Read Panasonic KX-PMF3 Service Manual online
1
Electronic Circuit Description and Diagrams
2
1.1.
Block Diagram
2
1.2.
General Descriptions
2
1.3.
Schematic Diagram
4
2
Troubleshooting
6
3
Replacement Parts List with Lubrication Guide
7
KX-PMF3
3.1.
Covers
7
3.2.
8
3.3.
Cassette
11
3.4.
Packing Material
12
3.5.
Feeder Board
13
2nd Feeder
CONTENTS
Page
Page
Order Number:KM60111625C0
G0
1 Electronic Circuit Description and Diagrams
1.1. Block Diagram
1.2. General Descriptions
Following is a brief description of the 2nd feeder board and major electrical component.
1.2.1. Motor Drive Circuit
The motor (2-phase stepping motor) is driven by IC600 (unipolar constant current driver). When the nMOEN_OP signal is low, the
current flows the motor.
current flows the motor.
When the signals are output as shown below, the motor rotates.
Timing Chart
2
KX-PMF3
1.2.2. Pickup Clutch Drive Circuit
The pickup clutch is driven by the transistor (Q601). When the nPUCTL_OP signal is low, paper is fed from the tray.
Timing Chart
3
KX-PMF3
1.3. Schematic Diagram
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
0.1u
C611
100p
C600
100
R608
100
R609
100
R607
10k
R602
10k
R603
10k
R604
10k
R605
35V
47u
C609
J600
180
R606
POWER(+24V)
GND(FG)
GND(+24V)
0.1u
C607
0.1u
C610
IC601
5
6
IC601
13
12
IC601
9
8
IC601
11
10
IC601
14
VCC
7
GND
IC602
14
VCC
7
GND
0.1u
C608
6.3V
47u
C612
PI600
0.1u
C601
0.1u
C602
GND(FG)
C615
C614
R618
R619
GND(+24V)
GND(FG)
Not Mounted
Not Mounted
3
2
1
+5V
CN602
5VGND
nMOEN_OP
nPNON_OP
nOPTION
nPUCTL_OP
24VGND
+5V
+24V
CLOCK_OP
nMOEN_OP
nPNON_OP
nOPTION
nPUCTL_OP
24VGND
+5V
+24V
CLOCK_OP
4
KX-PMF3