Tascam 22 4 Tape Deck Service Manual
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Extracted text from Tascam 22 4 Tape Deck Service Manual (Ocr-read)
Page 1
TEAC Tuscan Seties
2-4
4'Channel Multitrack Recorder/ Reproducer
TEAC CORPORAT|ON
5704007200
Page 2
TABLE OF CONTENTS
MAIN SECTION
I Introduction ...................................... 3
2 Specifications ..................................... 4
3 Parts location ...................................... 6
4 Removal of external components ......................... 7
5 Maintenance ...................................... 8
5-] Test equipment .................................... 8
5-1 -1 Standard equipment ................................. 8
5-142 Test tapes ........................................ 8
5-2 Mechanical adjustments and checks ....................... 9
5-2-1 Capstan thrust clearance .............................. 9
5-2-2 Shut-off switch position ............................... 9
5-2-3 Brake mechanism ................................... 9
5-2-4 Brake torque ...................................... 10
5-2-5 Reel motor torque .................................. 10
5-2-6 Pinch roller pressure ................................. 1 1
5-2-7 Reel table height ................................... 1 1
5-2-8 Tape speed ....................................... 12
5-2-9 Wow and flutter (playback) ............................ 12
5-2-10 Head and tape path alignment ........................... 12
5-2-1 ] Voltage and frequency conversion ........................ 13
5-2-12 Lubrication ....................................... 13
5-3 Electrical adjustments and checks ........................ 14
5-3-1 Precautions ....................................... 14
5-3-2 Monitor performance ................................ 14
5-3-3 Playback performance ................................ 15
5-3-4 Recording performance ............................... 16
5-3-5 SIMUL-SYNC performance ............................ 19
5-4 Adjustment and test point locations ....................... 20
5-5 Level diagram ..................................... 21
5-6 Block diagram ..................................... 22
22-4