DOWNLOAD Panasonic KX-PX1EX Service Manual ↓ Size: 3.09 MB | Pages: 124 in PDF or view online for FREE

Model
KX-PX1EX
Pages
124
Size
3.09 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / HOME PHOTO PRINTER
File
kx-px1ex.pdf
Date
PREV: Panasonic KX-PX1CX Service Manual

Panasonic KX-PX1EX Service Manual ▷ View online

105
KX-PX1EX
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(2)
(3)
(1)
C
VTH
+3.3VDCV
C
0.1u/50V
C10
9
10u/35V
C110
H
H
C
H
L22
CL53
CL54
CL55
CL56
CL57
CL58
CL59
CL60
CL61
CL62
CL63
CL64
CL65
CL66
CL68
CL69
CL70
CL67
50
27p
C107
16
100n
C108
L12
L6
L7
L8
L9
L10
L11
L14
L13
L16
L5
L15
CN9
27
CN9
15
CN9
11
CN9
26
CN9
3
CN9
2
CN9
7
CN9
25
CN9
14
CN9
1
CN9
20
CN9
24
CN9
19
CN9
16
CN9
4
CN9
23
CN9
12
CN9
5
CN9
29
CN9
18
CN9
22
CN9
10
CN9
28
CN9
17
CN9
21
CN9
13
CN9
9
CN9
6
CN9
30
CN9
8
L17
HEAD
Thermistor
R25 :10k/B:3380K
DATA10
DATA5
DATA2
CLK
VH
DATA8
VH
GND
STB1#
STB2#
GND
DATA1
VH
GND
DATA9
VH
GND
TM
LAT#
GND
VDD
VH
DATA7
GND
DATA4
DATA3
VH
VH
DATA6
GND
VDG4(Clock enable)
VDCLK(16MHz)
C L K
1
128
127
128
129
130
131
132 133
134
2
1
2
127
128
1
2
127
128
1
2
3
S T B
L A T
VDG3(Strobe)
VDG2(Latch)
VDG[1:0],VDB[7:0](Data)
[CPU output signal]
M D [ 9 : 0 ]
16MHz
CP5
-1
CP5
-2
CP5
-3
KX-PX1EX MAIN SCHEMATIC DIAGRAM No.5 (2/2)
Signal waveform 
[Print head side]
Head Side
106
KX-PX1EX
12.1.5.
DC/DC Converter
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
Inrush current prevention
Electric
current
LOW is input at time of energy 
conduction current search
Gently alters at G 
terminal input capacity
Energy current is limited
fosc=1/(1.1*C118*R173+0.8us)
Protection circuit at time of energy 
conduction current search
Oscillatory frequency setting
For soft start
PWM
Pulse
output
Dead band (OFF period) setting
Step
down
or
imparting
channel
comparator
From UVL
100u/35V
C111
470p/50V
C118
8.2k
R173
1u/16V
C11
9
2700p/50V
C124
240
R183
39
R182
100k
R177
10k
R17
9
330p/50V
C121
H
C
C
C
C
3.3k
R187
3.3k
R186
240
R180
5600p/50V
C123
+24V
C
1u/16V
C114
330p/50V
C120
10k
R178
100k
R176
4700p/50V
C122
4.7k
R16
9
3
9
0k
R168
+24V
+24V
+24V
4700p/50V
C126
+24V
+24V
H
H
C
0
R167
PWRON
004:1B;008:4C
36k
R174
56k
R175
22
R181
VTHON#
004:1D
+24V
0.1u/50V
C115
0.1u/50V
C116
18k
R71
56k
R72
1u/16V
C26
36k
R70
18k
R117
CL83
CL84
C
FGA
FGC
C
C
FGD
C
FGE
C
FGF
C
C
Q6
1
3
2
Q11
1
3
2
Q12
1
3
2
D4
1
2
3
D5
1
2
3
36k
R170
56k
R171
0
R159
0
R133
NC
R161
0
R138
0
R162
1n
C174
IC20
1
SGND
2
CT
3
RT
4
IN+1
5
IN-1
6
E/O1
7
DB1
8
CL1
9
OUT1
10
PGND
11
PVIN
12
OUT2
13
CL2
14
DB2
15
E/O2
16
IN-2
17
ON/*OFF
18
TIM
1
9
Vref
20
SVIN
1
C112
1
C125
Q112
1
S1
2
S2
3
S3
4
G
5
D1
6
D2
7
D3
8
D4
220k
R294
220k
R2
9
5
C
L112
L113
NC
L115
NC
L117
0
R298
0
R299
0
R300
0
R301
JK1
3
4
2
DC24V in
H ON
"H" ACTIVE
NC
&3
9'%
5
9
5
5
  9UHI
I26&
7
 
'XW\'%
9
7+
9'%
 
97+ 97/
9
9W\S
9W\S
*1'
2II
2Q
7
7+
9,1
97/
9'%
9(2
'%
3:0
7R9UHI
(2
N
9
V
DB
C
ST
R
1
V
IN
R
2
C
T
CP6
-4
KX-PX1EX MAIN SCHEMATIC DIAGRAM No.6 (1/2)
+RZHYHU
107
KX-PX1EX
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
CP6
-2
CP6
-3
CP6
-7
CP6
-5
VTH voltage adjusting 
variable resistor
At the time when DC24 
is input, operation has 
already commenced
(Set to OFF at time of energy 
conduction current occurrence)
DCDC controller 
Regulator (1.4V)
Vref
Pressure reduction switching power source
Reference voltage
Mechanical CPU (IC8) 
specific power source
Pressure reduction 
switching power source
Vref: Reference voltage
DCDC controller 
At the time when DC24 is input, 
operation has already commenced
(Set to OFF at time of energy 
conduction current occurrence)
D7
1
2
H
+24V
0.1u/50V
C12
9
10
R1
9
0
VM
H
H
10
R1
9
1
H
+24V
H
0.1u/50V
C128
H
VTH
D6
1
2
13k
R1
9
4
C
C
D
9
1
2
+5V
4.7
R199
0.1u/50V
C138
10
R1
9
8
H
H
4.7
R197
0.1u/50V
C137
+3.3V
H
H
10
R1
9
6
D8
1
2
1u/16V
C142
H
H
H
H
+1.4V
H
H
1000p/50V
C133
1000p/50V
C132
VTH
VM
+5V
+3.3V
+1.4V
PG
H
H
C
+5V
C
+3.3LV1
Q107
1
3
2
C
+3.3LV1
13k
R1
9
2
2.2k
R1
9
3
1.8k
R1
9
5
25
470u
C134
25
470u
C135
C140
C143
C144
220
R262
16
100n
C164
16
100n
C165
1n
C170
H
H
1n
C171
H
1n
C173
H
1n
C172
H
1n
C175
500
VR1
1
2
3
H
C
L105
GND
Q8
1
2
3
4
5
6
7
8
Q9
1
D1
2
D2
3
G
4
S
5
D3
6
D4
Q10
1
D1
2
D2
3
G
4
S
5
D3
6
D4
47m
R18
9
15m
R188
IC23
1 CE
2
GND
3 VFB
5
VIN
4
EXT
IC22
1 CE
2
GND
3 VFB
5
VIN
4
EXT
IC24
1
VOUT
2 GND1
3
CE
4
NC
5
GND2
6
VDD
2.2
C130
2.2
C131
1
C13
9
C141
1n
C245
1n
C244
L18
15u
L19
68u
100u
L20
L21
220u
Q7
1
2
3
4
5
6
16
100n C258
H
D16
1
2
3
NC
L120
0
R302
VTH
VM
+5V
+3.3V
+1.4V
+3.3LV1
VM=17.3V
CP6
-2
CP6
-3
CP6
-6
CP6
-5
CP6
-9
CP6
-7
CP6
-8
KX-PX1EX MAIN SCHEMATIC DIAGRAM No.6 (2/2)
108
KX-PX1EX
12.1.6.
KEY/LED/SENS
+3.3V
MODI
FGSEN
MODSEN
MODINIT
004:1E
FGSEN
004:1E
MODSEN
004:1D
SW1
3
1
2
4
C
C
C
150
R16
+5V
+3.3V
100
R5
IC2
2
1
4
3
IC27
1
2
3
4
Mode_Initialize
Mode_Sensor
FG_Sensor
MOTSEN_BLOCK
CP7
-1
CP7
-2
CP7
-3
H:1.3V
L:1.0V
KX-PX1EX MAIN SCHEMATIC DIAGRAM No.7 (1/2)
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