User Manuals: Tascam 34 Tape Player/Recorder

Manuals and User Guides for Tascam 34 Tape Player/Recorder. We have 1 Tascam 34 Tape Player/Recorder manual available for free PDF download: Operation & Maintenance Manual

Tascam 34 Operation & Maintenance Manual

Tascam 34 Operation & Maintenance Manual (45 pages)

Brand: Tascam | Category: Tape Deck | Size: 2 MB

Table of Contents

Maintenance
2
Specifications
3
Service Chart
5
Circuit Description
7
Logic Used in the Tape Deck
7
System Control IC
7
Pin Assignment and Their Functions
7
Block Diagram
8
Input Signals and Resulting Modes
8
Mode Transition
9
Operation with more than One Input Signal
9
Input/Output Levels
9
Power Shut-Off Circuit
10
Initial Reset Circuit
10
System Control IC Input Circuit
10
Capstan and Brake Solenoid Drive Circuit
11
Flashing & Steady State Voltage
11
Solenoid Drive Circuit
12
Reel Motor Drive Circuit
13
Reproduce Operation
13
Tape Direction Sensing and Counter Clock Generation Circuit
15
F.F. and Rew Operation
16
Electrical Brake System
16
FF and REW Mode Operation Control Circuit
17
Counter Zero Return
18
Edit Control Circuit
21
Rec and Play Mute Signals
21
Display Circuit
22
Record LED
22
Pause LED
22
Amplifier Circuit Description
23
Power Muting Circuit
23
Bias and Record Control Circuit
24
Record Circuit Switching Timing Diagram
25
Reproduce Amplifier Circuit
26
Amplifier Circuit Diagram
27
SYNC Relay Operation Timing Chart
29
Level Diagram
29
Checks and Adjustments
30
Essential Test Equipment Required
30
Removing the Panels of the Deck
31
Capstan Thrust Clearance
32
Brake Mechanism
32
Brake Torque
32
Reel Motor Torque
33
Take-Up Torque
33
Pinch Roller Pressure
34
Back Tension
34
Reel Table Height Adjustment
35
Tape Speed
35
Wow and Flutter Check
35
Record/Reproduce Amplifier Checks and Adjustments
36
Preliminary Adjustments
36
Tape Path
36
Head Azimuth Adjustment
36
Input Level Calibration
38
Meter Calibration
38
Reproduce Level Calibration
38
Reproduce Frequency Response
39
Bias Tuning and Bias Trap Adjustments
39
Recording Bias Adjustment
40
Recording Level Adjustment
41
Frequency Response
41
Signal-To-Noise Ratio
42
Erase Ratio
42
Crosstalk Measurement Set-Up
42
Adjacent Channel Crosstalk
44
Distortion
44
Distortion Measurement Set-Up
44

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