Question about Pioneer SD-582HD5 58" Rear Projection HDTV-Ready Television

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Convergence chips replaced, now power goes to standby immediately

I replaced the STK392-110's, then powered on only to have the set go to standby after about 3 seconds. Examined fuses and found a blown FU204 fuse; 5A / 125V. No service manual, and not a professional repair guy. Need some help to figure out what's tripping the fuse. When I first turned on the set after installing the STK's, it had sound and seemed to be working, but only after about 5 to 10 seconds went into standby. Repetitive turning on only got about 3 sec's before going to standby. Now, power isn't even able to start the power on cycle, no obvious change from the standby mode, no noise, no new lights, etc. I imagine replacing the fuse will allow it to exit standby, but will probably still only last 3 sec's before returning to standby... and eventually will blow the new fuse too. Any suggestions on what to check? I'm tempted to re-install the STK's, or even replace the new one's with the old ones just to see if there's a short in the work I did there. Thanks in advance.

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  • UpInSmoke Sep 27, 2007

    I replaced the fuse, and it blew, as expected. Then re-examined the freshly soldered STK's and found nothing obvious, so applied a clean iron to each pin just to clean it up and be sure there wasn't a bridge between them... that seemed to work. I set the convergence manually and it's perfect now. Wish there was an automatic way to set the convergence through the menu selections.

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Whenever you suspect you may have a solder bridge where you did not intend one, use a digital meter set on connectivity to check out whether you are getting a short. If so, most likely you need to redo it.

Doublecheck by using the same meter set on ohms reading. If it is super low, like 1-2 ohms, it's shorted. Your conductivity beeper may still sound off if it's less than 100 ohms, which may be a valid reading between 2 points on any cb.


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Posted on Feb 07, 2008

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1 Answer

My Sony KP-46WT500 TV does not turn on. Red standby light blinks and goes out.


possible bad convergence chips and the two fusses in the power suply or bad tube I need to know how many times does the stand red led flashes after it powers down

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It could be that this time the convergence module went. I have replaced many convergence ICs and don't believe I have ever had any go out within 6 months. That does not mean that they can't. Remove the leads from the convergence area to isolate the ICs as you said you were told. Now remove the digital convergence board which should be nearby and probably will be in a metal box for noise protection. If you can I would unsolder the convergence ICs to totally take them out of the circuit and just in case one or both shorted out. Once everything I talked about has be removed try the unit. If your problem is in the convergence only your set should work but have an ugly picture. Let me know what you find and we will go from there.

hardrocko

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My screen is blank and the power button keeps flashing blue


AV56wp74? The power button blinking blue means the set is in shutdown----the most common reason for this in this set is one of the two convergence chips is shorted. The way I usually prove this is to remove rear cover and or front grill and examine convergence circuit located at the front of the set----Also--I will unplug the plug from that circuit board that goes to the TV's power supply---if the set turns on with the convergence circuit board unplugged from it---you know your trouble is one of the two chips---if this is the case both have to be replaced and the set adjusted.


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I need a service/repair manual for a Pioneer SD-643HD5.


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Mar 26, 2009 | Pioneer SD-643HD5 64" Rear Projection...

3 Answers

Convergence will not line up after replacing ic & resistors


Did you replace the resistors when you replaced the convgence chips? If one of them was bad you would still have the problem.

Here are some of the most common symptoms and example photos.

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
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Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.


2c07611.pngSolution


You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick email and they will put one together for you. Their kits includes photo instruction guides, original Sanyo STK chips, convergence resistors, pico fuses, etc.

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I have a sony projection tv and the red is coming out of line where it makes you see double like a red rainbow effect shadow. I tried the flash focus and the problem still persists any ideas on where to go...


When you first turn it on,Count the flashes on the standby/power button.

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.

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 isalso 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
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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
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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

Please rate this solution

Jan 03, 2009 | Sony KP-53V80 53" Rear Projection...

1 Answer

Standby Indicator flashing SONY KD-32NX100UWhen I turn the TV on the TV goes straight into standby red light, I press the on button on the remote and the TV comes on for about twenty seconds then it...


If the TV goes in standby, then it is in protection mode.

Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
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Try first leaving the TV power cord unplugged for some times, let say one hour or so.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.

1Theinternal circuits are jammed because of electrostaticcharges accumulating on capacitors, or because of a wrong voltage readby the main chip on your monitor controller board. this started theprotection circuit.

2 The protection circuit detected a wrongvoltage or abroken contact, identified an internal fault and kicked in, starting the flashing light.

If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |


On LCD Payparticular attention at inverter and power board, power board can beinspected looking for bulged or leaking capacitors, then tested with amultimeter. The inverter is more difficult to test , there is need toread voltages, should be done by a tech. Also the LCD controller board can cause same problem

On Plasma, test Sustain (Ysus/Zsus) / Buffer boards , cables to plasma, digital board and power board.

On Rear Projection : check lamp, lamp ballast, power board, and convergence.

On CRT TVs, check ballast , flyback transformer, CRT, Tuner, Convergence.

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4 Answers

Can't get full power on


I have this exact same issue; search engine took me here. I have been experiencing this problem for about a year now. When you power on, the RED standby light goes out, the power light turned GREEN, you might hear a small pop sound, then the RED standby light goes back on. YOU HAVE BLOWN A FUSE. My problem is this is occuring much more frequently now and I'm going through fused like crazy. So I'm looking for a long term solution. To replace the fuse, turn off the standby power switch on the front. Unplug the power cable. Open the back panel. All logic and power modules are on the bottom of the cabinet. Therer is a large power module in the middle. In the middle of this module are 3 fuses. The one that typically blows is the one in the middle. It's a 5 amp fuse, but double check the rating before replacing. Good luck, Mark

Aug 05, 2007 | Pioneer SD-643HD5 64" Rear Projection...

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