Document
www.DataSheet.co.kr
70FW-53E
SERVICE MANUAL
SE0070FW53E00
Issued: 01 August 2002
DA-50W CHASSIS
PAL B/G I / SECAM L L’ B/G D/K SYSTEM COLOUR TELEVISION
MODEL
SHARP
70FW-53EE/ENL/ECG/I/SE
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 SPECIFICATIONS.....................3 IMPORTANT SERVICING NOTES...................4 ADJUSTMENT PROCEDURES........................5 PRINTED WIRING BOARDS..........................10 COMPONENT LOCATION TABLES................17 SCHEMATIC DIAGRAMS................................24 BLOCK DIAGRAM...........................................34 PARTS LISTING..............................................35 STEREO LED FLASHING CODES.................45 PACKING OF THE SET...................................46
SHARP CORPORATION
1
This document has been published to be used for after sales service only.
Datasheet pdf - http://www.DataSheet4U.net/
www.DataSheet.co.kr
70FW-53E
SERVICE MANUAL UPDATE LOG SHEET
Technical Report No. Technical Bulletin No. Cause / Solution Part No. Page No. Application Data /Serial No.
Use this page to keep any special servicing information as Technical Report (Bulletin), Technical Information, etc. If only part number changes are required, just change part number directly the part number in the Parts Listing Section. If you need more information, please refer to the Technical Report (Bulletin).
2
Datasheet pdf - http://www.DataSheet4U.net/
www.DataSheet.co.kr
70FW-53E
ELECTRICAL SPECIFICATIONS
•Power Input ..................... 220V-240 Volts AC 50Hz •Power Consumption Normal Operation ..................................155W (Method IEC 60107) Stand-by Operation ....................................1W •Audio Power Output Rating (MPO) / Impedance Internal Left Speaker ....................... 10W, 7Ω Internal Right Speaker ..................... 10W, 7Ω Internal Centre Speaker .............. 10W, 7Ω •Speakers Left / Right ........................................ 4 x 10cm Centre .............................................. 6 x 13cm •Convergence Static (Centre) between any two colours......................0.08cm Dynamic after static equals zero Within 10cm (4”) circle.........................0.12cm 10-28cm (4-10”) circle..........................0.20cm Everywhere else...................................0.28cm •Focus ....................... High Bi-Potential Electrostatic •Sweep Deflection ...................................... Magnetic • Picture Intermediate frequency L’..................................................33.9MHz L, B/G, D/K,I................................38.9MHz • Sound Carrier Trap L’..................................................40.4MHz L, D/K...........................................32.4MHz B/G..............................................33.4MHz I....................................................32.9MHz • Adjacent Sound Carrier Trap L’..........................................................32.4MHz L, D/K, B/G..................................40.4MHz I....................................................40.9MHz • Adjacent Picture Carrier Trap L’..........................................................41.9MHz L, D/K,I.........................................30.9MHz B/G..............................................31.9MHz • Aerial Input Impedance VHF/UHF ................. 75 ohm Unbalanced • Tuning Ranges.......45.75MHz thru 855.25 MHz VHF: IR A~J / S1~S41 CH (HIPERBAND) E2~E12 / F2~F10 UHF: E21~E69 CH, I21~I69 CH CATV Special Channels
• White Level Set brightness control to get total picture tube cathode current of 600 µA under no signal condition. Maximum necessary correction of each picture tube cathode current to get 8550 degrees K+1 MPCD. Screen temperature should not exceed 15% of its original value. X=0.290 ± 0.015 Y=0.300 ± 0.015 Specifications are subject to change without prior notice.
EN 61000-3-2 In order to comply with the European Norm 61000-3-2 regarding Electromagnetic compatibility (EMC), it has been included mainly, in the PFC Circuit (Power Filter Correction), on every TV set manufactured from January 2001. On TV set manufactured before the above date (Serial Number 800929 for 70FW-53E or previous), this modification is not required.
WARNING Part of this chassis is not isolated from the mains supply. When carrying out any servicing work, ensure that an isolation transformer is connected in the mains supply. To prevent electric shock, do not remove the cover unless you are qualified to do so. Refer servicing work to a qualified engineer.
3
Datasheet pdf - http://www.DataSheet4U.net/
www.DataSheet.co.kr
70FW-53E
IMPORTANT SERVICING NOTES
Only qualified service personnel are allowed to carry out maintenance and repair of this receiver.
SERVICING OF HIGH VOLTAGE SYSTEM AND CRT
It is important that the static charge is removed from the high voltag.