11
5. SYSTEM ERROR
When the microcomputer detects a trouble, the following in-
formation 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.
2. Trouble in DSP Code
The trouble of DSP Code was found.
3. Trouble in EEP-ROM
If data from EEPROM does not match.
4. Trouble in EEP-ROM IF
If communication with EEPROM is troubled more than 2
seconds.
5. Trouble in RS-232C
If communication of Panja with RS232C is troubled more
than 2 seconds.
6. Trouble in 5V Supply
If 5V supply to DATA DIR is troubled.
7. Trouble in Protection
CPU turns off the speaker output.
Indication is keep and sound is mute.
C
H
E
C
K
D
S
P
R
O
M
C
H
E
C
K
E
2
P
I
F
C
H
E
C
K
E
2
P
C
H
E
C
K
2
3
2
C
C
H
E
C
K
P
O
W
5
P
R
O
T
E
C
T
C
H
E
C
K
D
S
P
R
O
M
ᘙᅆཞ७ƸƦƷLJLJư᪦٣Ƹ /WVG ཞ७
5. SYSTEM ERROR
ᙌԼϋᢿưƷီࠝႆဃƴϼྸŴᘙᅆǛᘍƍLJƢŵɼƴӲ
Device
ƱƷᡫ̮ီࠝǛ౨ЈƠLJƢŵ
ERROR
ᘙᅆࢸŴ
Surround
Mode
ƸИ҄ƞǕئЈᒵ
Ʒཞ७ƴǓLJƢŵ
ERROR
ᘙᅆƷϋܾƸɦᚡưƢŵ
1. DSP
ီࠝ౨Јᘙᅆŵ
ီࠝ౨Јᘙᅆŵ
DSP
ƱƷᡫ̮ɥƷɧφӳǛኖ ᅺ౨ЈƠƨŵ
2. DSP Code
ီࠝ౨Јᘙᅆŵ
ီࠝ౨Јᘙᅆŵ
DSP
Code
ƷီࠝǛ౨ЈƠƨŵ
3. EEP-ROM
ီࠝ౨Јᘙᅆŵ
ီࠝ౨Јᘙᅆŵ
EEP
ROM
Data
ƷɧૢӳǛ౨ЈƠƨŵ
4. EEP-ROM IF
ီࠝ౨Јᘙᅆŵ
ီࠝ౨Јᘙᅆŵ
EEP
ROM
ƱƷᡫ̮ɧφӳƕኖ ᅺˌɥဃơƨŵ
5. RS-232C
ီࠝ౨Јᘙᅆŵ
ီࠝ౨Јᘙᅆŵ
Panja
ᡫ̮ƴ
RS
C
ƱƷᡫ̮ɧφӳǛኖ ᅺˌ
ɥ౨ЈƠƨŵ
6. 5V
ီࠝ౨Јᘙᅆŵ
ီࠝ౨Јᘙᅆŵ
DATA
DIR
ƷီࠝǛ౨ЈƠƨŵ
7. Protection
̮ӭီࠝ౨Јᘙᅆŵ
̮ӭီࠝ౨Јᘙᅆŵ
Speaker
ƔǒǛЈщǛഥNJLJƢŵ
C
H
E
C
K
D
S
P
R
O
M
C
H
E
C
K
E
2
P
I
F
C
H
E
C
K
E
2
P
C
H
E
C
K
2
3
2
C
C
H
E
C
K
P
O
W
5
P
R
O
T
E
C
T
C
H
E
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K
D
S
P
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M
Summary of Contents for PS7500
Page 25: ...27 28 TO AUX1 PCB TO FRONT PCB TO INPUT PCB TO USB PCB TO INPUT PCB DSP PCB 2 2 ...
Page 27: ...31 32 CN82 AMP PCB ...
Page 33: ...43 44 to STANDBY PCB POWER PCB ...
Page 37: ...51 52 DSP PCB B IC20 Q112 IC16 Q125 DVI PCB IC17 IC11 IC12 IC16 IC18 Q104 Q103 Q102 Q101 ...
Page 39: ...55 56 FRONT PCB IC81 Q801 H P PCB TUNER PCB AUX1 PCB IC83 IC84 SBLR PCB Q103 ...
Page 48: ...68 IC38 IC39 DSP PCB TC74VHC157 ...
Page 50: ...70 IC23 INPUT PCB TC9162AN IC21 INPUT PCB TC9164AN ...
Page 51: ...71 IC23 INPUT PCB TC9162AN IC21 INPUT PCB TC9164AN ...
Page 52: ...72 IC11 IC12 VOLUME PCB TC9482 ...
Page 53: ...73 IC11 IC12 VOLUME PCB TC9482 ...
Page 61: ...81 IC23 DSP PCB CS4382 ...
Page 62: ...82 IC23 DSP PCB CS4382 ...
