Technics SA-EH770 Service Manual

AD0104055C3
Tuner/Amplifier
SA-EH770
Colour
(S)...................Silver Type
Areas
(GC).................Asia, Latin America, Middle Near East and Africa.
(GN).................Oceania.
SPECIFICATIONS
1

Technics SA-EH770 Specifications

General

Signal-to-Noise Ratio	80 dB
Weight	9.5 kg
Type	Stereo Receiver
Input Impedance	47 kΩ
Tuner Bands	FM / AM
Preset Station Qty	30
Equalizer	Yes
Equalizer Band Qty	5
Power Output	100 Watts
Audio Output Mode	Stereo
Tuning Range	FM: 87.5 - 108 MHz, AM: 530 - 1600 kHz
Tuner Frequency Range	FM: 87.5 - 108 MHz

Summary

Specifications

Amplifier Section Specifications

Details on power output, distortion, and load impedance for amplifier circuits.

Before Repairs

Protection Circuitry

Accessories

Operation Checks and Component Replacement Procedures

Checking for the AC IN P.C.B.

Procedure to inspect the AC input printed circuit board.

Checking for the Operation P.C.B.

Checking for the Main P.C.B.

Replacement for the Regulator Transistor

Steps for replacing the regulator transistor component.

Replacement for the Power IC

Steps for replacing the power integrated circuit component.

To Supply Power Source

Self-Diagnostic Function

To Display the Malfunction Code

Instructions on how to activate and view error codes.

Display Contents Explained

Schematic Diagram

Printed Circuit Board Diagram

Wiring Connection Diagram

Terminal Function of ICs

IC901 (C2BBFD000297): System Control/FL Drive

Detailed pinout and function for the system control IC.

Replacement Parts List

Tuner/Amplifier Controls

Remote Control Functions