Pioneer SX-750 Service Manual

-
sx-75ct
This
Service
Manual
is
applicable
only
to the KC, KU
model.
CONTENTS
1.
SPECIFICATIONS
BLOCK
DIAGRAM
FRONT
PANEL
FACILITIES
5
7
9
11
2.
3.
4.
5.
CONNECTION
DIAGRAM
CIRCUIT
DISCRIPTIONS
5.7 Protection
Circuit
5.6
Tone
Control
5.9 Power
Supply
5.8 Power
Amplifier
Circuit
5.3 FM
Muting
Circuit
5.5 Microphone
Circuit
5.4 Phono
Equalizer
Amplifier
5.1
AM Tuner
5.2 FM
Tuner
DISASSEMBLY
13
13
15
15
15
15
16
17
17
18
19
20
21
6.
ADJUSTMENTS
6.1
AM
Section
6.2
FM
Section
6.3 MPX
Adjusrment
6.4 Power
Amplifier
Section
7.
8.
9.
10.
DIAL
CORD
STRINGTNG
22
23
24
25
27
29
31
33
35
37
38
39
40
41
42
43
LEVEL
DIAGRAM
PARTS
LOCATION
10.1
Front Panel
View
1O.2 Front
Panel
View
(with
removd
front
panel)
10.3
Top View
10.5
Rear
View
10.4
Bottom
View
1I. EXPLODED
VIEW
11.1 Part
I
11.2 Part
ll
1
1.3
Part
I ll
11.4 Part
lV
11.5
Part
V
1 1.6 Part
Vl
11.7 Part
Vl
I

Pioneer SX-750 Specifications

General

Signal to Noise Ratio	75dB (MM), 90dB (line)
Tuning Range	FM, MW
Damping Factor	30
Power Output	50 watts per channel (8 ohms, 20Hz-20kHz)
Frequency Response	10Hz to 50kHz
Total Harmonic Distortion	0.3%
Input Sensitivity	2.5mV (MM), 150mV (line)
Output	150mV (line)
Speaker Load Impedance	4Ω to 16Ω