Equipment information

Pioneer SX-1250 Receiver
Manufacturer
Pioneer
Model SX-1250
Date
Category: Audio, Video, TV, Multimedia
Group Receiver
Description AM/FM Stereo Receiver
Information
                                    

These manuals are available for the above equipment:

Pioneer -- SX-1250 -- Cirquit Diagram
File name Pioneer-7226-Manual-Page-1-Picture
Manual Type Cirquit Diagram
Pages 3
Size 1.10 Mbytes (1148929 Bytes)
Language english
Revision
Manual-ID/Number
Date
Quality Scanned document, reading badly, partly not readable.
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MD5 452430dc0620ededcdb3c2338725a365
Downloads 95 since 27 September 2015
Information
Pioneer-7226-Manual-Page-1-Picture
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Pioneer -- SX-1250 -- Cirquit Diagram
File name Pioneer-7227-Manual-Page-1-Picture
Manual Type Cirquit Diagram
Pages 4
Size 287.17 Kbytes (294066 Bytes)
Language english
Revision
Manual-ID/Number
Date
Quality Scanned document, reading partly badly, partly not readable.
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MD5 287fe11f93251cc67fc7b4a0122398b9
Downloads 70 since 27 September 2015
Information
Pioneer-7227-Manual-Page-1-Picture
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Pioneer -- SX-1250 -- Service Manual
File name Pioneer-7228-Manual-Page-1-Picture
Manual Type Service Manual
Pages 124
Size 6.73 Mbytes (7056628 Bytes)
Language english
Revision
Manual-ID/Number ART-158-0
Date
Quality Scanned document, reading partly badly, partly not readable.
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MD5 6fc5aeb1cae243479bb170aed3a3d291
Downloads 127 since 27 September 2015
Information
1. SPECIFICATIONS
.......................................................................................................................4
Z FRONT PANEL FACILITIES
.....................................................................................................6
3. CONNECTION DIAGRAM
.........................................................................................................9
4. CIRCUIT DESCRIPTIONS
4.1 Tuner Section
.......................................................................................................................11
4.2 Audio Section
.......................................................................................................................14
4.3 Protection
Circuit..................................................................................................................17
4.4 Power Supply Circuit
........................................................................................................18
5. LEVEL DIAGRAM
.......................................................................................................................19
6. BLOCK DIAGRAM
......................................................................................................................20
7.
DISASSEMBLY...............................................................................................................................22
8. PARTS LOCATION
8.1 Front Panel View
.................................................................................................................25
8.2 Rear Panel View
......................................................................................27
8.3 Top View
...............................................................................................................................29
8.4 Bottom
View...........................................................................................................................31
8.5 Front
View............................................................................................................................33
9. ADJUSTMENTS
9.1 AM
Tuner..............................................................................................................................35
9.2 FM Tuner
...............................................................................................................................36
9.3 Power Amplifier
....................................................................................................................38
9.4
Stabilizer.................................................................................................................................38
10. DIAL CORD STRINGING
.........................................................................................................39
11. EXPLODED VIEWS
......................................................................................................................40
12. SCHEMATIC DIAGRAMS. P.C. BOARD PATTERNS AND PARTS LISTS
12.1 Miscellaneous-parts
.............................................................................................................51
12.2 Schematic Diagram
.............................................................................................................
53
12.3 Internal Circuitry of Integrated Circuits
........................................................................
55
12.4 The Circuit of FM Front End (AWB
023)........................................................................
56
12.5 Tuner Assembly
(AWE-068)...............................................................................................
57
12.6 De-emphasis Switch Assembly
(AWX-099)......................................................................
63
12.7 Equalizer Amplifier Assembly (AWF 021)
......................................................................
64
12.8 Function Switch Assembly
(AWS-094).............................................................................
68
12.9 Flat Amplifier Assembly (AWG 042)
.............................................................................
70
12.10 5P Connector Assembly (AWX
062).................................................................................
75
12.11 Control Amplifier Assembly (AWG 041)
........................................................................
76
12.12 Filter Amplifier Assembly (AWM
089)............................................................................
80
12.13 Microphone Jack Assembly (AWX-097)
..........................................................................
83
12.14 Power Amplifier Assembly
(AWH-048)............................................................................
84
12.15 Speakers Switch Assembly (AWS-095)
............................................................................
88
12.16 Protection Circuit Assembly (AWM-091)
........................................................................
90
12.17 Stabilizer Assembly (AWR-106)
........................................................................................
93
12.18 Power Supply Assembly (AWR-107)
................................................................................
96
13. PACKING
........................................................................................................................................
98
14. PARTS LIST OF EXPLODED
VIEWS......................................................................................
99
15. SUPPLEMENTS FOR SX 1250/HG AND SX-1250/S
15.1 Contrast of
Miscellaneous-parts..........................................................................................101
15.2 Schematic Diagram for SX-1250/S
...................................................................................103
15.3 Schematic Diagram for SX·
1250/HG.................................................................................105
15.4 De-emphasis Switch Assembly (AWX-101, for S type)
.................................................107
15.5 Speakers Switch Assembly (AWS 098, for HG
type).....................................................108
15.6 Power Supply Assembly (AWR-108, for HG type)
........................................................110
Pioneer-7228-Manual-Page-1-Picture
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