Sharp 27L-S180 - User Manual

1
27L-S100/27L-S180
CL27S10/CL27S18
COLOR TELEVISION
Chassis No. SN-91
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.
S39D927L-S100
MODELS
» ELECTRICAL SPECIFICATIONS......................................................................................................... 1
» IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................ 2
» LOCATION OF USER'S CONTROL.....................................................................................................6
» INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................ 8
» CHASSIS LAYOUT ............................................................................................................................. 14
» BLOCK DIAGRAM ............................................................................................................................. 15
» SCHEMATIC DIAGRAMS................................................................................................................... 16
» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 26
» REPLACEMENT PARTS LIST ........................................................................................................... 29
» PACKING OF THE SET ..................................................................................................................... 36
Page
POWER INPUT ................................................... 120 V AC 60 Hz
POWER RATING .................................................................. 110 W
PICTURE SIZE ........................................... 2,187cm
2
(339sq 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 .............. 1.3W + 1.3W (at 10% distortion and
Dual CH Operate)
SHARP CORPORATION
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
CONTENTS
ELECTRICAL SPECIFICATIONS
Specifications are subject to change without
prior notice.
SPEAKER
SIZE ...................................................................... 8 cm (Round)
VOICE COIL IMPEDANCE ............................. 32 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.)
SERVICE MANUAL
27L-S100/27L-S180
CL27S10/CL27S18

Sharp 27L-S180 Specifications

General

Brand	Sharp
Model	27L-S180
Category	Colour television
Language	English

Summary

Electrical Specifications

Service Safety Precautions

High Voltage and X-Radiation Limits

Guidelines for managing X-radiation and maintaining high voltage limits.

Servicing High Voltage System and Picture Tube

Procedures for safely servicing high voltage systems and picture tubes.

General Warning

Critical safety warnings for service personnel.

Pre-Return Receiver Safety Checks

Safety Notice

Installation and Service Instructions

High Voltage Check

Procedure for checking the high voltage output for safety and design limits.

X-Radiation Protector Circuit Test

Steps to test the X-radiation protection circuit for proper operation.

Circuit Protection

Information about the receiver's fuse and circuit protection.

Service Adjustments

VCO Adjustment

Steps to adjust the Voltage Controlled Oscillator for proper function.

RF AGC Adjustment

Steps to adjust the RF Automatic Gain Control for optimal signal reception.

Screen Adjustment

Steps to adjust screen parameters like brightness and grey scale.

White Balance Adjustment

Steps to adjust white balance for accurate color representation.

Sub-Picture Adjustment

Sub-Tint Adjustment

Sub-Color Adjustment

Picture and Audio Adjustments

Vertical Size and Phase Adjustment

Steps to adjust vertical picture size and phase for proper display.

Horizontal Position and Caption Adjustment

Steps to adjust horizontal picture centering and caption positioning.

Trap and Energy Save Adjustments

Sharpness and Audio Balance

MTS Adjustments

MTS Level and VCO Adjustment

Steps to adjust MTS audio signal level and VCO frequency.

MTS Filter and Separation Adjustment

Chassis Layout Diagram

Block Diagram

Schematic Diagram CRT and Front AV Units

Schematic Diagram Main-1 Unit (Models 27 L-S100, CL27 S10)

Schematic Diagram Main-2 Unit (Models 27 L-S100, CL27 S18)

Schematic Diagram Main-1 Unit (Models 27 L-S180, CL27 S18)

Schematic Diagram Main-2 Unit (Models 27 L-S180, CL27 S18)

Printed Wiring Board Assemblies

Parts List

Parts Replacement Guidelines