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Manuals
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Akai Manuals
Tape Deck
4000DB
Service manual
Akai 4000DB Service Manual
Stereo
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Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
Specifications
D.C. Resistance of Various Coils
Measuring Method
Tape Speed Deviation
Wow and Flutter
Frequency Response
Total Harmonic Distortion Factor
Cross Talk
Erase Ratio
Dismantling of Unit
Mechanism Adjustment
Punch Wheel Pressure Measurement
Supply Reel Shaft Assembly Adjustment
Take-Up Reel Shaft Assembly Adjustment
Drive Belt Position Adjustment
Flywheel Loose Play Adjustment
Adjustment of Idler Position at Fast Forward Mode
Automatic Shut-Off Operating Point Adjustment
Shifter Lever Position Adjustment
Head Adjustment
Head Height Adjustment
Head Azimuth Alignment Adjustment
Amplifier System Adjustment
Connection of Various Instruments
Adjustment Semi-Fixed Resistor and Trimmer Condenser Position
Prior to Adjustment
Playback Level Adjustment
Monitor Level Adjustment
Recording Level Adjustment Using Low Noise Tape
Recording Level Adjustment Using Wide Range Tape
Frequency Response Adjustment
Dolby NR Amp. Adjustment
Recording Dolby NR Circuit Adjustment
Playback Dolby NR Circuit Confirmation
Dolby Noise Reduction Circuit Operation
Recording Dolby NR Circuit Operation
Playback Dolby NR Circuit Operation
Composite Views of Component S
Pre Amp. P.C. Board LE-5306
Dolby NR P.C. Board LE-5307
OSC. & Power Supply P.C. Board LE-5021
Parts List
How to Use this Parts List
Electrical Parts Table
Illustration of Head Block
Head Block
Reel Table Block
Illustration of Reel Table Block
Illustration of Motor Block
Illustration of Flywheel/Belt Change Lever Block
Illustration of Switch Block
Illustration of Mech. Assembly Block
Photo of Pre-Amp. P.C. Board Block
Photo of Osc. Power Supply P.C. Board Block
Photo of Dolby P.C. Board Block
Photo of Amp. Assembly Block
Photo of Final Assembly Block
Index
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Table of Contents
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Specifications
3
Tape Speed Deviation
4
Parts List
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