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General| Brand | Panasonic |
|---|---|
| Model | KX-FT21BX |
| Category | Fax Machine |
| Language | English |
Lists replacement parts for the digital board.
Warns that the manual is for experienced technicians and improper servicing can cause injury.
Provides a general block diagram illustrating the unit's main components and data flow.
Explains the functions of the control section, including ASIC and its peripherals.
General safety guidelines before servicing the unit.
Details the procedure for performing an insulation resistance test.
Precautions for technicians to prevent recurring malfunctions due to static electricity.
Details the layout and functions of the control panel buttons and displays.
Identifies specific components and their locations for maintenance checks.
Lists items for maintenance checks and their corresponding references.
Summarizes the troubleshooting process and precautions.
Details error messages, their causes, and remedies that users can perform.
Provides steps to remove a jammed document.
Outlines the process of diagnosing and resolving faults.
A table mapping functions and symptoms to relevant troubleshooting pages.
A checklist for performing simple functional checks and judging OK/NG status.
Provides a flowchart for diagnosing issues related to document feeding.
A flowchart for identifying and resolving paper jams in the ADF.
A flowchart for diagnosing and resolving multiple document feeding issues.
A flowchart for diagnosing and resolving skewed document feeding.
Guides troubleshooting for communication failures, referencing specific pages.
A flowchart for diagnosing units that can copy but fail to transmit or receive.
Explains how to output and interpret the journal report for communication errors.
Identifies frequently failing components in the power supply section.
Provides a flowchart for troubleshooting power supply problems.
Provides details on repairing common broken parts like diodes and transistors.
Guides troubleshooting for the digital unit (main board), especially boot-up issues.
Describes the modem's role as an interface for FAX and DTMF.
Explains the operation of the modem circuit for facsimile and DTMF.
