Sharp 27J-S260

- 1 -
27J-S100/180/260
CJ27S10/26
SERVICE MANUAL
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 identical to those specified should be used.
COLOR TELEVISION
Chassis No. SN-71
Specifications are subject to change without prior
notice.
POWER INPUT............................................... 120 V AC 60 Hz
POWER RATING ............................................................ 126 W
PICTURE SIZE ...................................... 2,193cm2(340sq inch)
CONVERGENCE ........................................................ Magnetic
SWEEP DEFLECTION ............................................... Magnetic
FOCUS .......................................... Hi-Bi-Potential 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 ........................... 2.6W (at 10% distortion)
SPEAKER
SIZE ................................................................... 8cm(Round)
VOICE COIL IMPEDANCE .......................... 8ohm at 400 Hz
ANTENNA INPUT IMPEDANCE
VHF/UHF................................................75 ohm Unbalanced
TUNING RANGES
VHF-Channels ........................................................... 2thru 13
UHF-Channels ........................................................ 14thru 69
CATV Channels .......................................................1thru 125
............................................................... (EIA, Channel Plan)
ELECTRICAL SPECIFICATIONS
CONTENTS
Page
» ELECTRICAL SPECIFICATIONS ............................................................................................. 1
» IMPORTANT SERVICE SAFETY PRECAUTION ..................................................................... 2
» LOCATION OF USER'S CONTROL.......................................................................................... 6
» INSTALLATION AND SERVICE INSTRUCTIONS .................................................................... 9
» CHASSIS LAYOUT .................................................................................................................16
» BLOCK DIAGRAM ..................................................................................................................18
» PRINTED WIRING BOARD ASSEMBLIES............................................................................. 20
» SCHEMATIC DIAGRAMS ....................................................................................................... 26
» REPLACEMENT PARTS LIST ................................................................................................ 42
» PACKING OF THE SET .......................................................................................................... 60
MODELS
27J-S100/180/260
CJ27S10/26
27J-S180
27J-S100/S260
CJ27S10/26
SHARP ELECTRONICS CORPORATION
Service Headquarters: Sharp Plaza, Mahwah, New Jersey 07430-2135
SHARP ELECTRONICS OF CANADA LTD.
335 Britannia Road East Mississauga,Ontario L4Z 1W9 Canada
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S37W727J-S100

Sharp 27J-S260 Specifications

General

Display Technology	CRT
Screen Size	27 inches
Resolution	Standard Definition
Aspect Ratio	4:3
Speakers	Stereo
Inputs	Composite, S-Video

Summary

ELECTRICAL SPECIFICATIONS

IMPORTANT SERVICE SAFETY PRECAUTIONS

HIGH VOLTAGE AND X-RADIATION SAFETY

Precautions and limits for high voltage and X-radiation during servicing.

SERVICING HIGH VOLTAGE SYSTEMS

Safe procedures for servicing high voltage systems and picture tubes.

BEFORE RETURNING THE RECEIVER

FIRE AND SHOCK HAZARD CHECKS

Safety checks for fire and shock hazards before user return.

SAFETY NOTICE ON REPLACEMENT PARTS

Critical safety information regarding replacement parts.

FIRE AND ELECTRIC SHOCK VERIFICATIONS

LEAKAGE CURRENT MEASUREMENT

Procedure for measuring electrical leakage current.

USER CONTROL LOCATIONS AND OPERATION

FRONT PANEL CONTROLS

Identification and function of front panel controls.

BASIC REMOTE CONTROL FUNCTIONS

Explanation of common remote control button functions.

INSTALLATION AND SERVICE INSTRUCTIONS

CIRCUIT PROTECTION

Description of the receiver's circuit protection mechanism.

X-RADIATION PROTECTOR CIRCUIT TEST

Procedure for testing the X-radiation protector circuit.

HIGH VOLTAGE CHECK

Procedure for checking the high voltage output.

SERVICE MODE OPERATIONS

ENTERING AND EXITING SERVICE MODE

Steps to enter and exit the service mode for adjustments.

SERVICE NUMBER AND DATA SELECTION

How to select specific service adjustment numbers and data.

DETAILED ADJUSTMENT PROCEDURES

PICTURE QUALITY ADJUSTMENTS

Adjustments for VCO, RF AGC, Screen, White Balance, Sub-picture, Tint, Color, Brightness.

GEOMETRY AND TIMING ADJUSTMENTS

Adjustments for Vertical Size/Linearity, Horizontal Position, Caption Position, 3.58MHz Trap.

AUDIO AND SHARPNESS ADJUSTMENTS

Adjustments for Sharpness and Audio Balance.

SPECIALIZED FEATURE ADJUSTMENTS

MTS AUDIO ADJUSTMENTS

Procedures for MTS level, VCO, filter, and separation adjustments.

PICTURE-IN-PICTURE (P-IN-P) ADJUSTMENTS

Procedures for PiP level, tint, color, offset, position, and burst gate adjustments.

SCHEMATIC DIAGRAM DESCRIPTION

WAVEFORM MEASUREMENT CONDITIONS

Conditions for measuring waveform signals.

CHASSIS LAYOUT

BLOCK DIAGRAM

PRINTED WIRING BOARD ASSEMBLIES

CRT SCHEMATIC DIAGRAM

SENSOR IC VOLTAGE INDICATIONS

Voltage indications for sensor IC IC2001 pins.

REPLACEMENT PARTS LIST

HOW TO ORDER REPLACEMENT PARTS

Instructions on how to order replacement parts correctly.

CATEGORIES OF REPLACEMENT PARTS

Lists of Picture Tube, Tuner, IC, Transistor, and PWB parts.

PACKING OF THE SET