Question about Proview PL913S 19" Flat Panel LCD Monitor

2 Answers

Popped IC inside power supply board, what is it?

I can see a small 8 pin Surface mount IC, I think it is an N-FET but I cant look up the number on it for a replacement. the numbers on it are 4606 (maybe date code) and under that is BD5B2R. this thing is tiny so the B might be an 8 and the D might be an 0. The P/S has 4 of these and it has 4 CCFL. One ends in Z. Any idea what they are or where I can look up the number? the manufacturer symbol looks like an A with a circle around it and the right leg of the A goes down through the circle, almost like a 4 with a circle around it. I have been looking for days on the internet for anything that resembles it and found this from TI, UCC3837. Looks just like it. These monitors are the same fron SONY and viewsonic. Thanks for any help.

Posted by on

  • 2 more comments 
  • Steven Wander
    Steven Wander Apr 08, 2008

    Mark, You da MAN! If this is the critter I need, Ill be stoked! What part of my sad description led you to this particular chip? So its P-FET, are they somewhat generic or is their a cross reference to my particular burned chip?



    Pter....I know they are small, but I know a guy....thatll do it for me, solder wick the existing solder off, put some water soluable paste on across the pads and lay the chip on, put in a toaster oven preheat board at 200 for 4 minutes, heat up to 325 for 2 minutes and then 450 for 30 seconds or until the solder beads up on the pads. then turn off oven and let cool. The solder beads up on the pads while leaving the untraced board, its really cool. You can solder a whole line of microtraces wiht one long bead that seperates onto the pads by itself. he turned me onto this from this website. http://www.seattlerobotics.org/encoder/2...

  • Steven Wander
    Steven Wander Apr 08, 2008

    Mark, this is actually what I needed, but you sure pointed me in the right direction

    http://pdf1.alldatasheet.com/datasheet-p...



    4606

    built 12/05



    now to find a seller that wants to sell 1. thanks again FIXYA!

  • B Joan Rapier
    B Joan Rapier May 11, 2010

    Good grief! One of the words in the last line in the 1st paragraph of my post got censored by Fixya. The words following "..., solder wick (or s-u-c-k-e-r)..." OK, now let's see if the censor flags that version as well. :O




  • B Joan Rapier
    B Joan Rapier May 11, 2010

    Hi pishta68,



    Do you know how to solder a surface mount IC on a board? Is it a "flat pac" (leads fanning out the sides)? If so, it can be really sticky business installing one of these critters. I'm certified in micro-miniature board repair and I can attest, even for a pro, it's a feat to do it properly. Then there's the issue of having the proper equipment (soldering gun lead tips, heat sink clips, solder wick (or ******), etc.)



    Most often, component-level repair is not done anymore. Instead, devices and equipment are repaired by replacing sub-assemblies that have failed.



    Is there any chance you can R&R (remove and replace) the board instead?



    ***************
    Please, post back w/ your answers

    and any other info. you can provide

    (the more details you can provide the

    better) and we'll see if we can get this

    issue resolved or at least diagnosed

    for you.



    Thank you
    BJ
    ***************

×

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 202 Answers

Nice job Mark_Webber...!

BJ

Posted on Apr 09, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 472 Answers

What you are after is an AO4411
It can be found at http://pdf1.alldatasheet.com/datasheet-pdf/view/136100/AOSMD/AO4411.html

That should get you through the day =)

Posted on Apr 08, 2008

  • Peter Thompson
    Peter Thompson Apr 09, 2008

    Ah all in a days work =)

    I use the hot air de-soldering/rework station myself, though that is not for the inexperienced. These are basicaly like the heat guns you use to strip paint, but in a more usable form.

    You can for the record use a heat gun, on the low setting.. But I cannot advise enough how hot these get, how dangerous they can be, and last but not least how important having old circuit boards to practice on.

    DO NOT USE ANYWHERE CHILDREN CAN GET AT THEM. IT WILL REMAIN EXTREMELY HOT FOR A LONG TIME AFTER IT IS OFF AND WILL GOTO 3RD DEGREE BURNS IN A SPLIT SECOND.



    For the desktop model I use....

    Type hot air desoldering station into your favorite search engine.

    These are not the cheapest tool to have, but they save alot of time and mess.

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Panasonic tc-p42x5 powersupply no power


No standby power on these sets after a power loss is usually a bad IC at location U203 on the back of the power supply board. It's a Fairchild FAN6755 8-pin surface mount IC... A cheap, easy fix if you have basic soldering skills...

Dec 21, 2012 | Panasonic VIERA Televison & Video

1 Answer

Where do I find the 8 pin IC number


Hello
"D" power board is nothing, but its power regulator board itself. I think you are not handy to do the work with power regulator baords. It is dangerous to handle power boards to any TV without proper experience.

Mar 01, 2012 | Sony FD Trinitron WEGA KV-32HS510 32" TV

1 Answer

Pmp3000 problem power supply.ic circuit problem.number series ic circiut..


I have a PMP5000 that I had to resurect. I had to trace out the power supply to repair it.

I can give you hint: First, a small supply runs directely from the line and generates some of the small voltages. While this starts, the main power caps are charged through limiting resistors. The main switcher is brought online and if the power amps acheive balance, then a relay connects the speakers and shorts the limiting resistors.

This is what is in the 5000 and I suspect the 3000 is similar.

In my 5000, there was arcing at one side of the power amps. The board was burned and three power fets fried. Cancer of burned board had to be carved out and traces replaced by hardwiring.
In addition, the limiting resistors were blown open, both main switching transistors were blown and 4 small driver transistors (surface mounted) and several diodes AND a switching regulator chip (surface mounted).all fried/

Hint: When restarting the unit, put a 150 watt light in series with one of side of the power input to limit the current in case you did not get all the dead bodies out.

This is a class "D" amp which drives PCM waves into a filter which is then the audio output. It is much more efficient thaan a linear amp.

Dec 24, 2009 | Behringer Pmp3000 16 Channel Audio Mixer

5 Answers

Fan wont turn on infocus x2, instead makes funny siren noise and attempts to turn. Small fan inside works fine, larger one cant but will turn if touched, so doesn't seem to be anything in the way of it.


This problem is almost never the actual fan itself failing..
The intermittent whine you hear is the result of the Mos-Fet fan driver chip which is the speed control current amplifier.
It's an 8 pin surface mount chip on the bottom of the main (lower) circuit board. This is a common failure with these projectors.
The chip is inexpensive and needs to be replaced by someone who is skilled in surface mount component technology. You can replace the fan but you will still have the same problem. Hint, the bad chip is not the one closest to the large fan connector... It's the one closest to the small fan connector and it will measure 45-60 ohm's between pins 7 and 8. the part (rns70d) is discontinued however there is a replacement that can be purchased at...

Sep 13, 2009 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

The picture on my Vizio 42" flat screen suddenly shifted to a whitish pale color with ghostly looking images that look like negative film.


This is the fix for the Main board repair :
Locate IC 32 small 8 pin surface mount near top of Main Board and remove. Short pin 2 to pin 5. (pin 5 through 8 are together and pin 2 and 4 are together)
You will need a good TV Tech to do this for you.

Aug 04, 2009 | Vizio VO42L 42 in. LCD TV

1 Answer

Viewsonic VP211b No Power


I have fixed several of these.
The most common fail on the Viewsonic VP211b is a blown fuse on the inverter board. Check fuses F1 and F2. These are Fast Blow 2.0 Amp surface mounted fuses, case style 1208. Available at Newark Electronics, part number 64R8010. They are located on either side of connector CN1.

viewsonic-vp211b-no-power-0r4mioey1rjkalfz5jos2omp-2-0.jpg

Jan 15, 2009 | ViewSonic VP211b 21.3" LCD Monitor

2 Answers

Dead no power


hi change ic surface mounted u405 on back of signal board

Nov 17, 2008 | Norcent Technologies LT-2725 27 in. LCD...

1 Answer

Will not turn on, only blinking green light


Ok, your on the right track... Check the main fet or fets that is located right by the caps. Normally if the fet is short, it will pop the fuse, but if your caps poped instead, it could have prevented this. With the set unplugged, you can take a meter set to ohms (lowest setting possible) and if you read a value across any of the 3 pins on the fet (short), then it shot.. If that checks out ok, then take a peek at all the other smaller caps that are on the hot side of the board (the bottom of the board will be labled hot and cold. If one of these was out, it would prevent any of the other voltages from being present. The 5v is a standard test signal, it will normally notify the rest of board to power up when there is a draw on it (kind of like a computer power supply). But I highly recommend replacing all the caps on the hot side of the board and it should fix your problems.

Apr 06, 2008 | Akai PDP4294 42 in. EDTV-Ready Plasma...

5 Answers

Vizio P42HDTV Power on Diagnosis


Relays are the first big clue, triggered by the 5 & 12v supply you should be able to trace back using a dmm and see if you have both of those voltages present... The lead coming from the smps to the y-sus board is a good start. On a Vizio I believe the voltages are listed per pin right on the board...
If you had any kind of relay sound then you could suspect the y-sustain or z-sustain board or something else. With the relays being silent I'd strongly suspect the power supply.
Bill

Apr 06, 2008 | Vizio P2 42 in. HD-Ready Plasma Television

1 Answer

Not booting


check ur mother board power supply check the FET check all the power lines from the smpswith respective of ground with any line short check which component is primerly conected to that line replace it check the FET power IC etc

Nov 29, 2007 | Intel Motherboard

Not finding what you are looking for?
Proview PL913S 19" Flat Panel LCD Monitor Logo

756 people viewed this question

Ask a Question

Usually answered in minutes!

Top Proview Computers & Internet Experts

Diego Zenizo
Diego Zenizo

Level 1 Expert

22 Answers

Brad Brown

Level 3 Expert

15109 Answers

ka4iup
ka4iup

Level 3 Expert

3957 Answers

Are you a Proview Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...