SHARP 25WG3
Service Manual

25WG3

CHECKING OPERATION (VIDEO & AUDIO) NO CHECKING POINT SETTING CONDITION WAVEFORM OR OTHERS
12 NORMAL 1. Receive the MUSIC SOUND SIGNAL. If nothing is display mean 2. Press NORMAL key to set the sound contrast, colour, bright, tint, sound control settings will be preset to 2. Press NORMAL key to set the picture sharpness are all in normal normal setting as listed below: condition to normal . When the setting. BASS: CENTER MIDDLE: CENTER

NO CHECKING POINT SETTING CONDITION WAVEFORM OR OTHERS

6 NORMAL 1. Receive "COLOUR BAR PATTERN" If nothing is display mean condition to normal . When the sharpness are all in normal

signal. contrast, colour, bright, tint, NORMAL key is pressed, all the initial setting.

NORMAL key is pressed, all the initial picture control settings will be preset to TREBLE: CENTER normal setting as listed below: BALANCE: CENTER Contrast: MAX. Colour: CENTER 2. Press the CH UP / DOWN key for Brightness: CENTER SURROUND control setting with the R/C. Tint: CENTER 3. Press Volume Up to switch Surround Sharpness: CENTER Mode as follows, MOVIE/DISCO/POP/ 13 SURROUND 1. Receive the MUSIC SOUND SIGNAL. ROCK/CLASSIC/SPORTS/SIMULATED/ 7 CH COLOUR All Ch (1~99) will have an OSD display of OFF. 4. Make sure each mode is working properly. 14 SYSTEM 1. Receive the "PAL COLOUR BAR

DISPLAY the channel number in green colour under

AFT ON condition.

8 BASS 1. Receive the MUSIC SOUND SIGNAL. PATTERN" signal. Press the SYSTEM

2. Press CH UP / DOWN for key to set the COLOUR SYSTEM is OK or not. 3. Increase or decrease the BASS by signal. Press SYSTEM key to set the COLOUR SYSTEM mode to AUTO mode. Colour Bar signal is OK or not. 3. Receive the "NTSC 3.58 COLOUR BAR"

SOUND control setting with the R/C, MODE to AUTO mode. Check whether select BASS. colour of the PAL Colour Bar signal 2. Receive the "NTSC 4.43 COLOUR BAR" using the VOLUME UP / DOWN key.

4. Check whether the BASS (low

frequency) is OK or not. Check whether colour of the N4.43

12
2. Press Volume Up to switch each mode, 16 NOISE MUTE 1. Receive "PAL COLOUR BAR" signal. TREBLE. CHECKING 2. Turn up the volume control to maximum, 3. Increase or decrease the TREBLE by 4. Finally turn down the volume of CTV to 17 BILINGUAL 1. Receive "DUAL SOUND" signal. are okay separately or not. right speakers is OK or not.

9 MIDDLE 1. Receive the MUSIC SOUND SIGNAL.

2. Press the CH UP / DOWN key for SOUND signal. Press SYSTEM key to set the

control setting with R/C, select the COLOUR SYSTEM mode to AUTO MIDDLE. mode. Check whether colour of the N3.58 Colour Bar signal is OK not. 3. Increase or decrease the MIDDLE by

4. Check whether the MIDDLE (MIDDLE mode as follows, SAVE/ AV SELECT/ NR/

using the VOLUME UP / DOWN key. 15 1. Press FUNCTION key to select each

frequency) is OK or not. BLUE BACK/OSD.

10 TREBLE 1. Receive the MUSIC SOUND SIGNAL. make sure each mode is working

2. Press the CH UP / DOWN key for SOUND properly.

control setting with R/C, select the

4. Check whether the TREBLE (HIGH state.

using the VOLUME UP / DOWN key. speakers. Then put the unit in no signal

make sure sound is heard from the

frequency) OK or not. 3. Be sure that the sound mute is effective.

11 BALANCE 1. Receive the MUSIC SOUND SIGNAL. minimum.

2. Press the CH UP / DOWN key for SOUND

3. Increase decrease the left or right BILINGUAL.

control setting with R/C, select the 2. Press CH UP/DOWN key for SOUND BALANCE. control setting with the R/C, select

speaker BALANCE by using the 3. Press VOLUME UP/DOWN to select VOLUME UP / DOWN key. 1 & SOUND 2.

4. Check whether the BALANCE of left and 4. Check whether 1 & SOUND 2