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Sony KV-13TR24 dead

Wont power on. Opened up power cord to tv is good. 2 fuses on main board good. Pushed on/off switch directly on board no help

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  • 3 Answers

SOURCE: Stopped working

I had a similar problem with a jvc 8040. when I replaced the fuse it became very obvious that the b1560 output on the center channel was blown (smoke and sparks, always a dead giveaway). I haven't fixed the center channel yet but simply unplugged the center channel board and removed it from the unit. Now everything works fine except of course the center channel. Pre outs still operate just fine so a slave amp could be used for center channel power, or you could just go and buy a marantz amp; I did and then I realized that I was lucky that the old jvc quit.

Posted on Jan 30, 2008

SOURCE: Cant get the tv to power up

I'm having the same problem. No power at all, tv was working fine and shut off by itself WS-65517. Please help!

Posted on Mar 27, 2008

SOURCE: Sony KV-32FS120 blinks 4 times

good day.
Have you tried first resoldering the terminals in the circuitry?
Also, try to check for the ABL supply near the flyback. Watch out for the small voltage zener diodes.


response is highly appreciated.


chris

Posted on Mar 28, 2008

  • 927 Answers

SOURCE: Mitsubishi WT-46807 Dead

Good day; TRY THESE SOLUTIONS: 1. CHECK IC7A00 PIN 53 FOR LOW LOGIC (0 VOLTS), IF HIGH (3.3 VDC) CHECK FOR SHORTED D9A31 PART # 264P045050 AND OPEN R9A33 220 OHM 1/4 WATT ON THE POWER PCB. This model is equipped with a self-diagnosis feature to help with diagnosis of shutdown problems. To activate this turn the unit on let it shutdown then press the input/device and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times. 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source) 1. SELF- DIAGNOSIS INDICATE X-RAY. CHECK FOR A SHORTED IC5A03 PART # 270P704010 AND AN OPEN R5A73 82K ¼ WATT OFF PIN 2 OF IC5A02 ON THE MAIN PCB. 2. SELF DIAGNOSIS ERROR INDICATES SHORT PROTECT. CHECK FOR OPEN FUSES F9A04 AND F9A05 PART # 283P043090 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT. 3. SELF-DIAGNOSIS INDICATES SHORT PROTECT. CHECK FOR A SHORTED IC4B01 PART # 270P261020 (VERTICAL OUTPUT) LOADING 24-VOLT SUPPLY LINE. LOCATED ON THE MAIN PCB. I hope this more helpful, big IRISH.

Posted on Aug 12, 2008

Slinteriors
  • 8617 Answers

SOURCE: my big screen tv

Those are the two 5amp pico fuses that go out when the convergenec Ics go out on a mitsubishi. You can get the ICs and pico fuses at the following link. If youre not sure which ICs you need leave them a email with your model nuber.Heres the link
http://servicemanuals.vstore.ca/

Posted on Sep 01, 2008

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Sony trinitron 32" wont turn on KV32s16


if their is no any power indicator that light in the front panel, it was a power supply board failure. you must look first the fuse if busted, then before you replace it ensure no other part has damaged like shorted diode, transistor, transformer and regulator.

Jul 18, 2012 | Sony FD Trinitron WEGA KV-32FS120 32" TV

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Try this: unplug the set and wait about 10 or 20 minutes. This is to make sure that the main power supply filter caps completely discharge. Look on the power supply board, close to where the AC cord attaches to the board. Look for a white resistor labeled "0.1 OHM" (the symbol for OHM, like an upside-down U) and measure it with your ohm meter. If it is open then your switching transistors in the main power supply are most certainly shorted. Older sets had 2 separate transistors on little heat sinks labeled "C4834", then they switched to 2 transistors in one package labeled "MX0841" or "MX0842", and then some sets went to two separate MOSFET transistors. Measure those parts and post your results and we will guide you from there.

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Most likely cause is when power came back on a surge damaged something in the main power supply---if total dead with no lights or anything follow power cord inside the set to the plug in fuse that has to be there.

Some general info=

I see so many here with no sound/nopicture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have to buyand try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.If set is opened at least look for puffed up and bad caps like in thisphoto.
5_21_2012_4_00_01_pm.jpg5_21_2012_4_00_33_pm.jpg

May 21, 2012 | Sony Televison & Video

1 Answer

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Check the main fuse on the power supply regualtor board of your tV. If found opened, check and find out the reason for failure to present fuse, before put an other in place.

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1 Answer

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1 Answer

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Barry, remove the back cover by removing the screws with an arrow next to them. The fuse is located on the left side as viewed from the back, where the power cord connects to the circuit board.

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1 Answer

Sony KV-32S45 32" TV no power


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Test a different power socket.

If there is no power at all, and the power cord is good, then it is a faulty power suupply board. Probably a capacitor on power board had blown.
The board must be tested and repaired by a technician.

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1 Answer

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1 Answer

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1 Answer

FUSE SPEC FOR SONY KV-36FV16


The rear panel nameplate will state the unit power requirements. Look for number of amps draw. Let's say you read "2 A". Now, depending on where in the circuit this fuse is, your fuse size will be no more than two amperes (sometimes slightly greater if slow-blow fuse spec'ed). So, if your fuse is located immediately near the line-cord entrance to circuit board, start with a 1.0A fuse. If that immediately blows, then increase to a 1.5A fuse. Repeat until 2 A fuse is reached. If still blowing, then there is a problem with the set, either power supply or tube.

Jul 17, 2007 | Sony KV-36FV16 36" TV

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