Re: xenius LCDX32WHD88 (B)
ive found a shorted diode d883 im hopeing that will be it
ive found a shorted diode d883 im hopeing that will be it
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Re: xenius LCDX32WHD88 (B)
Common fault on these, I had that problem too, it will give standby but no run power (24V measures ~4V.) Its for the audio amplifier.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: xenius LCDX32WHD88 (B)
Bit tricky to find as its in parell with d882 d883, had to remove one leg to test it.Comment
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Re: xenius LCDX32WHD88 (B)
That was it, 1 bad diode but I changed the two to make sure.
Works fine now.Comment
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Re: xenius LCDX32WHD88 (B)
Nice one, shorted diodes truly are the end of many Vestels - nice easy fix but crappy design!Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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There was a power surge at home from "direct" (no sound delay !!!) lightning strike. Popped a 15 amp breaker for ceiling lights (old knob and tube wiring - perfect antenna?) "Fried" garage door opener buttons and remote, KVM switch, Magic Jack, and a ceiling fan motor.
And my 55" 6 year old Hisense Black Friday Walmart TV.
There is no Red standby LED.
I was wondering how to "jumper" the board on to test voltages thinking the STB pin would be one of the pins.
However, I decided to measure voltages at all 10 pins... -
Hello guys,
I have a Philips 240B7QPJEB. The monitor seems completely dead.
I opened it and measured the voltages of the powersupply. I found that a mosfet was dead and replaced it.
On the connector, that goes to the TCON board, all voltages 15-19V and 5V are present.
The small connector on the left of the PSU has two cables with 18V and all the other have 0.2V. It connects on this small connector on the left ontop of the panel. I guess the backlight? Seens fine I guess.
The weird thing is, that the Power LED is powered over the TCON board.
On The TCON...12-28-2024, 02:12 PM -
Hello
I have power adaptor(220V/input, 12V 1.2A/output) which has symptom of fluctuating output DC voltage between 11.5V-12.2V.
So I opened its plastic case and when switched it on, I heard constant tik tik sound from inside its PCB.
I measured DC voltage between negative and positive pin of the largest capacitor(400v 10uf) and it was measured contant 300V.
I also measured ESR value of all capacitors and I noticed that one of capacitor(KMG 16v 470uf), which located in the secondary side, have high ESR value(10 ohm),So I replaced it with same specification NXH capacitor.... -
Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hello
I have a big problem and that is that in some cases when repairing active pfc power supplies I cannot work with a test lamp. I can only get help with 5 volts standby and for starting and starting I have to work without a lamp and this way there is a possibility of parts exploding and other parts being added.
Sometimes with a multimeter test the problems can be reduced to some extent, but I had several cases that had to be tested on and online and recently two varistors exploded. They had terrible resistance because the power supplies were over 800 watts.
Is there a way...
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