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General| Type | Cassette Player |
|---|---|
| Brand | Sony |
| Model | WM-EX190 |
| Dimensions | 90 x 13.5 x 62 mm |
| Power Supply | 1 x AA battery |
| Features | Mega Bass sound system |
| Battery Life | Approx. 24 hours playback |
| Playback Functions | Play, Stop, Rewind, Fast Forward |
| Headphones | 3.5 mm headphone jack |
Details on the power source and voltage required for the device operation.
Physical size specifications, including width, height, and depth.
Weight of the device, with and without batteries and cassette.
List of items included with the device, such as headphones and belt clip.
Guidelines for repairing flexible circuit boards, including soldering iron temperature.
Precautions for replacing chip components, especially tantalum capacitors.
Step-by-step instructions for disassembling the rear cabinet of the device.
Procedure for removing and accessing the main circuit board.
Instructions for detaching the cassette lid assembly.
Guide for removing the main mechanism deck from the chassis.
Details on removing specific mechanical components like the belt, motor, and head.
Important precautions before performing mechanical adjustments on the device.
Specifications and methods for measuring torque on various drive mechanisms.
Precautions for electrical adjustments, including supply voltage and switch positions.
Step-by-step guide for adjusting the tape playback speed using a test tape.
An overview of the device's internal circuitry and signal flow.
Diagram showing the layout of components and traces on the main circuit board.
Detailed electronic schematic illustrating circuit connections and component values.
Functional block diagram illustrating the internal operations of key integrated circuits.
Exploded view illustrating the parts of the device's cabinet assembly.
Exploded view showing components and their arrangement on the main board.
Exploded view of the first part of the tape transport mechanism.
Exploded view of the second part of the tape transport mechanism.
List of capacitor part numbers, types, values, and specifications.
List of diode part numbers, types, and specifications.
List of integrated circuit part numbers and their functions.
List of connector jack part numbers and their types.
List of jumper resistor part numbers and their default settings.
List of resistor part numbers, values, and tolerance.
List of transistor part numbers and their types.
List of variable resistor part numbers and their resistance values.
List of switch part numbers and their types (e.g., slide, detection).
List of thermistor part numbers and their properties.
List of other electronic components not categorized elsewhere.
List of accessories and packing materials related to the product.
