Question about Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

TV will not turn on

The standby/timer light is blinking 2 long times followed by 6 shorter times. TV goes on for a second, no audio, and then turns itself off.

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Hi,
6 times standby light blinking in KV-34HS420 tv shows problem with +5V line that goes to many parts on AY, BY and MY circuit boards.
I'm not sure about your electronics knowledge and experience so I would say to check AY, BY and MY boards by swapping in similar model tv to find out defective board.
Let me know if you have additional question.
Thanks.

Posted on Jul 11, 2010

  • tlerixon Jul 11, 2010

    Thanks for your reply. To answer your question, I have little to no electronics expertise! Sounds like an expensive repair. Funny thing is it happened for the first time yesterday and I was able to reboot. The blinking has changed to 7 blinks now, which I am assuming is morse code for frustrating!

  • Shahid Electronics
    Shahid Electronics Jul 11, 2010

    7 blink code means Horizontal Deflection stopped and deflection board got problem.
    In my opinion, main circuit board could have dry solder joints/ connections as they appear after some time like 3-4 years due to constant current drain and heat of components.
    Local tv repair shop would be able to fix it for you.
    Thanks.


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Standby timer blinks times


There are particular blinks meaning on sony TV. I can give you the problem from your sony tv if you specify or count how times the LED flashed.

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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.

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1 Answer

TV won't turn on. flashes a series of 5 red lights instead of turning green


Usually Sony and LG Blinking Codes are the same. Here is what I have.
  • Unit is dead, No blinks - Problem in the standby power section. Might check fuse,
  • 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,
  • Four blinks - No vertical Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted.
  • 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. 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.
  • 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.
  • Eight blinks - Problem with the audio (AUDIO), unit goes to standby and blinks the self-diagnosis code.
  • Nine blinks - Panel Module Error or Thermal Error. If it is intermittent 9 blinks, meaning sometimes the TV comes on and other times you get flashing Make sure the regulator is -12 or -13 (negitive).
  • 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.

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1 Answer

My Sony Trinitron TV 1999 (KV-32V42) made a strange popping sound and I lost both the sound & picture. When I turn it back on, the two red lights on the front of the TV(standby/Timer light & Stereo...


Hi,

The Standby/Power light of the TV blinks when there is any internal malfunction in the TV. The self-diagnostic function of the TV will cause the STANDBY light to blink or flash when the television detects an issue. The number of times the STANDBY light flashes corresponds to a specific issue.

Few examples are given below; some of the issues may be resolved without the need for service.
1 blink / 2 blinks / 5 blinks: - This indicates that there may be a power-related problem with your set.
3 blinks: - This indicates that there may be a power-related problem with your set. The set will need to be serviced to allow a technician to determine the specific issue that needs to be repaired. If the power light flashes three times in sequence in a Lamp TV, the lamp cover is not securely attached. Reattach the lamp cover to resolve this issue.
4 blinks: - This indicates that there may be a back light or lamp power problem.
6 blinks: - This indicates that there is some kind of audio problem with your set.
7 blinks: - This indicates that there is a temperature problem with your set. Please check to make sure that the air vents on the sides and back of the set are not blocked or clogged and there is adequate ventilation around the television. We recommend that you check and clean the vents periodically to make sure the set receives adequate air flow. If the problem continues, the set will need to be serviced.
8 blinks: - This indicates that there may be a video-related problem with your set. If the flash sequence is not listed above or the light continues to flash, follow the steps below to perform a power reset:
Try the following steps to check if the issue can be resolved.
Turn off the television.
Unplug the television power cord from the electrical outlet.
Let the television remain without power for 60 seconds.
Plug the power cord back into the electrical outlet.

If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.

If the issue continues to occur, service may be required.


Thanks for using Fixya.

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1 Answer

When i turn tv on green light blinks two or 3 times then goes back to red and never turns on


We need to know what make and model to accurately answer this question, but if you have a Sony, here is the information -
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.
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.
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.
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).
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.

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2 Answers

Turns on/off


Sony Blinking Codes
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 the
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 eight blinks
(depending on the fault) about a third of a second apart, then pauses for 3
seconds, then the two to eight 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.
Unit is dead and there are 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 As 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 Vert. Deflection (V STOP), Screen goes to a single
horizontal line then the video signal muted. Check IC1509, Q1505
FIVE Blinks---AKB circuit (AKB), 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. Also unit be in IK blanking,
try turning up screen slightly.
SIX Blinks---No Horizontal (H STOP), no raster, goes to the blinking selfdiagnosis
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.
EIGHT Blinks---Problem with the audio (AUDIO), unit goes to standby and
blinks the self-diagnosis code. Check IC406 audio amp, PS401 and 402.
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, Vol 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 problem names is 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.
So, 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
4 times....This would tell you that you have no vertical and that 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, but it's a little better than a poke in the eye with a sharp
stick.
IMPORTANT: after you repair the unit, PLEASE 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 ) then press 8 and Enter, which of course returns
everything to the factory preset condition.

Apr 25, 2010 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Don't know how to turn off the alarm. Bought this used (made in 1995) so there were no books with it. It comes on every day at 2. The system is on 'standby' all the time. I just don't seem to find the...


Setting the ON time (Example: AM 10:15).
1. Press the TIMER button on the Unit for more than
two seconds.
The Timer indicator lights up and the hour digit of the
current ON time blinks on the display.
• When the clock is not set, “CLOCK” and “ADJUST”
appear alternately on the display. Set the clock first.
Press the ¢ or 4 button on the Unit to set the
hour you want the Unit to come on.
Pressing the ¢ button moves the time forwards and
pressing the 4 button moves it backwards. Hold
down the button to move the time rapidly.
2. Press the TIMER button.
The minute digits of the ON time blink on the display.
Set the minute you want the Unit to come on, using
the ¢ or 4 button.
2 Setting the OFF time (Example: PM 1:30).
1. Press the TIMER button.
The hour digit of the OFF time blinks on the display.
(The same time as the ON time will be automatically
set.)
Set the hour you want the Unit to be turned off, using
the ¢ or 4 button.
2. Press the TIMER button.
The minute digits of the OFF time blink on the display
Set the minute you want the Unit to be turned off, using
the ¢ and 4 buttons.
3 Selecting the music source.
1. Press the TIMER button.
The “TUNER” or “CD” blinks on the display.
2. Press the ¢ or 4 button to select the music
source you want to listen to.
The display changes as shown below.
TUNERôCDô(back to the beginning)
4 Setting the volume level.
1. Press the TIMER button.
The current volume setting blinks on the display.
2. Press the ¢ or 4 button to select the volume level.
-- :The current volume level will be used.
0 to 50 :When the timer is turned on, the Volume
will be automatically set to the selected
level.
5 Press the TIMER button.
The timer setting is completed and the display returns to
the display before you set the Timer. The Timer indicator
remains lit.
6 Before turning off the System, prepare
the music source selected in step 3.
TUNER: Tune in to the desired station.
CD: Insert a CD. (Playback will start from the first
track at Timer on.)
7 Press the % button to turn off the System.
In standby mode, you can see the Timer indicator ( )
on the display.
• When the timer turns on, the Timer indicator starts
blinking and the prepared source in step 6 will be
played.
To cancel the timer, press the TIMER button. The
Timer indicator ( ) goes out on the display.
To re-activate the cancelled timer, press the TIMER
button to light the Timer indicator ( ).
At this time, you can see the current timer settings. Each
setting appears on the display for two seconds in the order
of ON time, OFF time, music source and volume.
To change the timer setting, repeat the setting procedure
from the beginning.

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1 Answer

I was watching my kp61v80 and the screen went black-can you give me the trouble codes for the flashing standby light


Diagnosis item
TIMER/STANDBY
Indicater
Number of blinks
Supposed malfunction Condition
Self-diagnosis
screen display,
Diagnosis item: Results
•Power not ON 0
[Standby Power Supply System]
F601 open.
R607 open.
Q601 short circuit
[Main Power Supply System]
IC601 and R612 are broken.
VDR601 short-circuit
Cannot turn on the power.
LED doesn't blink.
+B OCP detection 2times Short circuit of power supply system in each circuit.
Goes to the standby mode
Short circuit of +B line
2 : +B OCP 000
+B OVP detection 3 times
T603 pin 78 open.
R672 open.
Goes to the standby mode
Malfunction of power supply circuit
3 : +B OVP 000
Vertical deflection stop 4 times
IC1509(V out) is broken.
Q1505(V Pulse Buffer) is broken.
Raster goes to one line horizontally, Aand then video
signal is muted.
4 : V Stop 000
Video out abnormality detection 5 times
Video out, Q705, 732, 761 and others in C board
circuit.
Q218, 219, 220 (A board)
TIMER/STANDBY LED blinks approx. 30 seconds,
and then blinks for the self diagnosis.
5 : AKB 000
Horizontal deflection stop 6 times
C515, 516 open.
IC206(YC Jungle) is broken.
Raster doesn't appear. 6 : H Stop 000
Audio abnormality detection 8 times
IC406(Audio amp.) is broken.
PS401, 402 open.
The sound is not out.
Goes to the standby mode
8 : Audio 000

Jun 17, 2009 | Televison & Video

2 Answers

No picture and tv automatically turns off


Here are the blink codes. 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 Cboard, 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. 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 newer models of Sony TV sets, this code means that T8005 is defective on the D board. 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). 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. 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..

Jul 06, 2007 | Sony FD Trinitron WEGA KV-32FS120 32" TV

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