good evening. I have this basic tv, with an all-in-one board. This tv has a common fault in the primary power area. the tv did not turn on. I bought a repair kit. I have installed all the parts of the kit, but now the tv turns on the standby light intermittently but does not start. the flashing is very fast. What can be? Does anyone know the model? Thank you
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Re: Philips 43pft4112/12 blinking standby
I attach the schematic of the source, in case someone can guide me. a greeting -
Re: Philips 43pft4112/12 blinking standby
What parts did you change and which parts were bad? How can we guess what kit you bought?Comment
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Re: Philips 43pft4112/12 blinking standby
Sorry, I put everything I changed.
R9101 out
U9101 I Don't Know
C9103 out
D9102 out
D9104 out
Q9101 out
7 smd resistors R9103, R9104, R9106, R9107, R9108, R9109, R9110 something ok
4 smd C9108, C9109, C9110, C9111 ??? I Don't know
F9901 okComment
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Re: Philips 43pft4112/12 blinking standby
good evening! to see if someone can help me. after replacing all these components, the tv already has a standby light, but that light is intermittent and does not respond to the power button. the voltage on the main filter is unstable, between 1xx-3xx. the voltages in the secondary are also unstable. the 22v is 17.8v and a bit unstable and the 12v is very unstable and goes from 0 to 8v. There is a loss of 4v. Could anyone help me? Do you need any measurement?Comment
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Re: Philips 43pft4112/12 blinking standby
Hi! Did you resolve the issue? I have the same problem: unstable voltages, blinking standby LED.Comment
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I need to post this, maybe someone will find this helpful. The TV is working now. In my case the R9101 was the problem because of me. I made a mistake ordering 22Ω resistor instead of 0.22Ω.Comment
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Hello,
I have a problem with this TV, the standby voltage is not present. I have checked the components around the IC fsq510's area and they seem to work, also replaced this IC but the problem persists.
These are the voltages in some pins of IC fsq510:
Vcc=18v
D=320v
Vstr=154v
Unfortunately, I couldn't find the schematic
What else could I check?
Is it possible to provide standby voltage from an external source to allow the TV to turn on?
Thank you... -
picked up a tv and when the power is plugged, the standby light flashes real quick then goes off. of 3.3, 12, 24v is all there but i couldnt find any 5v on the back-end board. ON/OFF is low, which it seems is what turns on the backlight so i removed the wire at the back-end board and put a 10k resistor to the 3.3v, which when plugged in brings on the backlight for a split second and also a blue light "LED1" on the inverter board, which goes off after a short time.
am i missing something to bring on the backlight or is the inverter/ccfl gone bad? would that cause the inverter board...12-01-2023, 09:55 PM -
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... -
I am working on a QN750Q8FNBFXZA. Dead except the standby light. It blinks what appears to be 1 3 1 2. 1 long blink, pause, 3 short, pause, 1 long, pause, 2 short, pause, repeat. A service manual would be very helpful, or if anyone knows these error codes. Thanks! -
I have the above toshiba which worked on by another technician with blinking light on the caps lock dvd rom drive and the standby power upon insertion of the charger.
what i have done
cleaned the mb
used hot air
disassembled the board but the problem is same
anybody with similar problem which has been solved can assist
thanks04-13-2023, 12:04 AM
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