Sony TV

18
Found 28th Nov 2009
I have a Sony rear projection LCD TV that has started to switch itself off (like it has been switched off by the remote) and the green LED lights flashes on and off with a red light flashing inbetween.

Does anyone have an idea what might be wrong. The TV is only 3 years old...!

Any advice would be appreciated...!

18 Comments

Poltergeist

Original Poster

choc1969;7039089

Poltergeist



If it was that then a few cloves of garlic would solve the problem...!

No seriously ! Would appreciate some sound advice .... with Christmas coming up ... can't really afford a new TV...!

Many of the later model Sony TV’s have a built in self-diagnosis f … Many of the later model Sony TV’s have a built in self-diagnosis function. If the timer/standby indicator is blinking, this could be an indication of a problem with the unit. The diagnostic blinking will occur automatically with no action required by you to engage it. The timing of the blinking you see would be as follows: two to nine blinks, (depending on the fault), about a third of a second apart, then a pause for 3 seconds, then the two to nine blinks about a third of a second apart again. Here is a list of the problems that might have occurred indicated by the number of blinks. The words in parentheses are those, which you will see for each of these faults on a diagnosis screen described later in this article. [LIST][*]Unit is dead, No blinks - Problem in the standby power section. Might check fuse, R607, Q601, IC601, R612 and VDR601 (should show open).[*]Continuous blink once a second, no pausing - No reply from the jungle IC301 (data bus is busy, shorted to ground, or held high), IK video path is defective.[*]One blink - not used for the self-diagnosis[*]Two blinks - B+ over current protection (OCP), unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.[*]Three blinks - B+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.[*]Four blinks - No vertical Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted. Check IC1509, Q1505[*]Five blinks - AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.[*]Six blinks - No Horizontal (H STOP), no raster, goes to the blinking self-diagnosis function immediately. Check C515 & 516 and the jungle IC, IC206.[*]Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.[/LIST] [LIST][*]Eight blinks - Problem with the audio (AUDIO), unit goes to standby and blinks the self-diagnosis code. Check IC406 audio amp, PS401, and 402. On some projection models of Sony TV sets, this code means that T8005 (flyback transformer), or the associative components in the high voltage circuits are defective on the D board.[/LIST] [LIST][*]Nine blinks - Replace D 6116 and D 6301 on the "G" board, do not resolder as this will fix the problem temporary. Or Panel Module Error or Thermal Error. If it is intermittent 9 blinks, meaning sometimes the TV comes on and other times you get flashing, then change the switching regulator on the "G" board or check connections. Make sure the regulator is -12 or -13 (negitive).[/LIST] [LIST][*]Ten blinks - Check Q8014 and Q8013 for shorts, leakage, or bad solder connections on the " D" board. If the transistors are bad, check R8051 and IC8005, also on the "D" board.[/LIST]Intermittent problems? This is a great feature. You can also bring up these fault codes on-screen to see a list of the problem numbers with the abbreviation of the problem and the number of times this problem has occurred. This is slightly different than entering the service mode. To see the diagnostic screen, press the following buttons: Display, Channel, 5, volume Minus, ( not plus ) then Power. This brings up a screen with a list of the problems and number of times they have occurred. Each of the problems named, are abbreviated as, "OCP", "OVP", "V STOP", ETC. We have repeated them in parentheses in the text for the "Blinks" described above so you can correlate between the diagnostic screen and the blink codes. Now that you know about these self-diagnostics, how do you use them? Say that you have a set with a black screen. You see that the LED is blinking four times. This would tell you that you have no vertical sweep, which is why the video is muted. If it was blinking 6 times, you would know that you have a horizontal fault. It's not a sure cure.. IMPORTANT: After you repair the unit, you MUST clear the values on this diagnostic screen. These codes do not reset themselves after the fault is corrected, so if you don't clear them, you'll be seeing "old" fault codes the next time you enter this screen. Clearing is done by going into the service mode (display, channel, 5, volume plus, then power ). Press 8 and Enter, which returns everything to the factory preset condition.

Original Poster



It's a bit over me this!

alexxa;7039281

It's a bit over me this!



how many blinks you getting ?

Original Poster

choc1969;7039312

how many blinks you getting ?



Will need to try it again as it switches off after 5-8 mins play but I think it's blinking green and red intermittently - perhaps 6-7 times...!

Banned

Mate, over heating which is common.

Original Poster

alexxa;7039374

Will need to try it again as it switches off after 5-8 mins play but I … Will need to try it again as it switches off after 5-8 mins play but I think it's blinking green and red intermittently - perhaps 6-7 times...!



Still waiting for it to automatically switch off....doesn't seem to feel like it wants to do it...!

Original Poster

alexxa;7039510

Still waiting for it to automatically switch off....doesn't seem to feel … Still waiting for it to automatically switch off....doesn't seem to feel like it wants to do it...!



It's just switched off...! The led light is constantly green but flashes intermittently red twice and pauses a secnd longer before flashing red again....!

Original Poster

dav1d_uk;7039505

Mate, over heating which is common.



How do you mean ...overheating....! It's usually on for several hours and has never happened! Could do with a little explanation and perhaps a solution..!

alexxa;7039575

How do you mean ...overheating....! It's usually on for several hours and … How do you mean ...overheating....! It's usually on for several hours and has never happened! Could do with a little explanation and perhaps a solution..!


could be a short somewhere, is the socket overloaded ? check the plug wiring etc

Original Poster

choc1969;7039589

could be a short somewhere, is the socket overloaded ? check the plug … could be a short somewhere, is the socket overloaded ? check the plug wiring etc



Just checked the socket and it seems fine.

The TV is plugged directly to the socket and is not shared with anything...!

Banned

i had a rear projection tv until about six months back when it started playing up, it would last about three hours from cold and the switch off, once warm it would last about five minutes and switch off, if the tv shuts off randomly it's usually caused by overheating. remove any heat-emitting objects or anything that may be insulating the tv and causing it to overheat?? any newspapers or plant pots on the top??

Original Poster

dav1d_uk;7039811

i had a rear projection tv until about six months back when it started … i had a rear projection tv until about six months back when it started playing up, it would last about three hours from cold and the switch off, once warm it would last about five minutes and switch off, if the tv shuts off randomly it's usually caused by overheating. remove any heat-emitting objects or anything that may be insulating the tv and causing it to overheat?? any newspapers or plant pots on the top??



No there's nothing blocking it - the circulation appears OK!:x It's been in the same position since we bought it 3 years ago and nothing has changed...!

alexxa;7040586

No there's nothing blocking it - the circulation appears OK!:x It's been … No there's nothing blocking it - the circulation appears OK!:x It's been in the same position since we bought it 3 years ago and nothing has changed...!



are the vents clear of dust ? do you vacuum these out regularly ? :?

Original Poster

choc1969;7040592

are the vents clear of dust ? do you vacuum these out regularly ? :?



Yes the TV is wiped clean every week!

By the way, I heard the other half say that our 1 year old now and again bangs the front screen and has on a few occasions switched it off.....do you think this may have caused it....!

alexxa;7040605

Yes the TV is wiped clean every week! By the way, I heard the other half … Yes the TV is wiped clean every week! By the way, I heard the other half say that our 1 year old now and again bangs the front screen and has on a few occasions switched it off.....do you think this may have caused it....!



:w00t:

tvs are used to it, my Sony gets banged by the kids continuously

as to wiping clean, you should really get a hand held vacuum as the wiping pushes dust into the crevices rather than removes it

Original Poster

choc1969;7040615

:w00t:tvs are used to it, my Sony gets banged by the kids continuouslyas … :w00t:tvs are used to it, my Sony gets banged by the kids continuouslyas to wiping clean, you should really get a hand held vacuum as the wiping pushes dust into the crevices rather than removes it



Ok thanks i will give it a good vaccuum. Thank you for all your help! :thumbsup:

*fingercross* i hope it works
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