COBHAM 250 Installation And Operation Instruction Manual
DOCUMENT NUMBER 250-16-1
SEALED
2011.08.16
16:58:20
-07'00'
250
PASSENGER SPEAKER AMPLIFIER
INSTALLATION AND OPERATION MANUAL
REV "-" Sep 15, 2004
Cobham
6400 Wilkinson Drive
Prescott, AZ 86301-6164
(928) 708-1500
Amendment #3 Aug 9, 2011
CONFIDENTIAL AND PROPRIETARY TO COBHAM
250-16-1 Rev. - 250 Passenger Speaker Amplifier Installation and Operation Manual
Cobham
has acquired the assets of Nothern Airborne
Technology Ltd. and dB Systems Inc., and
has reissued this manual in its entirety
Cobham
will be responsible for all future
amendments and revisions.
Aug 9, 2011 Page ii
ENG-FORM: 820-0109.DOT Amendment #3 Aug 9, 2011
CONFIDENTIAL AND PROPRIETARY TO COBHAM
250-16-1 Rev. - 250 Passenger Speaker Amplifier Installation and Operation Manual
Amendment
Zack Pahlman
2011.08.16
11:05:03 -07'00'
Geoff
Melton
2011.08.16
14:37:12
-07'00'
Aaron
Voigt
(Approve
d)
2011.08.1
6
16:24:54
-07'00'
Periodically Cobham will release manual amendments. In order to maintain the most
accurate and up to date manual these amendments should be carried out immediately
upon receipt and recorded on the following amendment record.
AMENDMENT RECORD
Amend
ment
Date
Amendment Change Check Approve
Number
1 Sep 15/04
2 Oct 21/04
3 Aug 9/11 Incorporated ECR11040.
Added 250-[ ] MOD C.
Insert any Amendment Instruction sheets after this page.
Aug 9, 2011 Page iii
ENG-FORM: 820-0109.DOT Amendment #3 Aug 9, 2011
CONFIDENTIAL AND PROPRIETARY TO COBHAM
INSTALL_OPS
MANUAL AMENDMENT
Manual: 250-16-1 Amendment #: 3
Document #: 250-16-1 809-0003 Amendment Date: Aug 8, 2011
The purpose of this amendment is to update the 250 outline drawing and MOD table
per ECR11040.
Amendment Instructions:
1
2
Note: Ensure that all drawings are inserted in the order shown on the latest drawing lists.
Remove Pages Replace With Pages
Title Page Amendment # 2 Title Page Amendment # 3
Page ii Amendment # 2 Page ii Amendment # 3
Page iii Amendment # 2 Page iii Amendment # 3
Page b Amendment #2 Page b Amendment #3
Page c Amendment #1 Page c Amendment #3
Page d Amendment #2 Page d Amendment #3
Remove Drawings Replace With Drawings
250 Rev 1.71 (page 7) 250 Rev 1.90 (page 7)
2 Update the Amendment Record sheet at the front of the manual.
3 Insert this page into the manual after the Amendment Record sheet (page iii).
Manual Amendment ends after the following amended pages
Amendment #3 Aug 9, 2011 Page 1
ENG-FORM: 809-0108.DOT
PROPRIETARY AND CONFIDENTIAL TO COBHAM
INSTALL_OPS
MANUAL AMENDMENT
Manual: 250-16-1 Amendment #: 2
Document #: Install_Ops\250\809-0002 Amendment Date: Oct 21, 2004
The purpose of this amendment is to update the 250 outline drawing.
Amendment Instructions:
1
Page b Amendment #1 Page b Amendment #2
Page d Amendment #1 Page d Amendment #2
Page 7 Amendment#1 Page 7 Amendment #2
Note: Ensure that all drawings are inserted in the order shown on the latest drawing lists.
2 Update the Amendment Record sheet at the front of the manual.
3 Insert this page into the manual after the Amendment Record sheet (page iii).
Manual Amendment ends after the following amended pages
Remove Pages Replace With Pages
Title Page Amendment #1 Title Page Amendment #2
Amendment #2 Oct 21, 2004 Page 1
ENG-FORM: 809-0108.DOT
PROPRIETARY AND CONFIDENTIAL TO NORTHERN AIRBORNE TECHNOLOGY LTD.
INSTALL_OPS
MANUAL AMENDMENT
Manual: SM250 250 Amendment #: 1
Document # SM250\Install_Ops\809-0001 Amendment Date: Sep 15, 2004
The purpose of this amendment is to update all applicable drawings.
Amendment Instructions:
1
Pages b – c Pages b – d Amendment #1
Page 7 Page 7 Amendment #1
2
3 Update the Amendment Record sheet at the front of the manual.
4 Insert this page into the manual after the Amendment Record sheet (page iii).
Manual Amendment ends after the following amended pages
Remove Pages Replace W ith Pages
250-16-1 Title Page Rev - SM250 Title Page Rev -
Insert Pages After Page
Page ii – iii SM250 Title Page
Amendment #1
ENG-FORM: 809-0108.DOT
PROPRIETARY AND CONFIDENTIAL TO NORTHERN AIRBORNE TECHNOLOGY LTD.
Sep 15, 2004 Page 1
EQUIPMENT MANUAL 250-16-1 REV -
CHANGE RECORD
DATE
3-11-03 ORIGINAL DOCUMENT RELEASED
CHANGE
APPROVAL
250/250-16-1
Page a
EQUIPMENT MANUAL 250-16-1 REV -
TABLE OF CONTENTS
Page
1.0 OPERATING INSTRUCTIONS AND EQUIPMENT LIMITATIONS ................................................1
2.0 SPECIFICATIONS ..........................................................................................................................3
3.0 INSTALLATION PROCEDURES, WIRING DIAGRAM, AND LIMITATIONS..................................6
3.1 PHYSICAL.......................................................................................................................................6
3.2 ELECTRICAL ..................................................................................................................................6
Tables
Table A Detail Part Numbers...............................................................................................................c
Table B Figures with Applicable Serial Numbers ................................................................................d
Table 1 Pin Identification.....................................................................................................................9
Table 2 Environmental Qualification Form........................................................................................13
Figures / Drawings
250 Outline, Model 250-[ ], Passenger Speaker Amplifier (Rev 1.90) ........................................7
Figure 2 Model 250-[ ] Block Diagram................................................................................................8
Figure 3 Model 250-[ ] Wiring Diagram ............................................................................................10
Figure 4 Internal Trim Pot Adjustments..............................................................................................13
250/250-16-1 Amendment #3 Aug 9, 2011 Page b
PROPRIETARY AND CONFIDENTIAL TO COBHAM
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