Service Manuals, User Guides, Schematic Diagrams or docs for : Sony sony tv bulletins sony tv bulletins TVP0490

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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:          KV-27FS12, KV-27FS16, KV-27FV16                                      No.     490R2
                 KV-32FS12, KV-32FS16

 Subject: Unit Turns ON by itself                                                     Date: July 5, 2001


 Symptom:
 (2173)              Two conditions which causes the unit to turn on by itself are:

                     1. If sleep timer is used, the set will turn on 256 minutes after the set was turned OFF.

                     2. Timer 2 only is set to turn ON TV and then OFF and the customer turns it OFF
                        before the timer does. Example: Set is set to come on at 7:00 AM and OFF at 8:00 AM.
                        Then the customer turns the TV OFF at 7:30 AM. The set will turn ON at 8:AM.

 SOLUTION: Software miss-operation was the cause of this symptom.
                        If the customer should complain about the symptom above the CPU, IC001 on the
                        MA Board should be replaced

                         Ref              Description              Part Number

                        IC001          M37280MR-114SP              8-759-827-83



 Note:                  This is an in home major repair procedure

                        Enter (Applied SB490) in the Service Description Field to insure
                        In-Home Major warranty reimbursement.

                        When replacing IC001 (52 pins) please use solder wick and a
                        soldering iron. Do not use a soldering gun.




                                                                                                    CN303 cannot be
                                                                                                    removed without
                                                                                                    unsoldering from
                                                                                                    either the MA or CA
MA Board                                                                                            Board
Can be slid out
from the rails.



 Reference: FPR-V1636                                                                                  PRINTED IN USA
TV Products Service Bulletin No. 490R2


                 MA Board is easily removed from the chassis by removing the connectors CN302,
                 CN304, CN305, CN309, CN001, CN002, CN003, CN004, CN005, and CN006, then
                 slide the board towards you.
                 Connector CN303 is a soldered in connector on both ends. The board can be
                 serviced without removing this CN303 since the cable is long enough to permit
                 removal of IC001.




                       IC001




                 After removing the connectors the MA Board can be slid out of the rail without any
                 problem. The cable for CN303 is long enough to allow the IC001 to be removed
                 using solder wick and a soldering iron to remove the solder from the 64 pin IC.



                   Model                 Software needs to be corrected between the
                                                 serial number range below.


               KV-27FS12              Less then 61,040

               KV-27FS16              Less then 29,602

               KV-27FV16              Less then 22,705r

               KV-32FS12              Less then 28,463

               KV-32FS16              Less then 12,216

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