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General| Brand | Panasonic |
|---|---|
| Model | SB-WVK91 |
| Category | Stereo System |
| Language | English |
Safety guidelines and procedures before starting repairs.
Guidelines for safe servicing, handling, and leakage current checks.
Procedure for measuring leakage current under operating conditions.
Techniques to prevent component damage from static discharge.
Precautions for handling the optical pickup unit during repair.
Procedures for grounding to prevent ESD.
Warnings and guidelines regarding the laser diode's safety.
General flowchart outlining the steps for diagnosing and repairing the unit.
Methods to identify the faulty component or area of the unit.
Table detailing checking points, possible faults, reasons, and countermeasures.
Continuation of troubleshooting table for deck and panel circuits.
Procedure to diagnose issues with the optical pick-up unit.
Methods to determine if the laser diode has been destroyed or damaged.
Steps to perform self-diagnosis and tilt adjustment for the optical pickup.
Safety and handling notes before replacing the optical pickup.
Steps for replacing the optical pickup mechanism.
Steps to check main circuit boards like Power, Speaker, Transformer, etc.
Instructions for checking panel, mic, deck, and mechanism circuit boards.
Procedure for adjusting the head azimuth for optimal playback.
Steps to adjust tape speed for DECK 2 and verify for DECK 1.
Steps for aligning the AM-IF and AM RF sections of the tuner.
Schematic showing the circuit for the optical pickup unit.
Schematics illustrating the DVD module's internal circuitry.
Schematics detailing the main audio and control circuits.
Schematics for the power supply and voltage regulation circuits.
Detailed schematic of the unit's power supply circuitry.
Schematic illustrating the speaker output and amplification circuits.
Component layout diagram for the DVD module's top side.
Component layout diagram for the main circuit board.
Component layout diagram for the power circuit board.
Component layout diagram for the speaker circuit board.
Visual identification and pinouts for key electronic components.
Detailed list of pin assignments and functions for the main microprocessor.
General notes on identifying and replacing parts, including safety warnings.
Detailed list of all part numbers and descriptions for the cassette deck.
Comprehensive list of part numbers and descriptions for the DVD loading mechanism.
