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637078334342678SHR


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                     For Authorised Service Agents Only
                                                                             Ref No:    637078334342678SHR

                                                                             Date:           14/10/2009
     TECHNICAL INFORMATION                                                             Created by
                                                                               Panasonic UK - Service Group

Document Category:           Knowledge Base


Subject:                     TUNING PROBLEM

Model(s) Affected:           DMR-EX75EB       DMR-EX85EB      DMR-EZ25EB

Problem / Issue              All functions are Ok apart from there is no FREEVIEW stations found.

                             During a tuning scan, only analogue stations are found but no FREEVIEW
                             stations

Solution:                    Check freeview PCB 1.8v rail for excessive ripple using an oscilloscope.
                             C1533 (680uF 6.8v ) on output of IC1508 can go leaky and cause this fault
                             C1533 is located on the top side of main PCB and hidden under the digital board.
                             Part no: F2A0J681A550
                             See Below




            Confidential                            Page 1            637078334342678SHRREV1



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