Author Topic: Samsung PS50Q97HDX no power up relay clicking repeatedly (Read 6162 times)

mzone · « **on:** August 02, 2009,14:08:29 »

Samsung PS50Q97HDX relay clicking repeatedly but no power up.

voltages on psu look ok suspect might be corrupt eeprom.

however unsure eeprom location on this model or if i can short pins to get into service menu.

Mulja tv repair portal · « **on:** August 02, 2009,14:08:29 »

mzone · « **Reply #1 on:** August 02, 2009,20:05:37 »

just a update located eeprom i tryed shorting pins clock & data 5 & 6 on (24C256) eeprom

sets still refuses to power up relay clicks every 4-5 seconds im guessing eeprom must be ok ?
looked at the the electrolytic capacitors in psu all look ok ?

brian · « **Reply #2 on:** August 03, 2009,05:00:57 »

Hi
I think this model might be a plasma. If so, check for dry joints on gx801 on p/supply. I needed a magnifier to find them!!
Good luck
Bri.

Mulja tv repair portal · « **Reply #2 on:** August 03, 2009,05:00:57 »

mzone · « **Reply #3 on:** August 03, 2009,09:59:03 »

thanks brian,

can i ask what component you are referring to as i cant find gx801 on the bn44-00162a psu.

brian · « **Reply #4 on:** August 03, 2009,10:04:56 »

Hi
I,m working from memory, but look for three legged Fet,s (I think!)
mounted on heat sink. As I said I needed to use a magnifier to see them!
Cheers
Bri.

mzone · « **Reply #5 on:** August 03, 2009,10:10:29 »

ok brian thanks,

will check and let you know the outcome.

Mulja tv repair portal · « **Reply #5 on:** August 03, 2009,10:10:29 »

mzone · « **Reply #6 on:** August 03, 2009,10:40:09 »

reflowed all Fet,s psu still clicks every 4 seconds so guessing there must be another problem in psu someware.

Mulja tv repair portal · « **Reply #6 on:** August 03, 2009,10:40:09 »

Mulja tv repair portal

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