(No.RA073<Rev.001>)1-65
Checking the operation of IC2 (/PSW and /IGN)
Check that the signal /PSW (IC2-10pin) and /PSW_OUT (IC2-15pin) are linked
with the power key on KCH-20R in power on state.
Check that the signal /PSW and /PSW_OUT are
0V during the power key is pressed.
IC2 is broken.
IC2 or the circuit of the signal /IGN is broken.
IC2 is broken.
IC2 or the circuit of the signal /PSW is broken.
If the ignition function is enabled, check that the signal /IGN (IC2-8pin) and
/IGN_OUT (IC2-9pin) are linked with the ignition sense.
When the ignition sense has voltage (set within the
operating voltage range), check that the signal
/IGN and /IGN_OUT are 0V.
When both /PSW and
/PSW_OUT are not linked
with the power key.
When /PSW is linked and
/PSW_OUT is not linked
with the power key.
When both /IGN and
/IGN_OUT are not 0V.
When /IGN is 0V and
/IGN_OUT is not 0V.
A. IC2 is written the program.
B. MPU/DSP (IC706) communicates with IC2 by serial communication at startup of deck.
Only firmware version of IC2 is confirmed IC706 in serial communication.
Even when firmware version of IC2 cannot be acquired, the system of IC2 is started.
C. If there is the difference of firmware version between IC2 and IC706,
the firmware version of IC2 is updated with the serial communication by IC706.
“Upgrading MSP···” is displayed on the LCD during the firmware update. When the firmware update fails,
the system of IC2 is started and IC706 is trying to update again at next startup.
Remarks related MSP430G25XXXX (IC2)
Содержание NX-5700HB
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