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S                                         CONFIDENTIAL                                                  CSV-1
Sony Service Company
National Technical Services               Service Bulletin
A Division of Sony Electronics Inc.
Park Ridge, New Jersey 07656              TV Products

Model:          KP-53HS10, KP-53XBR300, KP-61HS10                                  No.      442R3
                KP-61XBR300

Subject: Picture Blinks Or Jitters Intermittently.                                 Date: October 25, 2001
         "VIDEO 5" And "DTV FORMAT: 480p" OR "DTV
         FORMAT: 1080i" Is Displayed. Symptoms
         Occur When Progressive-scan DVDs Or
         Certain Brand DTV Receivers Are Connected
         To The Video 5 Input Using Component Video


Symptom:
(1355)                 Intermittent loss of sync, and picture distortion, with component video and 1080i
                       format. Picture may blink or jitter when playing progressive-scan DVDs. Both these
                       symptoms may be observed when using the Video-5 input.

Cause:                 Bi-Level sync signal and large DC bounce during white to black scene causes sync
                       separator circuit to become unstable.

Solution:              If the customer should complain of the above symptom please implement the
                       following circuit changes on the "A" Board.

Note:                  This change was not implemented in production on any of the models above.
                       Starting in July 2000 new boards will have these changes.

                       This revision supercedes the previous bulletin. The previous service bulletin required
                       the change of resistors R600 and R698; this is no longer required.

      Ref                 Already Installed                     Add in Parallel             Part Number

      C693                0.47uf/16v                            22uf/50v                    1-126-965-11

      C694                0.47uf/16v                            22uf/50v                    1-126-965-11

      C696                0.47uf/16v                            22uf/50v                    1-126-965-11

      R600                470 Ohm chip (original value)         Remove R600                 No part
                          1K chip (if previous bulletin         and replace with            needed
                          #442 was implemented).                solder bridge.

      Q553                Remove part

      R698                Remove part (p84 E-8)


                                              Continue on next page


Reference: SBR9911                                                                                    PRINTED IN USA
TV Products Service Bulletin No. 442R3


      Ref               Already Installed                   Change To               Part Number

     C638                0.47UF (p86 E-3)                    0.1uf/25v              1-164-004-11

     Q552               Remove (p84 E-8)

                                                           Add 470-ohm              1-216-041-00
                                                            1/10 W chip
                                                          resistor across
                                                           pads of Q552
                                                              (Base to
                                                              Emitter).


Notes:           Capacitors C693, 694, 696 can be applied in parallel with new caps. See Fig 2
                 Part location as per S/M KP-53HS10



Change the circuits below as stated on previous page on the "A" Board




                             Remove R600 and replace
                             with Solder Bridge




                                              Remove
                                              Q553




       Fig 1Location E-9 on A Board (page 84 of KP-53HS10 service manual)
TV Products Service Bulletin No. 442R3




                                            J805




                                    Negative side
                                    of capacitors




                                Add Capacitors across
                                C693, C694, C696




                 Fig 2 Board Location J-10 (page 86 of KP-53HS10)




                         Q552




    Fig 3    Board location Q552 E-8 (p84) C638 E-8 (p86) S/M KP-53HS10

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