Yamaha RX-V461 Service Manual page 23

RX-V461/HTR-6040/DSP-AX461
18. ROM VER/SUM
The version and checksum are displayed. The signal
is processed using EFFECT OFF.
The checksum is obtained by adding the data at every
8-bit for each program area and expressing the result
as a 4-figure hexadecimal data.
18. VER.
18.A.SUM: F25D
18.P.SUM: 8D14
18.SPI.S: E598
18.SPD.S: CD02
18. XM : XM09
18.DAB:
FROM TEST:
DRAM TEST:
PROM TEST:
36
Version
H045
Firmware version of microprocessor (IC101 DSP P.C.B.) is displayed.
All checksum
Checksum value of microprocessor (IC101 DSP P.C.B.) is displayed.
Program checksum
Checksum value of application and standby code program is displayed.
SPI (Serial Peripheral Interface) checksum
Checksum value of SPI firmware update code is displayed.
SPD (S/PDIF) checksum
Checksum value of SPD firmware update code is displayed.
XM version
Firmware version of XM is displayed.
DAB version
Firmware version of DAB is displayed. (Not applied to these models.)
FlashROM test
The read/write test of microprocessor (IC101 DSP P.C.B.) and flash ROM (IC201 DSP P.C.B.).
NoEr: No error detected /
SDRAM test
The read/write test of microprocessor (IC101 DSP P.C.B.) and SDRAM (IC202 DSP P.C.B.).
NoEr: No error detected /
EEPROM test
The read/write test of microprocessor (IC101 DSP P.C.B.) and EEPROM (IC102 DSP P.C.B.).
NoEr: No error detected /
NG: An error is detected /
NG: An error is detected /
NG: An error is detected /