Toshiba RAV-SM2244DTP-TR Service Manual page 52

[E10]
Is the
connection for the
UART communication
connector (MMC-1643
CN521, MCC-1610
CN505) abnormal?
Is connector
lead wire for the UART
communication
cut?
Red LED (D640)
of MCC-1610 not
illuminated.
Fault with the MCC-1643
→ Replace
Yes
No
Yes
No
Yes
No
– 52 –
Repair of connector
connection.
Replacement of the
connector's lead wire.
Check the power
supply of MCC-1610