Re: BUSH LED32134HDCNTD no picture
If it was short, how could you measure the cap?
Ha(d)ve the same problem. The 3rd was short. Used a 10nf 50V cap.
Backlight goes on and then the TV shows strips (brighter and brighter).
Before i changed the short cap, only the backlight works (without strips).
Anyone an idea?
MrSnow
Member
Last Activity: 06-04-2021, 12:01 PM
Joined: 01-25-2017
Location: Amsterdam
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Re: BUSH LED32134HDCNTD no picture
9.23nf???? Sure?Leave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
The usb drive wont identified. I have tried this one: [url]http://www.vesteldriver.com/TV_MB82_CORE_UPDATE.html[/url]
The mainboard has a thermal problem.
If i use a hair dryer, then flashs the usb drive and the backlight.
What must be considered when buying a used mainboard?Re: 17IPS19-5 LED TV does not start ... The mainboardLeave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
Hello again.
Sorry for the late answer. I bought a new power supply.
The Problem still exists.
So the mainboard will have a problem.
Can I still do anything here? I can´t install a new Software via usb.Leave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
Thank you, I do not know how to continue. Does anyone else have an idea?Leave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
Hi! Thank you for reading and for your answer.
I can´t turn the TV on or off. As soon as I turn on the powerswitch, it starts flashing.
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I forgot:
In the state after plugging in the mains switch, pin 17 is supplied with 3.3 V....Last edited by MrSnow; 01-27-2017, 03:34 PM.Leave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
Hmmm...
Cant find R503. DOH
The Service Manual is a little bit different....Last edited by MrSnow; 01-27-2017, 03:14 PM.Leave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
Pin 15 0V. There is only standby (or no standby), the TV dont responds if i try to switch on or off.
I can only turn on the mains plug. Then he flashes, reacts to no buttons. Switching off is also possible only via the mains plug....Last edited by MrSnow; 01-27-2017, 02:49 PM.Leave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
I don´t know how I have to check this.
Only if the mainboard is not connected the 24v drops to 0 V.
Backlight driver problem = MP3394?
The LEDs work with a laboratory power supply
I had written. Is this sufficient?
THANK YOU VERY MUCH!
Thank you...Last edited by MrSnow; 01-27-2017, 02:43 PM.Leave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
Circuit only D506
Anode: 24V, Cathode 23,6V
D207, D206: Cathode 24V, Anode -3,0V
D318-320: Cathode 12,2V, Anode -0,5VLast edited by MrSnow; 01-27-2017, 02:33 PM.Leave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
SteadyLeave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
D318,319,320 I had already soldered. All OK.
The resistors have to solder, too?
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What about the LED driver IC (3394)? At the background connection the voltage is missingLast edited by MrSnow; 01-27-2017, 02:17 PM.Leave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
Thank you. I'll check it in an hour.Leave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
Without Mainboard (i had to turn the power supply): 15,2V.
ThanksLast edited by MrSnow; 01-27-2017, 01:45 PM.Leave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
Hi!
D203: black anode, red cathode = Impermeable (or leaktight (dont know the english word))
D203: black cathode, red anode = 0,562 V
D206,D207: black anode, red cathode = leaktight
D206,D207: black cathode, red anode = 0,389 V
D506: black anode, red cathode = leaktight
D506: black cathode, red anode = 0,423 V
D318,D319,D320: black cathode, red anode = 0,213 V
D318,D319,D320: black anode, red cathode = 0,837 V...Last edited by MrSnow; 01-27-2017, 01:17 PM.Leave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
Hi,
C116 and C117 320V DC....Leave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
Hello, not yet.
What does smp meaning?
Mosfet? Q204? How do I measure it?
Sorry, but I'm not a pro :-)
ThanksLeave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
Hello, without mainboard:
The three 12V diodes: 12V
The three 24V diodes start at 24V and then sink slowly to 0V.Leave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
Hi again,
another Idea?Leave a comment:
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Re: 17IPS19-5 LED TV does not start (Flashing Standby)
Hello, I watched the Video and downloaded the core Update already. The TV does not respond at the USB Flash.Leave a comment:
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