Sharp 21V-FW100S - User Manual

SERVICE MANUAL
21V-FW100S
COLOUR TELEVISION
Chassis No. GA6
21V-FW100S
In the interests of user safety (Required by safety regulations in some countries) the set should be restored to its original
condition and only parts indentical to those specified should be used.
S9811721VFW100S
MODEL
ELECTRICAL SPECIFICATIONS
Chassis No. GA6
CONTENTS
? IMPORTANT SERVICE SAFETY PRECAUTION ........................................................................................... ........ 1-1
Page
? LOCATION OF USER’S CONTROL ...................................................................................................................... 2-1
? INSTALLATION AND SERVICE INSTRUCTIO NS ................................................................................................. 3-1
? SERVICE MODE ..................................................................................................................................................... 4-1
? ADJUSTMENT METHOD ........................................................................................................................................ 5-1
? WAVEFORMS ......................................................................................................................................................... 6-1
? CHASSIS LAYOUT ................................................................................................................................................. 7-1
? BLOCK DIAGRAM .................................................................................................................................................. 8-1
? DESCRIPTION OF SCHEMATIC DIAGRAM .......................................................................................................... 9-1
? SCHEMATIC DIAGRAMS ......................................................................................................................................10-1
? PRINTED WIRING BOARD ASSEMBLIES ........................................................................................................... 11-1
? Parts Guide
POWER INPUT............................AC 110-220 V, 50/60 Hz
POWER RATING .....................................................85W
PICTURE SIZE .............................1,239 cm
2
(192sq inch)
CONVERGENCE ............................................. Magnetic
SWEEP DEFLECTION .................................. .. Magnetic
FOCUS ........................................................ Electrostatic
INTERMEDIATE FREQUENCIES
Picture IF Carrier Frequency ...................... 45.75 MHz
Sound IF Carrier Frequency ...................... 41.25 MHz
Color Sub-Carrier Frequency ......................42.17 MHz
(Nominal)
AUDIO POWER
OUTPUT RATING... ...................... 3.0 W(RMS) x 2pcs
SPEAKER
SIZE ........................................................ 2” X 3.5”, 2pcs
VOICE COIL IMPEDANCE .................16 ohm at 400 Hz
ANTENNA INPUT IMPEDANCE
VHF/UHF ........................................75 ohm Unbalanced
TUNING RANGES
VHF-Channels ................................................. 2 thru 13
UHF-Channels ................................................14 thru 69
CATV Channels ............................................. 1 thru 125
(EIA, Channel Plan U.S.A.)
Specifications are subject to change without
prior notice.
SHARP CORPORATION
www.electronicsrepair.net

Summary

IMPORTANT SERVICE SAFETY PRECAUTIONS

General Warnings and High Voltage Safety

Essential safety warnings, X-radiation limits, and high voltage handling procedures.

Pre-Return Checks and Safety Notices

Safety checks before returning the receiver and notices on replacement parts.

LOCATION OF USERS CONTROLS

Front Panel Controls and Indicators

Identifies user controls on the front panel, including power and menu buttons.

Rear Panel Connections

Details the various input and output terminals located on the rear.

INSTALLATION AND SERVICE INSTRUCTIONS

Circuit Protection and X-Radiation Testing

Procedures for testing the receiver's circuit protection and X-radiation safeguards.

High Voltage Check Procedure

Steps for accurately measuring and verifying the high voltage output.

SERVICE MODE

Service Mode Entry and Navigation

How to enter service mode, its different modes, and cancellation.

Memory Map Data Structure

Overview of the data organization within the service mode memory map.

ADJUSTMENT METHOD

Option and Bus Setup Procedures

Details for setting up options and bus configurations for adjustments.

Key Picture and Color Adjustments

Procedures for adjusting H-Position, V-Size, White Balance, Sub-Picture, Sub-Bright, etc.

System Checks and Audio Adjustments

Covers X-Ray protection confirmation, High Voltage, MS Level, and Separation adjustments.

DIAGNOSTIC TOOLS AND CIRCUITRY

Waveform Examples and Conditions

Visual examples of waveforms and conditions for measurement.

Chassis Layout and Block Diagrams

Physical component placement and functional block diagrams.

Schematic Diagrams and PWB Layouts

Detailed circuit diagrams and printed wiring board component layouts.

PARTS GUIDE AND INDEX

Component Identification and Ordering

Lists all replaceable parts with codes, descriptions, and ranks.

Document Index

Alphabetical listing of topics for quick reference.

Sharp 21V-FW100S Specifications

General

Brand	Sharp
Model	21V-FW100S
Category	TV
Language	English