Yamaha R-N402 Service Manual page 38

R-N402/R-N402D
S2. ROM VERSION/CHECKSUM
The firmware version and checksum values are displayed.
The checksum is obtained by adding the data at every 8-bit and expressing the result as a hexadecimal notation.
* Numeric values in the figure are given as reference only.
S2-1
System: 1.02
S2-2
Ver: 0023
S2-3
Sum: 88E8
S2-4
N:0011
S2-5
N-Sum:D360D26E
S3. SOFT SWITCH
Not for service.
S4. SYSTEM INFORMATION
This menu is used to display the model name and destination.
S4-1. MODEL/DESTINATION
The model name and destination are displayed.
S4-1
N4 --- G 055
S4-2. VERIFY
Not for service.
38
S2-1. SYSTEM VERSION
The firmware version is displayed.
S2-2. MICROPROCESSOR VERSION
The firmware version of MICROPROCESSOR (IC302 on DIGITAL P.C.B.) is displayed.
S2-3. MICROPROCESSOR CHECKSUM
The checksum value of MICROPROCESSOR (IC302 on DIGITAL P.C.B.) is displayed.
S2-4. NETWORK VERSION
The firmware version of Network module is displayed.
S2-5. NETWORK CHECKSUM
The checksum value of Network module is displayed.
S3-1
SW :PCB
Not for service.
Destination
U / R (R, S) / K / A / G (B, G, F) / L
Not for service.
Model name
N4 (R-N402)
S4-2
Verify 255 00