Mulja tv repair portal

Equipment Repairs => LCD TV forum => Topic started by: taloola on January 14, 2008,07:45:16

Title: hyundai lcd 3773
Post by: taloola on January 14, 2008,07:45:16

does anyone know where i can get a service manual for the above lcd.my lcd is stuck in standby.does anyone know of other lcd's that use the same internals as hyundai,cheers

Title: Re: hyundai lcd 3773
Post by: mulja on January 15, 2008,06:42:03

Upload pictures of chassis

Title: Re: hyundai lcd 3773
Post by: taloola on January 19, 2008,02:42:17

here are pics of chassis and psu

Title: Re: hyundai lcd 3773
Post by: Tmg on January 24, 2008,18:39:32

service manual link on Hyundai website not working yet.
http://www.servicedelight.com/const.html

Title: Re: hyundai lcd 3773
Post by: taloola on January 26, 2008,10:41:23

hi, could anyone tell me why i wouldnt be able to read any voltages coming straight off the transformer coils(transformer good)secondary side.i cant get the earth either.(see picture)using a multimeter.also the voltage on the primary side is -ve dc.the psu is from a lcd tv

Title: Re: hyundai lcd 3773
Post by: Tmg on January 26, 2008,17:09:13

ok so you have 4.2v across c857 which is the standby psu. what are the other voltages out of the main psu. and what is the main problem with the set. any lights or noises.

Title: Re: hyundai lcd 3773
Post by: taloola on January 30, 2008,04:43:40

thanks for reply,when i plug in the only voltage present is 3.6-4.2v standby ..when i have managed to get it to switch on all the voltages are ok.when it wont switch on i get 3.6-4.2v on standby,if i turn it on i get a quick flash of approx 2.6 v on the 'power on' terminal and then it pulses that same 2.6v every second...with the power on but the power board disconnected from the main boardi get 4.99 v on standby,is it normal for  the voltage drop from 4.99 to 3.6-4.2(set in off state),thanks