Sony TA-EX66 Service Manual

MICROFILM
AEP Model
UK Model
E Model
SERVICE MANUAL
TA-EX66/EX77
INTEGRATED STEREO AMPLIFIER
TA-EX66/EX77 is the amplifier section
in MHC-EX66, DHC-EX77MD/MD77.
SPECIFICATIONS
Photo: TA-EX77 (AEP, UK model)
General
Power requirements
AEP, UK model: 220 – 230 V AC, 50/60 Hz
HK, SP model: 220 – 240 V AC, 50/60 Hz
Power consumption 125 watts
Design and specifications are subject to change without notice.
• Abbreviation
HK : Hong Kong
SP : Singapore
AEP, UK model:
DIN power output 45 + 45 watts (6 ohms at 1 kHz, DIN)
Continuous RMS power output
60 + 60 watts (6 ohms at 1kHz, 10% THD)
Music power output 105 + 105 watts
HK, SP model:
Continuous RMS power output
55 + 55 watts (6 ohms at 1 kHz, 5% THD)
Inputs
CD IN, MD IN (phono jacks): voltage 450 mV, impedance 47 kilohms
TUNER IN, TAPE IN, VIDEO1 IN, VIDEO2/AUX IN (TA-EX66/
EX77: AEP, UK model), VIDEO2 IN (TA-EX77: HK, SP model) (phono
jacks): voltage 250 mV, impedance 47 kilohms
MIX MIC (phone jack):
sensitivity 1 mV, impedance 10 kilohms or more
Outputs
MD OUT, TAPE OUT, VIDEO1 OUT (phono jacks):
voltage 250 mV, impedance 1 kilohm
PHONES (stereo phone jack):
accepts headphones of 6 ohms or more.
SPEAKER: accepts impedance of 6 to 16 ohms.
Dimensions (w/h/d) incl. projecting parts and controls:
Approx. 280 × 122.5 × 298 mm
Mass Approx. 5.3 kg

Sony TA-EX66 Specifications

General

Type	Stereo Integrated Amplifier
Frequency response	5Hz-100kHz (-3dB)
Total harmonic distortion	0.09% (20Hz-20kHz, 8 ohms)
Input sensitivity	2.5mV (MM), 150mV (line)
Dimensions	430 x 135 x 310mm
Weight	8.5kg
Speaker load impedance	4Ω to 16Ω
Signal to noise ratio	100dB (line)
Signal-to-Noise Ratio	100dB (line)

Summary

Specifications

Power Output

Details DIN, RMS, and Music power outputs for various models.

Inputs

Lists input types, sensitivity, and impedance.

Outputs

Details output voltage and impedance.

General Specifications

Covers power requirements, consumption, dimensions, and mass.

General

Connecting Optional AV Components

Guide on connecting external audio/video devices to the amplifier.

Connecting Audio Components

Instructions for connecting tape decks and other audio sources.

Connecting Other Analog Components

Steps for connecting other analog audio devices.

Connecting Digital Components

Steps for connecting digital sources for recording.

Other Features

Adjusting the Sound

Explains bass/treble control, mute, and direct sound modes.

Singing Along: Karaoke

Guide to using the karaoke feature with microphones.

Mixing and Recording Sounds

Details on how to mix microphone and music for recording.

Disassembly

Case and Front Panel Section

Procedure for disassembling the case and front panel.

Back Panel

Steps for removing the back panel of the unit.

Connector Board

Instructions for detaching the connector board.

Main Board

Procedure for removing the main circuit board.

Diagrams

IC Pin Function Description

Details pin functions for system controller IC101.

IC Block Diagrams

Visual representation of internal IC structures and connections.

Waveforms

Displays signal waveforms for IC101 at specific points.

Circuit Boards Location

Diagram showing the physical placement of various circuit boards.

Schematic Diagram

Complete circuit diagram of the TA-EX66/EX77 amplifier.

Printed Wiring Boards

Layouts and component locations on the printed circuit boards.

Exploded Views

Case, Front Panel Section

Exploded view of the unit's front panel and casing components.

Main Section

Exploded view of the amplifier's main internal components and chassis.

Electrical Parts List