Sharp 25L-S100 User Manual

1
25L-M100/180/S100/180
CL25M10,CL25S18
SERVICE MANUAL
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.
S49F325L-M100
» ELECTRICAL SPECIFICATIONS........................................................................................................ 1
» IMPORTANT SERVICE SAFETY PRECAUTION ............................................................................... 2
» LOCATION OF USER'S CONTROL.................................................................................................... 6
» INSTALLATION AND SERVICE INSTRUCTIONS ............................................................................ 10
» CHASSIS LAYOUT ........................................................................................................................... 16
» BLOCK DIAGRAM ............................................................................................................................ 18
» SCHEMATIC DIAGRAMS ................................................................................................................. 20
» PRINTED WIRING BOARD ASSEMBLIES ....................................................................................... 38
» REPLACEMENT PARTS LIST .......................................................................................................... 41
» PACKING OF THE SET..................................................................................................................... 49
Page
25L-S100/180
CL25S18
25L-M100/180
CL25M10
SHARP CORPORATION
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
CONTENTS
25L-M100/180, 25L-S100/180
CL25M10, CL25S18
MODELS
ELECTRICAL SPECIFICATIONS
POWER INPUT ................................................... 120 V AC 60 Hz
POWER RATING
25L-M100/180, CL25M10 ................................................. 105 W
25L-S100/180, CL25S18 .................................................. 110 W
PICTURE SIZE ........................................... 2,032cm
2
(315sq 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
25L-M100/180, CL25M10 ............... 1.3W (at 10% distortion and
Dual CH Operate)
25L-S100/180, CL25S18 .... 1.3W +1.3W (at 10% distortion and
Dual CH Operate)
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.)
Specifications are subject to change without
prior notice.

Sharp 25L-S100 Specifications

General

Display Technology	LED
Refresh Rate	60 Hz
HDMI Ports	2
USB Ports	1
Built-in Tuner	Yes
Screen Size	25 inches
Resolution	1366 x 768
Weight	3.5 kg
Sound Output	10W (5W x 2)

Summary

Electrical Specifications

Important Service Safety Precautions

X-Radiation and High Voltage Limits

Details safety precautions related to X-ray radiation and high voltage in TV receivers.

Pre-Return Receiver Safety Checks

Fire and Shock Hazard Verification

Outlines essential safety checks to perform before returning the receiver to the user.

Installation and Service Instructions

High Voltage Check

Explains how to verify the high voltage is within safe design limitations.

Service Mode Operations

Entering and Exiting Service Mode

Describes the procedure to enter and exit the television's service mode.

Service Adjustments

Screen Adjustment

Outlines procedures for adjusting screen brightness and grey scale.

Chassis Layout

Block Diagram

Printed Wiring Board Assemblies

PWB-A: MAIN Unit (Wiring Side)

Shows the wiring side layout of the main printed wiring board (PWB-A).

Parts List

Integrated Circuits

Lists integrated circuits with their part numbers and descriptions.