Sharp 14V-L70M, Руководство по обслуживанию

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SERVICE MANUAL
TVSM017-14V-L70M
NTSC SYSTEM
COLOR TELEVISION
GA-1- CHASSIS
MODEL :
14V-L70M
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
•
ELECTRICAL SPECIFICATIONS ------------------------------------------------------------------- 1
•
IMPORTANT SERVICE SAFETY PRECAUTION ----------------------------------------------- 2
•
LOCATION OF USER’S CONTROL --------------------------------------------------------------- 4
•
INSTALLATION AND SERVICE INSTRUCTIONS ----------------------------------------------- 5
•
CHASSIS LAYOUT ------------------------------------------------------------------------------------- 13
•
BLOCK DIAGRAM -------------------------------------------------------------------------------------- 14
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SCHEMATIC DIAGRAMS ----------------------------------------------------------------------------- 18
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PRINTED WIRING BOARD ASSEMBLIES ------------------------------------------------------- 21
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REPLACEMENT PARTS LIST ----------------------------------------------------------------------- 24
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PACKING OF THE SET -------------------------------------------------------------------------------- 31
ELECTRICAL SPECIFICATIONS
POWER INPUT ….…....… 110~230 V AC 60Hz
POWER RATING ………………………….. 55W
PICTURE SIZE …….…… 574 cm
2
(89 sq inch)
CONVERGENCE …………………….. Magnetic
SWEEP DEFLECTION ………………. Magnetic
FOCUS ……………………… QPF 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 …….... 3 W
SPEAKER SIZE ………………….……. 9 x 5 cm
VOICE COIL IMPEDANCE .. 16 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
Specifications are subject to change
without prior notice.
SHARP (PHILS.) CORPORATION
Km 23 West Service Road, South Super Highway Alabang, City of Muntinlupa