Pioneer SX-626 User Manual

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SERVICE
MANUAL
AM
/FM
STEREO
RECEIVER
sxr6eEi
KCW,
KUW
FVZW, NBW,
FW
NOTE:
MODEL
SX-626 COMES
IN
FIVE VERSIONS DISTINGUISHED
AS
FOLLOWS:
Round label
on
rear
panel
Voltage Type
KCW
KUW
FVZW
NBW
FW
120V only
120V only
5-position selector
220V
only
5-position seleetor
CSA
approved
(Canada)
UL
approved
(U.S.A.)
FTZ
approved
(West
Germany)
SEMCO
(Sweden),
NEMCO
(Norway)
and
DEMCO
(Denmark)
approved
General export
model
with
de-emphasis
selector
switeh
()rrroNEER'

Pioneer SX-626 Specifications

General

Power Output	27 watts per channel into 8Ω (stereo)
Frequency Response	20Hz to 20kHz
Speaker Load Impedance	4Ω to 16Ω
Tuning Range	FM, MW
Damping Factor	30
Total Harmonic Distortion	0.5%
Signal to Noise Ratio	85dB (line)
Input Sensitivity	2.5mV (MM)
Weight	11.2kg
Channel Separation	45dB (MM)

Summary

Specifications

Power Amplifier Section

Preamplifier Section

FM Tuner Section

AM Tuner Section

Parts and P.C. Board Location

Alignment Procedure

AM Adjustment

Details the procedure for tuning and aligning the AM reception circuit.

FM Adjustment

Outlines the steps for tuning and calibrating the FM reception circuit.

Schematic Diagrams, P.C. Board Patterns and Parts List

Circuit Connection Diagram and Miscellaneous Parts

Tuner Assembly

Presents the schematic and parts list for the tuner section of the receiver.

Equalizer Amplifier Assembly

Provides the schematic and parts list for the equalizer amplifier circuit.

Control Amplifier Assembly

Details the schematic and parts list for the control amplifier circuit.

Power Amplifier Assembly

Power Supply Circuit Assembly