Varios

20MR10

SER VICE MANUAL
S11O220MR10

COLOR TELEVISION

Chassis No. SN-010

POWER

VOL

CH

VIDEO IN AUDIO

MENU

MODEL

20MR10

In the interests of user-safety (Required by safety regulationsin some countries) the set should be restored to its original condition and only parts identical to those specified should be used.

Page ELECTRICAL SPECIFICA TIONS......................................................................................................... 1 IMPORTANT SER VICE SAFETY PRECAUTION ................................................................................. 2 LOCATION OF USER'S CONTROL ..................................................................................................... 4 INSTALLATION AND SER VICE INSTRUCTIONS................................................................................ 5 CHASSIS LAYOUT ............................................................................................................................. 11 BLOCK DIAGRAM .............................................................................................................................. 12 SCHEMATIC DIAGRAMS................................................................................................................... 13 PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 20 REPLACEMENT PARTS LIST ............................................................................................................ 23 PACKING OF THE SET...................................................................................................................... 29

CONTENTS

ELECTRICAL SPECIFICA TIONS
POWER INPUT .................................................... AC 120 V, 60 Hz POWER RATING ................................................................... 69 W PICTURE SIZE ........................................... 1,194cm2 (185sq 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 MHzColor Sub-Carrier Frequency .................................... 42.17 MHz (Nominal) AUDIO POWER OUTPUT RATING ..................................................... 1 W (RMS) 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 priornotice.

SHARP CORPORA TION

This documenthas been published to be used for after sales service only. 1 The contents are subject to change without notice.

20MR10

IMPORTANT SERVICE SAFETY PRECAUTION
Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow: WARNING
1. For continuedsafety no modification of any circuit , should be attempted. 2. Disconnect AC power before servicing. 3. Semiconductor heat sinks are potential shock hazards when the chassis is operating. 4. The chassis in this receiver has two ground systems whichare separated by insulating material. The nonisolated (hot) ground system is for the B+ voltage regulator circuit and the horizontal output circuit. The...