Bose FREESPACE 4400 Specifications download pdf (Page 58)

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8.0 FreeSpace

4400 System Troubleshooting

8.3 FreeSpace

4400 system Error Log

The FreeSpace 4400 system Error Log is displayed when the

FreeSpace 4400 Installer™ software is in the Service Hardware

mode.

8.3.1 Contents of the Error Log

The Error Log displays FreeSpace 4400 system hardware version

numbers and records all alarms and their causes as shown in the

following example.

8.3.2 Hardware configuration

The FreeSpace 4400 system hardware version numbers appear

at the top of the Error Log listing. These are the version numbers

of the software installed in the FreeSpace 4400 hardware at the

time of manufacture. These version numbers do not pertain to the

FreeSpace 4400 Installer™ software installed on your PC.

8.3.3 Power-on self-test results

The power-on-self test (POST) results are only displayed when an

error has occurred. The POST test checks the basic operation of

the FreeSpace 4400 hardware to determine if it is capable of

properly performing audio processing and amplification. During

the POST test, five major components of the hardware are

tested.

• Host controller – The host controller monitors and controls the

operation of the FreeSpace 4400 hardware. A host controller

failure will cause the message, “Power-on self-test incomplete”

to appear in the host controller test section. The failure type for

a host controller is an SRAM address failure. If this occurs

contact your local Bose representative or visit pro.Bose.com.

• Flash memory test – The flash memory contains the configu-

ration, design file, and system event schedule. A flash failure

will cause the message, “Power-on sel-test incomplete” to

appear in the host controller flash test section. If this occurs

contact your local Bose representative or visit pro.Bose.com

• Peripheral controller –

The peripheral controller monitors con-

tact closures, front panel connections and user interface con-

nections for incoming event messages. Any failures in these

areas will cause the message, “Power-on self-test incomplete”

to appear in the peripheral controller flash test section. If a 12C,

or code failure occurs, contact your local Bose representative or

visit pro.Bose.com. If a user interface failure occurs, check the

user interface wiring for shorts.

• DSP test – The DSP performs all signal processing and routing

functions. If a DSP error occurs

, contact your local Bose repre-

sentative or visit pro.Bose.com.

• Upper and lower amplifier test – The upper and lower ampli-

fier test determines if the amplifiers are operating properly. An

amplifier failure will cause the message, “Power-on self-test

incomplete” to appear in the upper or lower amplifier section of

the POST test results. If a 12C, or code failure occurs

, contact

your local Bose representative or visit pro.Bose.com.

Additional

details on the exact cause of an amplifier failure can be found

in the amplifier section of the Error Log.

Bose

FreeSpace 4400 Error Log

-------------------------------------------------

Microcontroller: v3.0.0.18

DSP: v2.0.1.0

Peripheral: v1.0.0.10

Lower Amplifier: v1.1.8.5

Upper Amplifier: v1.1.8.5

-------------------------------------------------

power-on self-test alarm (ok)

2002/12/31 23:59

host controller test:

[OK]

host controller flash test:

[OK]

peripheral controller test:

DSP test: 1

upper amplifier test:

[OK]

Hardware

version

numbers

Type of alarm

Name of test

Test results

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 69 70

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Bose FREESPACE 4400 Specifications Page 58

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