Sharp 50NP4 Скачать руководство пользователя страница 1

Страница: 1 / 121

APRIL 2000

Models:

50NP4/60NP4

PROJECTION COLOR

TELEVISION

S/M: S01TM50/60//E

SERVICE MANUAL

CONTENTS

SAFETY PRECAUTIONS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SERVICING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
TECHNICAL CAUTIONS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SPECIFICATIONS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CIRCUIT PROTECTION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CAUTIONS WHEN CONNECTING/DISCONNECTING THE HV CONNECTOR . . . . . .12
GENERAL INFORMATION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
REMOTE CONTROL  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
CUSTOMIZED PICTURE AND SOUND ADJUSTMENTS  . . . . . . . . . . . . . . . . . . . . . .19
SERVICE ADJUSTMENTS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
ADJUSTMENT POINTS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
TROUBLESHOOTING  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
WAVEFORMS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
PRINTED CIRCUIT BOARDS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
WIRING DRAWING  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
BLOCK DIAGRAM  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
CIRCUIT SCHEMATICS DIAGRAM  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
EXPLODED VIEW  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
REPLACEMENT PARTS LIST  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

In the interest of user-safety (required by safety regulations in some countries), the set should be
restored to its original conditiion and only parts identical to those specified should be used.

CAUTION:

Before servicing this chassis, it is important that the service technician read the ÒSafety PrecautionÓ
and ÒProduct Safety NoticesÓ in this service manual.

SAFETY NOTICE

USE ISOLATION TRANSFORMER WHEN SERVICING

Components having special safety characteristics are identified by a 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 ÒSafety PrecautionsÓ and ÒProduct Safety NoticesÓ in this Service Manual.

SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE

SHARP CORPORATION

This document has bben published to be used for after
sales service only.
The contents are subject to change without notice.