Yamaha DRX-1 Service Manual page 67

DSW DVIO TESTS
Start Diagnostic Software
and select Command mode
DVIO Board Presence Test
Command: 800
OK
Reset DVIO Test
Command: 801
OK
DVIO Access Test
Command: 802
OK
DVIO Module ID's Test
Command: 804
OK
DVIO Selftest
Command: 805
OK
DVIO DSW CHECK OK
6. DVIO Board-3
NOK - Check DVIO Board
- Check Connector 1500
- Check IC7303
NOK
- Check IC 7203
- Check DVIO Board
NOK
- Check Connector 1500
- Check Digital Board
- Check IC 7303
NOK
- Check IC 7404
NOK
Fig. 24
Check ERROR LIST
in COMPAIR
DRX-1
67