Yamaha RX-V675, Service Manual

Page: 69 / 182

S4. 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.
S 4 - 1
S Y S - V E R . 1 . 0 1
S 4 - 2
V E R . 0 0 0 2 8
S 4 - 3
S U M . 3 6 F 8
S 4 - 4
F R - V . 0 0 0 2 9
S 4 - 5
F R - S . 1 B 0 5
S 4 - 6
S - V E R . 0 0 2 8
S 4 - 7
S - S U M . E 4 7 6 8 0 D 8
S 4 - 8
D 1 - V . 1 . 0 8 r 2
S 4 - 9
D 1 - S . F C 6 F A 1 2 4
S 4 - 1 0
I N V A L I D I T E M
S 4 - 1 1
I N V A L I D I T E M
S4-1. SYSTEM VERSION
The firmware version is displayed.
S4-2. MICROPROCESSOR VERSION
The firmware version of MICROPROCESSOR (IC83 on DIGITAL (1) P.C.B.) is displayed.
S4-3. MICROPROCESSOR CHECKSUM
The checksum value of MICROPROCESSOR (IC83 on DIGITAL (1) P.C.B.) is displayed.
S4-4. FLASH ROM VERSION
The firmware version of FLASH ROM (IC77 on DIGITAL (1) P.C.B.) is displayed.
S4-5. FLASH ROM CHECKSUM
The checksum value of FLASH ROM (IC77 on DIGITAL (1) P.C.B.) is displayed.
S4-6. NETWORK MICROPROCESSOR VERSION
The firmware version of Network microprocessor (IC951 on DIGITAL (1) P.C.B.) is displayed.
S4-7. NETWORK MICROPROCESSOR CHECKSUM
The checksum value of Network microprocessor (IC951 on DIGITAL (1) P.C.B.) is displayed.
S4-8. DSP1 VERSION
The firmware version of DSP1 (IC921 on DIGITAL (1) P.C.B.) is displayed.
S4-9. DSP1 CHECKSUM
The checksum value of DSP1 (IC921 on DIGITAL (1) P.C.B.) is displayed.
S4-10. INVALID ITEM
Not for service.
S4-11. INVALID ITEM
Not for service.
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RX-V675/HTR-6066/RX-A730/TSR-6750
RX-V675/HTR-6066/
RX-A730/TSR-6750