Re: Dreambox 500s no power on
i have it yet...but no help...
joeh
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Last Activity: 11-25-2021, 05:45 AM
Joined: 07-27-2011
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Re: Dreambox 500s no power on
update on regulator 5v i have in output 3,7v and on 3,3v i have 0 vLeave a comment:
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Re: Dreambox 500s no power on
no schematic matching.....Leave a comment:
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Re: Dreambox 500s no power on
UPDATE:
By checking the voltage on both 3.3V and 5V regulators displayed in the picture, I read about 0 volt, then i think that the problem is here, then currently on the board and the regulators I have the 12v only, but missing the other two voltages +3.3v and 5v. I tried to replace both regulators, but the result does not change .... suggestions ???Leave a comment:
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Re: Dreambox 500s no power on
@RJ... on two regulators:
+5v ..... present about 4.9v
+3.3v....NOT PRESENTLeave a comment:
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Re: Dreambox 500s no power on
12v present on c422Leave a comment:
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Re: Dreambox 500s no power on
adaptor is ok and the L404 e L405 are okLeave a comment:
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Dreambox 500s no power on
Hello everyone, I'm struggling with the repair of a dm500s on which he smoked the D46 component which is basically the diode screen printed with 1N4000 GW immediately behind the power connector but after replacing the decoder does not give any sign of life, what I could check why the rest SEEMS everything in order, no other component burned.
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Re: BENQ FP7G+ black screen with green led
The fuse i ok, the cap is 450vLeave a comment:
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BENQ FP7G+ black screen with green led
hI friends I have a problem with my monitor benq FP71G +. The problem is that power can not display anything on the screen (totally black screen) and the green light remains fixed even after several minutes, the same as if I remove the vga cable between the monitor and PC, after a while it becomes orange as it should be in case of no signal.
Opening the monitor, the power supply board is as follows 48.L1C02.A13
HELP...Last edited by joeh; 08-14-2013, 03:13 AM. -
Re: Acer al1511 no video after power on
there is the boards photos...Leave a comment:
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Acer al1511 no video after power on
Hi guys, my acer al1511 have this problem, after the power on ad the acer logo, the monitor showing autoadjust, but the display stay black with lights on...
No grafical item showed, nothing only backlight on and display black.
Anyone can help me???
Thanks sorry for my bad english. -
Re: LG Flatron W1934S, 2 sec to black
pin 7 and pin 8 are the secondary of inverter transformer, and i read on its with tester in diode mode 0.609, 0.620. If one of t501 or t502 are faulty the tester beep with any value or 1.000.Leave a comment:
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Re: LG Flatron W1934S, 2 sec to black
no i don't have it.Leave a comment:
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LG Flatron W1934S, 2 sec to black
I guys ihave this monitor, and it come black after 2/3 seconds powered or vga cable plug in.
I have test all caps on power board andits are ok.
i have test twice inverter pin 8-7 t501/t502 all are good no sound with digital tester.
What can i do???
Thanks
...Last edited by joeh; 04-19-2012, 12:15 PM. -
Re: Philips 190S LCD power problem
Thanks Bill, today i have replaced the faulty inverter with the new one and the monitor now lives again.Leave a comment:
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Re: Philips 190S LCD power problem
THIS IS THE TRANSFORMER cod. IT-E19-NB4004B
tested side with 2 pin...Leave a comment:
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Re: Philips 190S LCD power problem
scuse me bill i test it in ohm and the digital tester says "1. " this is a bad functionality?Leave a comment:
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Re: Philips 190S LCD power problem
it says 0 ohm
i beleave that it's dead can you confirm?Leave a comment:
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Re: Philips 190S LCD power problem
How can i test it?
what type of replacement can i sell'
thanks...Leave a comment:
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