Subscribe

Receive updates via email:

 Updates via RSS

Tag Cloud

Blog Archive

Friday, September 07, 2007

How to Self-Diagnosis Screen Displays for Sony Projection TVs

Continuing the theme from last night's post on the "Ultimate" Sony Project TV service and repair guide, this is a technique that can be used to diagnose possible issues with your Sony Projection Television set and display it on screen. This is of course helpful assuming your Sony TV will at least turn on, even if it is off and on intermittently. The other possible way is of course to try and determine the issues by blinking off and on. While this information pertains specifically, to the KP-51HW40/KP57HW40 it may be compatible with many additional models.

In summary, when there is a problem or malfunction on your television that makes it impossible to determine specific symptoms such as power going off or the screen turning to black -- a screen display can display if a problem occurred in the past, and whether the problem detection circuit function to verify the issue.

To see the on-screen display to show the issue, while the TV is in the standby state, quickly press "Display", then Channel "5", then the minus "-" on the volume, and then finally the "Power" button from the remote control.

The screen will then display the following self-diagnosis items:
Self Diagnosis
2: +B OCP N/A
3: +B OVP N/A
4: V STOP 0
5: AKB 1
10: WOT 24

The number zero "0" means that there were no faults detected, while the number one "1" means that a fault was detected at least one time.

What do the self-diagnosis items stand for? Here are the general definitions:
OCP - Low B and +B line detect DET SHORT, and shut-down POWER ON RELAY. Reset by turning power on/off. In case of +B is loaded approx. 1.5A or more, microcomputer detects it via IC5005
OVP - In case of +B becomes approx. 150V or more, POWER ON RELAY shuts down and microcomputer detects it via IC5005. Reset by turning power on/off just the same as OCP. Low B Occurs when set +5V is out
V Stop - In case of V Drive disappeared, Q8001 detecs it and shut-down POWER ON RELAY. Microcomputer detects it and makes LED blinking.
AKB - IK detection. Makes LED blinking in case of microcomputer doesn’t detect IK returns of IC309 (CXA2150AQ) 20 seconds or more.
H Stop - In case of H DRIVE is disappeared, Q378 detects it and shut-down POWER ON RELAY shuts down. Microcomputer receives H Stop data from Q378 and makes LED blinking.
HV Stop - In case of HV becomes 33KV or more. IC8006 detects it and shut-down POWER ON RELAY. Microcomputer makes LED blinking.
Audio - In case of DC component overlaps the output of Audio Amp., POWER ON RELAY shuts down. Microcomputer detects it and makes LED blinking.

While this is helpful to start the diagnosis for a problem with your Sony Projection TV, it does not automatically clear or reset. For instance, if you perform a repair, or replace a part on the television, then this needs to be reset so it will return all the values to zero.

In order to perform a wipe on the Results Display, make sure the TV is off and in standby mode. Then quickly press "Display", the Channel "5", then the plus "+" on the volume, and then finally the "Power" button to enter the service mode for the TV. Then simply press channel "8" and then "Enter" to send a test reset command which puts it back into the factory preset condition.

At any time you can exit the self diagnosis screen display or service mode by pressing the power button on the remote control or on the television.

This guide may also be compatible with the following Sony Projection TV models:
KDF-37H1000
KDF-42E2000
KDF-42WE655
KDF-46E2000
KDF-46E3000
KDF-50E2000
KDF-50E3000
KDF-50WE655
KDF-50X30
KDF-55E2000
KDF-55WF655
KDF-55XS955
KDF-60WF655
KDF-60XBR950
KDF-60XS955
KDF-70XBR950
KDF-E42A10
KDF-E50A10
KDF-E55A20
KDF-E60A20
KDF-E60A20PKG
KDP-51WS550
KDP-51WS655
KDP-57WS550
KDP-57WS655
KDP-57XBR2
KDP-65WS550
KDP-65XBR2
KDS-50A2000
KDS-50A2020
KDS-55A2000
KDS-55A2020
KDS-55A20L1
KDS-60A2000
KDS-60A2020
KDS-70Q006
KDS-R50XBR1
KDS-R60XBR1
KDS-R60XBR2
KDS-R70XBR2
KF-42WE610
KF-50WE610
KF-50WE620
KF-50XBR800
KF-60DX100
KF-60WE610
KF-60XBR800
KP-41T15
KP-41T25
KP-41T35
KP-41T65
KP-43HT20
KP-43HT20C
KP-43T70
KP-43T70A
KP-43T70C
KP-43T75
KP-43T90
KP-46C36
KP-46WT500
KP-46WT510
KP-46WT520
KP-48S65
KP-48S70
KP-48S75
KP-48V75
KP-48V80
KP-48V85
KP-48V90
KP-5000
KP-51HW40
KP-51WS500
KP-51WS510
KP-51WS520
KP-53HS10
KP-53HS20
KP-53HS30
KP-53N74
KP-53N77
KP-53S65
KP-53S70
KP-53S75
KP-53V15
KP-53V75
KP-53V75C
KP-53V80
KP-53V85
KP-53V90
KP-53XBR200
KP-53XBR300
KP-53XBR45
KP-57HW40
KP-57WS500
KP-57WS510
KP-57WS520
KP-57WV600
KP-57WV700
KP-57XBR10W
KP-61HS10
KP-61HS20
KP-61HS30
KP-61S65
KP-61S70
KP-61S75
KP-61V75
KP-61V80
KP-61V85
KP-61V90
KP-61XBR200
KP-61XBR300
KP-65WS500
KP-65WS510
KP-65WV600
KP-65WV700
KP-65XBR10W
KP-7200
KWP-65HD1

13 comments:

Anonymous said...

ken - your help & unselfishness in putting all these great ideas online is unprecedented. I have a KP-46WT500 with the standard problem everyone seems to get after about 3-5 years where there are images that resemble 3D without the glasses. My set does not have the screws in the front by the speakers to get off the cover. It is screwed on behind each speaker on the edge of the set. However, there has to be some other place it is attached in the middle & I cannot for the life of me determine where. Do have any ideas? Thank you very much - RVF

Ken Hanscom said...

Any chance that it is hinge or clipped? If so, perhaps some light pressure (making sure not to break if it is a screw) either up or down will cause it to come unhinged or unclipped?

Anonymous said...

Hi Can,

Can convergence problem be solved using the red, blue & green adjustment or it is only for the red lines. I have Sony kp53hs30.

Thanks

Anonymous said...

hi i´m form portugal... sorry for the bad english...
i have a tv sony KV29CL11E and the led of stanby is blinking 2 times... 2 times... over and over... and ofcourse i don´t have any sound our image on the tv.... Do you Know where can i find the problem ? wich IC our Q can i change on the board for example?

Tank you very much

João Santos

P.S. josa@portugalmail.pt you can answer for this mail.. tanks!!! a lot

Anonymous said...

The Sony KB-46WT500 has 4 round male plastic connectors that plug into round plastic holes in the particle board behind the front cover. 2 of them are even with the middle of each speaker and about 4 inches away from the inner edge of the speaker toward the middle of the front cover. The other 2 are just below the top edge of the cover about 4 1/2 inches away from the power button - 1 on each side.

Just remove the screws on the ends and then pull enenly on the front cover. You won't break it. i realize this may be too lat to help you, but maybe someone else will be helped. ------------ Does anyone know if I can replace or repair a scratched screeen cheap?

Anonymous said...

Hey guys i have a KDF-70XBR950 ive done all the things above here. ...all my self-diagnosis items are at 0 now had one issue with OVP - +B turned power on and off and wall gone. But my problem is my whole screen wether its tv/cable or dvd or wii the whole screen is vertical colored lines and dots. However you can hear everyone talking .. no lights flashing .... and any text is clear as a bell. Bulb is a month old. Ive even reset to factory 8 enter.
Nothing seems to work any ideas?
ems_merchant@yahoo.com

Anonymous said...

I was having all sorts of color issues and did the reset to factory conditions and things look great. Thank you so much for posting these instructions and tips!!!

Joanie said...

Thanks so much for this site. I have incidents of white and/or blue flashes followed by color issues. I used to have green lines, but you fixed that for me. :-) I lost my remote, so I used the front panel flash focus to no avail (works for awhile though). (We have a Direct TV remote). I unplugged the TV overnight to see if resetting to factory settings would help. It didn't. I looked in the manual (which I have in a pdf file if anyone needs it) and there is nothing in there about having to change the bulb. Help! Joanie

bob said...

I have a Sony KP-51HW40 and my son broke the front glass screen AND the black screen in back of it. I have located the same model that is non-working. I would like to try to replace the front glass, and the black screen behind it. Can someone tell me how to remove these 2 screens? I'd really appreciate any help you can give me.

Sinclair said...

Ken, thank you for posting all this helpful stuff.

I have a 57' sony rear projection. I forget the exact model, but I'm getting the 5 blinks, and I can't even get it to turn on for the service menu. It clicks like its coming on, but then shuts off after a few seconds. Any idea how I could fix this? would it simply be a matter of replacing one or more of the boards?

Any help is much appreciated.

Thanks,
John

Anonymous said...

I have a 4 year old Sony KDF-60XS955 LCD Projection TV that has the Pixels going out. 200 to 300 of them and a blue blur along the right side.
Is this the LCD going out?
Can it be fixed?
How much does it cost?
Do you know to fix it?

Anonymous said...

I have a problem with my kf60dx 100 it will just hum when I plug it in and it it will not show a picture or sound what could it be? Please help somebody!!!!!!!!!!!!
Thanks mike

jon sanchez said...

What if the flash focus thing for my tv dosent work?