hitachi 49HL15W69

[jamaj]

hitachi 49HL15W69

On t-con I have spi winbond 25q16dvig

On mainboard I have spi 25L1606E and NAND MT 29F4G08ABAEA
CPU is ARM MSD95PMVW4-4-0036 ATPS618A
Panel is VES490QNUS-2D-U01

When I turn TV on - TV starts backlight is ON but no image no logo no picture on the screen. On motherboard optical socket is glowing red. TV rensponce on remote I can turn on and off via remote

I have searched internet looking for dump those spi`s and nand but no luck.
I searched official site for looking for any kind of firmware but no luck.

Maybe someone have dumps and wanna share with me

Here are some pictures














images t-con

[dick_barton]

Re: hitachi 49HL15W69

If you connect your PC does your PC recognise it is connected and can you send sound to the set.

[jamaj]

Re: hitachi 49HL15W69

yes when i connect laptop via hdmi. Laptop recognises that I connected TV and is sending sound via hdmi but on TV I have no sound ( I think in TV is set on different source than hdmi and I cant change source because I have no picture on it)

[dick_barton]

Re: hitachi 49HL15W69

Check what dc voltage you have at each side of the smd component marked N which is a fuse.

[jamaj]

Re: hitachi 49HL15W69

12v on each side

[nomoresonys]

Re: hitachi 49HL15W69

Might be able to check for sound, maybe try hooking up a dvd player hit play on dvd player, then use your remote to toggle source on tv, one click give it bit, see if you hear sound if tv remote and sound is working, you should hear sound when it hits the proper hdmi or rca setting.

[jamaj]

Re: hitachi 49HL15W69

yea I already tried that but I have only a hdmi cable. I was trying to change tv source via remote but no luck

[jamaj]

Re: hitachi 49HL15W69

I measured voltages on t-con and I have:
VCC F 3.3V - I have 3.3V
Fuse is OK and have 12v on both sides
VCC B 1.8V - I have 1.78V
HVIN 12V - 0v
VCC A 1.8V - I have 1.8V
VCC 3.3V - I have - 3.3V
VCC 1.05V - I have 1.17V
VINI_12V - I have 12V

AVDD - I have 0v
HAVDD - I have 0v

[dskall]

Re: hitachi 49HL15W69

i have the same problem, any solution?

Same problem trying to get sound?