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18.5. Timer Section (Main P.C.B. (3/3)) Schematic Diagram (T)
M
X SW 5.2V
TO P7101
LED P.C.B.
G
P7507
HDD SEL LED
H
DVD SEL LED
H
SD SEL LED
H
X SW 5.2V
GND
M
D3.3V
F
M
G UARTP2M A
M
G UARTM2P A
M
X SW 3.3V
M
G SBPTM A
E
M
G SBMTP A
M
G SCLK A
M
HDD PFAIL
L
D
M
XMPREQ
M
XINTM
M
XINTP
AV
M
G IIC CLK A
AV
M
G IIC DATA A
C
AV
AV2 BLANKING
M
X SW 12.4V
B
TO FAN MOTOR
P7504
FANDCOUT
GND
FAN LOCK
FAN MOTOR
M
FAN GND
A
M:Main Net Section(Page:
AI:A/V I/O Section(Page:
T:Timer Section(Page:
1
C7585
6V100
1
R7629
6800
2
C29
R7630
6800
3
C28
R7631
6800
4
C27
5
6
R7561 100
C2
C3
R7562 100
C4
R7579
LB7508
22K
J0JGC0000020
R7578 10K
R7564
100
C9
R7565
100
C10
R7566
100
C11
R7568 100
C14
QR7503
UNR521400L
(SWITCH)
1
2
3
C13
A
)
B
)
C
)
2
D7509
B0JDCE000002
3
4
2
1
5
4
NC
NC
IC7505
C0EBJ0000336
(RESET)
OUT VDD GND
1
2
3
C7577
0.1
R7619
10K
C1
IR7501
B3RAD0000092
REMOTE
CONTROL
RECEIVER
1 2 3
C7528 0.1
R7648 33
C7529 6V47
C7592 1
C6
R7532 3300
C7
C7523
0.01
X7502
H0A327200108
(32.768KHz)
C8
X7501
H0D100500018
(10MHz)
C7516
C7517
C7518
18P
18P
22P
R7550 22K
R7551 100
C12
TL7508
8
7
6
5
1
2
3
4
Q7511
B1ABMD000004
(FAN MOTOR DRIVE)
R7627 30K
C7590
R7626 820
0.1
3
4
5
4
NC
NC
IC7506
C0EBE0000457
(RESET)
OUT
VDD
GND
1
2
3
C7581 0.01
R7620 47K
R7622
15K
R7527 100
C7519
R7534 10K
18P
R7535 100
R7536 100
R7537 100
R7548 4700
TL7506
R7549 4700
TL7507
R7543 100
IC7503
R7544 100
C3EBJC000055
(EEPROM)
C7531
C7532
10P
10P
K7512 0
C7588
0.01
8
7
6
5
VDD
-
IC7507
+
C0ABBA000146
+
(FAN MOTOR DRIVE)
-
GND
1
2
3
4
C7587 1
R7624 10K
R7625
10K
5
TW7501
QR7507
UNR521000L
(SWITCHING)
QR7506
UNR521200L
(SWITCHING)
116
11
C7522 100P
DIG
1
S CLK
2
REMOTE CTL.
3 VSYNC
R7528 100
4
FL TXD
5
FL RXD
R7529 100
6
FL CLK
7
BYTE
R7651 4700
8
CNVSS
9
XCIN
R7531 100K
10
XCOUT
11
RESET
L
R7533 0
12
XOUT
13
VSS
14
XIN
15
VCC
16
XNMI
17
XMPREQ
18
XINTM
19
XINTM OUT
20
XINTP OUT
21
125Hz
TL7505
22
NET P ON
H
23
FAN PWM OUT
24
AV2 BLANK1
25
XSH RES
26
NET HIFRDY
27
FAN PWM OUT2
28
IIC CLK
29
IIC DATA
K7503
0
30
31
X SW+12.4V
6
56
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