System Error - Marantz SR9600 Service Manual

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.
C H E C K
Indication is keep and sound is mute.
2. Trouble in EEP-ROM
If data from EEPROM does not match.
C H E C K
3. Trouble in EEP-ROM IF
If communication with EEPROM is troubled more than 2
seconds.
C H E C K
4. Trouble in RS-232C
If communication of RS232C with RS232C is troubled
more than 2 seconds.
C H E C K
5. Trouble in 5V Supply
If 5V supply to DATA DIR is troubled.
C H E C K
6. Trouble in Protection
CPU turns off the speaker output.
P R O T E C T
7.Trouble in between Main CPU and Sub CPU
The trouble between Main CPU and Sub CPU was found.
C H E C K M A I N < - > S U B
8. Trouble in between Main CPU and FL CPU
The trouble between Main CPU and FL CPU was found.
C H E C K M A I N < - > F L
9. Trouble in between Sub CPU and MRAC CPU.
The trouble between Sub CPU and MRAC CPU was
found.
C H E C K S U B < - > M R A C
D S P
E 2 P
E 2 P I F
2 3 2 C
P O W E R 5 V
Device
• ERROR Surround Mode
• ERROR
1. DSP
DSP
C H E C K
2. EEP-ROM
EEP ROM Data
C H E C K
3. EEP-ROM IF
EEP ROM
C H E C K
4. RS-232C
RS232C RS232C
C H E C K
5. 5V
DATA DIR
C H E C K
6. Protection
Speaker
P R O T E C T
7. Main CPU Sub CPU
Main CPU Sub CPU
C H E C K
8. Main CPU FL CPU
Main CPU FL CPU
C H E C K
9. Sub CPU MRAC CPU
Sub CPU MRAC CPU
C H E C K
13
D S P
Mute
E 2 P
2
E 2 P I F
2
2 3 2 C
P O W E R 5 V
M A I N < - > S U B
M A I N < - > F L
S U B < - > M R A C