Crown XTi 1000, Service Manual

Page: 39 / 167

139087-14 REV. A PWA, XTI1000 600029
E.C.N REV DATE DWN PE CM
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 139087-14_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 139421-3 ARE FULLY INSERTED INTO THE POWER SUPPLY
HEATSINKS.
8. INSURE RETAINERS ON THE POWER SUPPLY HEATSINK ASSEMBLIES
ARE FULLY INSERTED INTO THE PWB WHEN INSTALLING
NOTE: IF RETAINER CLIP
139421-3 BREAKS AFTER SOLDERING REPAIR AS FOLLOWS:
- REMOVE BROKEN CLIP FROM THE HEATSINK AND PWB
- APPLY SILICONE
S 5700-0 INTO THE PWB SLOT AND GROOVE OF THE HEATSINK
- 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
DWN KLW 12/05/07 PE TJS 12/05/07 CM DSV 12/10/07 DIST. K
TJS DSV
REVISION HISTORY
DESCRIPTION
A
INITIAL RELEASE DERIVED FROM 139087-14 REV 1 WITH THE
FOLLOWING CHANGE: HS13B, HS13C, HS13D, HS14E, AND
HS14F WERE 139310-1.
12/05/07 KLW
UNCONTROLLED
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.
XTi1000 BOM 139087-14_A.xls
R04.1CDE-004_(Fm) JAW 10/6/01
CROWN AUDIO, INC. ELKHART, IN. 1 OF 30
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