HL-5130/5140/5150D/5170DN SERVICE MANUAL
3-15
1.3.13 Video
I/O
The video signal output from the ASIC is reversed through a transistor and output after being
corrected by the buffer IC.
<HL-5130/5140/5150D>
2D
BDN
3D
VDON0
3D
ENBN0
VDD5
VDD5
R22
680
C7
C102
VDD5
R4
220k
R9
100
C14
C471
Q1
C3735
C
B
E
R5
1k
VDD3
R21
680
0V
0V
0V
L1
BLM18RK221
VDD3
R14
680
R13
330
1/10W
0V
0V
C6
C103
C3
C103
C8
C101
C5
C270
1
BD
CN3
5
DATA1
2
ENB1
3
+5V
4
GND
R6
0
R8
0
TP230
TP231
TP232
TP233
TP234
TP235
U1
TC7SH08FU
1
B
4
Y
5
VCC
2
A
3
GND
VDD3
R111
330
1/10W
Fig. 3-25
<HL-5170DN>
1D
BDN
2D
VDON0
2D
ENBN0
VDD5
L7
0
VDD5
L6
0
R21
680
C22
C102
VDD5
R7
220k
R13
100
C27
C471
Q3
C3735
C
B
E
R8
1k
VDD3
R19
680
0V
0V
L5
0
0V
L3
BLM18RK221
L4
0
VDD3
R16
680
R15
330
1/10W
0V
0V
C21
C103
C18
C103
C23
C101
C20
C270
1
BD
CN1
5
DATA1
2
ENB1
3
+5V
4
GND
R10
0
R12
0
TP230
TP231
TP232
TP233
TP234
TP235
U2
TC7SH08FU
1
B
4
Y
5
VCC
2
A
3
GND
VDD3
R151
330
1/10W
Fig. 3-26