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SERVICE MANUAL (BSV-4251 BSV-4251A )
Service Manual
MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE
BSV-4251/4251A RD(1) 00 03/10/23 1/75
SERVICE MANUAL (BSV-4251 BSV-4251A )
CONTENTS
SPECIFICATION ......................................................... 4
CONTROL DESCRIPTIONS .......................................... 7
OPTIONS EXTRAS .................................................... 9
REMOTE CONTROL BUTTONS .................................... 10
DISPLAY CELL DEFECT SPECIFICATION ...................... 12
BLOCK & WIRING DIAGRAM .......................................14
MODULE FUNCTION & DEFINITION ............................. 16
MODULE BASIC CONFIGURATION ...............................17
VSC BOARD PIN CONFIGURATION .............................. 18
OSD MENU (FACTORY)............................................... 21
DESCRIPTION OF VSC FUNCTIONS ............................. 32
CIRCUIT OPERATION & WAVEFORM............................. 34
MODULE SUPPLY VOLTAGE SEQUENCE ...................... 41
VSC & PSU POWER SEQUENCE ................................... 42
VOLTAGE & W/B ADJUSTMENT.................................... 44
SAFETY PRECAUTIONS ................................................49
MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE
BSV-4251/4251A RD(1) 00 03/10/23 2/75
SERVICE MANUAL (BSV-4251 BSV-4251A )
(MODULE USE AND CONSIDERATIONS IN SERVICING)
TROUBLESHOOTING..................................................... 53
IMAGE STICKING CHARACTERISTICS ........................... 64
ISM MODE.................................................................... 66
SCHEMATIC &PRINTED CIRCUIT BOARD &EXPLODE VIEW ......... 67
EXPLODED VIEW PARTS LIST ....................................... 69
REPLACMENT PARTS LIST ............................................ 71
EXPLODE VIEW ............................................................ 75
MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE
BSV-4251/4251A RD(1) 00 03/10/23 3/75
SERVICE MANUAL (BSV-4251 BSV-4251A )
SPECIFICATIONS
Note : Specification and others are subject to change without notice for improvement.