Yamaha RX-V465 Service Manual
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Brand: Yamaha
Category: Receiver , Stereo Receiver
Type: Service manual
Model: Yamaha HTR-6240 , Yamaha RX-V465 , Yamaha AX-V465
Pages: 147
22
RX-V465/HTR-6240/
AX-V465
RX-V465/HTR-6240/AX-V465
25. ROM VER/SUM/PORT
The firmware version of microprocessor (IC20 DIGITAL P.C.B.) is displayed.
The checksum value of microprocessor (IC20 DIGITAL P.C.B.) is displayed.
The firmware version of TI (DSP) FLASH ROM (IC49 DIGITAL P.C.B.) is displayed.
The checksum value of TI (DSP) FLASH ROM (IC49 DIGITAL P.C.B.) is displayed.
The model name and destination are displayed.
Not applied to these models.
■ UPDATING FIRMWARE /
Note) The user memories (sound field parameters,
system memory, tuner presetting, etc.) are kept
stored even when you write the firmware.
When replacing the following parts, be sure to write the
latest firmware.
● Confirmation of firmware version and checksum
Before and after writing firmware, check the firmware
version and checksum by using the self-diagnostic
function menu.
Start up the self-diagnostic function and select “25.
ROM VER/SUM/PORT” menu. (See “SELF DIAGNOSTIC
FUNCTION”)
Using the sub-menu, have the firmware version and
checksum displayed, and note down them.
Replaced parts
Writing method using the CD /
Writing method using PC (RS232C) /
DIGITAL P.C.B. yes yes
IC20 (Main microprocessor) of DIGITAL P.C.B. no yes
IC49 (TI (DSP) flash ROM) of DIGITAL P.C.B. yes yes
Firmware version
All checksum
TI (DSP) FLASH ROM version
TI (DSP) FLASH ROM checksum
MODEL/DESTINATION
VERIFY error