Question about Hitachi 51SWX20B 51" Rear Projection Television

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How do I check standby voltage?

I thnk I posted this in the wrong place.


Thank you again for your assistance... It is frustrating for me to ask questions, I know your time is valuable. But the simple troubleshooting you described is not simple to a PC Tech like myself. Here goes... How do I check the standby voltages? I have a voltmeter I use when troubleshooting PC's. I just do not know what the readings should be or where to probe on the TV mobo. Also, what should the readings be when correct or incorrect? Are there any articles at FixYa that I can read for a better understanding of the troubleshooting process? I have searched and searched this site and others but cannot find much of anything that describe how to troubleshoot. If I need to sign up for premium service to compensate you I can do that too. Let me know how I can help you. At this point It sure would be great to push the button and have the TV back. I have no problem paying a Pro to fix it at this point because I just want it working again but, It sure would be a great feeling to know I did it with the help of people like yourself and the internet.
Thank you very much again,
Daniel Shantz

P.S. If you ever need any computer help just email me.

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  • Hitachi Master
  • 8,617 Answers

I would suggest going to the following link if you dont have the service manual as they have the service manual for your set which they email after purchase and then they will provide free tech support with instant messageing that will help you check the proper voltages in the proper way. The manuals are very inexspensive and the tech support is free and its not limitted in any way. They go the distance to help you get the set operating agin.Heres the link check them out.
http://servicemanuals.vstore.ca/

Posted on May 17, 2008

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1 Answer

Standby light was blinking once every 4 or 5 secs, now it has fizzled out and won't come on again. Thanks


Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

Apr 14, 2015 | Televison & Video

1 Answer

Bush tv 32 inch won't turn off standby it flashes about 4/5 times blinks then starts flashing again..


Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
Type in the brand name of your device, in the search box [at the top right] of the display window, and press enter to get all related posts. It will make surf easy.

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1 Answer

Standby mode


When the STANDBY indicator

flashes

Immediately unplug the power cord

and check the following items.

• If your unit have a voltage selector,

is the voltage selector set to the

correct voltage?

Check the voltage for your region,

then make sure the voltage selector

is set correctly.

• Are the + and - speaker cords shortcircuited?

• Are you using the supplied

speakers?

• Is anything blocking the ventilation

holes on the rear of the unit?

After checking the above items and

fixing any problems, plug in the power

cord again and turn on the unit. If the

STANDBY indicator still flashes, or if

the cause of the problem cannot be

found even after checking all the

above items, consult your dealer.

Dec 20, 2012 | Sony Mhc-gn1300d 3 Dvd/vcd/cd Changer...

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Panasonic TX-P42X10B wont turn on - goes into standby


Hard to troubleshoot with just this info, the red light can be helpful if its 10 blinks repeating over and over replace the power supply first then the A board. Voltages check on the power supply would narrow down the culprit.
Post again if you measure the power supply voltages

May 03, 2012 | Televison & Video

2 Answers

Dell pc with windows xp wont come out of standby mode to be able to power up pc and use it


First, how do you know it's in standby mode?
I would turn it off and disconnect from the power source. Then plug it back in and try to start it. If possible, start it in safe mode to see if you can identify what is happening. If in safe mode, do a system restore back a day or two.
var fctb_tool=null; function FCTB_Init_889fec04667049cfad3405862ebb395a(t) { fctb_tool=t; start(fctb_tool); } var fctb_tool=null; function FCTB_Init_d9758fe2c8fa4d33bc34f8b0b6f0496c(t) { fctb_tool=t; start(fctb_tool); }

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1 Answer

Sony 50 Wega LCD flashing red light


Hi

How many times is the red light flashing? The number of times the red led blinks means---


  • 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.
  • No blinks(Unit is dead) - Problem in the standby power section. Might check fuse, R607, Q601, IC601, R612 and VDR601 (should show open).
Please do rate this solution as FixYa and revert for further assistance.

Thanks
Rylee

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Constant restarts after upgrading memory to 512 on 300 gateway


The first place i would look -- check the new memory, make sure its the correct type and voltage for your motherboard. Next, check to make sure your ram are both the same speed, voltage , etc. some motherboards are picky about memory types and some require that paired memory be installed.
Reseat (remove and replace) the memory in it's slot, poorly seated memory can cause restarts or no-starts. try these and post again here if you need further assistance.
Regards

Mar 28, 2009 | Gateway 300 C PC Desktop

1 Answer

Gateway computer placed in standby mode and now will not come on.


Hi again,

It would seem you posted twice.

FixYa is a community of volunteer techs that provide repair solutions. It is not affiliated with any particular brand or manufacturer. A number of its members though are from the Philippines.

Pls post back the brand and model of your laptop and a short description as to what is probably wrong with it. You could also include your general location in Metro Manila as some are likewise in the same general area.

Hope this be of initial help/idea. Pls post back as requested, how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

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