Arcam D 100 Service Manual
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Page 1
ARCAM
D100 CASSETTE DECK
SERVICE MANUAL
Page 2
D100 SERVICE MANUAL
D100 CASSETTE DECK SERVICE MANUAL Arcam Drawing No. H04/0015 :Issue 1 March 92
CONTENTS
Block Diagram .......................................................... 2
Circuit Description ....................................................... 3
Playback amplifier circuit ............................................ 3
Record amplifier circuit .............................................. 3
Mother PCB Power Supply ........................................... 3
Dolby Boards ..................................................... 4
Calibration Board .................................................. 4
Display Board ..................................................... 5
Control Board ..................................................... 5
ADJUSTING AND CHECKING THE MECHANISM ................................. 9
Exchanging pinch roller ............................................ 9
Checking pinch roller pressure ........................................ 9
Exchanging recording/playback head .................................. 9
Recording/playback head installation ................................... 10
Recording/playback head adjustment ................................... 10
Adjustment ot tilt angle .............................................. 10
Azimuth adjustment ................................................ 11
Height adjustment (with TEAC-94201) .................................. 11
Erase Head Exchange ............................................... 11
Tape guide height check ............................................. 11
Checking recording/playback torque ................................... 11
Back tension torque check for recording/playback ......................... 12
Checking Reel Drive Thrust Movement .................................. 12
FF and REW Torque Check ........................................... 12
FF and REW Time Check ............................................. 12
Accidental erasure prevention, tape type switch function check ............... 12
Pulse detecting LED and reel table clearance check ........................ 12
ADJUSTING THE ELECTRICAL SECTIONS .................................... 13
Equipment necessary tor adjustment ................................... 13
Tape path check ................................................... 14
Azimuth adjustment ................................................ 14
Tape Speed Check and Adjustment .................................... 15
Playback System Adjustment ......................................... 15
Checking playback lrequency characteristics ............................. 15
Recording System Adjustment ........................................ 15
Recording Bias Level Adjustment ...................................... 15
Exploded View of Mechanism ............................................... 17
Frequency Response Limits ................................................ 18
Adjustment 8- Setup Procedure .............................................. 19
Dolby encode characteristics Ior BIC/S NR ..................................... 21
Change of Maine Voltage .................................................. 22
Test Points on Mother PCB ................................................. 23
Test Points on Mother PCB ................................................. 24
D100 Circuit Diagrams .................................................... 25