Mitsubishi dt 41p service en alt
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Page 1
AAUDIO SYSTEMS
SERVICE MANUAL
MODEL DT- 4 I P
CONTENTS
SPECIFICATIONS ............................................................. 2
FRONT PANEL TERMINOLOGY AND FUNCTIONS ..................................... 3
DISASSEMBLY INSTRUCTIONS ................................................... 4
ADJUSTMENT OF MECHANICAL SECTION ........................................... 5
ADJUSTMENT OF ELECTRICAL SECTION ........................................... 6
INTERNAL DIAGRAMS AND PINOUT OF INTEGRATED CIRCUITS .......................... 7
WIRING DIAGRAM ........................................................... 13
SCHEMATIC DIAGRAM ........................................................ 15
PRINTED CIRCUIT BOARDS .................................................... 17
EXPLODED VIEW OF CABINET .................................................. 19
EXPLODED VIEW OF MECHANISM ............................................... 20
PARTS LIST ................................................................ 21
PACKING INSTRUCTIONS ...................................................... 24
MITSUBISHI ELECTRIC SALES AMERICA, INC.
3019 East Maria Street Compton, California 90221
Page 2
SPECIFICATIONS
Tape .................................... 4 track, 2 channel Stereo Cassette Deck
Motor type
Capstan motor ............................ DC servo motor
Reel motor .............................. DC motor
Mechanism drive motor . ..................... DC motor
Head material
REC/PB head ............................. Hard permalloy
Erase head . . . ' ............................ Ferrite
Tape speed ................................ 4.75cm/s (1-7/8 ips)
Tape speed accuracy .......................... i1 %
Wow and flutter ............................. 0.05% Wrms
Fast forward/rewind times ...................... 1 1559c. (C-60 type)
SN ratio (400Hz, 3% THD, Weighted, Metal tape)
Dolby NR out ............................ 58dB
Dolby NR in ............................. 68dB
Frequency response (Record level 160 pwb/mm -30dB)
Normal tape ............................. 20-15,000Hz
Special tape .............................. 20-17,000Hz
Metal tape ............................... 20-18,000Hz
Erasure ratio (1kHz) .......................... 60dB
Input sensitivity/impedance
Line input ............................... 150mV (120k ohms)
Output level
Line output .............................. 440mV (22k ohms load)
Power consumption .......................... 16W
Dimensions (W x H x D) ....................... 355 x 103 x 230 mm
(14 x 4-1/16 x 9-1/16)
Weight ................................... 3.9kg (8.6 lbs)
Noise Reduction System manufuctured under license from Dolby Laboratories Licensing Corporation.
Dolby' and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.
Specifications of this unit are subject to change without notice for improvement.