Hitachi DE 99 Service Manual

Page 1

@HITACHI "

D-E9 'I
SERVICE MANUAL (U,C,FS9,BS,AU,W)

CONTENTS

Specifications .
Disassembly
Adjustment...
Inspection of mechamsm
Lubrications . .,
Block diagram .
Schematic diagram . ..
Circuit board diagram.
Wiring diagram iiiii
Schematic diagram
IC pin function table. .
Microprocessor test program ..
Replacement parts list .........

Exploded View (Mechanism-FLSQA)
Exploded view (Cabinet) ......................

27, 31

KEY TO ILLUSTRATIONS

(9 POWER IMAINSI SWITCH q; iNPUT SELECT SWITCH
® TIMER SWITCH @ HEADPHONE SOCKET

Ca) COUNTER RESET SWITCH ® MICROPHONE SOCKETS
Q) TAPE COUNTER Q9 MONITOR SWITCH

C5) ELAPSED TIME RESET SWITCH {I} TAPE SELECT SWITCHES
© ELAPSED TIMER Q2 AUTO/MEMORY REWIND SWITCH
(7) DIGITAL PEAK METER Qs) REC. MUTE BUTTON

(a) ATRS BUTTON @ PAUSE BUTTON

@ FIXED BUTTON @ RECORD BUTTON

® ATRS START BUTTON @ FAST FORWARD BUTTON
® BATTERY INDICATOR <23 PLAYBACK BUTTON

® TEST INDICATOR @ STOP BUTTON

® DOLBY B/C NR CHANGE OVER SWITCH Q9) REWIND BUTTON

@ DOLBY NR SWITCH @ EJECT BUTTON

@ MPX SWITCH @ OUTPUT LEVEL CONTROL

@ RECORDING LEVEL CONTROLS

SAFETY PRECAUTION

The lollowing precautions should be observed when servicing.

1. Since many parts in the unit have special safety related characteristics. always use genuine Hitachi's replacement
parts. Especially critical parts in the power circuit block should not be replaced with other makes.
Critical parts are marked withA in the schematic diagram and circuit board diagram.

2. Before returning a repaired unit to the customer. the service technician must thoroughly test the unit to ascertain
that it is completely safe to operate without danger of electrical shock.

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

STEREO CASSETTE TAPE DECK
,PesEmPS-EJSBI , ,, TOKA' WORKS

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