Re: LG 22EN43T not start
Good suggestion, but no result.
I add a capacitor and makes no difference...
Maxmad
Senior Member
Last Activity: 11-26-2024, 07:42 AM
Joined: 07-13-2013
Location: Hellas
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Re: LG 22EN43T not start
Thanks for your replay frica.
Unfortunately this is not a bulgy capacitor problem.
Maybe this has to do with cold soldering.
Today after keep pressing the power button the monitor powered on. Once it starts it's ok.
I am trying to find the start up procedure in order to isolate the problem.Leave a comment:
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Re: LG 22EN43T not start
I upload a picture of my board.
C154 was checked, both capacitance and ESR are good.
This in not a backlight issue. There is no picture at all.
Monitor's power led is blinking. When was working the led was light steady.
Seems that the monitor "is not starting"....Leave a comment:
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LG 22EN43T not start
This monitor had problems turning on from time to time. Pressing on-off button made power led to blink with no picture.
After some tries ,once it started, there was no problem. Working perfectly.
Now, there is no way to turn it on after several tries.
The whole board is an eax65118801. I attach the schematic.
All voltages are fine , 5VS from IC102 and both 3.3VS and 1.2VS from IC103 are OK.
There is no voltage drop except from 0.5V on R100 when on-off button is pressed.
I checked 2 big SMD electrolytic caps, and... -
Re: LG 42PJ350. usual 3 clicks problem
In this TV, i checked everything is advised; resistors, diode etc.
The problem was one of the relays , although you can hear it clicking, no connection was made.
So i fixed the relays and now the PSU is working great testing with 2 bulbs 100w method.
So everyone has this problem should also take a look at the relays.
However, in my case the Y-SYS board have also many transistors shorted.
Still looking for fix.Leave a comment:
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Re: CQ61 no boot- Charge led off after seconds
bios already flashed...
Used this file in this post:
[url]https://www.badcaps.net/forum/showpost.php?p=690169&postcount=9[/url]
I desolder the chip to verify again with the programmer.
After all these tests, it seems ok. Verify passes 100%
What's the voltage in BATCHG when the battery is plugged in ?Re: CQ61 no boot- Charge led off aft...tcount=9[/url]Leave a comment:
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Re: CQ61 no boot- Charge led off after seconds
No this model is the one with intel cpu.
A lot of issues sure but trying for the bestLeave a comment:
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CQ61 no boot- Charge led off after seconds
Hello,
One more thread for this board. Seeking a lot old threads. No help.
Bios already flashed with no result.
Board shut off almost immediately after button pressed.
When charger is plugged in the charge led is on for some seconds and then off.
checked +3V_ALW +5V_ALW +12V_ALW all seems ok.
Also immediately after button pressed checked the other voltages and seems to work before shut down.
Only on PL7 there is no voltage. I can measure the battery's voltage when it is plugged in , but no increase when power... -
Re: Toshiba 32W1343DG No Backlights, Flashlight Test OK, TV is already broken
still how this think works confuses me...
I used only a 82 ohm resistor 1 watt and it burned at once!
I used a 47 ohm resistor, still hot and no dimming!
i used a 22 Ohm resistor and it is warm and dimming not working so good...
supposed that the biggest the resistor the less the current...
Driver led and pwm too confused...Leave a comment:
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Re: Toshiba 32W1343DG No Backlights, Flashlight Test OK, TV is already broken
hard to find them as single leds without strip glass...
probably i will use the 5050 with a parallel resistor...Leave a comment:
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Re: Toshiba 32W1343DG No Backlights, Flashlight Test OK, TV is already broken
I replaced a dead led with a 5050 SMD (think 0.5w from a led strip) and only lasts about 3 minutes!
What kind of led uses? Are they so powerful??Leave a comment:
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Re: Toshiba 32W1343DG No Backlights, Flashlight Test OK, TV is already broken
why the leds drain so much current, about 300mA at the start of the TV?
After few seconds the current drain drops to about 30-40mA.Leave a comment:
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Re: Philips 221TE4L flashing screen
The correct schematic for the logic board is from Chassis TPM8.2E (Second attached 10.43MB).
May the U409 have the same problems? (page 52)Leave a comment:
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Re: Philips 221TE4L flashing screen
Also... the tv doesn't start neither with the on/off button nor with IR remote...
It starts only when you plug it with the ac cable.
on/off button uses signal ADIN2_SRV (page 52) which goes directly to MT5366 (pin 145 - page 51).
Does MT5366 uses this signal to produce OPWRSB for power on? (page 49)
OPWRSB must be low.
There is no change when tv is in standby mode and the on/off button is pressed...Leave a comment:
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Re: Philips 221TE4L flashing screen
there is a mess with the schematics...
The TV model is 221TE4L however the correct PCB layout is on page 48 for 231TE4L...
So there is no IC904, but instead there is the IC801... not easy to find some datasheet for it...Leave a comment:
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Re: Philips 221TE4L flashing screen
this voltage on pin 10 is between 0.6v and 1.7v when the panel lights.Leave a comment:
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Philips 221TE4L flashing screen
Hello to the forum,
Facing a flashing panel problem with this Philips model.
Here is a video of it:
[url]https://sendvid.com/3999k0f3[/url]
The TV seems to startup normally showing the boot logo but after that it started to flashing for some seconds until turns to total black.
Found the schematics for PS and main board on 2 different chassis.
I have already tested some voltages. Power supply board seems to works fine as it lights the panel with an external voltage to the ACT/EN pin.
About... -
Re: wenku.baidu manuals and hack
thank you!Leave a comment:
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Re: wenku.baidu manuals and hack
seems that this methods no longer works...
can anybody helps to download this file?
[url]http://wenku.baidu.com/view/b700ad10cf84b9d528ea7a76.html[/url]
i can't find a solution either with translation...Re: wenku.baidu manuals and hack<br ...translation...Re: wenku.baidu manualsLeave a comment:
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Re: Philips 37PFL9604H T-Con issue?
the screen changes, but it doesnt clear...
Vertical lines at half screen appeared and disappeared but the other half still is red tinting with ghost effect...Leave a comment:
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