Need Firmware & T-CON EEPROM Dump for Saba/ChangHong Model SA32S77A11, V320BJ8-Q01

Hi,

I need a firmware and T-CON EEPROM dump for this TV:

Brand: Saba/ChangHong
Model: SA32S77A11
T-CON: V320BJ8-Q01
Serial number: 3124SA-A20802892

I tried to download a firmware from https://aftersales.changhong.cz/en/firmwaresearch/
but after flashing, the TV has backlight and sound but no image... I suspect
they do not provide project_id firmware...

Today, I desoldered the T-CON EEPROM and I made a backup dump.
If someone has a working dump, I can do a comparison.

Thanks in advance,
Gennaro

Hello, why do you think that the logic memory is damaged?
Have you checked the voltages on tcon, 12v power supply and VGL, VGH? Have you checked the CKV signals to see if there is any low resistance?
I am providing a photo with important measurement points for comparison.

Hi,
thanks a lot for the schema !

I checked voltage:

V12VI = 12.4V
VGH = 28V
VGL = -7.5V
VDDAM = 8.5V
VAA = 17V

How can I check CLK lines ? I have also an oscilloscope if it can help...
I suspect that ChangHong update has rewritten the T-CON EEPROM and now the TV (that is branded SABA)
cannot display the image...

Regards,
Gennaro

Added after 22 [minutes]:

... regarding CK lines I found in a corner the following labels:

CK1_LS
CK2_LS
CK3_LS
CK4_LS
CK5_LS
CK6_LS

for each of them I have ~6 Mohm of resistance to GND...

Thanks,
Gennaro

solder there a blank eeprom and see what is