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Sharp 25R-M100 Service Manual
Sharp 25R-M100 Service Manual

Sharp 25R-M100 Service Manual

Color television
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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 ........................................................................................ 17
» REPLACEMENT PARTS LIST ............................................................................................................ 22
» PACKING OF THE SET ...................................................................................................................... 29
POWER INPUT .................................................... 120 V AC 60 Hz
POWER RATING ................................................................... 95 W
PICTURE SIZE ........................................... 2,032cm
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
AUDIO POWER
OUTPUT RATING ................................ 1.5W (at 10% distortion)
SHARP CORPORATION

SERVICE MANUAL

MODEL
CONTENTS
ELECTRICAL SPECIFICATIONS
SPEAKER
SIZE ...................................................................... 8 cm (Round)
VOICE COIL IMPEDANCE ............................ 32 ohm at 400 Hz
2
(315sq inch)
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
(Nominal)
Specifications are subject to change without
prior notice.
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
1
COLOR TELEVISION
Chassis No. SN-010
25R-M100
(EIA, Channel Plan U.S.A.)
25R-M100
S21O525R-M100
Page

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Summary of Contents for Sharp 25R-M100

  • Page 1: Service Manual

    25R-M100 SERVICE MANUAL S21O525R-M100 COLOR TELEVISION Chassis No. SN-010 25R-M100 MODEL 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.
  • Page 2: Chassis Layout

    25R-M100 CHASSIS LAYOUT...
  • Page 3: Block Diagram

    25R-M100 BLOCK DIAGRAM...
  • Page 4: Description Of Schematic Diagram

    25R-M100 DESCRIPTION OF SCHEMATIC DIAGRAM WAVEFORM MEASUREMENT CONDITIONS: NOTES: 1. Photographs taken on a standard gated color bar 1. The unit of resistance "ohm" is omitted. (K=k Ω =1000 Ω , M=M Ω ) signal, the tint setting adjusted for proper color. The wave shapes at the red, green and blue cathodes of 2.
  • Page 5 25R-M100 SCHEMATIC DIAGRAM: MAIN Unit...
  • Page 6 25R-M100 SCHEMATIC DIAGRAM: CRT and FRONT A/V Unit...