Sony MDDISCAM DCM-M1, Service Manual

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7-2. Firmware Data Writing Method
Write the data by the method given below, when the Main board
or the Flash Memory (IC8005) and MPEG Control (IC8501)
mounted on the MAIN board were replaced.
2-1. Preparation
1. Measuring Equipment
To write the data, use measuring equipment listed below:
1) Personal computer (Windows95/98 installed)
2) Hyper Terminal (Communication software attached to the Win-
dows)
3) Firmware Writer Ether Flash BB(U)
Part code: J-2503-019-A
4) MPEG RATE CONTROL
Part code: J-2503-020-
s
5) RS-232C Cable D-Sub 9pin (Female) (Cross cable type)
6) Regulated power supply
7) AC Adaptor/Charger (AC-VQ800)
2. Connection
1) Disconnect the CN8801 of ETHER board from the CN8007
of MAIN board, and connect the Ether Flash BB instead.
Note:
Be careful of the connection direction when connecting
the Ether Flash BB.
2) Connect the CN7 of Ether Flash BB and the personal com-
puter with the RS-232C Cable (Cross cable type).
Fig.7-2-1
*1 Regulated power supply
(15 Vdc)
TP5002
GND
TP8047
TEST
Test pins
MAIN BOARD
POWER BOARD
Cabinet (R)
AC adaptor/charger
(AC-VQ800)
Ether Flash BB
RS-232C Cable
(Cross cable Type)
2 1
CN3
CN6
CN7
*1 Use the regulated power supply and
MPEG RATE CONTROL when
MPEG Control (IC8501) was replaced.
CN8007
Personal computer
to RS-232C
*1 MPEG RATE CONTROL