(No.YF335<Rev.001>)1-9
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)
Serial Update Jig
To be used to connect the PC cable and the Jig connector ca-
ble for firmware repair and various analyses.
Connection procedure
·
Remove the 4 screws (1-4), and then remove the COV-
ER(HIN) ASSY.
11
Additional wire
<Soldered side>
8
RKP
NOT USE
9
RKP
GND
5
RKP
NOT USE
12
RKP
NOT USE
11
RKP
UA_TXD0
10
RKP
GND
Serial Update Jig
YTU93113A
TO UA_RXD0
TO AL_2.83V
TO UA_TXD0
NC(NOT USED)
TO GND
SERIAI UPDATE JIG
(YTU93113A)
NC
(NOT USED)
1
2
4
3
10
20
1
11
JIG CONNECTOR
SERIAI UPDATE JIG
JIG CONNECTOR CABLE
(YTU93106B)
JIG CONNECTOR
COVER(HIN) ASSY
JIG CONNECTOR
CONVERSION CONNECTOR
(YTU94145K-20)
PC CABLE
TERMINAL
SOFTWARE
PC
RS232C
COM PORT
BLUE
RED
WHITE
YELLOW
BLACK
(MAIN CN110)