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General| Reel Size | 7-inch |
|---|---|
| Signal to Noise Ratio | 50 dB |
| Track System | 4-track, 2-channel stereo |
| Tape Speeds | 3.75 / 7.5 ips |
| Frequency Response | 30 Hz - 20 kHz |
| Inputs | Line In |
| Outputs | Line Out |
| Head Configuration | Record/Playback, Erase |
| Semiconductors | Transistors |
In-Line 4-track stereo/monaural CROSS-FIELD HEAD Recording System.
In-Line 4-track stereo/monaural playback system.
Reel: 3 speeds (1-7/8, 3-3/4, 7-1/2 ips); Cartridge: 3-3/4 ips.
Less than 0.12% at 7-1/2 ips (Reel Playback only).
30 to 22,000 Hz. ±3 dB at 7-1/2 ips.
Reel: Better than 46 dB Forward Operation.
Capstan Motor: Hysteresis Synchronous 3-speed; Reel Motor: Two 6-pole eddy current motors.
List of specific transistor types and quantities.
110W (X-1810D 95W).
Method for measuring tape speed variation using pre-recorded or timing tape.
Method for measuring tape speed variations using a 3,000 Hz pre-recorded tape.
Procedure to measure signal to noise ratio using a 250 Hz sine wave.
Method to measure distortion using a 1,000 Hz sine wave.
Procedure to measure output power using a 250 Hz sine wave.
Method to measure signal leakage between tracks using a 1,000 Hz signal.
Procedure to measure frequency response from 30 Hz to 23,000 Hz.
Describes operation when the Playback/Record Lever is set to PLAY.
Explains the transition from forward to reverse playback mode.
Details the process of switching from reverse to forward playback.
Describes the operation when the Fast Forward/Rewind Lever is set to "F. Fwd".
Describes the operation when the Fast Forward/Rewind Lever is set to "RWD".
Explains how the mechanism stops automatically when tape breaks or ends.
Details the mechanism for switching between record and playback modes.
Explains the automatic stop function for cartridge operation.
Adjusting the height of Rec/Playback and Erasing heads for proper tape contact.
Aligning heads for maximum output and correct playback across tape width.
Adjusting cartridge head azimuth and height for optimal performance.
Separating head blocks for easier adjustment and fine-tuning of cartridge heads.
Procedure for measuring and adjusting brake tension using a tension gauge.
Adjusting reel table height to ensure proper reel seating.
Method to adjust the recording bias frequency using an oscillator and oscilloscope.
Procedure for adjusting bias voltage using a V.T.V.M.
Steps to set the line output level for reel and cartridge playback.
Guidelines for lubricating motor, flywheel, and pinch wheel every 500 hours.
Procedure for cleaning heads, rollers, and bearings with alcohol.
Diagram showing component layout of the system control board.
Diagram showing component layout of the spark quencher board.
Diagram showing component layout of the equalizer board.
Diagram showing component layout of the headphone out board.
Diagram showing component layout of the pre-amplifier board.
Diagram showing component layout of the cartridge board.
Diagram showing component layout of the power source board.
Diagram showing component layout of the mode switch board.
Diagram showing component layout of the main amplifier board.
Diagram showing component layout of the oscillator board.
Diagram showing component layout of the out switch board.
Troubleshooting common problems related to the tape transport mechanism.
Troubleshooting issues within the amplifier during playback.
Troubleshooting issues related to recording audio onto tape.
Troubleshooting issues specific to cartridge operation.
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