Sharp 14SL30, Service Manual

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1
14SL30
21SL40, 21SL70
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.
S89N421SL40//
SERVICE MANUAL
14SL30
21SL40, 21SL70
COLOR TELEVISION
Chassis No. SN-90A(14")
Chassis No. SN-80A(21")
POWER
POWER
– VOL + MENU CH VIDEO AUDIO IN
14SL30 21SL40, 21SL70
POWER POWER – VOL + – VOL + CH
VIDEO L-AUDIO-R IN
MODELS
»
ELECTRICAL SPECIFICATIONS ......................................................................................................... 1
»
IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................ 2
»
LOCATION OF USER'S CONTROL ..................................................................................................... 4
»
INSTALLATION AND SERVICE INSTRUCTIONS ............................................................................... 5
»
CHASSIS LAYOUT .............................................................................................................................11
»
BLOCK DIAGRAM ............................................................................................................................. 13
»
SCHEMATIC DIAGRAMS .................................................................................................................. 16
»
PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 28
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REPLACEMENT PARTS LIST ........................................................................................................... 31
»
PACKING OF THE SET ..................................................................................................................... 43
Page
CONTENTS
POWER INPUT ..................................... 110 - 220 V AC 50/60 Hz
POWER RATING
14SL30 ................................................................................ 65 W
21SL40 ................................................................................ 91 W
21SL70 ................................................................................ 96 W
PICTURE SIZE
14SL30 ....................................................... 580cm 2 (89,9sq inch)
21SL40, 21SL70 ...................................... 1,240cm 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
14SL30 ..................................... 1.3W + 1.3W (at 10% distortion)
21SL40 ..................................... 2.0W + 2.0W (at 10% distortion)
21SL70 ..................................... 4.0W + 4.0W (at 10% distortion)
ELECTRICAL SPECIFICATIONS
SPEAKER
SIZE
14SL30 ...................................................................... 9 x 5 cm
21SL40, 21SL70 ...................................................... 12 x 6 cm
VOICE COIL IMPEDANCE
14SL30 .......................................................... 8 ohm at 400 Hz
21SL40, 21SL70 ........................................... 6 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
SHARP CORPORATION
Specifications are subject to change without
prior notice.