Sharp 37GT-25S free download

File name 37gt25s.pdf

37GT-25S SERVICE MANUAL SEJB37GT25S00 Issued: 31st Oct. `00 GA-1 CHASSIS PAL SYSTEM COLOUR TELEVISION MODEL 37GT-25S In the interests of user safety (required by safety regulations in some countries) the set should restored to its original condition and only parts identical to those specified should be used. CONTENTS ELECTRICAL SPECIFICATION...3 IMPORTANT SERVICING NOTES...4 SERVICE ADJUSTMENTS...5 PRINTED WIRING BOARDS...12 PARTS ALLOCATION TABLES...16 SOLID STATE DEVICE BASE DIAGRAM...20 SCHEMATIC DIAGRAM, WAVE FORMS...21 BLOCK DIAGRAM...26 TROUBLESHOOTING TABLES...28 PART LIST...30 SHARP CORPORATION 1 This document has been published to be used for after sales service only. 37GT-25S SERVICE MANUAL UPDATE LOG SHEET Technical Report # Technical Bulletin # Cause / Solution Part # Page # Application Data /Serial # Use this page to keep any special servicing information as Thecnical Report (Bulletin), Technical Information, etc. If only part number changes are required, just change part number directly on Part List Section. If you need more information, please refer to the Technical Report (Bulletin). 2 37GT-25S ELECTRICAL SPECIFICATIONS ·Power Input ...220V-240 Volts AC 50Hz ·Power Consumption Normal Operation...34W Stand-by Operation...7.0W ·Adjacent Sound Carrier Trap...40.4MHz ·Sound Carrier Trap...33.4MHz ·Audio Power Output Rating ...2W (MPO) Speaker...32 2W, 8cm Round, 1pc Convergence...Self Converging System Focus...Bi-Potencial Electrostatic Sweep Deflection...Magnetic ·Picture Intermediate Frecuency...38.9MHz ·Adjacent Picture Carrier Trap...31.9MHz ·Aerial Input Impedance VHF/UHF...75 ohm Unbalanced ·Tuning Ranges ...48.25MHz thru 855.25 MHz VHF...CH02-CH12, S1-S41 UHF...CH21-CH69 ·White Level Set the brightness control, with no signal connected, so that the CRT cathode current is 600mA. The maximum correction applied to each cathode current to achieve a screen temperature of 8550 degrees K-1 MPCD should not exceed 15% of its original value. X=0.290 Y=0.300 Specifictions are subject to change without prior notice. WARNING The chassis in this receiver is partially live, always use an isolation transformer when servicing this chassis. To prevent electric shock, do not remove cover. No user-serviceable parts inside. Refer servicing to qualified service personnel. 3 37GT-25S IMPORTANT SE