Samsung UA32F40000AR Not Switching on

[Grunder]

Good morning,

Samsung UA32F4000AR Not Switching on. Red standby led constantly lit when plugged in, wont respond to P function control or remote.

Voltages measured on MAIN pcb plug CN201 (legend on PSU pcb plug CNM803) Photos 1&2

Pin marked voltage measured voltage
1) 13v 13.4v
2) PWM_Dim 0v
3) 13v 13.4v
4) ECO_On/Off 13.4v
5) Vamp 13.4v
6) BLU On/Off 0v
7) Vamp 13.4v
8) Gnd 0v
9) Gnd 0v
10) Gnd 0v
11) B5 5.4v
12) A5 5.4v
13) B5 5.4v
14) Power_On/ Off 3.4v

IC901 Winbond 25Q128FVSG (MAIN pcb)



1) /CS 0v
2) DO(IO1) 3.4v
3) /WP (IO2) 0v
4) Gnd 0v
5) DI (IO0) 0v
6) CLK 0v
7) /Hold or /Reset 3.4v
8) Vcc 3.4v

I have repaired two of these sets before by just replacing the MAIN pcb, Could the MAIN pcb be repaired rather than just replacing it?

Please if anybody could steer me in the right direction

[senndogg]

Re: Samsung UA32F40000AR Not Switching on

The culprit stays in main cpu. So were we told at the official service repair center. In the F6000 smart models the issue relays in the emmc. Both chips are bga.

[Grunder]

Re: Samsung UA32F40000AR Not Switching on

Thanks Senndogg, the customer preferred to have the pcb replaced rather than repaired. Saves me from going any other possible route. Will have to wait until the next one comes around before attempting repairing the pcb. Thanks for input.

[pereramsm]

Re: Samsung UA32F40000AR Not Switching on

I have same issue. my case IC201 pin 8 shows 0 voltage and shows its ground can you say is this issue with IC201 or main IC?