Pioneer SX-6 Service Manual

Service
COMPUTER CONTROLLED
STEREO RECEIVER
X-G
MODEL SX-6 COMES IN FOUR VERSIONS DISTINGUISHED AS FOLLOWS:
Voltage : Remarks
120V only U.S.A. model
110V, 120V, 220V and 240V (Switchable) General export model
110V, 120V, 220V and 240V (Switchable) U.S. Military model
120V only Canada model
This service manual is applicable to the KU type. When repairing the S and S/G types, please see the
additional service manual (ARP-013), and see the ARP-014 for KC type.
For the circuit description, please refer to the model SX-7 service manual (ARP-074).
Ce manuel! d‘instruction se refére au mode de réglage, en francais.
Este manual de servicio trata del método de ajuste escrito en espaiiol.
CONTENTS
1. SPECIFICATIONS .............-....00. 2 7. SCHEMATIC DiIAGRAM................ 7
2. FRONT PANEL FACILITIES. ..........00. 3 8. ELECTRICAL PARTS. .............006. 21
3. BLOCK DIAGRAM..................... 6 9. PACKING 8. 20 20 is, ote cant ties Beh ahe eg Bate WS ahs 25
4. PARTS LOCATION. ..............000005 7 10. EXPLODED VIEWS ...............000- 26
5. P.C. BOARD CONNECTION DIAGRAM....... 9 11. ADJUSTMENTS. 20... 0. eee eee 30
6. MISCELLANEOUS PARTS............... 16 AEGLAGE: oc) eb uPA ous ea fa seh aa 33
ASUST EE 35 sc tec Mints Pee Gehan 36
PIONEER ELECTRONIC CORPORATION --:. Meguro 1~Chome, Meguro-ku, Tokyo 153, Japan
U.S. PIONEER ELECTRONICS CORPORATION 85 Oxford Orive. Moonachie, New Jersey 07074, U.S.A.
PIONEER ELECTRONIC (EUROPE) N.V. Luithagen-Haven 3S, 2030 Antwerp, Belgium
PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 178-184 Boundary Road, Braeside, Victoria 3195, Australia
FL ©JULY 1981 Printed in Japan

Pioneer SX-6 Specifications

General

Type	Stereo Receiver
Tuning range	FM, MW
Power Output	45 watts per channel into 8Ω (stereo)
Frequency Response	20Hz to 20kHz
Input Sensitivity	2.5mV (MM), 150mV (line)
Damping factor	30
Signal-to-Noise Ratio	95dB (line)
Speaker load impedance	16Ω

Summary

Front Panel Facilities

Front Panel Controls Overview

Describes the function of key controls like Power, Bass, Treble, Balance, Muting, and Volume.

Tuning and Input Selection

Explains the operation of tuning switches and the input selector.

Block Diagram

Parts Location

Front and Rear Panel Parts

Illustrates the location of components on the front and rear panels.

Top and Bottom View Parts

P.C. Board Connection Diagram

Electrical Parts

Resistors

Capacitors

Filters, Coils, and Transformers

Semiconductors

Tone Assembly Components

Control Assembly Components

Exploded Views

Interior Components Exploded View

Front and Rear Panel Assembly Exploded View

Parts List of Interior Components

Interior Component Part Numbers

Lists part numbers for interior components.

Adjustments

FM Tuner Adjustments

Procedure for adjusting the FM tuner section.

AM Tuner Adjustments

Procedure for adjusting the AM tuner section.

Idle Current Adjustment

Procedure for adjusting the idle current of the amplifier.