Matrix T7X-02 - 02 B9; 02 BA; 02 BD Error Troubleshooting

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CHAPTER 8: TROUBLESHOOTING
8.11 02B9 / 02BA / 02BD ERROR TROUBLESHOOTING
ERROR MESSAGE 02B9 / 02BA / 02BD
1) SYMPTOM:
a. 02B9 - The inner memory IC data write error.
b. 02BA - The inner memory IC data read error.
c. 02BD - Inverter hardware interrupt error.
2) SOLUTION:
a. Check LED DSP1 (MCU) on the MCB (Figure A).
b. If this LED is blinking, replace the console.
c. If this LED is a constant light, replace the MCB.
d. If this LED is not lit at all, check the power to the MCB.
FIGURE A