No pictures sound ok back light can see for 1,2 second -problem in inverter board (V144-301) faulty one of hight voltage transformers (4006A4250037).
-No pictures -Fuse F1 and C16 or C5(150n) on inverter board.
Lost picture after diferent time-Dry joints on video procesor IC100 board (17MB10).
No pictures sound ok,no pictures after diferent time CHECK 5v on 17amp07 p/s board if less 3,0 or 1,5replaced C111(25v1000mkgf)
-Lines on the picture Bad conection between PS(PL108) and VIdeo board (PL100) .
-Flashing green line-Green horizontal line flashing across the screen intermittently-Remove resistor R149 on the Input signal board and replace it with Jumper SMD (0
-St-by redlight go green and back to red-Transistor(Q104 Bc548) and Resistor (100oM).
No sound-Very low sound on terrestial and no sound on Digital or any AV inputs-Replace memory IC302 Type 24LC16.All customer controls are set to minimum on the new IC. Please reset language and all picture controls to normal after replacing the IC.
-Lines on the screen,strange picture-Replaced cable from main board to the screen.
-No pictures or lost after 10,20sek -replaced inverter board(P.Suplly)17PW11-2 (24Volts)
-Unit does not work, standby LED not lighting-Replace Ferrite bead L500 and L501 with a jumper wire.
- Looks like no Synchro impulse eeprom fault -Just go in service menu(menu,4,7,2,5) option-Factory reset.
- no sound -Reinstate sound settings as follows:
Enter Service mode.Press Menu then 4,7,2,5.
Go to Audio menu.
Select Sound 2. and enter the following values:
FM PRESCALER 15
NICAM PRESCALE AVL ON 35
SCART PRESCALE AVL ON 14
SCART VOLUME AVL ON 122
GO TO STANDBY TO MEMORISE SETTINGS
Reinstate sound settings as follows.
- Lines on the screen -Cable from the main board to screen super glue it.
-Lines, no pictures back light present -resoldered IC224 (videoprocesor).
28LD5200- No colour Colour drops out after the unit has been running for two to three hours.Resolder capacitor C510 and other components in its vicinity.
-No sound bad conection in PFA1(HDMI board) pin 2 just take it out press and put it back.
-No sound bad soldering on cristal X800 (HDMI board).