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PN50B450B1DXZA Fast Track Troubleshooting Manual
No Service Bulletins

Hot Item: Firmware version : ver.1021.1
Distorted Video: Use the internal - If customer turns unit off and back
test patterns in both the main board on,
(FE2) and the Logic board located . Loss of channels
within the service menu test patterns . the TV displays "Weak or no
to determine location of distorted signal"
video prior to removing the rear . the cable system's setting always
cover. Refer to GSPN changes from "HRC" to "STD" though
he set it to "HRC" before
- The problem happens at the region
where the cable system is "HRC" or
"IRC"
PN50B450B1DXZA Fast Track Troubleshooting Manual
PN50B450B1DXZA Fast Track Troubleshooting Manual
Support Sheet

To do list:
Option bytes should always be verified before and after the repair.
Quick links listed below for training, triage and Help.

Option Byte setting

Training
Plus One
http://my.plus1solutions.net/clientPortals/samsung/

Help
GSPN
http://service.samsungportal.com/EP/web/portal/jsp/EP_Default1.jsp