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Samsung LN46A650A1F

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fix2003:
BN44-0023

not correct number I think

downunder:

Thanks, fix2003, I had noted a number missing from the PSU part number.

Hey Anzio, "LED_CTL (0V)" tends to indicate there's no command from the main board to turn on the backlights. I'd expect about 3V at that pin. If you unplug the main board from the power supply board, a lot of Samsungs will turn on with backlights illuminated. If you TV does that, it means PSU and backlights are working fine, and the Main board is faulty. Admit I've no idea what MSCL refers to and I think this model is not particularly prone to eeprom corruption resulting from venting PSU caps.

Bruce

Perhaps this is your PSU?

Anzio:
Sorry about the typo.  The PSU is BN44-00202A.  I'll try unplugging the main board from the power supply board and report back.

Anzio

jordan:
BN44-00202A

fix2003:
Samsung LE46 A BN44-00202A with power supply
•    LE46 is only after repeated clicking of
•    Builds a picture on TV - audio available
•    Status LED lights red
•    Terminates at fault due to longer startup times
•    Cold start after several attempts reboot directly
 Board Name:
•    BN44-00202A

 The following capacitors are most affected:

 Number
 Capacity
 Voltage
 PCB positioning

 2 x
 1000uF
 10V
 CM852, CM853

 2 x
 470uF
 25V
 CM872, CM873

 2 x
 820UF
 25V
 CB876, CM881

 2 x
 47uF
 50V
 CM871, CM875

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