Sharp GF-500 Service Manual

st-i~~~ SERVICE MANUAL :i
OUTSTANDING RECEPTION THE WORLD OVER
ATSM882109RCS
This Service Manual omits the descriptions about the adjustment
and block diagram of the Radio (High Frequency) Circuit, and for
their details, refer to the GF-54542 Service Manual (ATSM182013-
RCS) or GF-5454 Service Manual (ATSM382047RCT).
In the interests of user-safety the set should be
restored to its original condition and only parts
identical to those specified be used.
INDEX TO CONTENTS
SPECIFICATIONS 2
POWER SUPPLY/VOLT& .iiLi&i&i ’ : : : : : : : : : : : : : : : : : : : : : : : : : : : : 2
DIAL CORD STRINGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
NAMES OF CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
DISASSEMBLY
.*...............................,
4
AUDIO BLOCK DlAikil ’ : : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
CIRCUIT CONSTRUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
APPS FLOW CHART
.7,8
MECHANICAL ADJUSiM’Efi- ’ : : : : : : : : : : : : : : : : : : : : : : :‘: : : : : : : : : : . 9
CHECKING OF AUDIO (LOW FREQUENCY) CIRCUIT . . . . . . . . . . . . . . . . . . . .lO
SCHEMATIC DIAGRAM (l/Z), (Z/Z) . . . . . . . . . . . . . . . . . . . . . . . . . . 11,12,15
WIRING SIDE OF PRINTED WIRING BOARD (l/Z), (Z/Z) . . . . . . . . . . , . . . . . 13,14,16
SCHEMATIC DIAGRAM AND WIRING SIDE OF PRINTED WIRING BOARD AT
POWER SUPPLY SECTION OF GF-500 . . . . . . . . . . . . . . . . . . . . . . . . . . . _ .17
AC POWER SUPPLY CORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .I7
NOTES ON SCHEMATIC DIAGRAM
18
DECK 1 MECHANISM EXPLODED Vii : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 19
DECK 2 MECHANISM EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
CABINET EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21,22
REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23% Back
SHARP CORPORATION
SHARP ELECTRONICS CORPORATION 1.

Sharp GF-500 Specifications

General

Brand	Sharp
Model	GF-500
Category	Stereo System
Language	English

Summary

GENERAL SPECIFICATIONS

GENERAL

Covers general characteristics, power sources, speakers, output power, and semiconductor components.

POWER SUPPLY & OPERATION

VOLTAGE SELECTION

Instructions on adjusting the unit's voltage setting for safe operation.

UNIT DISASSEMBLY STEPS

CIRCUIT CONSTRUCTION DETAILS

APPS SYSTEM OPERATION

Explanation of the APPS system for automatic tape program detection and stopping.

MECHANICAL ADJUSTMENT GUIDELINES

TAPE SPEED CALIBRATION

Guide for adjusting tape speed for both high and normal speed operations.

HEAD AZIMUTH ALIGNMENT

MAIN CIRCUIT SCHEMATICS

MAIN SCHEMATIC DIAGRAM (1/2)

First segment of the main circuit schematic diagram.

MAIN SCHEMATIC DIAGRAM (2/2)

Second segment of the main circuit schematic diagram.

REPLACEMENT PARTS IDENTIFICATION

REPLACEMENT INTEGRATED CIRCUITS

List of replacement integrated circuits with their part numbers and descriptions.

REPLACEMENT TRANSISTORS

List of replacement transistors with their part numbers and descriptions.

REPLACEMENT DIODES

List of replacement diodes with their part numbers and descriptions.

REPLACEMENT CAPACITORS

List of replacement capacitors with their part numbers and descriptions.

ADDITIONAL REPLACEMENT PARTS

REPLACEMENT RESISTORS

List of replacement resistors with part numbers and descriptions.

REPLACEMENT ELECTROLYTIC CAPACITORS

List of replacement electrolytic capacitors with part numbers and descriptions.

REPLACEMENT PARTS LIST CONTINUED

REPLACEMENT ICs AND TRANSISTORS

Detailed listing of replacement integrated circuits and transistors.

REPLACEMENT DIODES AND CAPACITORS

REPLACEMENT PARTS: RESISTORS

RESISTOR PART NUMBERS

Comprehensive list of replacement resistors with their part numbers and specifications.

MISCELLANEOUS AND MECHANICAL PARTS

MECHANICAL COMPONENT LISTINGS

MECHANICAL PARTS DETAILS

OTHER CIRCUITRY AND MECHANICAL PARTS

SWITCHES AND MOTORS LIST

LABELS, MANUALS, AND ASSEMBLIES