Yamaha RX-V2065 Service Manual page 62

RX-V2065/HTR-6295
25. ROM VER/SUM/PORT
The firmware version, checksum values, model name and destination are displayed.
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.
*
The figures in the diagram are given as reference only.
Firmware version
The firmware version of microprocessor (IC20 DIGITAL P.C.B.) is displayed.
All checksum
The checksum value of microprocessor (IC20 DIGITAL P.C.B.) is displayed.
TI (DSP) FLASH ROM version
The firmware version of TI (DSP) FLASH ROM (IC49 DIGITAL P.C.B.) is displayed.
TI (DSP) FLASH ROM checksum
The checksum value of TI (DSP) FLASH ROM (IC49 DIGITAL P.C.B.) is displayed.
BF version
The firmware version of BF (sub-microprocessor, IC505 GUI P.C.B.) is displayed.
BF checksum 1 (All/Master boot)
The checksum value (All/Master boot) of BF (sub-microprocessor, IC505 GUI P.C.B.) is displayed.
62
V e r : C 0 2 4
S u m : 5 2 5 3
T i V e r : 0 1 . 0 3 r 1
T i S u m : F 1 D 0 1 3 5 A
B F V e r : C 0 1 9
A 1 : 3 E D 2 M a : 0 1 2 2