Author Topic: Hitachi L42VC04UH Standbye (Read 5736 times)

Kev12175 · « **on:** May 22, 2013,12:35:09 »

Hi thought i would ask to see if anyone could help , My Hitachi l42vc04uh is stuck on standbye with a solid red light when you press any buttons ie power volume they just beep with no attempt of coming off standby. Has a 17pw26-4 power board and the power board is making a ticking noise and the tuner board the optical out is flashing red in time with the power supply tick . when the av board is disconnected the power supply sounds fine and help would be really appreciated thank you for taking the time to read kevin

Mulja tv repair portal · « **on:** May 22, 2013,12:35:09 »

fix2003 · « **Reply #1 on:** May 23, 2013,03:27:51 »

check the 14.3meg Xtal. X104 location left of main processor

watteau · « **Reply #2 on:** May 23, 2013,07:59:30 »

Hi,
Are all the power-supply voltages correct when the lead was disconnected?
If so, it could be a main pcb fault, loading the power-supply.
You could also check the usual power-supply faults: D983 SHORT, either D883/D882 LEAKY.
regards,
John

Mulja tv repair portal · « **Reply #2 on:** May 23, 2013,07:59:30 »

t1412 · « **Reply #3 on:** May 23, 2013,13:42:21 »

hi also check R1036 0 ohm resistor

regards
shaun

sinclairtv · « **Reply #4 on:** May 23, 2013,16:57:10 »

Iv had 2 sets this week where the inverter board was shutting the set down. Disconnected the board and fed it with a scart from Sky and the sound came up. Replaced boards and sets worked

Kev12175 · « **Reply #5 on:** May 25, 2013,01:57:41 »

Thanks everyone for your help checked the usual power supply faults seems fine , I am however no tv expert, I did find the 14.3meg Xtal. X104 but not sure how this is tested . Cant thank you all enough for taking the time to comment , might just change the av board and see what happens

Mulja tv repair portal · « **Reply #5 on:** May 25, 2013,01:57:41 »

Kev12175 · « **Reply #6 on:** June 04, 2013,15:17:17 »

Ok have changed the tuner board and TV set powers up fine , only problem I am having is the backlight is flickering when on dtv only seems to happen with ariel plugged in , any thoughts thanks kevin

Kev12175 · « **Reply #7 on:** June 06, 2013,05:08:05 »

All fixed , first time install and retune resolved the problem , tv is working as normal and a big thankyou to everyone who gave some advice on this thanks again

Mulja tv repair portal · « **Reply #7 on:** June 06, 2013,05:08:05 »

Mulja tv repair portal

News: