1
PS28/48 General Test Procedures
1. Initial Product Test
Note:
Before taking the unit apart or performing any repair process, an attempt to verify the cus-
tomer complaint must be made.
1.1
Read any customer note included with the unit.
2. Attempt to verify the complaint before opening the unit or performing any repairs.
2.1
Customer complaint not verified, discuss with customer.
2.2
Customer complaint verified, troubleshoot and repair the unit. Refer to the PS28/28 Trouble-
shooting Tips/Preventative Repair Measures document.
3. Check the software revision of the unit, using the procedures on page 5, procedure 2.3.
Refer to the Bose
®
service extranet site, http://serviceops.bose.com for information regard-
ing the latest software revision.
Update is needed.
4. Verify Performance and all functions.
Note:
If a media center is available, use the procedures “With AV28 media center”. if a media
center is not available, use the procedures “Without AV28 media center”.
Required Test Equipment and Cables
1.
Audio Signal Generator.
2.
Digital Converter (A-D) with S/PDIF output, if AV28 Media Center is not availble.
3.
PC (IBM compatible), if AV28 Media Center is not availble.
4.
DC power supply for cube phase test.
5.
Audio amplifier for cube sweep test.
6.
PS28/48 test cable part number 264564.
7.
RCA to bare wire cables (to connect cube speakers to bass module).
Black rear cable part number 180644
Black Left/Center/Right part number 180643-4
Note:
AC2 connector part number 195505-001 is needed to connect bare wire to Jewel
®
Cube
speaker.
6
8
7
8 PIN
RJ45
2
3
RCA PLUG
9 PIN D-SUB FEMALE
8 PIN RJ45
Test cable part number 264564
Connect to computer
RS232 port
Connect to D-A
converter
Connect to
PS28/48 bass module
