Service Manuals, User Guides, Schematic Diagrams or docs for : panasonic LCD TX-47AS800 MQMSH0011DG151214REV1_AX800_Series_SOS_One_Flash

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MQMSH0011DG151214REV1_AX800_Series_SOS_One_Flash


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Confidential

                    For Authorised Service Agents Only                              Ref No: MQMSH0011DG151214REV1


                                 SERVICE HINT
 A     BG            CY       E         FL              I      LT    MD        NL     S            TR            Date
 AL    BIH           CZ       EST       GB            IRL      LV    MK         P     SK           UA         15/12/2014
AND    BY            D        F         GR             IS      M     MNE       PL     SLO              Country Reported
 B     CH            DK       FIN        H              L      MC    N         RO     SRB                  Europe
Product Category:             LCD IDTV / LCD TV

Subject:                      SOS one flash


Model(s) Affected:            TX-47/55/60AS802B             TX-47ASW804
                              TX-47/55/60AS800E             TX-60ASR800
                              TX-47/55/60AS800T

Symptom /                 The set does not power up, and the LED gives a SOS 1 flash indication.
                          There is a possibility that the issue may be due to a problem with the LCD panel, causing the
Cause:
                          set to shut down into a protective mode.
Remedy / This Service Hint applies to serial numbers prior to: N*-444****
Method:
                If, after following the troubleshooting information given in the Service Manual to exclude other possible
                causes, it is determine the panel is faulty, order and replace the LCD panel.

  Troubleshooting hints/tips:
     1. The customer reports that the set has randomly "no operation, and the red LED is blinking".

      2. The TV works normally, however there is a record of protection mode SOS1 in the service menu.
         (See Fig. 1 for an example)

      3. The TV is in protection mode with SOS 1 flash.
         For test purposes only, to confirm if the symptom is caused by a problem with the panel it is possible to
         disable this particular protection mode:
            i. Solder a temporary link between pin 2 and pin 3 of Q7716 on the LD-PCB (see Fig. 2).
            ii. Power on the set and, using a white test pattern, a dark horizontal stripe will be seen
                 (See Fig. 3 for an example of the phenomenon)
         Note: Remember to remove the temporary link *before* continuing with the repair.


  Replacement Part Numbers:

               Screen Size         Part Number
                 47 Inch         L5EDDYY00598
                 55 Inch         L5EDDYY00600
                 60 Inch         L5EDDYY00604




  Fig. 1
                                             Fig. 2                                  Fig. 3



                                                                                                             Document No: MQM_SH
Panasonic                                                        1 of 1                                         Rev: 2.00 DG140612



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