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Service Manual
1. Precautions and notices
BEFORE SERVICING THE LCD TV, READ THE SAFETY PRECAUTIONS IN
THIS MANUAL.
USE ONLY MANUFACTURER SPECIFIED REPLACEMENT PARTS WHEN
SERVICING.
USE OF NON-AUTHORIZED PARTS WILL VOID THE MANUFACTURE'S
WARRANTY
Proper service and repair is important to the safe, reliable operation of all Hisense
Equipment. The service procedures recommended by Hisense and described in this
Service Guide are effective methods of performing service operations. Some of these
service operations require the use of tools specially designed for the purpose. The special
tools should be used when and as recommended.
It is important to note that this manual contains various CAUTIONS and NOTICES
which should be carefully read in order to minimize the risk of personal injury to service
personnel. The possibility exists that improper service methods may damage the
equipment and pose risk of personal injury
. It is also important to understand that these CAUTIONS and NOTICES ARE NOT
EXHAUSTIVE. Service should only be performed by an experienced electronics
Summary of Contents for 50E77HQ
Page 2: ...2 REVISION HISTORY Version Revise content Reviser Date V1 00 First issued Wangyue 2021 11 19...
Page 11: ...11...
Page 17: ...17 3 Factory Service OSD Menu and Adjustment 3 1 Remote Control...
Page 18: ...18...
Page 25: ...25 Firgure 1 Upgrading software Firgure 1...
Page 27: ...27 Click choose bootloader image and the click upgrade Then wait the upgrade finished...
Page 36: ...36 6 Signals Block Diagram power assign schematic diagram...
Page 37: ...37...
Page 38: ...38...