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Technics ST-HD550 User Manual

Technics ST-HD550
24 pages
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Technics ST-HD550 Specifications

General IconGeneral
TypeStereo Tuner
Tuning RangeFM, MW
Output500mV
FM Tuning Range87.5 - 108 MHz
Distortion0.3% (FM)

Summary

Specifications

Pre-amplifier section

Input sensitivity and impedance for the pre-amplifier section.

Tuner section

FM frequency range and antenna terminal specifications.

Timer section

Details about the clock and timer functions.

General

Physical dimensions and weight of the unit.

Safety Warning

Manual Information

1 Note

Reference to another service manual for accessories and packaging.

2 Before Repair

Important considerations before commencing repair work.

3 Location of Controls

Identifies and describes the main controls on the unit.

4 Operation Checks and Component Replacement Procedures

4.1. Checking for the FL P.C.B.

Steps for checking the FL (Fluorescent Display) Printed Circuit Board.

4.2. Checking for the main P.C.B.

Steps for checking the main Printed Circuit Board.

5 To Supply Power Source

6 Self-Diagnostic Function

6.1. To display the malfunction code

Procedure to display error codes indicating malfunctions.

6.2. To return to the normal display

Steps to exit self-diagnostic mode and return to normal operation.

6.3. Display contents

Information regarding the display of diagnostic codes, including U70 and F61 errors.

7 Type Illustration of ICs, Transistors and Diodes

8 Schematic Diagram Notes

Explains conventions and important notes for schematic diagrams.

9 Schematic Diagram

10 Printed Circuit Board Diagram

11 Wiring Connection Diagram

12 Block Diagram

13 Terminal Function of ICs

13.1. IC601 (C2BBGF000267): System Control/FL Drive

Detailed pin functions for the IC601 system control chip.

14 Replacement Parts List

15 Cabinet Parts Location

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