This is a smart tv:
Make: Digihome
Model: 50292UHDDLEDCNTD
Power supply: Vestel 17IPS72
Main board: Vestel 17MB130P
Chassis: VES500QNDC-2D-N11
The problem is this, when I plug the tv in:
- standby light start flashing/blinking regularly
- the backlight comes on
- no picture, logo, pixel will come on the screen, pure black with backlight
- the standby light will flash 27 times and the tv will restart
No obvious bad capacitors. No shorted diodes. Checked all transistors in secondary and nothing seem shorted. All checks done in circuit, without removing the components.
I have disconnected the backlight, no change.
I have disconnected the main board from the power supply and checked some voltages but without knowing how much to expect on each rail, it's hard to know if the power supply is running well.
There is a rail with 1.6V, few rails 11.6V and another one 23.2V.
Any advice will be greatly appreciated, I'm a hobbyist, not a pro.
Thank you
Attached Files
