13
5. SYSTEM ERROR
When the microprocessor detects a trouble, the following
information is displayed on the FLD.
• After the ERROR contents indication, Surround Mode is
initialized and returned Factory mode.
• The contents of the ERROR indication are the followings.
1. Trouble in DSP
If communication with DSP is troubled more than 2
seconds.
CHECK DSP
Indication is keep and sound is mute.
2. Trouble in EEP-ROM
If data from EEPROM does not match.
CHECK E2P
3. Trouble in EEP-ROM IF
If communication with EEPROM is troubled more than 2
seconds.
CHECK E2P I F
4. Trouble in RS-232C
If communication of RS232C with RS232C is troubled
more than 2 seconds.
CHECK 2 3 2C
5. Trouble in 5V Supply
If 5V supply to DATA DIR is troubled.
CHECK POWER 5V
6. Trouble in Protection
CPU turns off the speaker output.
PROTECT
7.Trouble in between Main CPU and Sub CPU
The trouble between Main CPU and Sub CPU was found.
CHECK MA I N< - >SUB
8. Trouble in between Main CPU and FL CPU
The trouble between Main CPU and FL CPU was found.
CHECK MA I N< - >F L
9. Trouble in between Sub CPU and MRAC CPU.
The trouble between Sub CPU and MRAC CPU was
found.
CHECK SUB< - >MRAC
ᙌԼϋᢿưƷီࠝႆဃƴȞǤǯȭȗȭǻȃǵƕŴϼྸƠᘙᅆ
ǛᘍƍLJƢŵɼƴӲ
Device
ƱƷᡫီࠝǛ౨ЈƠLJƢŵ
• ERROR
ᘙᅆࢸŴ
Surround
Mode
ƸИ҄ƞǕئЈᒵƷ
ཞƴǓLJƢŵ
• ERROR
ᘙᅆƷϋܾƸɦᚡưƢŵ
1. DSP
ီࠝ౨Јᘙᅆŵ
DSP
ƱƷᡫɥƷɧφӳǛኖ ᅺ౨ЈƠƨŵ
CHECK DSP
ᘙᅆཞƸƦƷLJLJư᪦٣Ƹ
Mute
ཞ
2. EEP-ROM
ီࠝ౨Јᘙᅆŵ
EEP
ROM
Data
ƷɧૢӳǛ౨ЈƠƨŵ
CHECK E2P
3. EEP-ROM IF
ီࠝ౨Јᘙᅆŵ
EEP
ROM
ƱƷᡫɧφӳƕኖ
2
ᅺˌɥဃơƨŵ
CHECK E2P I F
4. RS-232C
ီࠝ౨Јᘙᅆŵ
RS232C
ᡫƴ
RS232C
ƱƷᡫɧφӳǛኖ
2
ᅺˌɥ౨
ЈƠƨŵ
CHECK 2 3 2C
5. 5V
ီࠝ౨Јᘙᅆŵ
DATA
DIR
ƷီࠝǛ౨ЈƠƨŵ
CHECK POWER 5V
6. Protection
ӭီࠝ౨Јᘙᅆŵ
Speaker
ƔǒЈщǛഥNJLJƢŵ
PROTECT
7. Main CPU
Sub CPU
᧓Ʒီࠝ౨Јᘙᅆ
Main CPU
Ʊ
Sub CPU
᧓ƷီࠝǛ౨ЈƠƨŵ
CHECK MAIN<->SUB
8. Main CPU
FL CPU
᧓Ʒီࠝ౨Јᘙᅆ
Main CPU
Ʊ
FL CPU
᧓ƷီࠝǛ౨ЈƠƨŵ
CHECK MA I N< - >F L
9. Sub CPU
MRAC CPU
᧓Ʒီࠝ౨Јᘙᅆ
Sub CPU
Ʊ
MRAC CPU
᧓ƷီࠝǛ౨ЈƠƨŵ
CHECK SUB< - >MRAC
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