Question about ViewSonic N3752w 37 in. LCD TV

1 Answer

No sound and no picture.Power comes on with red light changes to green. Replace caps (15) on power supply.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 11,361 Answers

You need to check and see if all the control voltages (Power supply on) and DC output voltages are present. PS pin out: http://www.fspgroupusa.com/download/specs/FSP271-5F01_DIA.pdf

Please read my guide to see how LCD TV works.
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.

Posted on Mar 17, 2011

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

JVC LT40A320 turns on but no picture. Replaced Power Supply & Backlight Inverter (TV was hit by a lightning surge, would not do anything at first) now the green light comes on but no picture or sound.


Since your TV was struck by lighting, the power supply is the first board that gets affected by the sudden change in AC power.. The main board is the next board due to the fragile components and the excess of voltage that is supplied to it when the lighting happened. Since you have replaced the power supply already.. I would suggest to replace the main board and that should restore the functionality on your TV.

Sep 04, 2015 | JVC Televison & Video

1 Answer

TV won't turn on


it is maybe power supply is damage,please check the fuse of power supply,if it is fuse is damage,you can change it.if fuse is ok,you can change power supply boards.when you find which boards is defective,you can search by pcb number on www.wisiny.com

Jun 05, 2013 | Craig CLC501 15 in. TV

1 Answer

Green light switches to red light when u turn tv on no pictures


the electrolytic caps need replace on the power supply module, or the power supply need replace,Go to www.partstore.com to purchase a new power supply.

Sep 16, 2011 | Televison & Video

3 Answers

Tda9380ps /n3/3/1664 using in sharp tv power supply ok ,but no EHT ,the power LED are glowing red light press program key to change green light to return in few miniutes to standby in red light position...


tda9380ps /n3/3/1664 using in sharp tv power supply ok ,but no EHT ,the power LED are glowing red light press program key to change green light to return in few miniutes to standby in red light

Aug 30, 2011 | Sharp 21" Multi System Stereo TV

1 Answer

No picture or sound, stand by light comes on in blue not the standard red or green any ideas?


power supply board needs new caps,.....or replace the board...........
cheers

Apr 10, 2011 | Televison & Video

1 Answer

Spetroniq 42"lcd screens black no picture no


Sounds like maybe power supply, but I would check with flashlight 2 in from screen when the green light comes on to see if you have a picture, if so then you have a bad inverter board, if not then power supply problems. You can look for bad or bulged caps in PS

Jan 06, 2011 | Spectroniq PLTV-42HW68 42 in. LCD TV

1 Answer

No Picture & No sound. Red LED, Green LED, Red LED.


If the power supply outputs are good! Then I would say the back light inverter is bad! If the screen stays black and does not come on.

Jan 14, 2009 | Akai LCT2660 26 in. HD-Ready LCD...

1 Answer

Ilo 27" lcd tv


If your LCD has a defective power supply module will cause the following symptoms:
No Display and no Sound, Then Power indicate light changes from Green to Red.

Apr 29, 2008 | iLO LCT32HA36 Television

Not finding what you are looking for?

Open Questions:

See all ViewSonic N3752w 37 in. LCD TV Questions

ViewSonic N3752w 37 in. LCD TV Logo

475 people viewed this question

Ask a Question

Usually answered in minutes!

Top ViewSonic Televison & Video Experts

Cindy Wells

Level 3 Expert

5052 Answers

The Knight
The Knight

Level 3 Expert

73611 Answers

Jaime Hernandez

Level 3 Expert

2315 Answers

Are you a ViewSonic Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...