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PROPRIETARY INFORMATION
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OF
BOSE
¨ CORPORATION WHICH IS BEING FURNISHED ONLY FOR
THE PURPOSE OF SERVICING THE IDENTIFIED BOSE PRODUCT
BY AN AUTHORIZED BOSE SERVICE CENTER OR OWNER OF THE
BOSE PRODUCT, AND SHALL NOT BE REPRODUCED OR USED
FOR ANY OTHER PURPOSE.
Contents
Safety Information ............................................................................................................................ 2
Electrostatic Discharge Sensitive (ESDS) Device Handling ........................................................ 2
Specifications ................................................................................................................................ 3-4
Figure 1. CD5 Block Diagram Sheet 1 of 2 ......................................................................................5
Figure 2. CD5 Block Diagram Sheet 2 of 2 ......................................................................................6
CD Terms ..................................................................................................................................... 7-11
Theory of Operation .................................................................................................................. 12-17
Figure 3. Labelled Exploded View ..................................................................................................18
Disassembly/Assembly Procedures ....................................................................................... 19-21
Figure 4. APC PCB ........................................................................................................................19
Figure 5. Back Panel with Tab Locations .......................................................................................22
Figure 6. Right Cover Assembly (side view) ..................................................................................22
Figure 7. Base Assembly (top view with covers removed) .............................................................22
RC5 Disassembly/Assembly Procedures .................................................................................... 23
Figure 8. Remote Control Assembly Exploded View ......................................................................23
Test Procedures ........................................................................................................................ 24-26
Figure 9. AM Test Setup .................................................................................................................26
Figure 10. Audio PCB Test Section ................................................................................................26
CD Test Procedures .................................................................................................................. 27-31
Figure 11. CD Alignment Fixture and Test Setup ...........................................................................28
Figure 12. Passive Filter Network and Test Setup .........................................................................29
Figure 13. Digital PCB Adjustment Locations ................................................................................32
Parts List Notes .............................................................................................................................. 33
Console Assembly Parts List ........................................................................................................ 34
Figure 14. Exploded View ..............................................................................................................35
Remote Control Assembly Parts List ........................................................................................... 36
Figure 15. RC5 Exploded View ......................................................................................................36
Electrical Part List ..................................................................................................................... 37-46
RC5 Electrical Part List ............................................................................................................. 47-49
Packaging Part List ........................................................................................................................ 50
Figure 16. Packaging Exploded View ............................................................................................50
Service Bulletin ......................................................................................................................... 51-53
CD5 Troubleshooting Guide .......................................................................................................... 54
CD5 Voltages and Waveforms .................................................................................................. 55-58
Integrated Circuit Diagrams ..................................................................................................... 59-66
Figure 17. RC5 PCB Layout ...........................................................................................................67
Figure 18. RC5 Schematic .............................................................................................................68
CAUTION: THE LIFESTYLE
¨ MODEL 5 MUSIC CENTER CONTAINS NO
USER SERVICEABLE PARTS. TO PREVENT WARRANTY INFRACTIONS,
REFER SERVICING TO WARRANTY SERVICE STATIONS OR FACTORY
SERVICE.
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SAFETY INFORMATION
1. Parts that have special safety characteristics are identified by the symbol on
schematics or by special notes in the part lists. Use only replacement parts that
have critical characteristics recommended by the manufacturer.
2. Make leakage current or resistance measurements to determine that exposed
parts are acceptably insulated from the supply circuit before returning the unit
to the customer. Use the following checks to perform these measurements:
A. Leakage Current Hot Check: With the unit completely assembled, plug the AC line cord
directly into a 120V AC outlet. (Do not use an isolation transformer during this test.) Use a
leakage current tester or a metering system that complies with American National Standards
Institute (ANSI) C101.1 "Leakage Current for Appliances" and Underwriters Laboratories (UL)
1492 (71). With the unit's AC switch first in the ON position and then in the OFF position,
measure from a known earth ground (metal water pipe, conduit, etc.) to all exposed metal
parts of the unit (antennas, handle bracket, metal cabinet, screw-heads, metallic overlays,
control shafts, etc.), especially any exposed metal parts that offer an electrical return path to
the chassis. Any current measured must not exceed 0.5 milliamp. Reverse the unit's power
cord plug in the outlet and repeat the test. ANY MEASUREMENTS NOT WITHIN THE LIMITS
SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BE ELIMI-
NATED BEFORE RETURNING THE UNIT TO THE CUSTOMER.
B. Insulation Resistance Test Cold Check: (1) Unplug the power supply and connect a
jumper wire between the two prongs of the plug. (2) Turn on the power switch of the unit. (3)
Measure the resistance with an ohmmeter between the jumpered AC plug and each exposed
metallic cabinet part on the unit. When the exposed metallic part has a return path to the
chassis, the reading should be between 1 and 5.2M W. When there is no return path to the
chassis, the reading must be "infinite". If it is not within the limits specified, there is the possibil-
ity of a shock hazard, and the unit must be repaired and rechecked before it is returned to the
customer.
ELECTROSTATIC DISCHARGE SENSITIVE (ESDS)
DEVICE HANDLING
This unit contains ESDS devices. We recommend the following precautions when repairing,
replacing or transporting ESDS devices:
¥ Perform work at an electrically grounded work station.
¥ Wear wrist straps that connect to the station or heel straps that connect to conductive floor
mats.
¥ Avoid touching the leads or contacts of ESDS devices or PC boards even if properly
grounded. Handle boards by the edges only.
¥ Transport or store ESDS devices in ESD protective bags, bins, or totes. Do not insert
unprotected devices into materials such as plastic, polystyrene foam, clear plastic bags,
bubble wrap or plastic trays.
