14SL30
21SL40, 21SL70
SERVICE MANUAL
S89N421SL40//
COLOR TELEVISION
Chassis No. SN-90A(14")
Chassis No. SN-80A(21")
POWERPOWER� VOL +CHMENUVIDEOINAUDIOPOWERPOWER� VOL +CH� VOL +VIDEOINL-AUDIO-R
14SL30
14SL3021SL40, 21SL70
MODELS21SL40, 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.
CONTENTS
Page
E ELECTRICAL SPECIFICATIONS......................................................................................................... 1
E IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................ 2
E LOCATION OF USER'S CONTROL .....................................................................................................4
E INSTALLATION AND SERVICE INSTRUCTIONS ............................................................................... 5
E CHASSIS LAYOUT .............................................................................................................................11
E BLOCK DIAGRAM ............................................................................................................................. 13
E SCHEMATIC DIAGRAMS .................................................................................................................. 16
E PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 28
E REPLACEMENT PARTS LIST ........................................................................................................... 31
E PACKING OF THE SET ..................................................................................................................... 43
ELECTRICAL SPECIFICATIONS
SPEAKER
POWER INPUT ..................................... 110 - 220 V AC 50/60 Hz
SIZE
POWER RATING
14SL30......................................................................9 x 5 cm
14SL30................................................................................65 W
21SL40, 21SL70 ......................................................12 x 6 cm
21SL40................................................................................91 W
VOICE COIL IMPEDANCE
21SL70................................................................................96 W
14SL30..........................................................8 ohm at 400 Hz
PICTURE SIZE
21SL40, 21SL70........................................... 6 ohm at 400 Hz
14SL30.......................................................2 (89,9sq inch)580cm
2 ANTENNA INPUT IMPEDANCE
21SL40, 21SL70 ......................................(192sq inch)1,240cm
VHF/UHF ....................................................75 ohm Unbalanced
CONVERGENCE.............................................................Magnetic
TUNING RANGES
SWEEP DEFLECTION .....................................................Magnetic
VHF-Channels .............................................................. 2 thru 13
FOCUS ............................................... Hi-Bi-Potential Electrostatic
UHF-Channels ............................................................ 14 thru 69
INTERMEDIATE FREQUENCIES
CATV Channels.......................................................... 1 thru 125
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
Specifications are subject to change without
14SL30..................................... 1.3W + 1.3W (at 10% distortion)
21SL40..................................... 2.0W + 2.0W (at 10% distortion)prior notice.
21SL70..................................... 4.0W + 4.0W (at 10% distortion)
SHARP CORPORATION
1 |
ACEC
SHARP
