Denon DR F8 Service Manual

Page 2

TABLE OF CONTENTS

MAIN FEATURES ................................................ 1
SPECIFICATIONS ................................................. 2
PART NAMES AND FUNCTIONS .................................... 3~4
BLOCK DIAGRAM (DR-F6) ......................................... 5
LEVEL DIAGRAM (DR-F6) ......................................... 6
BLOCK DIAGRAM (DR-F7/F8) ...................................... 7
LEVELDIAGRAM (DR»F7/F8) ......... 8
THE FTS ........................................................ 9~11
DISASSEMBLY INSTRUCTIONS ..................................... 12
ADJUSTING AND CHECKING THE MECHANISM SECTION .............. 13~15
ADJUSTING THE ELECTRICAL SECTIONS ........................... 16~19
PARTS LIST OF MECHANISM UNIT ................................. 20~2I
PARTS LIST OF EXPLODED VIEW .................................. 21~22
PARTS LIST OF P.C. BOARD ....................................... 23~27
EXPLODED VIEW OF MECHANISM UNIT ............................ 28
EXPLODED VIEW OF CABINET AND CHASSIS GROUP ................. 29~30
CONNECTIONS OF P.C. BOARD ..................................... 31~32
SCHEMATIC DIAGRAM OF LOGIC AND POWER UNIT ................. 33~34
SCHEMATIC DIAGRAM OF AUDIO AMP ............................. 35~36
SCHEMATIC DIAGRAM OF DOLBY AMP ............................. 37
P.C. BOARD OF KU-0435 AUDIO AMP. UNIT .......................... 38
P.C. BOARD OF KU-0422 AUDIO AMP. UNIT .......................... 39~40
P.C. BOARD OF KU-O423 DOLBY AMP. UNIT .......................... 41~42
P.C. BOARD OF KU-0421 LOGIC AND POWER UNIT ................... 43~44

P.C. BOARD OF KU-0426 P.L.S. DD UNIT, AND
KU»0439 LEADER DETECTOR UNIT,
KU-O434 OUARTS LOCKED UNIT AND
KU-O446/0447 POWER WIRING UNIT .................. 45

MAIN FEATURES

Three head system with recording/playback combination I New non-slip reel drive mechanism.

head, capable of metal tape applications.

I Dolby type B and type C.

FTS tuning system with microprocessor (DR-F7/F8l. '
l Double Dolby systems and separate MPX filter switch.

Flat Twin DD motor with IC logic feather touch con-

trols. I DENON original PAUSE/MUTE button.
Quartz Lock Flat Twin DD motor (DR Newly developed tape tension servo sensor. l Timer recordings and timer playback facilities.
DC audio amplifier. l Front panel remote control jack.