Hitachi 46UX50B Service Manual

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HITACHI meen
60UX54B/55K
50SBX70B
60SBX72B
AP73/74 Chassis
CONTENTS
SAFETY PRECAUTIONS ......... 0000s eee eee teen eee
SERVICING PRECAUTIONS .
TECHNICAL CAUTIONS
SPECIFICATIONS : 3 we
CIRCUIT PROTECTION ... 0.0... eee cece
GENERAL INFORMATION ........06 00. cee c eet eee
CUSTOMIZED PICTURE AND SOUND ADJUSTMENTS
CAUTIONS WHEN CONNECTING/DISCONNECTING THE HV CONNECTOR
SERVICE ADJUSTMENTS
TROUBLESHOOTING .......
PROTECTION CIRCUIT BLOCK DIAGRAM .
BASIC CIRCUIT DIAGRAM .......... 0. cece cee tee cette ee
PRINTED CIRCUIT BOARDS ......... 00 eect ttt eee
BLOCK DIAGRAM
WIRING DIAGRAM .
EXPLODED VIEW : z
REPLACEMENT PARTS LIST ..... 22... 6c ccc e ccc eeeeet eee eens
CAUTION: Before servicing this chassis, it is important that the service technician read the "Safety Precaution"
and "Product Safety Notices" in this service manual.
SAFETY NOTICE
USE ISOLATION TRANSFORMER WHEN SERVICING
Components having special safety characteristics are identified by a AX on the schematics and on the parts list in this
Service Data and its supplements and bulletins. Before servicing the chassis, it is important that the service technician
read and follow the "Safety Precautions" and "Product Safety Notices" in this Service Manual.
*For continued x-radiation protection, replace picture tube with original type of Hitachi approved equivalent type.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
PROJECTION COLOR TELEVISION
JULY 1997 HHEA-MANUFACTURING DIVISION