Pioneer SG-90 User Manual

Operating
Instructions
GRAPHIC EQUALIZER
GS-90
(Photograph shows BLACK finished model.)
LINE VOLTAGE SELECTOR SWITCH
Thank you for buying this Pioneer product.
Please read through these operating instructions and then you will
know how to operate your model properly. After you have finished
reading the instructions, put them away in a safe place for future
reference.
These operating instructions are based on the model KU, and they
ean be used for the KC, HEM, HB, YP, S, S/G models. The dif-
ferences between the models are given below.
KU and KC models:
For U.S.A. and Canada (‘KU’ or ‘KC’ stamped on packing case):
power line voltage is a.c. 120 volts.
HEM model:
For Europe (‘HEM’ stamped on packing case): power line volt-
age is a.c, 220 volts ~,
HB model:
For U.K. (’HB’ stamped on packing case): power line voltage is
a.c. 240 volts ~.
YP model:
For Australia ("YP’ stamped on packing case): power line voltage
is a.c. 240 volts ~.
S and S/G models:
For destinations excluding above (S or S/G stamped on packing
case); A 2-point (* a.c. 110/120/220/240 volts) voltage selector
switch is provided.
[For KC model]
CAUTION: to prevent ELECTRIC SHOCK DO NOT
USE THIS (POLARIZED) PLUG WITH AN EXTENSION CORD,
RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN
BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.
ATTENTION: pour prevenir LES CHOCS ELEC-
TRIQUES NE PAS UTILISER CETTE FICHE POLARISEE AVEC
UN PROLONGATEUR UNE PRISE DE COURANT OU UNE
AUTRE SORTIE DE COURANT, SAUF Si LES LAMES PEUVENT
ETRE INSEREES A FOND SANS EN LAISSER AUCUNE PARTIE
A DECOUVERT.
a CONTE NTS
Rear Panel Facilities and Connections ..
Basic Connections
Connection with a Double Deck
Front Panel Facilities
Operating the Graphic Equalizer
Mixing
Regarding the Auto Fader Controls ..........::cssesesseeeee 1
Tape Recording a Record Program or Radio Broadcast
with Equalizer Compensation Added as
Compensating Tape Playback with Equalizer Effects . 15
Ke Performing Tape Editing with Equalizer Effects | ........ 16
Only S and S/G models are provided with this switch but KU, KC and
other modets (HEM, HB, YP) are not provided with this switch,
You will find the line voltage selector switch on rear panel. This switch
has positions for 110V, 120V, 220V and 240V power sources.
Before your model is shipped from the factory , the switch is set to the
power requirements of the destination; nevertheless, you should
check that it is set properly before piugging the power cord into tha
AC outlet. If the voltage is not properly set or if you move to an area
where the voltage requirements differ, adjust the selector switch as
follows. Before adjusting disconnect the power cord.
1. Prepare a medium size screwdriver.
2. Insert the screwdriver into the arrow on the voltage selector and
adjust so that the tip of the arrow points to the voltage value of
your area.
VOLTAGE SELECTOR
IMPORTANT NOTICE [For KU and KC models]
The serial number for this equipment is located on the rear panel.
Please write this serial number on your enclosed warranty card and
keep in a secure area. This is for your security.
WARNING: TO PREVENT FIRE OR
SHOCK HAZARD, DO NOT EXPOSE
THIS APPLIANCE TO RAIN OR
MOISTURE.
Performing Tape Editing with Equalizer Effects Il .
Performing Tape Editing with Equalizer Effects II!
Performing Tape Editing with Equalizer Effects IV
Performing Tape Editing with Equalizer Effects V ...
Recording While Performing Microphone Mixing
with Added Equalizer Compensation ............ccs0eceeees 21
Adding Auto Fader Operation to Record Programs
and Tape Playback While Recording
Specifications ..........cccssseceesseeeee
Block Diagram ..
Troubleshooting
Y) PIONEER:

Pioneer SG-90 Specifications

General

Total Harmonic Distortion	0.005%
Signal to Noise Ratio	110 dB
Input Sensitivity	150 mV
Gain	±12 dB
Band Range	±12 dB
Type	Graphic Equalizer
Input Impedance	50 kΩ
Output Impedance	2.2 kΩ
Output Level	150 mV

Summary

LINE VOLTAGE SELECTOR SWITCH

LINE VOLTAGE SELECTOR SWITCH

Instructions for selecting the correct power line voltage.

IMPORTANT SAFETY WARNINGS

ELECTRIC SHOCK WARNING

Warning to prevent electric shock from the unit's enclosure.

FIRE/SHOCK HAZARD WARNING

Caution against exposing the appliance to rain or moisture.

SAFETY INSTRUCTIONS

General Operation Safety

Covers reading instructions, retention, heeding warnings, and proper usage.

Important Symbols and Warnings

Explains symbols indicating dangerous voltage and important instructions.

FRONT PANEL FACILITIES: Operational Controls

AUTO FADER CONTROL

Controls automatic fade-in and fade-out of audio signals.

GRAPHIC EQUALIZER CONTROLS

Adjusts the frequency response across 17 bands.

FADER CONTROL SECTION

Manages fade-in and fade-out functions for smooth transitions.

OPERATING THE GRAPHIC EQUALIZER

COMPENSATING PLAYBACK FREQUENCY RESPONSE

Adjusts equalizer controls to flatten frequency response peaks and dips.

IMPROVING LISTENING ROOM ACOUSTICS

Guides on using the equalizer to optimize sound based on room acoustics.

OPERATING THE GRAPHIC EQUALIZER (Continued)

COLORING REPRODUCED SOUND

Tips for adjusting frequency bands to enhance specific instruments or vocals.

RECORDING TECHNIQUES WITH GRAPHIC EQUALIZER

Methods for using the equalizer during recording for sound coloring and noise reduction.

MIXING

MIXING OPERATION SEQUENCE

Step-by-step guide for performing mixing operations.

MIXING FUNCTION OVERVIEW

Explains the unit's capability to mix program sources with tape playback.

AUTO FADER CONTROLS

FADE IN AND FADE OUT DEFINITIONS

AUTO FADER OPERATION GUIDE

AUTO FADER CONTROLS (Continued)

AUTO FADER PREPARATIONS

TROUBLESHOOTING

COMMON TROUBLESHOOTING STEPS

Lists common problems, their causes, and suggested remedies.