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Equipment Repairs => LCD TV forum => Topic started by: maff99 on August 14, 2008,08:20:29

Title: Samsung le32r51bd l.c.d.
Post by: maff99 on August 14, 2008,08:20:29

Hi guys,
has anyone by chance got a copy of the service manual for this model,Ive got one that comes out of stand by but no sound or picture.All the main power supply voltages are present & I think  the regulators on the main p.c.b. all seem o.k.24volts to back lights o.k. but lights off?any ideas ? anyone?
 many thanks Maff.

Title: Re: Samsung le32r51bd l.c.d.
Post by: maff99 on August 23, 2008,06:29:39

Hi guys,has anybody had problems with this model?my onethats in for repair comes outof stand by,red light flashes 4 times but no sound or picture.the back lights are off.p.s.u. rails all up & running o.k.down loaded manual from site for le32r41b,but the regulators on main signal p.c.b. are nowhere near the same numbers or layout.haveing looked on the net it seems r51bd was made for currys group but should be same as r41 ,but it's not.Any idea's on this.I  hate to be beaten  by t.v.'s.
Many thanks Maff

Title: Re: Samsung le32r51bd l.c.d.
Post by: kpee51 on August 23, 2008,10:33:04

Hi
We have had similar sets in our workshop. In most cases the cause has been electrolytics on the secondary outputs on the main power board. Usually around 1000uFd with high ESR check the tops as they show signs of swelling. Change to better quality Panasonic FC/FM or Rubycon YXF

Keith (HertsMedia)