Sharp 14D2-S

14D1-S/G/W
14D2-S/G
1
SERVICE MANUAL
COLOUR TELEVISION
MODELS 14D1-S/G/W, 14D2-S/G
14D1-S/G/W
14D2-S/G
WARNING
The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power
receptacle, when servicing this chassis. To prevent electric shock, do not remove cover. No user – serviceable
parts inside. Refer servicing to qualified service personnel.
SERVICE MANUAL
In the interests of user-safety (Required by safety regulations in some countries) the set should be re-
stored to its original condition and only parts identical to those specified should be used.
MODELS
SHARP CORPORATION
COLOUR TELEVISION
Chassis No. GA-1AM
FEATURES
Ë
Multi 18 systems
Ë
Full Auto Channel Preset and Auto Channel Skip
Ë
100-CH Program Memory
Ë
CATV(Hyper Band) Ready
<Used Frequency Synthesizer Tuner>
Ë
AVL(Sound Keeper) Function
Ë
Black Stretch Circuit
Ë
On Timer/Sleep Timer/Reminder Timer
Ë
Blue Back Noise Mute
Ë
Front Headphone Terminal
Ë
Front AV-In & Rear AV-In/Out Terminals
(Front Priority)
Ë
Colour Comb Filter(NTSC only)
Ë
High Contrast Picture
Ë
Hotel Mode
Ë
Arabic/Chinese/English/French/Malay/Russian
6 Languages OSD
Ë
White Temperature Adjustment
14D1-S/G/W 14D2-S/G
Page
CONTENTS
Page
» SPECIFICATIONS ............................................. 2
» IMPORTANT SERVICE NOTES ........................2
» ADJUSTMENT PRECAUTIONS........................ 3
» MEMORY MAP ................................................ 11
» GA1 HOTEL MODE APPLICATION ................ 15
» TROUBLE SHOOTING TABLE ........................15
» WAVEFORMS..................................................18
» SOLID STATE DEVICE BASE DIAGRAM ....... 20
» CHASSIS LAYOUT ..........................................21
» BLOCK DIAGRAM ........................................... 23
» DESCRIPTION OF SCHEMATIC DIAGRAM .. 28
» SCHEMATIC DIAGRAM
Ë
CRT UNIT.....................................................29
Ë
HEAD PHONE UNIT .................................... 29
Ë
MAIN UNIT ...................................................30
» PRINTED WIRING BOARD ASSEMBLIES .....34
» REPLACEMENT PARTS LIST
Ë
ELECTRICAL PARTS
MAIN UNIT ................................................... 39
CRT UNIT.....................................................42
HEAD PHONE UNIT .................................... 43
Ë
SUPPLIED ACCESSORIES......................... 43
Ë
PACKING PARTS......................................... 43
Ë
CABINET PARTS ......................................... 44
» PACKING OF THE SET...................................45
SX2T914D-1S//

Sharp 14D2-S Specifications

General

Brand	Sharp
Model	14D2-S
Category	TV
Language	English

Summary

TV Specifications and Service Notes

Television Specifications

Detailed technical specifications for the television models.

Important Service Notes and Safety

Essential safety and handling guidelines for service personnel.

TV Adjustment Procedures

Microprocessor Service Mode Setup

Steps to set the television to its microprocessor service mode.

Factory Presetting Procedure

Instructions for performing initial factory presetting of the TV.

Service Mode Navigation Guide

How to navigate through different service modes using the remote control.

CRT Picture Adjustments

CRT Purity Adjustment

Steps to adjust the purity of the CRT image.

PIF Adjustment Procedures

Instructions for tuning the PIF (Process Intermediate Frequency) circuit.

Convergence and Color Adjustments

Convergence Adjustment

Steps for aligning the electron beams for accurate image convergence.

CRT Cut-off, Background, Sub-Contrast Adjustment

Adjusting CRT cut-off, background, and sub-contrast parameters.

Chroma and Deflection Adjustments

NTSC Chroma Adjustment

Procedure for adjusting chroma signals in NTSC systems.

Horizontal and Vertical Deflection Adjustment

Adjusting the deflection loops for horizontal and vertical image stability.

PAL Chroma Control Adjustment

Procedure for adjusting chroma signals in PAL systems.

Function Operation and Troubleshooting

Function Operation Check (VideoAudio)

Verifying the correct operation of video and audio functions.

GA1 Hotel Mode Application

Instructions for enabling and using the hotel mode feature.

Troubleshooting Table

Guide to diagnosing and resolving common TV problems.

Waveforms and Diagrams

Waveform Analysis (14 D1-SGW)

Visual representations of key signal waveforms for diagnosis.

Waveform Analysis (14 D2-SG)

Visual representations of key signal waveforms for diagnosis.

Solid State Device Base Diagram

Diagrams showing pin configurations of solid-state components.

Chassis Layout Diagrams

Visual layout of components on the TV chassis.

Block Diagrams and Schematics

Block Diagrams

Functional block diagrams for CRT, Headphone, and Main units.

Schematic Diagrams

Detailed circuit diagrams for CRT, Headphone, and Main units.

Printed Wiring Boards

Main Unit PWB Assemblies

Wiring and chip side diagrams for the main unit printed circuit board.

CRT Unit PWB Descriptions

Wiring and chip side views for CRT unit printed circuit boards.

Headphone Unit PWB Descriptions

Wiring and chip side views for headphone unit printed circuit boards.

Parts and Cabinet Information

Replacement Parts List

Comprehensive list of replacement parts with part numbers.

Cabinet Parts

List and location of cabinet replacement parts.

Packing of the Set

Instructions and illustration for packing the television set.