Motor Driving Circuit - Eiki LC-XG110 Service Manual

Chassis Block Diagrams

Motor driving circuit

29
IICSCL
IC801
CPU 30
IICSDA
MAIN BOARD
Logic Table of Drive ICs (IC5501,IC5531, IC6501)
Input Output
4 5 7
H L L
L H H
H H L
L L Open Open Standby Mode
K8G K55B
2
5 5
3
4 4
AUDIO BOARD
Operation
1
H Forward drive
L Reverse drive
L Braking Mode
IC5501
4,5 4,5
FOCUS DRIVE
<BA6287>
IC5531
6,7
4,5
ZOOM DRIVE
<BA6287>
IC5561
9,10
18,20
LENS SHIFT DRIVE
<BA6920>
IC6501
4,5
11,12
BRIGHT DRIVE
<BA6287>
Logic Table of Drive ICs (IC5561)
Input Output
18 20 5 9
H L L H
L H H L
H H L L
L L Open Open Standby Mode
-43-
FOCUS
K55F
1
1
M
7
2
ZOOM
1
3
M
7
4
LENS SHIFT
K55G
9
1
M
5
2
BRIGHT
K55E
1
1
M
7
2
Operation
Forward drive
Reverse drive
Braking Mode