Rm-Br300 - Sony BRC-300 Service Manual

1-6-4. RM-BR300

Firmware has not been written in the MC-66 board or the
MPU (IC5004/MD-131 board) specified as a service part.
After replacing the MD-131 board or the MPU (IC5004),
write the firmware.
Equipment/Tools
. PC (Personal computer)
PC with the firmware writing program installed
(Refer to Section 1-6-1.)
. VISCA RS-232C cable (Supplied with this unit)
. Firmware file: "controlier.mot"
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To get the firmware, please contact your local Sony
Sales Office/Service Center.
Connection Diagram
RM-BR300
VISCA RS-232C IN
VISCA RS-232C
cable
BRC-300/300P
BRU-300/300P
RS-232C
PC
Writing Procedure
1. Remove the outer (upper) assembly.
(Refer to Section 1-5-1.)
2. Connect the equipment and tools, referring to Connec-
tion Diagram.
3. Set the switch S5006-2 on the MD-131 board to ON.
4. Turn on the power of each equipment.
5. Write the firmware, referring to step 5 in Section 1-6-
2.
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Selecting firmware file is "controller.mot".
6. Turn off the power switch of the RM-BR300.
7. Reset the switch S5006-2 on the MD-131 board to
OFF.
8. Reattach the outer (upper) assembly.
(Refer to Section 1-5-1.)
9. Turn on the power switch of the RM-BR300.
10. Press the MENU button for two seconds while press-
ing the RESET, PRESET, and L/R DIRECTION
buttons simultaneously.
11. Check that the blinking speed of the indicator changes,
and turn off the power of each equipment.
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