Schematic Diagrams
B - 26 COM Port, Fan, Parallel Port
B.Schematic Diagrams
COM Port, Fan, Parallel Port
Sheet 25 of 38
COM Port, Fan,
Parallel Port
DCD#
26
LPTACK#
RXD
C622
1 U_1 0V _ 06
LPD0
LPD3
LN1
FCA3216KF4-121 T03
1
2
3
4
5
6
7
8
R153
10K_04
LPPE#
CPU_FANSEN
24
LPSTROBE#
SPKROUT
/WGATE#
TXD
26
CN9
8P4CX180PF
1 2 3 4
5
6
7
8
LPD1
LPTERROR#
26
R156
4.99K_1%_06
PCBEEP
LPPE#
LPERROR#
3.3VS
LPTD[0..7] 26
LPTD0
+
-
U9A
LM358-01
3
2
1
8
4
/HDSEL#
LPTBUSY #
26
/DENSEL#
LPD4
L19
HCB2012K-500T40_08
LPD5
TXD
RTS#
26
R159
4.7K_04
Q12
NDS352AP_NL
G
D
S
LPTACK#
26
RXD
26
LPAFD#
J_COM1
COM1
5
9
4
8
3
7
2
6
1
/RDATA#
LPAFD#
DSR#
/DSKCHG#
RING#
26
RN17
8P4RX220
8
1
7
2
6
5
3
4
CTS#
26
LPTD3
LPSLCTIN#
CN7
8P4CX180PF
1
2
3
4
5 6 7 8
RN49
8P4RX4.7K
8
1
7
2
6
5
3
4
D4
SCS551V-30
A
C
/WP#
FAN_DC_VOL
LPD7
RN47
8P4RX4.7K
8
1
7
2
6
5
3
4
PCBEEP
16
LPTINIT#
LPTD4
10mil
5VS
LPSLCTIN#
C631
0.1U_16V_04
/DRV1#/5V
BEEP
LPTBUSY#
C623
1 U_1 0V _ 06
LPTSLCTIN#
LPTAFD#
DCD#
VDD5
LN2
FCA3216KF4-121 T03
1
2
3
4
5
6
7
8
FAN_DC_VOL
R426
0_06
L29
FCM1608K-121T06_06
1
2
J_FAN1
8812-3
1
2
3
LPTSLCTIN#
26
LPBUSY #
/DRV0#
CPU_FAN
24
LPINIT#
U25
MAX3243CDBR
28
24
1
2
14
13
12
20
19
18
17
16
15
23
22
21
27
3
9
10
11
4
5
6
7
8
25
26
C1+
C1-
C2+
C2-
T1IN
T2IN
T3IN
R2OUTB
R1OUT
R2OUT
R3OUT
R4OUT
R5OUT
FORCEON
/FORCEOFF
/INVALID
V+
V-
T1OUT
T2OUT
T3OUT
R1IN
R2IN
R3IN
R4IN
R5IN
GND
VC
C
/TRK0#
LPTINIT#
26
DSR#
26
LPTD1
3
LPD6
LPACK#
LPBUSY #
C629
0.1U_16V_04
/MTR0#
LPD1
RTS#
R214
4.7K_06
? LOGO? ? R493DEL
D5
SCS551V-30
A
C
C630
0.1U_16V_04
LPD3
DTR#
LPTD7
LPTPE#
C628
2200P_50V_04
R421
1M_04
/DIR#
P IN
1 2 ~2 3= G G ND
3.3VS
BEEP 23
KBC_BEEP
LPTD2
LPTSTB#
3.3VS
LPD7
/WDATA#
LPTERROR#
KBC_BEEP
24
C636
0.1U_16V_04
C621
1 U_1 0V _ 06
C190
10U_10V_08
J_PRN1
DSM-B-25-S1-P
13
25
12
24
11
23
10
22
9
21
8
20
7
19
6
18
5
17
4
16
3
15
2
14
1
GN
D
1
GN
D
2
SPKROUT
21
LPSLCT#
LPTSTB#
26
/STEP#
/MTR1#
LPTPE#
26
LPTD5
R413
100K_06
40MIL
LPTSLCT#
26
LPD2
CN10
8P4CX180PF
1 2 3 4
5
6
7
8
CN8
8P4CX180PF
1
2
3
4
5 6 7 8
VDD5
RN16
8P4RX220
8
1
7
2
6
5
3
4
LPINIT#
C187
*1U_16V_04
LPSLCT#
PC BEEP
LN4
FCA3216KF4-121 T03
1
2
3
4
5
6
7
8
C635
0.1U_16V_04
LN3
FCA3216KF4-121 T03
1
2
3
4
5
6
7
8
CN6
8P4CX180PF
1 2 3 4
5
6
7
8
LPTD6
C189
10U_10V_08
LPD6
LPD4
Parallel
PORT
3.3VS
1
LPTSLCT#
LPSTROBE#
LPACK#
C235
180P_50V_04
+
-
U9B
LM358-01
5
6
7
D6
1N4148
A
C
FAN CONTROL
LPD2
CN11
8P4CX180PF
1 2 3 4
5
6
7
8
R420
10K_04
3.3VS
LPD0
VDD5
LPERROR#
CTS#
U24
74AHC1G4GW
1
2
5
3
4
LPTAFD#
26
KBCBEEP
DTR#
26
LPTD[0..7]
C616
0.1U_16V_04
C186
0.1U_16V_04
U22
74AHC1G08GW
1
2
5
4
3
JFAN
LPD5
COM PORT
/INDEX#
C619
0.1U_16V_04
Summary of Contents for L295N
Page 1: ......
Page 2: ......
Page 3: ...Preface I Preface LCD Computer L295N L297N Series Service Manual...
Page 20: ...Introduction 1 12 1 Introduction...
Page 39: ...Part Lists L295N Base A 3 A Part Lists L295N Base Figure A 1 L295N Base 480MM L297T...
Page 40: ...Part Lists A 4 L295N Bracket AU A Part Lists L295N Bracket AU Figure A 2 L295N Bracket AU...
Page 41: ...Part Lists L295N Front A 5 A Part Lists L295N Front Figure A 3 L295N Front...
Page 43: ...Part Lists L295N Combo Drive A 7 A Part Lists L295N Combo Drive Figure A 5 L295N Combo Drive...
Page 45: ...Part Lists L295N FDD A 9 A Part Lists L295N FDD Figure A 7 L295N FDD...
Page 46: ...Part Lists A 10 L295N HDD A Part Lists L295N HDD Figure A 8 L295N HDD...
Page 47: ...Part Lists L297N Base A 11 A Part Lists L297N Base Figure A 1 L297N Base 480MM L297T...
Page 51: ...Part Lists L297N Front A 15 A Part Lists L297N Front Figure A 5 L297N Front...
Page 52: ...Part Lists A 16 L297N Combo Drive A Part Lists L297N Combo Drive Figure A 6 L297N Combo Drive...
Page 54: ...Part Lists A 18 L297N FDD A Part Lists L297N FDD Figure A 8 L297N FDD...
Page 55: ...Part Lists L297N HDD A 19 A Part Lists L297N HDD Figure A 9 L297N HDD...
Page 56: ...Part Lists A 20 Part Lists...
