Sharp GF-500Z User 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-500Z Specifications

General

Model	GF-500Z
Brand	Sharp
Country	Japan
Tuner	AM/FM
CD Player	No
Cassette Deck	Yes
Inputs	Microphone
Power Supply	AC 220-240V, 50/60Hz
Power Source	AC or Batteries

Summary

Specifications

General Specifications

Details general physical and power attributes of the device.

Tape Recorder/Player Specifications

Specifies technical performance parameters for tape recording and playback functions.

Radio Specifications

Lists the operational frequency bands for the radio reception.

Power Supply and Voltage Selection

Power Supply Operation

Explains how the unit operates using different power sources.

Voltage Selection Procedure

Guides users on how to select the correct voltage for operation.

Names of Controls

Front Panel Controls

Top Panel Controls

Audio Block Diagram

Audio Signal Flow

Illustrates the flow of audio signals through different circuits.

Circuit Construction

Tape Speed Control

APPS Operation

APPS Flow Chart

APPS Logic

Visualizes the decision-making process for the APPS function.

Schematic Diagram (1/2)

Audio Circuit Schematic

Provides the circuit diagram for the audio processing stages.

Power and Control Circuits

Shows the schematic for power supply and control circuitry.

Wiring Side of Printed Wiring Board (1/2)

Front/Top P.W.B. Wiring

Illustrates the wiring layout for the front and top printed circuit boards.

Rear/Bottom P.W.B. Wiring

Shows the wiring layout for the rear and bottom printed circuit boards.

Schematic Diagram and Wiring Side of Printed Wiring Board at Power Supply Section of GF-500

Power Supply Schematic and Wiring

Details the circuit and wiring for the unit's power supply.

Deck 1 Mechanism Exploded View

Deck 1 Exploded Diagram

Provides a detailed exploded view of the Deck 1 mechanism parts.

Deck 2 Mechanism Exploded View

Deck 2 Exploded Diagram

Offers a detailed exploded view of the Deck 2 mechanism parts.

Replacement Parts List

Integrated Circuits

Transistors