Sharp 26MR70, Service Manual

1

26MR70

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.

 ELECTRICAL SPECIFICATIONS ........................................................................................................ 1
 IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................ 2
 LOCATION OF USER'S CONTROL .................................................................................................... 4
 INSTALLATION AND SERVICE INSTRUCTIONS ............................................................................... 5
 CHASSIS LAYOUT ............................................................................................................................11
 BLOCK DIAGRAM .............................................................................................................................12
 SCHEMATIC DIAGRAMS ..................................................................................................................13
 PRINTED WIRING BOARD ASSEMBLIES ....................................................................................... 19
 REPLACEMENT PARTS LIST ...........................................................................................................22
 PACKING OF THE SET ..................................................................................................................... 29

Page

SHARP CORPORATION

This document has been published to be used for after
sales service only.
The contents are subject to change without notice.

CONTENTS

MODEL

ELECTRICAL SPECIFICATIONS

POWER INPUT ..................................................... 120 V AC 60 Hz
POWER RATING .................................................................. 100 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 ..................... 1.5 W+1.5 W (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.

26MR70

COLOR TELEVISION

Chassis No. SN-012

S21P826MR70

SERVICE MANUAL