Hi,
This TV does not start up.
Possible fault is the psu, BN44-00270A
I could not find a schematic diagram for this model.
Is there some one to help me with a drawing.
Thanks in advance.
Regards,
Rien
Sziasztok!
A képen látható hosszú folt szerintetek is kijelző hiba? A tv 6 éves ue40f....
Ha világos a kép akkor alig látszik. Élőben még nem láttam. Először a fehér plexire gondoltam, de nem hiszem, hogy koszos lenne vagy tévedek? Köszönöm!
Mark: samsung
Model: LED 42D1
main: TP.VST59S.PB813
panal: V420HJ2-l0-DOO
DUMP OK
MODEL: Most Samsung plasmas
ISSUE: Cannot identify whether failure exists in main board, control board,
sustains or PSU.
DIAGNOSIS: Locate test header on control - should be 4x2 or 6x2.
Jumper appropriate pins (refer to service manual or PCB)
If you get test patterns:
- sustains, PSU, control okay
- main bad (control POSSIBLY bad - if input receiver bad)
If not:
- sustains, PSU, control or main are bad
Then identify failure in PSU - test output voltages
- if bad, fault lies in PSU, shorted sustain or main not turning
the PSU on
Then identify sustain board failures:
- unplug X-main, check if powers up and Y-main functions
(dim picture)
- unplug Y-main, check if powers up
(no picture)
Then identify control board failures:
- test SMD fuses
- scope LVDS waveforms going to control (if possible)
Might be main board failure. To confirm, test main board:
- blindly select audio source using INPUT button