Service Mode - Marantz SR4600 Service Manual

10. SERVICE MODE

Microprocessor (IC41), DSP ROM(IC20 )Version and FLD
Seg ment Check Mode.
1. While the power is on, ATT, EXIT and 7.1CH INPUT
but tons si mul ta neous ly more than 3 seconds.
The FL display shows "SERVICE MODE" for 2 seconds
then shows the model name.
S E R V I C
S R 4
2. Press ENTER button, The software version of the
mi cro pro ces sor (IC41) is displayed in the format below.
V 0 5 0 5 2
Year Month Date
3. Press ENTER button again, The software Type Number
is displayed.
S O F T T
4. Press ENTER button again, The Code Group Type
Num ber is displayed.
C O D E T
5. Press ENTER button again, The left half, right half and
center of the label area in the FLD light on and off each
other.
6. Press ENTER button again, The segments of the
char ac ter area in the FLD flick in checker pattern.
7. Press ENTER button again, All the FL segments turns
off.
8. Press ENTER button again. Every time ENTER button
is pressed, DSP code is indicated in turn from NO.1 to
NO.10.
C D 0 1 0
No. Dev.
No. : DISP CODE ID Dev. : Device ID SIG. : CODE SIG ID
TYP. : CODE TYPE ID Ver. : Version
9. Press ENTER button again to quit this mode.
E M O D E
6 0 0
0 0 U
Dest.
(Dest. : Destination)
Y P E X
(XX is displayed in Hex)
Y P E X X X
(XXXX is displayed in Hex)
2 0 6 0 1 0
SIG TYP Ver.
Microprocessor (IC41), DSP ROM (IC20)
FL
1
3
"SERVICE MODE"
S E R V
S
2 ENTER
V 0 5 0
Year Month
3 ENTER
Type
X S O F T
4 ENTER
X
C O D E
5 ENTER
6 ENTER
7 ENTER
8 ENTER
Code ID NO 1
5
C D 0 1
No.
No. : DISP CODE ID Dev. : Device ID SIG. : CODE SIG ID
TYP. : CODE TYPE ID Ver. : Version
9 ENTER
47
Version
ATT, EXIT, 7 1CH INPUT
I C E M O
R 4 6 0 0
(IC41)
5 2 0 0 U
Date Dest.
(Dest. : Destination)
(IC28)
T Y P E
(XX is displayed in Hex)
Code Group Type
T Y P E X
(XXXX is displayed in Hex)
FL
FL Character
FL
ENTER
NO 10
0 2 0 6 0
Dev. SIG TYP
2
D E
Soft ware
X X
X X X
DSP
1 0 5
Ver.