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Teac X-10R Service Manual

Teac X-10R
66 pages
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TEAC.
SERVICE
MANUAL
X-10R
/X-10
Stereo
Tape
Deck
Effective:
July,
1979
A90026
5704000200
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Teac X-10R Specifications

General IconGeneral
TypeStereo Tape Deck
Track System4-track, 2-channel stereo
Tape Speed3.75 ips / 7.5 ips
InputsLine
OutputsLine Out
MotorCapstan Motor
Reel Size7 inch

Summary

1 Specifications and Service Data

Specifications Overview

Detailed technical specifications for the TEAC X-10R/X-10 tape deck, including reel size, tape speed, inputs, outputs, and motors.

Mechanical Service Data

Mechanical service data including tape speed deviation, wow and flutter, pinch roller pressure, and brake torque.

Electrical Service Data

Electrical service data including frequency response, signal-to-noise ratio, and channel separation.

2 Mechanical Adjustments and Checks

2-1 Control PCB Assy Check

Procedure for checking the Control PCB assembly and its hook-up for proper function.

2-2 Brake Adjustment Procedure

Step-by-step guide for adjusting the brake band bracket and solenoid for correct brake operation.

2-3 Brake Torque Measurement

Methodology for measuring brake torque using a spring scale for forward, reverse, and deviation checks.

2-4 Reel Motor Torque Measurement

Procedure for measuring reel motor torques in various play modes, including take-up and back tension.

2-5 Pause Position Adjustment

Adjusting the pause positioning nut for correct clearance between the capstan shaft and tape.

2-6 Pinch Roller Pressure Stroke Adjustment

Adjusting the pinch roller pressure stroke for proper tape contact and clearance.

2-7 Pinch Roller Pressure Measurement

Measuring pinch roller pressure to ensure correct and equal force for both rollers.

2-8 Tension Arm Height Adjustment

Adjusting tension arm height to ensure proper tape path alignment and prevent curling.

2-9 Tension Arm Force Adjustment

Adjusting tension arm force by changing the spring hook position for correct operation.

2-10 Damper Function Check

Checking the damper string function and tension arm return for smooth operation.

2-11 Reel Table Height Adjustment

Adjusting reel table height to prevent tape rubbing against flanges.

2-12 Stop Sensor Assy Position Adjustment

Adjusting the stop sensor PCB assembly for proper magnetic resistance element clearance.

2-13 Reverse Solenoid Adjustment (X-10R)

Adjusting the solenoid stopper plate to prevent noisy contact in reverse solenoid release.

2-14 Rotating Part Thrust Clearance Checks

Checking thrust clearances for capstan shaft, guide roller, and tension arms.

2-15 Capstan Motor Replacement

Procedure for replacing the capstan motor, including lead wire and washer installation.

2-16 Tape Speed Adjustment

Adjusting tape speed using a frequency counter and oscillator for correct playback speed.

2-17 Wow and Flutter Checks

Measuring wow and flutter using test tapes and a meter for high and low speeds.

2-18 Voltage Conversion (Export Models)

Procedure for converting voltage settings on general export models by adjusting the voltage selector.

2-19 Lubrication Guide

Recommended lubrication points and procedures for maintaining the tape deck's moving parts.

2-20 Head and Tape Path Alignments

Comprehensive guide to head and tape path alignment procedures for optimal performance.

2-20-1 Head Arrangement Overview (X-10R)

Diagram and description of the head arrangement, including head adjusting screws.

2-20-2 Head Regulation Elements

Explanation of head regulation elements: tilt, azimuth, height, and tangency.

2-20-3 Alignment Procedure Guide

Step-by-step instructions for aligning tape heads for optimal performance, including tilt, azimuth, height, and tangency.

Erase Head Height Fine-Adjustment

Fine-adjusting erase head height and correcting tape path for proper operation.

Pinch Roller/Capstan Non-Parallelism Correction

Correcting non-parallelism between pinch roller and capstan spindles to prevent tape curling.

3 Electrical Adjustments and Checks

3-1 Monitor Performance Checks

Procedures for checking monitor performance, including dbx level, output level, VU meter, and microphone input level.

3-2 Playback Performance

Evaluating playback performance, including head azimuth, playback level, frequency response, and phase shift.

3-3 Recording Performance

Assessing recording performance, including bias trap, record head azimuth, record level, and distortion.

3-4 Adjustment and Test Point Locations

Identifying adjustment potentiometers and test points on the circuit boards for calibration.

3-5 Level Diagram

Illustrating signal levels throughout the playback and recording systems for troubleshooting.

4 Exploded Views and Parts Lists

Exploded View-1 (X10-R) and Parts List

Mechanical breakdown and parts list for the X10-R model, covering main chassis components.

Exploded View-2 (X-10) and Parts List

Mechanical breakdown and parts list for the X-10 model, covering main chassis components.

Exploded View-3 and Parts List

Mechanical breakdown and parts list for components related to reel drive or motor assembly.

Exploded View-4 and Parts List

Mechanical breakdown and parts list for chassis or mounting components.

Exploded View-5 (X-10R) and Parts List

Mechanical breakdown and parts list for components specific to the X-10R model.

Exploded View-6 (X-10) and Parts List

Mechanical breakdown and parts list for components specific to the X-10 model.

Exploded View-7 (X-10R) and Parts List

Mechanical breakdown and parts list for internal mechanisms of the X-10R model.

Exploded View-8 (X-10) and Parts List

Mechanical breakdown and parts list for internal mechanisms of the X-10 model.

Control PCB Assy (X-10R) Exploded View and Parts List

Exploded view and parts list for the Control PCB assembly of the X-10R model.

Exploded View-9 (X-10R) and Parts List

Mechanical breakdown and parts list for components specific to the X-10R model, possibly chassis related.

Exploded View-10 (X-10) and Parts List

Mechanical breakdown and parts list for components specific to the X-10 model, possibly chassis related.

5 PC Boards and Parts Lists

REC AND PLAY AMPL PCB ASSY (X-10R) Component List

Component layout and parts list for the Record/Play Amplifier PCB of the X-10R model.

REC AND PLAY AMPL PCB ASSY (X-10) Component List

Component layout and parts list for the Record/Play Amplifier PCB of the X-10 model.

CONTROL PCB ASSY (X-10R) Component List

Component layout and parts list for the Control PCB assembly of the X-10R model.

CONTROL PCB ASSY (X-10) Component List

Component layout and parts list for the Control PCB assembly of the X-10 model.

MIC AMP, VR, and IN/OUTPUT PCB Component Lists

Component lists for the Microphone Amplifier, Volume Control, and IN/OUTPUT (DBX) PCBs.

Connector, Speed Switch, and Stop Sensor PCB Component Lists

Component lists for Connector, Speed Switch, and Stop Sensor PCBs.

6 Schematics and Diagrams

Tape Transport Schematic Diagram

Schematic diagram illustrating the tape transport mechanism, including PCB connections and controls.

Amplifier Schematic Diagram

Schematic diagram of the amplifier section, detailing signal flow and component connections.

Block Diagram

Functional block diagram showing the overall signal flow and interaction between major circuit sections.

DBX Unit Schematic

Detailed schematic diagram of the DBX noise reduction unit, showing component layout and connections.

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