4-26
OEP-3 V1 (UC)
4-3-3. Outline of Motor Drive Function Blocks
The motor drive circuit of a mechanical control block consists of the following circuits.
.
Fan motor drive circuit
.
Ribbon motor drive circuit
x
2
.
Paper feed/delivery motor drive circuit
.
Head motor drive circuit
.
Tray motor drive circuit
.
Platen motor drive circuit
1. Fan motor drive circuit
The fan motor is driven by turning on the transistor (Q616) on the SE-539 board using the control signal
from pin 11 of IC9. The fan motor is rotated when the head temperature exceeds the fixed value during
printing and in the standby state.
FAN_MOTOR_BLOCK
PRT-13
SE-539
15P
IC9
CN601
30P
1P
CN601
FAN_MTR
IC_FAN
FAN_MTR
R649
1k
Q616
2SD999-T1CK
+12V
CL641
R680
0
CL642
CN602
CL644
SN74LV541ANSR
(2/9)
IC601
CN603
C632
10uF
16V
CN606
C633
0.1uF
CL640
CL643
+12GND
GND
2
HED_FAN
1
17
3
GND
2
HED_FAN
1
GND
2
HED_FAN
1
Summary of Contents for OEP-3
Page 1: ...COLOR VIDEO PRINTER OEP 3 SERVICE MANUAL Volume 1 1st Edition...
Page 6: ......
Page 80: ......
Page 119: ...4 11 OEP 3 V1 UC Memory Configuration Eight Frame Memory Configuration Four Frame...
Page 154: ......
Page 165: ...5 11 OEP 3 V1 UC 5 5 Direct Chuck Mechanism...
Page 176: ...2000 9 22 OEP 3 UC E 9 955 247 11...