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2.4
EMERGENCY DISPLAY FUNCTION
This model has a function to save emergency information in a flash ROM (IC3003).
To obtain the emergency information, read the data using terminal software.
There are types of terminal software including Windows HyperTerminal and freeware Tera Term.
2.4.1 Jig connector cable
Connect the model to the serial port of the PC using the jig connector cable and the serial update jig (or communication cable).
Note) As the jig connector cable (Part No.: YTU93106B) is not extended, adding a wire is required.
How to work on the jig connector cable (YTU93106B)
<Soldered side>
11
Serial Update Jig
To be used to connect the PC cable and the Jig connector ca-
ble for firmware repair and various analyses.
Serial Update Jig
YTU93113A
12
NOT USE
11
UA_TXD0
10
GND
9
GND
8
NOT USE
5
NOT USE
Additional wire
Connection procedure
·
Remove the 4 screws (1-4), and then remove the COV-
ER(HIN) ASSY.
1
3
COVER(HIN) ASSY
2
4
JIG CONNECTOR
(MAIN CN110)
10
20
JIG CONNECTOR CABLE
JIG CONNECTOR
(YTU93106B)
SERIAI UPDATE JIG
(YTU93113A)
NC
(NOT USED)
JIG CONNECTOR
SERIAI UPDATE JIG
BLUE
TO AL_2.83V
RED
TO UA_RXD0
WHITE
TO UA_TXD0
YELLOW
NC(NOT USED)
BLACK
TO GND
1
11
CONVERSION CONNECTOR
(YTU94145K-20)
RS232C
COM PORT
TERMINAL
SOFTWARE
PC CABLE
PC
(No.YF335<Rev.001>)1-9
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