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Panaray 502C
Bose Panaray 502C Service Manual
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56
Figure 27. Low Frequency EQ
Figure 26. Low Frequency EQ
20
200
2K
20K
-40
-30
-20
-10
0
10
20
Response
Frequency in Hz
Gain
in dB
Frequency in Hz
20
200
2K
20K
-40
-30
-20
-10
0
10
20
Gain
in dB
Output is measured from U7 pins 1 and 14. 502C controls are set at: Mode 2 (Bi-amp),
Output Mode: Normal, Low Frequency level: +3dB, and Input Level: +4dB.
Output is measured from U7 pins 7 and 8. 502C controls set as in Figure 26.
55
57
Table of Contents
Table of Contents
2
Contents
3
Safety Information
4
Warranty
4
Specifications
5
502 ® a Array Specifications
5
502B Bass Module Specifications
6
502C Controller Specifications
6
Electrostatic Discharge Sensitive (ESDS) Device Handling
8
Parts Lists and Exploded Views
8
Parts List Notes
9
Packaging Part List, 502A Array (See Figure 1)
10
Packaging Part List, 502B Bass Box (See Figure 2)
11
Packaging Part List, 502C Controller (See Figure 3)
12
Main Part List, 502A Array (See Figure 4)
13
Main Part List, 502B Bass Box (See Figures 5 and 6)
15
Main Part List, 502C Controller (Chassis with Removable Front Panel) (See Figure 7)
18
Main Part List, 502C Controller (One-Piece Chassis) (See Figure 8)
20
Electrical Part Lists
21
502C Controller Main PCB Assembly
21
Disassembly Procedures
31
502A Array Procedures
31
502B Bass Module Procedures
34
502C Controller Disassembly Procedures
35
Test Procedures
41
502A Array Test Procedures
41
502B Bass Module Test Procedures
41
502C Controller Test Procedures
42
Accessory Kit Part Lists
46
502A PSA-5 Stand Adapter Parts List (See Figure 19)
46
502A CSB-5A Suspension Bracket Kit Parts List (See Figure 20)
47
502B CSB-5B Suspension Bracket Kit Parts List (See Figure 21)
48
502A WBP-5 Bi-Pivot Bracket Kit Parts List (See Figure 22)
49
502A WCB-5 U-Bracket Kit Parts List (See Figure 23)
50
502A CVT-5 Transformer Assembly Kit Parts List (Figure 24)
51
Theory of Operation
53
502C Controller
53
Differential Input Stage
53
Equalizer for High Frequency Outputs
53
Output Mode Switch, Low Frequency Level Control, and Normal/Sum Mode Stage
53
Equalizer for Low Frequency Outputs
53
Mode Switch
53
Output Stage
54
Power Supply
54
Turn On/Off Muting Circuit
54
Troubleshooting Tips
54
502C Controller EQ Curves
56
Service Manual Revision History
63
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Bose Panaray 502C Specifications
General
Brand
Bose
Model
Panaray 502C
Category
Stereo System
Language
English
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