Question about BenQ T701 TFT 17" LCD Monitor

1 Answer

I have a benq t701 with power problems

I have a benq t701 there is power to the transformer circuits but there is no power led on and there sounds like a chirp every second from somewhere near the middle bottom of the power board

Posted by on

1 Answer

  • 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
  • 952 Answers

Faulty power board... possibly caused by blown capacitors..

Posted on Jul 03, 2009

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

BenQ Q24W5 LCD monitor circuit diagram


HI.............


Repairing BenQ 17′ LCD Monitor

benqlcd.jpg
I came across a common fault problem in BenQ 17′ LCD Monitor. The problem is have power but no display. Once you has opened the LCD cover, check the pico fuse for open circuit (very common), the push pull transistors C5707 for short circuit and the Buck royer circuit p-channel fet FQU11P06 also for short circuit too. For your information, if you can't get the FQU11p06 you can always use FU9024N as a replacement. Resolder all the high voltage transformer pins and replace the components above and I'm sure you will bring back the life of this BenQ 17′ LCD Monitor.
You may go to this fairchild semiconductor website to download the spec of the FQU11P06 P-channel FET.

http://www.fairchildsemi.com/ds/FQ/FQU11P06.pdf


GOOD LUCK.............

Sep 23, 2011 | Computers & Internet

1 Answer

After start monitors works 15-30 sec, and write Nonpreset Mode! and torn off. Green led lamps light normal.


Replace bad electrolytic caps on power supply module,or just replace power supply, that should fix your problem.

Jan 17, 2011 | BenQ T701 TFT 17" LCD Monitor

1 Answer

I brought my benq t701 to a repair shop to due blackout screen. But due to lack of parts, it was not repaired but all 6 transistors were removed from the PCB. Please show me where these transistors were...


go to esservice.com and get the manual from there will be easier as the transistors are directional i believe they are 2sc5707s from memory but you will need to check the transformers and the 2 filter caps on either side of them as if they are faulty will blow transistors.

Dec 30, 2009 | BenQ T701 TFT 17" LCD Monitor

1 Answer

Can't find video signal


If screen says "Signal cable not connected " all the time till power led switches to Amber chances are monitor is ok and problem is with graphic card or cpu.Connect to Known working CPU and confirm that monitor is the problem.
If same problem persists on another working cpu after changing signal cable,the interface board in the monitor could be defective.
Samir

PLease rate solution and provide feedback.

Jun 09, 2008 | BenQ FP731 17" LCD Monitor

1 Answer

BenQ FP767 17" LCD Monitor Problem - Power LED Blinks


Look for small power transistors 2SC5707 near yellow invertor transformers which go to backlight connectors.
But if problem is blinking power LED powersupply capacitors maybe an issue,check visualy and/or replacement.
Also fuse that maybe blown is not glass fuse near mains socket,It is semiconductor black or yellow colour labeled PFxxx near heatsinks of power supply secondary.

Please rate the solution and provide feedback.

Samir

May 25, 2008 | BenQ FP767 17" LCD Monitor

2 Answers

Benq screen shuts down when pc is plugged in


If it's a 71g and not 71g+ resolder transistors 2sc5707 on invertor board along with grey condensers and inverter transformer.This should solve the problem if it was display shutting off with power led remaining on.Otherwise check power section.

Feb 24, 2008 | BenQ FP71G 17" LCD Monitor

2 Answers

Monitor


Hi Abadir, It really sounds like your back light has bit the dust. I can't always see stuff on the LCDwhen the back light is out. Check in with LCDrepair.net for parts, and repair of your monitor. I truly hope this helps. Good luck.

Oct 09, 2007 | BenQ T701 TFT 17" LCD Monitor

1 Answer

Power ok but No Display


see this one
http://www.fixya.com/support/t155971-benq_t701_lcd_monitor

Sep 16, 2007 | BenQ T701 TFT 17" LCD Monitor

5 Answers

Benq T701 LCD monitor


I had a similar problem: the backlight on my Benq T701 only functioned for a couple of seconds every time a turned the monitor on and then the backlight switched off (sometimes in two stages). An electronics guru at work said with those symptoms the transistors rarely were the problem and I just needed to resolder the connections of the high voltage coils onto the PCB. On visual inspection those solder connections seemed ok, but when I tried to reflow the existing solder at one connection I spotted the problem: just a thin surface layer of solder was present and I had to add solder to fix the problem. The 4 coils each have 6 leads on one side and 2 on the other. I only soldered the connections on the side with 2 leads. In just 30 minutes and without buying parts the monitor is now up and running again.

Jun 23, 2007 | BenQ T701 TFT 17" LCD Monitor

1 Answer

Benq t701 flat screen no display


see this post
http://www.fixya.com/support/t155971-benq_t701_lcd_monitor

Apr 15, 2007 | BenQ T701 TFT 17" LCD Monitor

Not finding what you are looking for?
BenQ T701 TFT 17" LCD Monitor Logo

Related Topics:

355 people viewed this question

Ask a Question

Usually answered in minutes!

Top BenQ Computers & Internet Experts

Tony

Level 3 Expert

2600 Answers

Tommmix

Level 1 Expert

5 Answers

Computer Links

Level 3 Expert

2385 Answers

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

Answer questions

Manuals & User Guides

Loading...