Crown XTi series Service Manual page 117

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138349-14 REV. A
E.C.N REV
INITIAL RELEASE DERIVED FROM 138349-14 REV 1 WITH THE
A FOLLOWING CHANGE: HS13B, HS13C, HS13D, HS14E, HS14F,
HS14G, AND HS14H WERE 139310-1.
UNLESS OTHERWISE SPECIFIED, THIS PRINTED WIRING ASSEMBLY SHALL MEET
THE SPECIFICATION DESCRIBED IN IPC-A-610_ CLASS 2 STANDARDS.
ROHS COMPLIANCE: THIS PART MUST COMPLY WITH CROWN AUDIO SPECIFICATION 138935
AND ROHS DIRECTIVE 2002/95/EC OR BE DEFINED AS A ROHS APPROVED EXCEPTION.
NOTES:
1. PRINTED WIRING BOARD PART NUMBER 138348-9.
2. SEE 138349-14_A.TIF FOR SCHEMATIC AND BOARD MAP
3. THE MAXIMUM LEAD LENGTH ON THE BOTTOM SIDE OF THE BOARD SHALL NOT EXCEED 0.145".
4. POSITION COMPONENTS AS SHOWN ON COMPONENT MAP.
5. THE PRINTED WIRING ASSEMBLY PART NUMBER FOR THIS ASSEMBLY SHALL
BE MARKED ON THE PRINTED WIRING BOARD AND SHALL BE PERMANENT.
6. DO NOT PICK-UP THE PWA ASSEMBLY BY THE HEATSINK ASSEMBLIES
7. INSURE RETAINERS
8. INSURE RETAINERS ON THE POWER SUPPLY HEATSINK ASSEMBLIES
ARE FULLY INSERTED INTO THE PWB WHEN INSTALLING
NOTE: IF RETAINER CLIP
- REMOVE BROKEN CLIP FROM THE HEATSINK AND PWB
- APPLY SILICONE S 5700-0
- DO NOT ATTEMPT TO REMOVE THE HEATSINK ASSEMBLY FROM THE BOARD
9. OUTPUT TRANSISTOR SCREWS ARE TORQUED TO 20-22 IN LBS.
10. 139360-1 IS CONSUMED IN HEATSINK ASSEMBLIES HS1, HS5 AND HS13.
11. USE SIDE CUTTERS TO SEVER THE BOARD TABS OF THE BREAKOUT BOARD,
SEE COMPONENT MAP.
12. ADD 139901-1 SPACER HW3 AND HW4, BETWEEN HEATSINKS HS14 AND HS5, AND HS13 AND
HS6 RESPECTIVELY
UNLESS OTHERWISE MARKED IN RED INK BY CM AS A CONTROLLED COPY, COPIES OF THESE DOCUMENTS
INCLUDING ASSOCIATED ELECTRONIC REPRODUCTIONS ARE FOR REFERENCE ONLY
THESE DRAW INGS AND SPECIFICATIONS ARE THE PROPERTY OF CROWN INTERNATIONAL, INC. AND SHALL NOT BE
REPRODUCED, COPIED, OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES
WITHOUT PERMISSION.
DWN KLW 12/05/07 PE
XTi4000 BOM 138349-14_A.xls
R04.1CDE-004_(Fm) JAW 10/6/01
请到http://bbs.bjjdwx.com
PWA, XTI4000
REVISION HISTORY
DESCRIPTION
139421-3 ARE FULLY INSERTED INTO THE POWER SUPPLY HEATSINKS.
139421-3 BREAKS AFTER SOLDERING REPAIR AS FOLLOWS:
INTO THE PWB SLOT AND GROOVE OF THE HEATSINK
UNCONTROLLED
TJS 12/05/07 CM DSV
CROWN AUDIO, INC. ELKHART, IN.
海量维修资料免费下载
DATE
12/05/07 KLW
12/10/07 DIST.
600029
DWN PE CM
TJS DSV
K
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