Text preview for : 637078334342678SHR.pdf part of panasonic 637078334342678SHR panasonic DVD DMR-EX85EB 637078334342678SHR.pdf
Back to : 637078334342678SHR.pdf | Home
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