IBM V03 Maintenance Information page 13

Ground path diagram
Paper Feed
Stepper Motor
+38V
Ribbon Shifter
Stepper Motor
+38V
AFTA Stepper
Motor
J9
J8
+38V
J32
Carriage Brushless
DC Motor
+38V , +5V
J17
AC Power
Line 2/Neutral
AC
Line 1
IN
choke
3
On/Off
4 Switch
choke
CHASSIS GND
+38V
Print Head Board
18 Needles
+38V , +5V
4247 V03 Base Board
GND
J4 & J5
GND
J12
J10
GND
J13
WR2 P2 P1
15
WR1
GND
POWER SUPPLY BOARD
I
O
SW1
P3
+24V
choke
4
3
Ground Path Diagram
(*)
Adapter Board (*)
- Serial
Option
-Coax / Twinax
-Lan
+38V , +5V
Parallel I/F
+5V
GND
U1081
J15
GND
CHASSIS GND
+5V
Sensors (*)
.
.
.
+38V , +5V
.
GND
Front/Rear Tractor Switch
.
and Sensors (*)
1
+24V
Fan for Base Board
1
Carriage Motor Fan
2
6
Attention Light
+38V
GND
GND
Control Panel Assembly
+38V , +5V
1
5
(*)
-Ribbon Movement sensor
-Front Tractor paper present sensor
-Rear Tractor paper present sensor
(*)
-Front Tractor paper run sensor
-Rear Tractor paper run sensor
6
See next page
Safety and environmental notices
13