Hi all -
I currently have a Samsung LN32C450E1DXZA. I searched for "LN32C450E1*" on this forum and found several references to this TV. Looks like there is a good handful of them with bad main boards - mine is no different.
When i have the cable between the mainboard and power board disconnected, the back light turns on fine and the pull up on the PS_ON signal turns the power supply on. The 13V and 24V volt rails are good.
When i add the mainboard back in, I see that the CCFL tubes flicker on/off about 3-4 times then it stops.
I'm curious if anyone has found the reason for the main board to crap out.
Vitals:
TV Model: Samsung LN32C450E1DXZA
Main board: BN41-01334A 2009.01.05 / BN94-02655A
Power board: BN44-00338B (P2632HD_ADY)
I checked CM808 (the 18nF cap) on the power board. This seemed to be a fairly common failure with this model as well. My ESR/Capacitance meter said it is 17.89nF.
I also checked the output caps from the power board.
CM858 | 25V rated @ 1000uF -> reads 896uF
CM859 | 25V rated @ 1000uF -> reads 886uF
CM853 | 10V rated @ 2200uF -> reads 1911uF
CM854 | 10V rated @ 2200uF -> reads 1918uF
CM851 | 10V rated @ 2200uF -> reads 1937uF
I currently have a Samsung LN32C450E1DXZA. I searched for "LN32C450E1*" on this forum and found several references to this TV. Looks like there is a good handful of them with bad main boards - mine is no different.
When i have the cable between the mainboard and power board disconnected, the back light turns on fine and the pull up on the PS_ON signal turns the power supply on. The 13V and 24V volt rails are good.
When i add the mainboard back in, I see that the CCFL tubes flicker on/off about 3-4 times then it stops.
I'm curious if anyone has found the reason for the main board to crap out.
Vitals:
TV Model: Samsung LN32C450E1DXZA
Main board: BN41-01334A 2009.01.05 / BN94-02655A
Power board: BN44-00338B (P2632HD_ADY)
I checked CM808 (the 18nF cap) on the power board. This seemed to be a fairly common failure with this model as well. My ESR/Capacitance meter said it is 17.89nF.
I also checked the output caps from the power board.
CM858 | 25V rated @ 1000uF -> reads 896uF
CM859 | 25V rated @ 1000uF -> reads 886uF
CM853 | 10V rated @ 2200uF -> reads 1911uF
CM854 | 10V rated @ 2200uF -> reads 1918uF
CM851 | 10V rated @ 2200uF -> reads 1937uF
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