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SONY KV32TS36 Is connected but not within the hearing OR CLICK. Test the power supply and delivery DC smoothly

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Philips/Magnavox 27TS54 C101/chassis 27B800-7562. Originally would not turn on at all. Replaced C506 (totally scorched) as other posters recommended. Now turns on but only bright white horizontal...


check for power supply for normal dc voltage..try resoldering the vertical output ic or test the vertical output ic dc supply..if there is..try finding some loose connection to the deflection circuits

Jul 13, 2011 | Philips TS2768C 27" TV

4 Answers

Sony KV-32FS12 32" TV


This condition be directed us toward pin modulator transistor Q504 which may shorted. Parts necessary to fix this unit may be D501, D504 and Q504.
Check this site if you need the schematic diagram: //http://www.eserviceinfo.com/downloadsm/19977/SONY_KV32FS16.html
Good Luck.

Jan 28, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Sony Trinitron stayby light blinks 9 times. Unit


Theirs a problem in CRT board,the inner part of your TV,at the power supply section.Try to check fuse at power supply section.there are 2 fuse in the board.The AC fuse and the DC fuse check the DC fuse.

Jul 01, 2011 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Light blinks three times on my sony wega tv model #kv-32hs500 but will not come on .


Hello
Three times blinking denotes that there is some overvoltage in the secondary DC supply rail inside your TV. It is called Over Voltage Protection [OVP]. Due to this fault as soon as the set is switched on, it goes to standby state and the front LED blinks tree times, and won't come up again.

It may be due to power supply regulator section fault inside your TV. To find out you have to open the back cover of the TV. As high as 32KVDC [32,000 volts DC], points are there inside your TV, while it is working, all care should be taken before open it. Even though the TV is switched off, the final anode of the picture tube will have a charge upto this voltage for sometime and it is dangerous. So be care.

After opening the TV, locate the power regulator section. It can be easly located, that the AC input goes to that section, after the switch connection. You have to pull out the printed circuit board and should keep it upside down for repair work. During this time, sometimes you may have to unplug some plugin connections from the board, and keep it marked, so that you have to refit it there later. You must have some concept of soldering and more patience to do this work.

After the board has been pulled out, loate if there is any soldering loose contact to the regulator Ic or its nearby components. As they will heatup during working, continous heat up and cooling may make some of the solderings, and it is normal in practice. As it is very difficult to locate the loose solderings by naked eye, resolder all suspected points with applying a little bit of extra solder. Never make any short between them while soldering. Normally this will rectify the problem. If it does not help, replace the power regulator with same type and number; [ Normally in Sony sets they uses STR type regulators on power side], and it is a very stable and High Accurate device, and should be replaced with the same type and number.

Check if now the secondary DC voltage at the secondary voltage rail of your Tv. Now it will be zero due to overvotage shutoff. Locate the pin to which the DC power goes into the LOT [Line Output Transformer], and make a small break on its print that carries supply to it. Be sure to make a small break, as we have to rejoin it after the fault detection. Connect a 100W filament type bulb between the DC supply Rail and to the Negative. Switch on the set. The bulb will glow, and take the votage across its filament. It should be between 125 and 130VDC, for 32" Sony TVs. if it is found abnormal, you can make sure that power regulator section has some trouble in it. Three blinks shows that symptom in Sony TVs. Ok.

Oct 31, 2010 | Sony Standard (CRT) Televisions

2 Answers

I have a Sony Wega KV-34HS420 TV that takes several tries to turn on. When I push the power button or remote power on I hear the normal click and the sound comes on for 3-5 seconds but then I hear a second...


Since the set appears to "recover", it suggests either a poor solder connection or bad cap somewhere in the power supply. The 7 blinks indicate the problem circuit is in the horizontal area. Check the regulator (STRxxxx) IC in the power supply. If you do not have experience working with TVs, please refer this repair to a shop. The regulator IC costs around $25.

Dan

Nov 16, 2009 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

Will not power on, makes a click noise only


if you dont know take your tv to w/shop, let the tech test the output of that power supply.
he has to test the following, switch contacts,power transistor,diodes, and resistors less than 100 ohms.
your set will be okay again.
if you want it to be move perfect test capacitors as well, and change all electrolitic, on the power supply. this will make your tv stay longger and perfect.

Apr 29, 2009 | Sony Standard (CRT) Televisions

1 Answer

Where to hook up com neg. lead to check dc volts on tv????


Most TVs today use a "hot-chassis" design and a switch-mode power supply. You should use an isolation transformer when doing any service work on a TV. This helps protect you and your test equipment, and can prevent accidental damage to the TV by grounding parts to the wrong point.

Hot-chassis sets use two different grounds. The power supplies have one ground reference for the primary side (hot ground) and a different point for the secondary (cold ground). The point you pick will depend on what part of the TV you're measuring.

If you are troubleshooting a dead set and working on the primary side of the power supply, use the negative lead of the large electrolytic capacitor you'll find near the AC input connection. There's almost always a bridge rectifier and filter cap (300 to 400 uF range, 180 to 250 volt rating, so physically pretty large) in that area to make the raw DC. That's a guaranteed good hot ground. Sometimes the set will have a labeled hot ground point right on the circuit board for you.

For measurements on the secondary (output) side of the supply, almost any shield can is ground. The tuner cover is a good choice.

Jan 29, 2009 | Sanyo DS25390 TV

1 Answer

Sony 2167 No power on


I have not worked on your particular model. But, I have serviced many TV sets over the years. My answer will ge generic.

Check all the capacitors in the horizontal output stage and power supply areas for high ESR. All the caps that are out of spec must be changed.

The high voltage multiplier & flyback can also cause the fault you are having.

You have to consider that the DC voltages are not the only important spec that has to be met. There are also many power drive signals that work with reactive devices. If there is any defect in the critical areas there will be failures.

Jerry G.


Nov 26, 2008 | Sony FD Trinitron WEGA KV-21CL10 21" TV

1 Answer

NO Signal KV32fv26 Sony Trinitron


I think your problem is in tuner stage.

1. Check 32V dc available on BT connection on tuner.
2.If 32V available on BT,connect dc meter and put the unit on auto search and check the BT pin on tuner.The BT voltage will decrease and increase while it tunes.
3.If nothing stored after programming replace tuner.


Good luck
Dals123

Oct 14, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Wont turn on


Hello zang,

 

This denotes a problem with the switching power supply or the high voltage power supply. what is happening is the safety relay is being actuated by the shutdown circuit. Any number of things can cause this proble but more then likely the problem is in the high voltage power supply section and or its associative circuitry. The switching power supply and the high voltages power supply have very dangerous voltages and I would not suggest that you work on the TV set unless you do have a background in electronics. If you do not I would suggest that you take the TV set to an electronics shop for repairs. If you do have a background in electronics, you will need the following items:

 

1) A schematic diagram (to know where voltage and signal test points are located and to have a reference of the levels.

 

2) A multimeter (to measure the DC voltage levels on the TV Set)

 

3) An oscilloscope (to measuer the AC voltage and signal levels in the TV set and compair them to the values in the schematic)

 

4) A signal generator (to generate a reference signal for troubleshooting)

 

I hope this helps,

 

Shuttle83

 

Oct 11, 2007 | Panasonic CT-32HX41 32" TV

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