Mitsubishi HS-U778 Specifications download pdf (Page 8)

1. Removal of Top Cover

1. Remove the two Top Cover fastening screws (a) shown

in Fig. 1 and remove the Top Cover in the direction

shown by arrow.

2. Removal of Front Panel

1. Remove the Top Cover.

(Refer to Para. 1 of the DISASSEMBLY.)

2. Unfasten the seven catches (b) shown in Fig. 1 and

remove the Front Panel in the direction shown by arrows.

DISASSEMBLY

Top Cover

Front Panel

Fig. 1

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 83 84

MITSUBISHI 1
CONTENTS 2
GLOSSARY OF ABBREVIATIONS 4
SAFETY PRECAUTIONS 5
PRECAUTIONS 6
CONNECTION 7
DISASSEMBLY 8
3. Removal of Bottom Panel 9
4. Removal of DECK ASSY 10
LOCATION OF PRINTED CIRCUIT 11
1. PCB-OPE 11
2. PCB-SIGNAL 11
3. PCB-MAIN 12
CHIP PARTS REPLACEMENT 13
1. DECK Cleaning 14
2. Replacement of Major Parts 15
2-3. BOTTOM ASSY 16
2-4. INSERT GUIDE (TU) 17
2-5. INSERT GUIDE (SP) 17
2-6. REC HOLDER, REC LEVER 18
REC SPRING 18
2-8. A/C HEAD UNIT 19
2-9. F/E HEAD 19
2-10.SENSOR COVER (TU) 20
2-11. SENSOR COVER (SP) 20
2-12.REV UNIT (TU) 21
REV UNIT (SP) 21
2-13.MODE POSITION UNIT 21
(Removal) 22
(Installation) 22
BRAKE ASSY 24
2-16.FC HOLDER, MOTOR HOLDER 25
LOADING WORM, LOADING MOTOR 25
ASSY, WORM WHEEL 25
2-18.F/L PLATE, DOOR ARM 26
2-19.BRAKE CAM PLATE 27
2-20.GUIDE LAMP 28
BRAKE LEVER, LB PIN 29
2-22.L/D LOCK LEVER 30
TENSION SPRING, TENS AXIS 31
HOLDER, REEL DISK (SP side) 31
2-26.BRAKE BELT (TU) 32
2-28.SHIFT LEVER 33
CHARGE ASSY 34
ARM ASSY (TU) 34
2-31.A/L LEVER 35
2-32.TAPE GUIDE ASSY (SP) 37
TAPE GUIDE ASSY (TU) 37
2-33.DRUM CLAMPER, DRUM ASSY 38
2-34.DRUM MOTOR STATOR, BRUSH 39
SPRING, SPACER, ROTOR CASE 39
END RING, BRUSH, UPPER DRUM 39
2-35.CAPSTAN MOTOR 40
2-36.IMPEDANCE UNIT (SP) 42
FLYWHEEL (SP) 42
2-37.SSW HOLDER, SSW SLIDER 42
3-2. Check and Adjustment 44
3-2-6. Tape Running Condition 46
3-2-7. Tape Running Condition 46
3-3. A/C HEAD Adjustment 47
3-4. Phase Adjustment 48
3-5. Tape wrinkle check 48
4. Servicing for Tape Jam 49
DECK OPERATION CHECK 50
ELECTRICAL ADJUSTMENTS 51
HOW TO INITIALIZE THE E 51
WHEN REPLACING IC5A0 51
PARTS LIST 53
2. PACKING PARTS 55
DECK ASSEMBLY 57
DECK ASSEMBLY-1 58
DECK ASSEMBLY-2 60
3. ELECTRICAL PARTS 62
PCB-SIGNAL 70
(U77802042) 71
PCB-MAIN 72
PCB-OPE 73
Q901 COLLECTOR 75
Not Employed 76
From 1 pin 77
From 3 pin 77
REMOTE HAND UNIT 79
IC8A0 µPD16312GB-3BS 80
IC6001,IC6002 NJM2520M 81
IC2000 JCP8013 83
PCB-SIGNAL [SOLDER SIDE] 84
PCB-SIGNAL [COMPONENT SIDE] 84

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Mitsubishi HS-U778 Specifications Page 8

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