Philips 32PF5321D/37 and when turned on I get the green light for about 5 seconds then it turns to a red flashing twice then pause then twice and will do this until unplugged. I do not see any bulged caps or and damage from heat and my fuses are good. I do not see any markings for voltages on any of the connectors so I'm kind of stuck on where to go next since I have not seen a configuration like this before.. Any help is much appreciated!
Philips 32PF5321D/37 No pick or Backlight
Collapse
X
Related Topics
Collapse
-
by chesterccSo i'm trying to replace the LED's in a Philips TV. It's 42" with a 715g7262-p01-000-0010 backlight driver board based around an O2 Micro OZ9902CGN.
My issue is when I replace all the LED's on one board with the new 3V 300ma ones they immediately burn out when the set is powered again. I previously tried the same thing with 6V LED's and the backlight flickered for a bit but wouldn't start.
The original LED's which I removed which are still working start to melt and burn when given more than 3V on DCPS so I know they shouldn't be higher voltage ones.
... -
by ohrenI raised the question of whether PWM on the power board "dim" pin would be a reasonable assumption for controlling the backlight of a Philips TV (55put6101/12): https://www.badcaps.net/forum/troubl...d-tv-backlight. I didn't receive any insights there so I went ahead and tried it.
The setup is basically:
Rpi3 hardware PWM → 220 Ohm → NPN transistor → dim pin
Transistor is switching the 3.5 V supply on the power board.... -
by ovraxHello everyone,
First of all, please excuse me as I'm quite new to this field.
I have a Philips 55PUS6804/12 TV. It turns on and off instantly (backlight flash). I personally think it's a backlight issue (faulty LEDs). Could you help me confirm my diagnosis?
I've checked and the T-CON seems to be fine. I disconnected one ribbon cable at a time at the bottom, but the problem persists.
The Ambilight works perfectly and stays on.
No sounds.
Thanks in advance.5 Photos -
by triplefourthis tv is throwing me for a loop. do samsung tvs no longer have the backlight self test feature built into the power supply?
i tested the backlight with my LED tester and it lights up both strips. one of them reads 100v and the other reads 63.7v.
unplugged mainboard from power supply but left backlight plugged in, and then plugged psu wall power in. expected to see backlights light up but see nothing.
according to how ive diagnosed in the past, this would almost always be a bad power supply. replacement power supply was cheap like 20$ from ebay. but still i get not even... -
by DoOm86TV philips 55'' no backlight (image ok).
I tested the backlight with my led tester from the unplugged connector cable and it lights up. I had voltages at the motherboard connector, but anyway I order a new psu. Same problem, same voltages. Disassembled the TV and checked every strip with my led tester, they all light up, same voltage for every pair of strip (they go two by two).
What am I missing?
And something else I don't understand. I checked and I have 3v Leds, 10 per strips. Why every pair of strip (so 20 Led) take about 32v when powered up with my led tester 🤔2 Photos - Loading...
- No more items.
Comment