Troubleshooting Block Diagrams - Hitachi 51SWX20B Service Manual

Tr oubleshooting B lock Diagrams
SECTION (1) POWER SUPPLY DIAGRAMS:
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+6V L o V oltage R egulation Circuit Diagram ------------------------------------------------------- 113
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Power On Relay Controls Circuit Diagram ---------------------------------------------------------- 114
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Lo w Vo ltage Shut Down Circuit Diagram ----------------------------------------------------------- 115
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SW +115V Hi V oltage R egulation Circuit Diagram ----------------------------------------------- 116
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Additional H i Vo ltage Shut Down Circuit Diagram ------------------------------------------------ 117
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Pr otect (Deflection) H i Vo lt Shut Down Circuit Diagram ---------------------------------------- 118
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LED s (Visual Trouble Shooting) Lo Voltage Power Supply Circuit Diagram ------------------ 119
SECTION (2) MICROPROCESSOR INFORMATION:
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Microprocessor DATA COM M UNICATION
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Microprocessor Sync Input Circuit Diagram ------------------------------------------------------------ 121
SECTION (3) VIDEO CIRCUIT INFORMATION:
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Video NTSC Circuit Diagram ------------------------------------------------------------------------------ 122
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Rainfores t I C Puls e Explanation -------------------------------------------------------------------------- 123
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Video Co mponent, OSD & NTSC Circuit Diagram ----------------------------------------------- 124
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AB L Circuit Diagram ------------------------------------------------------------------------------------------ 125
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AB L Sw itch (Black Side Bars) Circuit Diagram -------------------------------------------------------- 126
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DVI Input Circuit Diagram ----------------------------------------------------------------------------------- 127
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Audio Video M ute Circuit Diagram ----------------------------------------------------------------------- 128
SECTION (4) AUDIO CIRCUIT INFORMATION:
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Audio Main Terminal Circuit Diagram ------------------------------------------------------------------- 129
SECTION (5) DEFLECTION CIRCUIT:
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Horizontal Drive Circuit Diagram ------------------------------------------------------------------------- 130
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Sweep L oss Detection Circuit Diagram -------------------------------------------------------------------- 131
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Vertical Output Circuit Diagram -------------------------------------------------------------------------- 132
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Pincushion Circuit Diagram --------------------------------------------------------------------------------- 133
SECTION (6) DIGITAL CONVERGENCE CIRCUIT INFORMATION:
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Digital Convergence I nterconnect Circuit Diagram -------------------------------------------------- 134
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51" Overl ay Dimensions ------------------------------------------------------------------------------------ 135
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57" Overl ay Dimensions ------------------------------------------------------------------------------------ 136
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65" Overl ay Dimensions ------------------------------------------------------------------------------------ 137
Explanation ---------------------------------------- 120
112
DP27 DP27D
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