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Service manuals & datasheets => LCD TV forum => Topic started by: michael first on June 24, 2008,01:42:41

Title: LG mod.42LF65
Post by: michael first on June 24, 2008,01:42:41

  Hi everybody,
The problem with this tv is that after 15 minutes of working the image goes off and the sound too;it seems the PS stops.So I'd like to see the Service Manual and most of all the diageram of the Power Supply.Thanks.   

Title: Re: LG mod.42LF65
Post by: lubos55 on June 24, 2008,04:34:57

Quote from: michael first on June 24, 2008,01:42:41

  Hi everybody,
The problem with this tv is that after 15 minutes of working the image goes off and the sound too;it seems the PS stops.So I'd like to see the Service Manual and most of all the diageram of the Power Supply.Thanks.   

Hi,

is the chassis LD75A???

Title: Re: LG mod.42LF65
Post by: tv tony on June 24, 2008,07:02:56

hello all, here is list of mods, direct from lg for lc and lf range



from tony walker

Title: Re: LG mod.42LF65
Post by: michael first on June 25, 2008,01:40:44

  Hi everybody,
 It,s right: the chassis is LD75A.I hope to solve out this problem.
                                    Thanks a lot Tony!

Title: Re: LG mod.42LF65
Post by: Κώστας on June 25, 2008,02:33:01

Download  here (http://www.tv.quuq.org/index.php?ind=downloads&op=entry_view&iden=639)

Title: Re: LG mod.42LF65
Post by: michael first on June 26, 2008,01:37:54

 Hi,
Downloaded the Service Manual I found out that the Power Supply is missing.So, I'm still looking for that.Does anyone get an idea where to  find it?
 Thanks,Michael

Title: Re: LG mod.42LF65
Post by: tv tony on June 26, 2008,11:59:24

sorry,
lg dont supply diagrams for psu, but i know them reasonably well, what is your problem, if no 5v line check bridge and r109.
good luck
tony walker

Title: Re: LG mod.42LF65
Post by: michael first on June 27, 2008,01:55:46

  Hi,
Thanks for the reply,but it's not the St-by supply that stops,it's the main supply to stop;when the TV stops working the green LED stays on,the inverter shuts down,and casually there's some noise from the loudspeakers;maybe the micom works erratically?
 Some new ideas,thanks! 

Title: Re: LG mod.42LF65
Post by: tv tony on June 27, 2008,09:33:04

hello again, did you do the mods i sent you, this sounds typical of the faults u are experiencing, we do these all day,
good luck

 tony walker

Title: Re: LG mod.42LF65
Post by: michael first on June 28, 2008,01:42:58

 Hi,Tony
I'll do these mods!You convinced me.
                           Thanks again!

Title: Re: LG mod.42LF65
Post by: michael first on June 30, 2008,06:57:27

Hi Tony,everything seems O.K!
  Thanks again!

Title: Re: LG mod.42LF65
Post by: tv tony on July 01, 2008,02:56:13

pleasure