Question about Sony KV-27V42 27" TV

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TURN TV ON FIVE VOLT RELAY CLIKS 4 OR 5 TIMES STILL NO PIC OR SOUND

I HAVE REPLACED SCR DID NOT HELP

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  • Dwight Biddle Mar 04, 2008

    when turning TV on all I hear is 5 volt relay clicks 4or 5 times

    replaced SCR still same problem.

    This is the problem I started with.

    Any help.



    Thanks

    Thomas

  • mack paulk May 11, 2010

    What was your original problem?

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If ur processor has 5v vcc then set could be in protection mode.

please give me the no. of processor ic so can i help you

regards
rawan

Posted on Mar 12, 2008

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I turned on my tv and everything was fine it started to make a little wisttling sound and all of the sudden the pic dissapeard no audio and no pic the on light stays on but nothing shows please help .


There are two possible problems. We will concentrate on one first. You say the red light stays on, and the TV will not power up. Actually this is a good sign. This TV has one bad capacitor and a one weak capacitor. The bad capacitor location is C421, which is a 200 volt 10 MF at 85 degrees. Replace with a 200 volt 10Mf at 105 degrees. The second capacitor that is weak is the C482,which is a 50 volt 4.7Mf at 85 degrees. Replace with a 50 volt 4.7 Mf at 105 degrees. This should enable your TV to come back on. If the TV will not come on we will have to replace the eeprom. At this time I believe the eeprom is fine. In either case, the capacitors will need to be replaced. Try that and let me know how you do. Thanks for asking me and show all hands of support!

May 16, 2011 | Philips Magnavox 27MS343S 27" TV

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I turn the tv on then it shuts of


Any blinking lights? Green or red? How many times does it flash?

Jul 01, 2010 | Mitsubishi WS-55807 TV

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Kv-32fs16, no picture or sound , red lights flash 4 times


Hi
In sony tv`s the 4 blink code(sony error codes)usually means that there is a vertical deflection problem.
It is often caused by a faulty vertical output i.c and/or related components. If you feel handy with a soldering iron let me know and i`ll help you with it.
Hope this help Merry Christmas

Dec 17, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

My tv wont turn on.it sounds like its going to but


The 7 blinks are an error indication that is generated by protection circuitry inside the set. A problem has been detected and the set is shutdown to prevent further damage. The cilnking is the power relay that is attempting to turn on the set. I'll look up the eror code and update this with the likely solution later today.

Dan

Nov 03, 2009 | Sony FD Trinitron WEGA KV-32HS500 32" TV

1 Answer

If i turn off my tv it wont turn back on


This problem is either the TV's software or how the mainboard is distributing power so instead of just unplugging the TV, try a power drain:
1. Unplug the product's power cable so the device is not grounded to the house. 2. Press and HOLD the product's own power button for 1 minute to drain the capacitors. 3. Plug the product back into a wall outlet and try to turn it on.
Note: This procedure works with battery operated devices as well so remove the batteries and hold down it's power/on-off button.  Electricity can remain in capacitors and on circuit boards enough to prevent normal functionality. By clearing the residue electricity, your product will have a fresh start and many times this will resolve a buggy or non-responsive device that appears to be dead.
Since hardware either works or it doesn't, your issue is either software or power related since you can get it to work so hopefully the power drain will indicate further.

Mar 25, 2009 | Proscan PS36109 36" TV

1 Answer

Sony TV Problem model # KV-27V42


your tv has a  short  circuit, the power supply see that and put away the polarizatio n , you have to check  if transistor of power on flyback transformer is  good
or bad - delfo

Mar 12, 2008 | Philips Magnavox 27MS343S 27" TV

1 Answer

Blinks twice pause blinks 4 times


SYMPTOMS
Dead or Shutdown symptoms.
RESOLUTION
Dead symptom reported to be caused by the following:
1. Dead.
Found Q601 & Q602 shorted, R615 open, and IC600 on the A Board were the cause of the symptom.

2. Dead.
Found D614, Zener diode, on B+ line was shorted.

3. Set shutdown and the standby LED blinks 3 then 5 times.
Found 200v line was low. Disconnected CN706 on the C Board and found 200v now
present on CN706/pin 7.
Found: IC702 (C board) shorted the 200 volt line.
HQ Comments: C541 on the A Board could become defective if the 200v line is shorted since
the polarity on the capacitor will become reversed. R553 fuse resistor could also be opened
on the A Board.

4. Error code of 4 blinks .
Dead set press power button you hear the relay and you see red led flash 3 times and stops? Has no HV or other action. Tech removed the back as no 200 volt supply, did unplug CN706 and now has 200volts. Tech did remove the IC702 and same it comes up so needs this IC.

5. Dead. 5 blinks then 3 blinks. Found shorted Damper diode D504. Q502 has a built in damper, as well.

6. The TV does not turn On and the LED flashers 9 times.
Found one side of R610 open on the Base of Q690 on the A board.

7. Dead, 9 flashes, Q606
Would not start when cold, has stand by 5 but relay never energize.
No response from front panel or remote controls.
9 blinks is not in service manual.

Found Q606 (Zero Det.), on the A Board, had no soldered on the collector
of the transistor causing an intermittent connection.
Soldered the collector of Q606 and set returned to operation.
HQ Comments: Also refer to E30968554.

8. Dead. 5 blinks or 3 blinks
Found on the A Board D611 in the Power Supply open, and Hor. Output Q502 shorted.

9. Found Power Supply components D611 shorted causing Q600, Q601, and R615
to fail on the A Board.

10. No picture or sound. Standby flashes.
Found Q512 (Pin Out) shorted. on the A Board.





11. Dead. No sound or picture.
Found the FBT and Q502 were shorted, and R615 open on the A Board.

12. Dead
No power, Stand by light flashes 4 times.
Found T604 and IC601, replaced.
Found D611 on the A Board was the cause of the symptom.

13. Dead.
Found D534 shorted on the A Board.

14. Shutdown 4 Blinks.
Replacing R595, OCP Latch Q532 on the A Board, fixed the set.
PN 1-247-891-00, 330K 1/4 watt.

15. Unit shuts down after 15 mins.
Immediate shutdown - sometimes it give a 3 blink, sometimes nothing.
Found R595 (330K) was open located in the Q532 OCP Latch circuit.
R595 P/N 124789100 330k 1/4w

16. Won't power up. LED Blinks 4 times, B+ is very low
B+ is at 49V, +15/-15 only coming up to about 1 volt.
Wth Hor Out disconnected B+ only comes up to 50v.
Found D611 on the A Board was the cause of the symptom.

17. Intermittently does not turn on
Found a intermittent C633 on pin # 3 of IC600.
C663 P/N 113647911 Film cap .001uf 100v



Billy

If you need the service manual contact me at:billyjones@fletchersite.com

Jan 27, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

4 Answers

Sony kv32fs16 problem


The STANDBY light is flashing on the television and there is no picture or sound. Solution
sp.gif sp.gif The STANDBY light will flash if an issue is detected within the television. This can sometimes be resolved by simply following the steps below to reset the television.
  1. Turn off the television. IMPORTANT: For a projection television that uses an internal lamp, wait 5 minutes after turning off the television to allow the lamp to cool before continuing with the following steps.
  2. Unplug the television power cord from the electrical outlet.
  3. Let the television remain without power for 60 seconds.
  4. Plug the power cord back into the electrical outlet. NOTE: 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.
  5. Turn on the television.
If the issue is still unresolved after following all of the troubleshooting steps, service may be required. Please note the number of times the STANDBY light flashes and relay that information to the service center.

Nov 02, 2007 | Sony FD Trinitron WEGA KV-29LS35 29" TV

1 Answer

Sony KV-20FS12


First, unplug the tv set for 30 seconds, plug back in and try ti turn on.. Second, If you're NOT still under warranty you should at least open the TV and look for a blown fuse near where the power cable enters the set. A lot of times you can buy replacement fuses at a local electronic or hardware store and they're easy to replace. Check the fuse. If it is blown, it will be obvious and make sure that the set is unplugged before replacing it. If it blows again, or if it is not blown, your problem is probably in the 'X' volt regulator and you will need professional help with the repairs. You can also check the board where the components are mounted and resoled any that look bad. Brief power outages may cause the TV not to turn on. If you are using a surge protector, try connecting the set directly to the wall outlet. In your case it could caused by a blown fuse, a leaky diodes or a bad solder joint at the horizontal drive transformer. All can be replaced at a local electronic or hardware store and they're easy to replace If this does not correct the problem, you may need to have your TV serviced. good luck!

Jan 25, 2006 | Sony KV-20FS12 20" TV

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