Sharp OPTONICA SM-1616H User Manual

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SERVICE
MANUAL
SM-1616H SM-1616HR
STEREO AMPLIFIER
MODEL
SM-1616H
(Silver Panel)
SM-1616HB
(Black Panel)
In the interests of user-safety the set should
be restored to its original condition and only
parts identical to those specified be used.
SPECIFICATIONS
GENERAL DESCRIPTION
AC 110/220/240V, 50/60Hz
380W
2-IC (Integrated circuit)
24-Transistor
2-FET
17-Diode
Width: 442mm (17-7/16”")
Height: 144mm (5-11/16”)
Depth: 253 mm (10’)
7.8 kg (17.2 Ibs.)
Power source:
Power consumption:
Semiconductors:
Dimensions:
Weight:
MAIN AMPLIFIER
Circuit: Differential amplifier, complimentary
system, OCL (Output Capacitor Less)
Continuous power output (at 1kHz):
2 x 45W/4 ohms, Both channels driven,
0.15% distortion
2 x 40W/8 ohms, Both channels driven,
0.2% distortion
Continuous power output (20Hz ~ 20kHz):
2 x 38W/4 ohms, Both channels driven,
0.15% distortion
2 x 32W/8 ohms, Both channels driven,
0.2% distortion
Intermodulation
distortion: 0.05% at 20W
Damping factor: More than 40 (at 1kHz, 8 ohms)
Power bendwidth: 20Hz~40kHz
Frequency response: 15Hz~60kHz tae
PRE-AMPLIFIER
Circuit: Direct coupled equalizer circuit, ‘NF’
type tone control
Input sensitivity and input impedance:
PHONO: 2.5mV/50K ohms
AUX: 150mV/SOK ohms
TUNER: 150mV/S50K ohms
TAPE PB 1 and 2: 150mV/50K ohms
TAPE PB
(DIN socket): 150mV/S50K ohms
Output level and loaded impedance:
REC 1 and 2: 150mV/50K ohms
REC (DIN socket): 30mV/80K ohms
Phone overload: 230mV (RMS, 1kHz, 0.1% THD)
RIAA curve deviation: +0.4dB
Frequency response: 15Hz~60kHz +348
(TAPE, AUX, TAPE PB) -
Tone control:
Bass: | +9dB at 100Hz
Treble: +9dB at 10kHz
Low filter: —3dB at 30Hz, 6dB/oct
High filter: —3dB at 7kHz, 6dB/oct
SHARP
CORPORATION
OSAKA,
JAPAN

Sharp OPTONICA SM-1616H Specifications

General

Brand	Sharp
Model	OPTONICA SM-1616H
Category	Amplifier
Language	English

Summary

General Description and Specifications

General Description Details

Covers power source, consumption, semiconductors, dimensions, and weight.

Amplifier Specifications

Lists power output, distortion, frequency response, and damping factor.

Input, Tone, and Filter Characteristics

Details input sensitivity, impedance, tone control, and filter settings.

Component Identification and Layouts

Front Panel Controls and Jacks

Identifies front panel components and their functions.

Rear Panel Connections and Terminals

Details rear panel input/output jacks and terminals.

Block Diagram Overview

Signal Path and Power Flow

Illustrates the overall signal path and power supply connections.

Service Procedures and Voltage Setting

Unit Disassembly Instructions

Provides step-by-step instructions for dismantling the unit.

Mains Voltage Selection Guide

Guide to correctly setting the mains voltage for operation.

Circuit Description - Main Amplifier and Meter

Main Amplifier Circuitry Explained

Explains the differential amplifier and Darlington power pack design.

Meter Circuit Operation

Details how output signals are processed for the output meters.

Circuit Description - Muting and Thermal

Muting Circuit Functionality

Describes the muting circuit's operation during power on/off and thermal events.

Circuit Description - Equalizer and Output

Equalizer Circuit Design

Details the equalizer circuit's stages and components.

IC Output Circuit Handling

Notes on IC replacement and thermal management.

Adjustment and Testing Procedures

Main Amplifier Adjustment Steps

Step-by-step guide for main amplifier adjustments.

Test Signal and Measurement Setup

Describes the setup for signal generator and measurement tools.

Printed Wiring Board Wiring Diagram

Wiring Layout Illustration

Shows the wiring configuration on the P.W. board.

Troubleshooting Common Issues

Problem, Cause, and Correction Chart

Lists common issues, their probable causes, and corrective actions.

Complete Schematic Diagram

Overall Circuit Schematic

Presents the full schematic of the amplifier circuit.

Parts List - Components and Accessories

Electronic Component Part Numbers

Lists electronic components with part numbers and descriptions.

Miscellaneous Parts and Sockets

Details miscellaneous items like covers, sockets, and switches.

Parts List - Integrated Circuit Equivalents

Equivalent Circuit Diagrams

Shows equivalent circuit diagrams for integrated components.

Replacement Parts List

Component Replacement Part Numbers

Lists specific components for replacement with part numbers.

Parts List - Component Categories

Capacitors, Resistors, and Transistors

Lists various passive and active components.

Diodes and Integrated Circuits

Details diodes, ICs, and other miscellaneous parts.

Parts List - Cords and Chassis

AC Cords, Bushings, and Chassis Components

Lists AC supply cords, bushings, and chassis components.