Mitsubishi HS-U449 free download

File name HS-U449_Service_Manual.pdf

2003 VIDEO CASSETTE RECORDER MODEL HS-U449 Only cassettes marked VHS can be used with this video cassette recorder. SPECIFICATIONS Tape Format Power Source Power Consumption Video Signal System Video Recording System Luminance Color Signal Hi-Fi Audio Recording System Linear Audio Track Tape Speed Record/Playback Time : VHS 1/2" high-density video cassette tape : 120 V AC ; 60 Hz : Approx. 20 W (STBY 3 W) : EIA standard ; NTSC color : VHS standard : Frequency modulation recording : Low frequency conversion sub-carrier phase shift recording : VHS standard Azimuth helical scanning system : 1 track : 1-5/16 i.p.s (standard play) 7/16 i.p.s (extended play) : 120 min. with T-120 video cassette (SP mode) 360 min. with T-120 video cassette (EP mode) : : : : 4 heads 2 heads 1 head 1 head : 0.5 - 2.0 V(p-p), 75 unbalanced RCA Pin Jack Audio Input : 346 mV(rms), 47 k unbalanced RCA Pin Jack Video Output : 1.0 V(p-p), 75 unbalanced RCA Pin Jack Audio Output : 346 mV(rms), 1 k unbalanced RCA Pin Jack Tuner VHF : 54 - 88 MHz, 174 - 216 MHz UHF : 470 - 806 MHz CATV : 54 - 88 MHz, 90 - 804 MHz Operating Temperature : 41 - 104°F Relative Humidity : 30 - 80% RF Channel Output : Channel 3 or 4 switchable Weight : Approx. 8.0 lbs. (3.6 kg) Dimensions : 16.7"(W) Ч 3.7"(H) Ч 11.9"(D) 425 (W) Ч 93 (H) Ч 302 (D) mm Timer Program Capacity : 1 month programmable / 8 programs : Deck Deck Video Input Record/Playback System Video Hi-Fi Audio Monaural Audio Control Erase · Weight and dimensions shown are approximate. · Design and specifications are subject to change without notice. MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC. 9351 Jeronimo Ave. Irvine, California 92618 U.S.A. Copyright C 2003 Mitsubishi Digital Electronics America, Inc. All Rights Reserved. CONTENTS - FILE "COVERPGE" SPECIFICATIONS ...1 CONTENTS...2 GLOSSARY OF ABBREVIATIONS...4 - FILE "DISASSY" SAFETY PRECAUTIONS ...1 CONNECTION ...3 DISASSEMBLY...4 HOW TO EXECUTE CIRCUIT BOARD SERVICE...7 CHIP PARTS REPLACEMENT...9 - FILE "ELCTADJ" HOW TO INITIALIZE THE E2PROM...1 WHEN REPLACING IC5A0 ...1 ELECTRICAL ADJUSTMENTS...1 Servo circuit...2 - FILE "MECHAADJ" MECHANICAL ADJUSTMENT AND REPLACEMENT...1 1. DECK Cleaning...1 1-1 VIDEO HEAD ...1 1-2 Tape Running System ...1 1-3 REEL DISK Drive System ...