Question about Samsung PS-42C7HD 42 in. HD-Ready Plasma Television

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Will not power up

Hi, I have the above model, the power was cut for a moment ( less then 10 seconds ) and when the power was turned back on at the outlet the TV On/Off button on the front of the unit will not power up and only flashers blue

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Unplug the set for 30 minutes, plug it back in and see if it works.

Posted on Jul 03, 2008

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Posted on Jan 02, 2017

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2 Answers

No display after a few seconds! sound continues.


The solution was an INVERTER BOARD!

I couldn't see away to say I'd found the answer myself so had to create a second persona!

Mar 25, 2016 | Toshiba 32XV555DB 32 in. LCD TV

1 Answer

My toshiba 40sl412u turns on for a second then off


You more than likely have faulty capacitors on the power board. the caps won't let the power build up.

the general steps are
  1. unplug your tv.
  2. lay it glass side down on a soft thick blanket to protect the glass.
  3. remove the rear panel.
  4. identify the board with the power connector.
  5. remove it.
  6. find replacements for the electrolytic caps, the cylinders looking ones.
  7. unsoldier, then resoldier the caps.
  8. put the TV back together
This will generally cost $10 for the caps and less than $50 for the soldiering equipment. You tube has a vast number of videos on this.

a tv repair shop locally should cost less than $100. should be even less if you remove the board and bring it to them. there are companies that you can send the board in and they will repair and send it back.

Mind you $100 is cheep VS a new tv. I replaced the caps in mine for 10 bucks and a few hours of time, but I'm a highly qualified electronics repair tech.

Feb 09, 2014 | Toshiba 40SL412U LCD TV

1 Answer

Video works/disappeards intermittantly.


Hi Curtis

You`ve mention Capacitor, are you referring with the TV or the PC?

Jan 19, 2014 | Vizio VP322 32 in. Plasma TV

1 Answer

My Sharp 32 inc turn off suddenly, power green light turn to red, went turn on again screen ok for 5 to 10 second and start blink 3 time and screen turn off and power light change back to red. What...


sounds like something is shorting and the safety on the psu is kicking in.is the backlight behind your screen flickering prior to it cutting out. if so sunds like a cft has gone faulty. can be fixed though

Jun 08, 2011 | Sharp Aquos LC-46D62U 46 in. LCD HDTV

1 Answer

Hi I have a Sony Bravia KLV-40S200A which wont turn on. The standby button flashes five times then pauses for about 4 seconds then flashes again. Any ideas?


I had a similar problem with my 42 Inch Philips 42PLF5432D/37 LCD HD TV. It would turn on but then shut back off after about 10 seconds. Then it wouldn't turn on at all. The problem was a bad capacitor. Several bad capacitors. They are inexpensive and fairly easy to replace if you don't mind digging around in the back of your set and soldering some new ones on your Power Supply Board. Or take the less inexpensive route and look for a whole new Power Supply Board. Good luck. Hope this helps.

Dec 08, 2010 | Sony BRAVIA KDL-40S2010 40 in. LCD...

1 Answer

Tv desn't turn on,power light just flashes ten times and then stops and then again


Error Indication Information
Error No. Error Information ERROR DESCRIPTION LAMP LED OSD LAMP OFF
(Note 3) (Note 4)
POWER LED TEMP LED
Note:
1.When any of the above errors has occurred, the LED will flash as shown above every 5 seconds.
2.When two or more errors have occurred at the same time, the LED will light up or flash as shown above, and then
change to another every 5 seconds in turn.
3.Warning OSD appears when the Air Filter is clogged 90%, accumulated operation time of the Lamp reaches 5000 hours,
or accumulated operation time of the Air Filter reaches 400 hours.
4.LAMP OFF: The LED will flash right after the Lamp goes off.
5.IC2301 is mounted on LCD Main C.B.A. which is included in the Projection Unit.
6.IC6001 is mounted on TV Main C.B.A.
Clogged air filter
more than 90%
15)
16)
17)
18)
1)
2)
3)
4)
5)
6)
7)
11)
8)
9)
10)
12)
13)
14)
- flashes 5 times -
every 5 seconds
IC2301(pin82) detects the clogged air filter, then indicates the
error when the air filter is clogged 90%.
Front Fan stop or
Lamp Fan stop
flashes orange
once every
5 seconds
- -
IC2301(pin12) detects the Front FAN stop or Lamp
FAN stop, then indicates the error when the Front FAN
or Lamp FAN is stopped.
Lamp Cover open
Temperature Sensor
short or open
flashes orange
twice every
5 seconds
flashes orange
3 times every
5 seconds
flashes green for
140 seconds.
flashing red for
60 seconds.
light up red.
flashes once
every 5 seconds
flashes once
every 5 seconds
flashes red for
10 minutes
flashes once
every 5 seconds
-
-
-
-
Abnormal
Temperature
flashes twice
every 5 seconds
flashes twice
every 5 seconds
- -
Request for Lamp
Replacement - - lights up
Power Ballast Error
(abnormal
Lamp voltage)
- -
flashes 3 times
every 5 seconds
Power Ballast Error
(abnormal
temperature)
- -
flashes 4 times
every 5 seconds
Power Ballast Error
(other causes) - -
- -
Request for Filter
Cleaning -
Abnormal Voltage
on 16 V line of
LCD Main C.B.A.
-
flashes twice
every 5 seconds
flashes twice
every 5 seconds
Abnormal Voltage
on 14 V line of
LCD Main C.B.A.
-
flashes 3 times
every 5 seconds
flashes 3 times
every 5 seconds
Abnormal Voltage
on 7 V line of
LCD Main C.B.A.
-
flashes 4 times
every 5 seconds
flashes 4 times
every 5 seconds
IC2301(pin76) detects the Lamp Cover Unit condition
(open or close), then indicates the error when the
Lamp Cover Unit is open.
IC6001(pin85) detects the Duct FAN stop, then
indicates the error when the Duct FAN is stopped.
IC2301(pin74 and 75) detects open or short of the Temperature
Sensor (R2911) on Front Thermistor C.B.A., then indicates the
error when Temperature Sensor is open or shorted.
(The error is not detected for 1 minute after Lamp ON.)
IC2301(pin74 and 75) detects the temperature attached near
the Front FAN by the Temperature Sensor (R2911) on Front
Thermistor C.B.A., then indicates the error when the
temperature becomes more than 43 C (109 F).
(The error is not detected for 1 minute after Lamp ON.)
IC6001(pin86 and 87) detects open or short of the
Temperature Sensor (R2901) on Lamp Thermistor C.B.A.,
then indicates the error when Temperature Sensor is open or
shorted.
(The error is not detected for 4 minutes after Lamp ON.)
IC2301(pin74 and 75) detects the temperature attached near
the Lamp by the Temperature Sensor (R2901) on Lamp
Thermistor C.B.A., then indicates the error when the
temperature becomes more than 60 C (140 F).
(The error is not detected for 4 minutes after Lamp ON.)
IC2301(pin11) detects the error of LCD Power C.B.A.,
then indicates the error when the temperature fuse
(117 C)(243 F) in LCD Power C.B.A. is open.
IC2301(pin11) detects the error of LCD Power C.B.A. and Lamp,
then indicates the error when an inner malfunction of LCD Power
C.B.A. occurs, the Lamp voltage becomes more than 130V or
less than 30V, Lamp current becomes more than 5A, or the Lamp
is cracked.
IC2301(pin11) detects the error of the Lamp, then indicates the
error when the Lamp is short-circuit.
IC2301(pin48) detects +16V line voltage on LCD Main
C.B.A., then indicates the error when the voltage
becomes less than +13V.
IC2301(pin47) detects +14V line voltage on LCD Main
C.B.A., then indicates the error when the voltage
becomes less than +11V.
IC2301(pin45) detects +7V line voltage on LCD Main
C.B.A., then indicates the error when the voltage
becomes less than +5.7V.
IC2301(pin44) detects +3.3V line voltage on LCD Main
C.B.A., then indicates the error when the voltage
becomes less than +2.5V.
flashes 3 times
every 5 seconds
flashes 4 times
every 5 seconds
Abnormal Voltage
on 3.3 V line of
LCD Main C.B.A.
-
-
-
- flashes 5 times
every 5 seconds
Forced cooling
The failure of Lamp
light up
-
Temperature Sensor
short or open
-
-
Abnormal
Temperature
Duct Fan stop -
When accumulated operation time of the the Lamp reaches
5000 hours, OSD (replacing the Lamp) appears on the screen.
Note: The Lamp time is stored in EEPROM (IC2305).
When accumulated operation time of the Air Filter reaches 400
hours, OSD (cleaning the Air Filter) appears on the screen.
Note: The Filter time is stored in EEPROM (IC2305).
During forced cooling, this indication is indicated.
IC2301 (pin11) detects the failure of light up processing of
the Lamp, then the POWER LED is changed as follows.
1) POWER LED flashes green for 140 seconds (while turning on).
2) POWER LED flashes red for 60 seconds (while cooling).
3) POWER LED lights up red (standby).
Note: If the Lamp will not light after attempting turning on the
power 2 or 3 times, the Lamp, the LCD Power C.B.A. or the
LCD Main C.B.A. may be defective.
Error Symptom Problem Possible Solutio

May 30, 2010 | Panasonic Viera TH-50PX80U Plasma TV

1 Answer

Remote


Several websites sell remotes that are compatible with your TV:
1) REMOTES.COM (1-800-REMOTES)
2) UNIVERSAL-REMOTE.NET
3) ONEFORALL.COM
The last 2 websites above sell remotes that are inexpensive.

You can also buy One for All universal remotes at department stores, I own a One for All universal remote (model URC-4220) at Walmart for less than 10 dollars, which is compatible with your TV.
Hope this info helps you out. Please take a moment to rate this solution , by using the rating system below. Thanks.

Jul 27, 2008 | Protron PLTV-32 Television

3 Answers

Samsung 50" plasma won't turn on


Same problem.damn inferior product.I knew I shouldve stick with sony.Ive had mine for 7 months and according to the guy I bought it from hes had it almost a year.No power

May 20, 2008 | Samsung PS42P2S 42 in. Plasma Television

1 Answer

SCREEN AND POWER CUT


maybe the inverter board for the screen issue- the power issue seems to be LG has power board design flaw- basically last time I looked the power board is manufactured NOT by LG but by H&E ...who designs this stuff??

Dec 15, 2007 | LG 42LC2D 42 in. LCD HDTV

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