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Technics SA-EH750 Service Manual

Tuner/amplifier

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Operating instructions manual (51 pages)

Service manual (58 pages)

Table Of Contents

Table of Contents

Specifications
Location of Controls
Tuner Amplifier
Remote Control
Installation
Locating the Components
Placement of Center/Surround Speakers
Connections
Preparing the Remote Control
Battery Installation
Correct Method of Use
External Unit Connections
DVD Player with 5.1 Ch Output
Laser Disc Player/DVD Player (Without 5.1Ch OUT), Etc.
Video Cassette Recorder
Optional Antenna Connections
Turning the Demo Function off (DEMO)
FM Outdoor Antenna
AM Outdoor Antenna
Setting the Time
ECO Mode
To Display the Clock
Listening to Compact Disc
How to Load Cds
To Prevent Damage
Sequential Play
Direct Access Play
Repeat Play
Random Play
Program Play
Boosting the Super Woofer
Using the Built-In Sound Quality/Sound Field Settings
To Release the Equalizer
Varying the Sound Quality with the Manual Equalizer (Manual EQ)
Varying the Sound Quality with the Acoustic Image (AI) Equalizer (3D AI EQ)
Surround Systems
Virtual Rear Surround Effect
Multi Rear Surround Effect
Center Focus Effect
Seat Position Function
Enjoying Sound with 6 Ch Discrete Input
To Adjust the Volume of each Speaker
To Playback a Dolby Surround Source with Dolby Pro Logic
To Turn off Dolby Pro Logic
Enjoying Sound with Stereophonics (Super Surround)
Using the Center Focus Effect
To Turn off the Super Surround Mode
To Adjust the Volume of Surround Speakers
Using the Virtual Rear Surround Effect
Using the Multi Rear Surround Effect
Enjoy the Sound with Simulated Stereo
Using the Seat Position Function
Concerning the Display
To Turn off the Seat Position Mode
Using the External Unit
To Use Headphones
Listening to an External Source
Recording from an External Source
Operation Checks and Component Replacement Procedures
Checking for the Tuner P.C.B. and Power Supply P.C.B.
Checking for the Operation P.C.B.
Checking for the Main P.C.B.
Replacement for the Regulator Transistor
Replacement for the Power IC
Self-Diagnostic Mode
To Display the Malfunction Code
To Return to the Normal Display
Display Contents
Schematic Diagram
Tuner Circuit
Operation Circuit
Main Circuit
Speaker Terminal Circuit
Power Transformer (A) Circuit
Power Transformer (B) Circuit
Printed Circuit Board Diagram
Tuner P.C.B.
Power Supply P.C.B.
Operation P.C.B.
Main P.C.B.
Power Transformer (A) P.C.B.
Power Transformer (B) P.C.B.
Speaker Terminal P.C.B.
Wiring Connection Diagram
Type Illustration of IC's, Transistors and Diodes
Terminal Function of IC's
IC901 (LC8A524A5K01): System Control/Fl Drive
Block Diagram
Replacement Parts List
Cabinet Parts Location
Packaging

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1 Specifications
2 Tuner Amplifier
3 Installation
4 Connections
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Joseph Teleku

February 27, 2025

What type of ic

Technics SA-EH750 Service Manual

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