Topfield TF4000FI, Service Manual, Page: 52 / 62

A A
B B
C C
D D
E E
4
4
3
3
2
2
1
1
ASIC
1.4
TF4000Fi
B
41
2
, 3
15, 2004
월요일
월
Title Si
ze
Document Number
Rev
Date:
Sheet
of
nRESETIN
CICS
CS1
MD0
ROMBDIN
SCLK
SCL5V
MD1
MONCS
RESET
MA
17
CS0
nRESET IN
MD7
SDA5V
MWEN
MD2
nFLASHCS
MA19
MA18
CICS SCLK RESET MWEN MA[1..21] MD[0..15]
SDA5V SCL5V
SDARF
SCLRF
+3.3V
+3.3V
+3.3V
+5V
+3.3V
+3.3V
R72
0
R68 2.2K
BC29 0.1uF
BC31 0.1uF
U7 TF301SC15
1 2 3 4 5 6 7 8 9
10 11
12
13
14
15
16
17
18
19
20
21
22
23 24 25 26 27 28 29 30 31 32 33
34
35
36
37
38
39
40
41
42
43
44
IO0 IO1 IO2 GND IO3 IO4 IO5 IO6 VCC IO7 GND
IO8
IO9
IO10
IO11
GND
VCC
IO12
IO13
IO14
IO15
IO16
IO17 GND IO18 IO19 IO20 IO21
VCC
GND IO22 IO23 IO24
IO25
IO26
GND
IO27
IO28
IO29
IO30
VCC
IO31
IO32
IO33
BC30 0.1uF
C23 0.47uF/2012
R76
X(2.
2K)
R69 10K
U8 ELM9727NBA
1
2
3
VCC
GND
OUT
R74
X(2.
2K)
TP_
R
S
T
1
1 U9A X
(74LS05)
1
2
14 7
U9D X
(74LS05)
9
8
14 7
R77
2.2K
R78
2.2K
R81
0
ROMBDIN MONCS CS1 CS0 nFLASHCS
RESET
MD[0..15]
SCLK
MA[1..21]
CICS
MWEN
SDARF
SCLRF