A sports bar/restaurant with ~40 Samsung Plasma TVs. This is the 2nd TV that has a blinking standby LED. I'd like to learn how to repair these TVs because I'd guess that over time more and more of them will develop this symptom. My hope is to repair the bad PCB, however if that's not realistic then I'd replace the bad PCB.
Model PN60F5300AF, Type PN60F5300, Model Code PN60F5300AFXZA
Upon applying power, the red standby is steady. When I tap the power button, the standby LED immediately blinks twice, then it blinks once ~ every 4 secs. Also, Upon applying power, the MB's green LED is off; when I tap the power button it immediately flashes twice (one short, one longer), then briefly blinks about once every 3 secs. No video is seen.
Panel Info: Model S60fh-yb01, Date 2013-07-02, Vs 208, Va 57, Vsc -192, Ve 108.
PCBs:
PS: PSPF 3715003
Main Board: BN41-01965
X buffers: 60FF_XM & 60FF_XB
Y Sustain: 60FF_YM
Y Buffers: 60FF_YB_UP & 60FF_YB_LOW
Actual panel voltages:
VS 208V (for a few seconds, then drops off)
VA 57V (for a few seconds, then drops off)
VE 10V ... 8V ... 11.4V
VSC -2V (for a few seconds, then drops off)
It looks like VE & VSC are powered off of VS so maybe it's expected that they are nearly non-existent.
PS CON1
STBY 5.2V in standby, same after tapping power button
PS-ON 3.3V in standby, 0.0V after tapping power button
VS-ON 0.0V in standby, 3.2V after ~1 sec from tapping power button
VS-CON 0.0V in standby, 1.5V after ~1 sec from tapping power button
15V pins are 15.5V, 5.3V pins are 5.23V
Pics are in my GDrive. https://drive.google.com/drive/folde...EX?usp=sharing
FYI, this is my first post. Let me know if I'm doing it wrong.
Model PN60F5300AF, Type PN60F5300, Model Code PN60F5300AFXZA
Upon applying power, the red standby is steady. When I tap the power button, the standby LED immediately blinks twice, then it blinks once ~ every 4 secs. Also, Upon applying power, the MB's green LED is off; when I tap the power button it immediately flashes twice (one short, one longer), then briefly blinks about once every 3 secs. No video is seen.
Panel Info: Model S60fh-yb01, Date 2013-07-02, Vs 208, Va 57, Vsc -192, Ve 108.
PCBs:
PS: PSPF 3715003
Main Board: BN41-01965
X buffers: 60FF_XM & 60FF_XB
Y Sustain: 60FF_YM
Y Buffers: 60FF_YB_UP & 60FF_YB_LOW
Actual panel voltages:
VS 208V (for a few seconds, then drops off)
VA 57V (for a few seconds, then drops off)
VE 10V ... 8V ... 11.4V
VSC -2V (for a few seconds, then drops off)
It looks like VE & VSC are powered off of VS so maybe it's expected that they are nearly non-existent.
PS CON1
STBY 5.2V in standby, same after tapping power button
PS-ON 3.3V in standby, 0.0V after tapping power button
VS-ON 0.0V in standby, 3.2V after ~1 sec from tapping power button
VS-CON 0.0V in standby, 1.5V after ~1 sec from tapping power button
15V pins are 15.5V, 5.3V pins are 5.23V
Pics are in my GDrive. https://drive.google.com/drive/folde...EX?usp=sharing
FYI, this is my first post. Let me know if I'm doing it wrong.
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