1
No sound
Defective Reset IC of IC604.
1) Check volume and speaker.
- Speaker
Defective MSP3411 of IC601.
- Sound comes out only when being inputted into Audio
- Earphone Defective B+(8V,5V) of IC603. L/R.
2) Check after replacing IC604.
3) Replace IC601.
4) Check and replace B+ of IC603.
2
Video color beat noise
Earphone shield case being touched.
Check the mould of shield and SJ209, Replace shield case.
Soldering IC301 and IC510.
Re-soldering
1
No screen
Input error of inverter connector
1) Bend the pin legs of P1 connector -> recheck them
2) Check and repair F804.
P804 and P704 connector
1) Check and fix P704 connector
being slipped out
2) Check and fix the components at P704 LCD module
and at main board.
3) Check Pin21.
Cracked components and
Check and repair tuner board and main board
soldering at tuner board
2
Dark screen
1) Defective LCD lamp
1) Replace the inverter
2) Defective inverter
2) Replace the LCD lamp
3) Input error of inverter connector
2) Check the connector input.
- 11 -
TROUBLESHOOTING
1. General Features
2. PC Mode
No.
Symptom
Cause
Check Point
No.
Symptom
Cause
Check Point
Check Point
1
Screen noise
Clock or phase being
1) Resettig is needed according to the video card of each
not able to be adjusted.
PC.
2) Horizontal noise : adjust phase until no horizontal
noise occurres.
3) Vertical noise : adjust clock in menu until no vertical
noise occurres.
2
Screen position error
Screen position error
1) Play the Auto Configure in Menu.
horizontally or vertically
2) Adjust horizontal and vertical position until the screen
displayes normally.
3
Color beat noise
Soldering D-SUB Jack of JA202
Recheck adn repair JA202,IC202
and IC202.
3. TV and external input
No.
Symptom
Cause
Содержание RZ-23LZ20
Страница 12: ...BLOCK DIAGRAM 12 ...
Страница 13: ... 13 PRINTED CIRCUIT BOARD MAIN TOP ...
Страница 14: ... 14 MAIN BOTTOM ...
Страница 15: ... 15 POWER TOP POWER BOTTOM ...
Страница 16: ... 16 SIDE AV CONTROL LED ...
Страница 20: ...SVC SHEET 3854VA0128A ...
Страница 26: ...P No 3854VA0128A S 1 2 2003 06 18 ...
Страница 27: ...P No 3854VA0128A S 2 2 2003 06 18 ...
Страница 28: ...Jun 2003 Printed in Korea P NO 3828VD0131R ...