "Monoscope Pattern" signal.
2. Set FUNCTION to select WHITE TEMP.
3. Press Volume Up/Down key to check WHITE

TEMP Option, STANDARD:
NORMAL SETTING, WARM for more
REDDISH direction changing, COOL for more
BLUISH direction changing.

FUNCTION OPERATION CHECKING (VIDEO AND AUDIO)

(Continued)

NO. Adjustment part

Adjusting procedure and conditions

Waveform and others

9

Colour
system

1. Receive the "PAL COLOUR BAR" signal, press

the COLOUR SYSTEM key to select modes
except PAL, check the COLOUR is not work-
ing properly. Then, select the "PAL" mode.
Check again its colour so that it is working prop-
erly.

2. Receive "NTSC 4.43/3.58 COLOUR BAR" sig-

nal thru AV, press COLOUR SYSTEM key to
select modes except N4.43/3.58, check the
COLOUR is not working properly. Then, se-
lect the "NTSC 4.43/3.58" mode. Check again
its colour so that it is working properly.

10

NOISE MUTE
CHECKING

1. Receive "PAL COLOUR BAR" signal.
2. Turn up the volume control to maximum, make

sure the sound is heard from the speakers.
Then put the unit in no signal state.

3. Check the sound mute is effective.
4. Finally turn sound level of CTV to minimum.

11

OSD
LANGUAGE
QUANTITY
CHECK

Check OSD LANGUAGE quantity and type as
English, Russian, Chinese, French, Arabic and
Malay.