Service manual

8 7 6 5 4
3
2 1
A B
C D
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D C
B A
4) LOGIC
/INTHR
VCC
1 2
3
IC11A
74HC08
D
2
CP
3
Q
5
Q
6
S D
4
R D
1
IC9A
74HC74
D
12
CP
11
Q
9
Q
8
S D
1 0
R D
1 3
IC9B
74HC74
VCC
SA13
/RD
/LRES SA15
/INTSW1
PLLVCC
PLLVSS
C87 10uF
SD[0..7]
SA[0..15]
SA15 SA13
/LRES
/RD
(R79)
0
4 5
6
IC13B
74HC00
4 5
6
IC12B
74HC32
12 13
11
IC12D 74HC32
9 10
8
IC12C 74HC32
VCC
SD[0..7]
/WR
/DPCS
SD6 SD4 SD2 SD0SA11 SA7 SA9 SD1 SD3 SD5 SD7 SA8
SA10 SA13 SA14 SA15
SA[0..15]
1 3 5 7 9 11 13 15 17 19
21 23 25 27 29 31 33 35 37 39
4 6 8 10 12 14 16 18 20
22 24 26 28 30 32 34 36 38 40
2
CN1
CON40P
/LRES
/INTSW1 /INTSR1
/INTSW1 /INTSR1/RD
2 1
C85 100pF
SA1 SA3 SA5 SA6 SA4 SA2 SA0
2 1
C83
100pF
2 1
C86
100pF
2 1
C84 0.01uF
/WR
/DPCS
SA14
/DPCS
/WR
SA14
(R80)
0
4 5
6
IC14B 74HC32
9 10
8
IC13C 74HC00
9 10
8
IC14C 74HC32
1 2
3
IC14A 74HC32
/HRACK /SWREQ
/HWACK
/INTHW
D
2
CP
3
Q
5
Q
6
S D
4
R D
1
IC10A
74HC74
D
12
CP
11
Q
9
Q
8
S D
1 0
R D
1 3
IC10B
74LV7HC
4 5
6
IC11B 74HC08
VCC
[IC14]
2 1
C81 0.1uF
/SRREQ
VCC
2 1
C78 0.1uF
[IC11]
VCC VCC
[IC12]
VCC
[IC10] [IC13]
2 1
C80 0.1uF
2 1
C79 0.1uF
2 1
C82 0.1uF
/INTSR1
VCC
[IC9]
2 1
C76 0.1uF
INT0
/INTLAN
R146 4.7k
12 13
11
IC13D
74HC00
12 13
11
IC14D
74HC32
/RSTDRV
/CER
SA13
RSTDRV
/LRES /DPCS
12 13
11
IC11D
74HC08
1 2
3
IC13A 74HC00
1 2
3
IC12A 74HC32
9 10
8
IC11C
74HC08
7Pin : GND 14Pin : VCC
*IC9,10,11,12,13,14
===NOTE===
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