Marantz SR5400 - System Error Codes and Troubleshooting; DSP Communication Error; DSP Code Error; ADC Calibration Error

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10. SERVICE MODE
Microprocessor (IC28), DSP(IC20 )Version and FLD Segment
Check Mode.
1.While the power is on, ATT , TAPE and SELECT buttons
simultaneously more than 3 seconds.
The FL display shows "SERVICE MODE"for 2 seconds then
shows the model name.
SERV I CE MODE
SR5400
2.Press DISPLAY button, The software version of the
microprocessor (IC28) is displayed in the format below.
V030519 1U

Year
 
Month
 
Date
 
Dest.

(
Dest.:Destination)
3.Press DISPLAY button again, The software Type Number is
displayed.
SOFT TYPE x x
(XX is displayed in Hex)
4.Press DISPLAY button again, The Code Group Type Number
is displayed.
CODE TYPExxxx
(XXXX is displayed in Hex)
5. Press DISPLAY button again, The left half, right half and
center of the label area in the FLD light on and off each
other.
6. Press DISPLAY button again, The segments of the character
area in the FLD flick in checker pattern.
7. Press DISPLAY button again, All the FL segments turns off.
8.Press DISPLAY button again. Every time DISPLAY button is
pressed, DSP code is indicated in turn from NO.1 to NO.10.
CD01 01020101

No.
 
Dev.
 
SIG
 
TYP
 
Ver.

No.:CODE No. Dev.:Device ID SIG:CODE SIG ID
TYP:CODE TYP ID Ver.:Version
9. Press DISPLAY button again to quit this mode.
11. SYSTEM ERROR
When the microcomputer 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 DSP Code.
The trouble of DSP Code was found.
CHECK DSP ROM
3. Trouble in ADC.
When ADC input was chosen and CAL signal continued
High about 2 seconds after the ADC Calibration start.
CHECK ADC
4.Trouble in EEP-ROM
If data from EEPROM does not match.
CHECK E2P
5. Trouble in EEP-ROM IF
If communication with EEPROM is troubled more than 2
seconds.
CHECK E2P I F
6. Trouble in RS-232C.
If communication of Panja with RS232C (only SR6400) is
troubled more than 2 seconds.
CHECK 23 2C
7. Trouble in 5V Supply
If 5V supply to DATA DIR is troubled.
CHECK POW5
8. Trouble in Protection
CPU turns off the speaker output
PROTECT