JBL SDP-5 (serv.man7) Service Manual ▷ View online
CAUTION
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
The following practices minimize possible damage to circuit boards resulting from electrostatic
discharge or improper insertion.
discharge or improper insertion.
• Keep circuit boards in their original packaging until ready for use.
• Avoid having plastic, vinyl, or Styrofoam in the work area.
• Wear an anti-static wrist strap.
• Discharge personal static before handling circuit boards.
• Remove and insert circuit boards with care.
• When removing circuit boards, handle only by non-conductive surfaces. Never touch open-edge
• Avoid having plastic, vinyl, or Styrofoam in the work area.
• Wear an anti-static wrist strap.
• Discharge personal static before handling circuit boards.
• Remove and insert circuit boards with care.
• When removing circuit boards, handle only by non-conductive surfaces. Never touch open-edge
connectors except at a static-free workstation.
• Minimize handling of circuit boards.
• Handle each circuit board by its edges.
• Do not slide circuit boards over any surface.
• Insert circuit boards with the proper orientation.
• Use static-shielded containers for storing and transporting circuit boards.
• Handle each circuit board by its edges.
• Do not slide circuit boards over any surface.
• Insert circuit boards with the proper orientation.
• Use static-shielded containers for storing and transporting circuit boards.
3 Oak Park
Bedford, MA 01730-1413 USA
Telephone: 781-280-0300
Fax: 781-280-0490
www.lexicon.com
Bedford, MA 01730-1413 USA
Telephone: 781-280-0300
Fax: 781-280-0490
www.lexicon.com
Customer Service
Telephone: 781-280-0300
Sales Fax: 781-280-0495
Telephone: 781-280-0300
Sales Fax: 781-280-0495
Service Fax: 781-280-0499
WARNING
These service instructions are only intended for use by
qualified personnel. Do not perform any servicing other than
that contained in these instructions unless qualified to do so.
Refer to the Safety Summary on the previous page prior to
performing any service.
“Lexicon” and the Lexicon logo are registered trademarks of
Harman International Industries, Incorporated.
U.S. patent numbers and other worldwide patents issued
and pending.
qualified personnel. Do not perform any servicing other than
that contained in these instructions unless qualified to do so.
Refer to the Safety Summary on the previous page prior to
performing any service.
“Lexicon” and the Lexicon logo are registered trademarks of
Harman International Industries, Incorporated.
U.S. patent numbers and other worldwide patents issued
and pending.
Product Shipments
16 Progress Road
Billerica, MA 01821-5730 USA
16 Progress Road
Billerica, MA 01821-5730 USA
Part No. 070-17536 | Rev 0 | 08/05
This document should not be construed as a commitment on
the part of Harman Specialty Group. The information it
contains is subject to change without notice. Harman
Specialty Group assumes no responsibility for errors that
may appear within this document.
the part of Harman Specialty Group. The information it
contains is subject to change without notice. Harman
Specialty Group assumes no responsibility for errors that
may appear within this document.
TABLE OF CONTENTS
CHAPTER 1 – REFERENCE DOCUMENT & EQUIPMENT LISTS ........................1-1
CHAPTER 2 – GENERAL INFORMATION .............................................................2-1
CHAPTER 3 – SPECIFICATIONS ..........................................................................3-1
CHAPTER 4 – FUNCTIONAL VERIFICATION .......................................................4-1
Initial Inspection................................................................................................................. 4-1
Functional Audio I/O Tests ................................................................................................ 4-2
Audio Performance Verification ......................................................................................... 4-5
Video Input/Output Tests................................................................................................... 4-9
Lexicon Audio Precision ATE Summary.......................................................................... 4-11
CHAPTER 5 – TROUBLESHOOTING ....................................................................5-1
Diagnostic Categories ...................................................................................................... 5-1
Power On Modes ............................................................................................................... 5-1
Diagnostics User Interface ............................................................................................... 5-1
Diagnostic Reporting ......................................................................................................... 5-2
Power On Diagnostics ....................................................................................................... 5-8
Extended Diagnostics Tests ............................................................................................ 5-11
Repair Diagnostics Tests................................................................................................. 5-12
Functional Diagnostic Suite ............................................................................................. 5-14
Repair Diagnostic Suite ................................................................................................... 5-19
Audio I/O Tests ................................................................................................................ 5-20
Video I/O Tests ................................................................................................................ 5-21
CHAPTER 6 – THEORY OF OPERATION .............................................................6-1
Main Board Z180 Host Processor ..................................................................................... 6-1
FPGAs ............................................................................................................................... 6-3
Host Interface to Other Boards.......................................................................................... 6-6
Decoder Board................................................................................................................... 6-8
DSP Board....................................................................................................................... 6-10
Audio Routing .................................................................................................................. 6-13
VCO Board Overview.......................................................................................................... 6-16
MC-8 Analog Overview ....................................................................................................... 6-16
MC-8 Video System Circuit Overview................................................................................. 6-20
CHAPTER 7 – PARTS LIST ........................................................................................ 7-1
Main Board Assembly ........................................................................................................... 7-1
Memory Board Assembly...................................................................................................... 7-4
Video RCA Board Assembly ................................................................................................. 7-5
Video Out Board Assembly................................................................................................... 7-5
DSP Board Assembly ........................................................................................................... 7-5
Decoder Board Assembly ..................................................................................................... 7-6
Switch/LED Board Assembly ................................................................................................ 7-6
Standby Board Assembly...................................................................................................... 7-6
XLR Board Assembly............................................................................................................ 7-7
IR/Encoder Board Assembly................................................................................................. 7-7
VCO Assembly...................................................................................................................... 7-7
Chassis Assembly................................................................................................................. 7-8
Mic Board Assembly ............................................................................................................. 7-9
Power Supply Assembly ....................................................................................................... 7-9
Fan Assembly ....................................................................................................................... 7-9
Switch/LED Board Assembly ................................................................................................ 7-9
Front Panel Mechanical Assembly ....................................................................................... 7-9
Video Mechanical Assembly ............................................................................................... 7-10
Packaging/Miscellaneous ................................................................................................... 7-10
Power Cord Options............................................................................................................ 7-10
Mounting Option.................................................................................................................. 7-10
MC8 to MC8B Upgrade Option ........................................................................................... 7-10
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