Question about Projection Televisions

1 Answer

Sony KP65WS500 5 blinks

I am still stuck with my TV. Sorry to bother you. But How can a fix that voltage G2 accurately on all 3 CRTs?
And, can the problem be related 1 of these 3 CRT lamps failing?
Thanks again!!!

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
  • 10,594 Answers

Hi,
1st set Brightness and Contrast settings to 50% at tv menu.
You need to cover 2 CRTs with any thing like thick paper while adjusting 3rd CRT.
For example, lets adjust Red CRT G2 volts, Select audio-video input 1 and cover green and blue lens with paper note-book and rotate Screen control up to level where you see retrace lines on projection screen, now decrease screen volts (G2) so retrace lines disappear and projection screen should be blank.
Now do same process with green and blue adjustment while other lenses should be covered.
Im not sure I conveyed it to you properly or not because English is not my 1st language.
Thank you.

Posted on Sep 23, 2008

  • Shahid Electronics
    Shahid Electronics Sep 23, 2008

    Technically if one of three CRTs produce inaccurate "cathode signal", total of "IK signal" will assume as bad or wrong and TV goes to respond as error.

  • Shahid Electronics
    Shahid Electronics Sep 23, 2008

    Do you have related tv service manual? please let me know.

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Rear proj TV picture keeps blinking out


comon sony problem Sony has and Ik circuit tha is suppose to not allow video in there is an uneven emission from the crts what you have on both sets the tube are getting so weak causing the circuit to kick in and out in other word you need crts inboth set and they are not avail new you can have them rebuild but the set will never look good again time to retire them

Dec 01, 2009 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer

When i press the power button the stand-by light blinks orange about 10 times and goes red again. and the tv never comes on


The blinking light describes the nature of the problem to the service technician. The error message varies from manufacturer to manufacturer and model to model, so more information is necessary to provide an accurate solution.

If this is a Sony Projection Television, (for ex the KP51WS620,) 10 blinks, pause, 10 blinks, etc. means "Hgih Voltage Protection" and the probable cause locations listed are as follows:

1. Q8014 or Q8013 have shorted replace along with R8051 on D board.
2. IC8005 is damaged (D board).
3. G2 is improperly adjusted.

These are starting points for a qualified service technician. I hope that helps.

Nov 24, 2009 | Projection Televisions

1 Answer

My sony kdf-42we655 has 7 flashing red blinks. please help.


Audio Protect (7 Flash): When DC voltage is detected at the speaker or
woofer outputs, IC3604/pin128 (TV-micro) goes low and IC3604 turns off
the main power (AC relay turns OFF).
Troubleshooting Tips:
1) Main cause of defective will be located on the KD-board
2) Confi rm KD-board is securely seated on the G2-board
3) Replace KD-board

Jun 14, 2009 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

Sony KP-53HS10 rear proj TV - picture goes on & off


If the adjustment of the screen settings does not fix your problem, its likely that one or more of the CRTs (picture tubes) is defective.

And, the CRTs for these sets are hard to find and expensive.

michtech

Jan 29, 2009 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Sony Trinitron WEGA won't turn on


6 blink error is either a power supply (g2 board) or a blown thermal fuse. if it came back on, its not the thermal fuse so you would need a new g2 board. if it blinks 5 times, you need a new ballast (lamp driver)

Dec 07, 2008 | Sony Grand WEGA KF50WE610 50" Rear...

1 Answer

Sony Screen keeps Blinking


If the red LED blinks 5 times you have a AKB error. It is caused by the CRTs trying to balance the color, and failing. Its an annoying problem that happens when the CRTs get old. If its just beginning you can balance or slightly turn up the screen voltage to the CRTs to remove the problem, if its in the end stages, the CRTs may need to be replaced. This is however, very expensive. If you are daring and safe around high voltage, pop off the speaker grille, open the front panel up and find the focus block. Don't poke around! those big red wires have 30,000 volts running through them! The focus block is a black square box with six knobs on it. Three are labeled screen, three labeled focus. You will see each row labeled R, G, B for red green and blue. The writing is tiny. Mark all three screen knobs with a colored marker so you know where they started. Then turn each one up slightly. If you have a picture, put it to a black screen or blank input. Turn each knob up just unit you see the color over drive and turn it back down to black. You want to set it just below retrace to maintain black level but drive the CRT fully. Setting this is hard but may fix an AKB issue.

Dec 02, 2008 | Sony KP-61S65 61" Rear Projection...

1 Answer

Sony KP-51WS510, standby led blinks 5 times


It sound like you have a bad picture tube...check your 1k circuit for correct voltage and wave form.

Oct 03, 2008 | Sony KP-51WS510 51" Rear Projection...

1 Answer

Sony Big Screen Tv


Your flyback transformer is probably bad. It will need to be replaced. You could also try adjusting the voltages to the crts from the flyback. There is a set of 6 screw like pot knobs just behind the speaker grill. The bottom three knobs are the ones you want to adjust. Do it very very slowly as it shouldn't take much to correct the problem.

Jun 10, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Reducing voltage for Sony KP-51HW40


G2 = screen...On the screen controls behind the front grill, behind the hardboard. 6 pots, 2 rows of 3 pots. 3 for focus and 3 for screens. 1 for each of the the red, green and blue guns/crts.
To adjust: Run set, change to black screen with tv/video button. Dial each screen clockwise untill you see a color. Then counterclockwise slowly untill that color goes black, then stop. Do this for all 3 screen controls.
If you need to adjust the focus then bring up lettering. I use the QVC channel for this. Focus is done by eye.

Mar 19, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Light blinks wont start up


5 flashes is current to cathode detection (IK). this can be caused by a bad focus block, bad driver ICs on the CRT board or the CRTs them selves. I would start with the focus block they have been known to go bad (leak voltage). have a tech replace them because G2 is a critcal adjustment.

Feb 20, 2008 | Projection Televisions

Not finding what you are looking for?
Projection Televisions Logo

Related Topics:

138 people viewed this question

Ask a Question

Usually answered in minutes!

Top Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1191 Answers

yadayada
yadayada

Level 3 Expert

61168 Answers

Are you a Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...