42114101 Rev.1
15 /
(6)
LSI
This LSI detects and controls the SP motor speeds by monitoring the two phase sensor
signals obtained from the DC motors and modifying the excitation phases as appropriate.
This LSI is connected in multiplex to the MPU.
MPU
A/D bus
LSI
RD
WRL
P01
ALE
ALE
RD-N
WRL-N
LSICS-N
ALE-P
RDN
WRL
LSIC
RAS 1
P07
RAS 0
RAS-N
Clockout*
A0~A19
LSICS-N
ALE
D0~D7
(Read)
RD-N
D0~D7
(Write)
WRL-N
Address
Address
Data
Data
* Clockout is provided when the original
excitation is selected.
Summary of Contents for ML490 Series
Page 1: ...42114101 Rev 1 1 135 ML490 491 PRINTER Maintenance Manual ODA...
Page 2: ...42114101 Rev 1 2...
Page 38: ...42114101 Rev 1 38 Drive gear Ink tank Ribbon cartridge Figure 2 6...
Page 48: ...42114101 Rev 1 48 Change arm Change lever Platen Release cam Figure 2 13 REAR TOP BOTTOM...
Page 96: ...42114101 Rev 1 96 9 Carriage Assy NK2 10 SUS Bearing portion of guide roller EM 30L B...
Page 119: ...42114101 Rev 1 119 6 8 9 7 1 2 3 11 10 4 5 Figure B 2 Printer General Assy...
Page 124: ...42114101 Rev 1 124 9 12 11 1 13 3 7 1 14 5 6 7 2 10 8 Figure B 4 Carriage Assy...
