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SX-1250
Pioneer SX-1250 Stereo Receiver Manuals
Manuals and User Guides for Pioneer SX-1250 Stereo Receiver. We have
4
Pioneer SX-1250 Stereo Receiver manuals available for free PDF download: Service Manual, Operating Instructions Manual
Pioneer SX-1250 Service Manual (107 pages)
AM/FM Stereo receiver
Brand:
Pioneer
| Category:
Stereo Receiver
| Size: 36.32 MB
Table of Contents
Contents
2
Specifications
4
Hex Wrench
5
Front Panel Facilities
6
Function Selector Buttons
6
Tape Duplicate Switch/Adaptor Switch
6
Volume Control and Audio Muting Switch
6
Front Panel Controls
7
Connecting Diagram
8
Tuner Circuit Descriptions
9
Circuitry of FM Front End
9
Block Diagram for HA1137
9
FM if Section
9
Switching Signal Generator
10
Demodulator
10
Automatic Stereo Detector
10
Block Diagram for HA1196
10
Basic Circuitry of Demodulator
11
FM Muting Circuit
11
Multipath Monitor Circuit/Am Tuner
11
Block Diagram for HA1138
11
Equalizer Amplifier Schematic Diagram
12
Tape and Adaptor Circuits
12
MODE Switch
12
Balance/Tone Control
13
Midrange Operation of NFB Type Tone Control Circuit
13
Low/High Frequency Operation
13
Muting Circuit/Loudness Circuit
13
Filter Circuits
14
Schematic Diagram for Power Amplifier
14
Tone Defeat Circuit
14
Speakers Switches
15
Protection Circuit Block Diagram
15
Relay Driver Circuit Schematic Diagram
15
Overload Detector Circuit
15
Center Point Potential Detector Circuit
16
Power Supply Circuit
16
Inrush Current Suppressor Circuit
16
Level Diagram
17
Block Diagram
18
Disassembly
19
Front Panel Disassembly
20
Front Panel Parts Location
21
Rear Panel Parts Location
22
Top View Parts Location
23
Bottom View Parts Location
24
Front View
25
AM Tuner Adjustment
26
FM Tuner Adjustment
27
Tuner Assembly
27
Multiplex Decoder
27
Power Amplifier Adjustment
29
Stabilizer Adjustment
29
Dial Cord Stringing
30
Exploded Views
31
Exploded Views: Exterior
32
Exploded Views: Top Side Component (Front)
33
Exploded Views: Top Side Component (Rear)
34
Exploded Views: Bottom Side Components
35
Exploded Views: Rear Panel Components
36
Exploded Views: Flat Amplifier Assembly (AWG-042)
37
Exploded Views: Control Amplifier Assembly (AWG-041)
37
Exploded Views: Switch Assembly (AWS-094)
38
Schematic Diagrams, P.C. Board Patterns and Parts Lists
39
External Appearance of Transistors and Ics
40
Schematic Diagram
41
HA1137 Internal Circuitry of Integrated Circuits
42
HA1138 Internal Circuitry of Integrated Circuits
42
HA1196 Internal Circuitry of Integrated Circuits
42
The Circuit of FM Front End (AWB-023)
43
Tuner Assembly Circuit (AWE-068)
44
Parts List of Tuner Assembly (AWE-068)
46
De-Emphasis Switch Assembly (AWX-099)
48
Equalizer Amplifier Assembly (AWF-021)
49
Parts List of Equalizer Amplifier Assembly (AWF-021)
51
Function Switch Assembly (AWS-094)
53
Parts List of Function Switch Assembly (AWS-094)
53
Flat Amplifier Assembly (AWG-042)
55
Parts List of Flat Amplifier Assembly (AWG-042)
57
5P Connector Assembly (AWX-062)
59
Parts List of 5P Connector Assembly (AWX-062)
59
Control Amplifier Assembly (AWG-041)
60
Parts List of Control Amplifier Assembly (AWG-041)
62
Filter Amplifier Assembly (AWM-089)
64
Parts List of Filter Amplifier Assembly (AWM-089)
66
Microphone Jack Assembly (AWX-097)
67
Parts List of Microphone Jack Assembly (AWX-097)
67
Power Amplifier Assembly (AWH-048)
68
Parts List of Power Amplifier Assembly (AWH-048)
70
Speakers Switch Assembly (AWS-095)
72
Parts List of Speakers Switch Assembly (AWS-095)
72
Protection Circuit Assembly (AWM-091)
74
Parts List of Protection Circuit Assembly (AWM-091)
76
Stabilizer Assembly (AWR-106)
77
Parts List of Stabilizer Assembly (AWR-106)
79
Power Supply Assembly (AWR-107)
80
Parts List of Power Supply Assembly (AWR-107)
80
Packing
82
Parts List of Exploded Views
83
Supplements for SX-1250/HG and SX-1250/S
85
Schematic Diagram for SX-1250/HG
87
Schematic Diagram for SX-1250/S
88
De-Emphasis Switch Assembly (AWX-101, for S Type)
89
Parts List of De-Emphasis Switch Assembly (AWX-101, for S Type)
89
Speakers Switch Assembly (AWS-098, for HG Type)
90
Parts List of Speakers Switch Assembly (AWS-098, for HG Type)
90
Power Supply Assembly (AWR-108, for HG Type)
92
Parts List of Power Supply Assembly (AWR-108, for HG Type)
92
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Pioneer SX-1250 Service Manual (124 pages)
Brand:
Pioneer
| Category:
Stereo Receiver
| Size: 16.57 MB
Pioneer SX-1250 Service Manual (48 pages)
Brand:
Pioneer
| Category:
Stereo Receiver
| Size: 4.02 MB
Table of Contents
Table of Contents
2
1 Specifications
4
2 Front Panel Facilities
6
3 Connection Diagram
9
Tuner Section
11
Audio Section
14
P R O T E C T I O N C I R C U I T
17
5 Level DI a Gra M
19
7 Dlsassembly.
25
8 Parts Location
25
Frontpanelview
25
Rear Panel View
27
Bottom View
29
Front View
31
9 Adjustments
33
AM Tuner
33
F M T U N E R
34
P O W E R a M P L I F I E R
36
S T a B I L I Z E R
36
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Pioneer SX-1250 Operating Instructions Manual (23 pages)
Brand:
Pioneer
| Category:
Stereo Receiver
| Size: 2.71 MB
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