REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Monday, 25 February 2019

PANASONIC - TH42PX75U - TH50PX75U STANDBY LED BLINKS 10 TIMES

PANASONIC - TH42PX75U - TH50PX75U STANDBY LED BLINKS 10 TIMES



APPLICABLE TO - PANASONIC - TH-42PX75U - TH-42PX77U - TH-50PX75U - TH-50PX77U [PLASMA]

Standby light blinks 10 times before the Power Switch is On.

Trouble Mode: SUB 5V SOS, Main 3.3vSOS, DTV 9VSOS, Tuner Power SOS.
Defective Board:  P, A Board.

Disconnect Power prior to repair.

  • Disconnect connectors A5, A6 & A7 on 'A' board, and plug the TV into AC line.
  • Does the TV turn On by itself with a white screen and the Power LED is Off?
  • If yes; 'a' board is fauty. 
  • If No; 'P' board is faulty.
LED BLINKS 10 TIMES AFTER POWER SWITCH IS ON

Disconnect AC power.  To avoid potential shock from the Vsus voltage, discharge the connectors SC2 or SS11 before reconnecting them into their respective socket.  The reference number to the sustain data connector is different in some of the models.

Trouble Mode:  SUB 5V SOS, MAIN 3.3VSOS, DTV 9VSOS, Tuner Power SOS.
defective Board:  P, A, AC, SS board.
  1. Disconnect connectors A5, A6 & A7 on the 'A' board and plug the TV into AC line.
  2. Does the TV turn On by itself with a white screen  and the power LED is Off?  
  3. If yes; 'A' board is faulty.
  4. If No; Unplug the TV and connect CN A5, CN A6 & CN A7.  Disconnect CN SC2, and SC20 of SC board.  Plug the unit into AC mains.
  5. does the power LED stay On when tv is turned On. 
  6. If yes; SC board is faulty.
  7. If No; 
  8. Unplug the TV, and reconnect CN SC2 & SC20 of the SC board.  Disconnect CN SS11, SS23 & SS34 of 'SS' board and CN P12 of the 'P' board.  Install the jumper form SS34 between pins 8 & 10 of CN P12. Plug the Uint into AC power.
  9. Does the power LED stay On, when the TV is turned On?
  10. If yes; SS baord is faulty.
  11. If No; P board is faulty.