Author Topic: humax lgb-19dzt stuck in standby (Read 6405 times)

jima1vespas · « **on:** May 27, 2009,11:00:45 »

humax lgb-19dzt stuck in standby does anyone know how to fix this fault?

Mulja tv repair portal · « **on:** May 27, 2009,11:00:45 »

Keith · « **Reply #1 on:** June 02, 2009,06:04:02 »

Stuck in standby or no remote control functions is usually caused bt the electrolytics in the PSU.
The main culprit is a 1500uF, I think, cant remember the circuit ref as I havent seen one for a while. But it is visually faulty!

Keith

jima1vespas · « **Reply #2 on:** June 07, 2009,05:16:01 »

Hi thanks for the info, none of the caps were visually faulty but i replaced them all to make sure however this has made no difference and stil won't come out of standby

Mulja tv repair portal · « **Reply #2 on:** June 07, 2009,05:16:01 »

WILLYAM1 · « **Reply #3 on:** June 09, 2009,15:53:47 »

power supply stuck in stby.
check 5v stby in p.s whith scop.if ok check one of the leg (power on) in p.s (3v-5v)by operting remot
ifok problem in p.s if no problem is in main board ceck 1.8v 2.5v 3.3v regulators also waveform in x tal cristal and disconect cabel of panel botton from main board could be memory or prosesor .
good luck.
willyam1

jima1vespas · « **Reply #4 on:** June 20, 2009,12:06:49 »

there is a 5v on the s/b but the other 12v and 5 volt supplies are missing should they be there when the tv is in standby or just when its powered up, i do not have the remote so can not do the test you said

Mulja tv repair portal · « **Reply #4 on:** June 20, 2009,12:06:49 »

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