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General| Type | Cassette Player |
|---|---|
| Brand | Sony |
| Model | WM-FS111 |
| Tuner | FM/AM |
| Power Supply | 2 x AA Batteries |
| Headphone Jack | 3.5mm |
| Features | Auto-reverse |
| Wow and Flutter | 0.15% (WRMS) |
| Battery Life | Approx. 20 hours playback |
Instructions for routing the wire assembly correctly during repair.
Steps to protect parts from water damage, including grease application.
Detailed steps for removing the cassette holder and dial scale assembly.
Procedure for removing the main unit assembly and headphone board.
Procedure to remove the main board, including necessary desoldering.
Procedure for disassembling the tape mechanism deck.
Diagram and explanation of belt threading for proper drive function.
Procedure for accessing and removing the magnetic playback head assembly.
Procedures for adjusting tape speed using a frequency counter.
Adjustments for AM/FM IF, tracking, and frequency coverage.
Overall system block diagram showing major functional blocks and signal paths.
Diagram showing component placement on the main and headphone boards.
Detailed electronic schematic illustrating circuit connections, components, and values.
Internal block diagrams for key integrated circuits, detailing their functions.
Exploded view of the cassette holder assembly with part identification.
Exploded view of the main board assembly and related components.
Exploded view of the rear cabinet assembly and its constituent parts.
Exploded view of the mechanism deck section, showing core mechanical parts.
Exploded view of the second part of the mechanism deck with detailed components.
Lists main electrical components including capacitors and semiconductors.
Lists filters, connectors, variable capacitors, diodes, ferrite beads, ICs, jumper chips, and resistors.
Lists switches, transformers, thermistors, vibrators, miscellaneous parts, and accessories.
