Sharp 21V-R70M

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. GA-4M
MODEL
Page
ELECTRICAL SPECIFICATIONS .................................................................................................. 1
IMPORTANT SERVICE SAFETY PRECAUTION ......................................................................... 2
LOCATION OF USER'S CONTROL .............................................................................................. 4
INSTALLATION AND SERVICE INSTRUCTIONS ........................................................................ 5
SERVICE MODE ...........................................................................................................................
6
ADJUSTMENT METHOD ..............................................................................................................
CHASSIS LAYOUT ....................................................................................................................... 25
BLOCK DIAGRAM
........................................................................................................................
26
SCHEMATIC DIAGRAMS ...........................................................................................................
PRINTED WIRING BOARD ASSEMBLIES ................................................................................... 33
REPLACEMENT PARTS LIST ...................................................................................................... 36
PACKING OF THE SET ................................................................................................................ 42
CONTENTS
POWER INPUT ..................... 110-230 V AC,50/60 Hz
POWER RATING .............................................. 82 W
PICTURE SIZE
...................... 1,240 cm
2
(192sq 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 ......................
3 W
SPEAKER
SIZE ........................................................
9 cm x 5 cm
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
ELECTRICAL SPECIFICATIONS
TVSM045-21V-R70M
Specifications are subject to change without
prior notice.
SERVICE MANUAL
SHARP (PHILS.) CORPORATION
Km. 23 West Service Road, South Super Highway Alabang, City of Muntinlupa
12
30
21V-R70M
21V-R70M

Sharp 21V-R70M Specifications

General

Brand	Sharp
Model	21V-R70M
Category	TV
Language	English

Summary

Sharp Service Manual Safety Precautions

General Service Warnings

Critical safety warnings for service personnel regarding electrical hazards and modifications.

High Voltage System Servicing

Safety procedures for servicing high voltage systems and picture tubes, including discharge methods.

X-Ray and High Voltage Limits

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

Pre-Return Receiver Safety Checks

Fire & Shock Hazard Checks

Safety checks for fire and shock hazards before returning the unit to the customer.

Leakage Current Testing Procedure

Procedure for testing AC leakage current to ensure user safety.

Television Installation and Service Instructions

X-Radiation Protector Test

High Voltage Check Procedure

Television Adjustment Methods