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FO-4450U/FO-CS1
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT
A
[1] Main Control PWB circuit
CPU block
SHADG
6
LCDTH
( 9-2E)
5
MEMDTCT0
R351
(12-5E)
MEMDTCT1
(12-5E)
PCLDTCT
R291
(10-3I)
NICDTCT
R289
(10-6E)
R286
L101
R256
+3.3V
0 (1608/2125)
OSC1
4
4
VDD
C220
0.1u
2
GND
33.1776MHz
DG
3
( 2-3A)( 3-1A)( 4-4A)
( 7-3B)( 8-4H)(11-5H)
+1.9VD
Vcc-PLL
R454
0
2
CE11
22u/16V
R361
0
DG
VSS-PLL
+3.3V
+3.3VSHA
R300
0
1
C245
0.1u
R302
0
DG
SHADG
A
B
+3.3VSHA
(11-5E)
(11-5E)
(11-5E)
R299
(11-5E)
20K
(11-5E)
(11-5H)
D6
(11-5H)
(11-5E)
N.M.(MC2850)
(11-5H)
(11-5H)
(11-5H)
(11-5H)
(11-5E)
+3.3V
( 2-3A)
( 2-3A)
( 2-3A)
( 2-3A)
( 2-3A)
( 2-4A)
0
( 8-3H)
N.M.
(11-3I)
DG
(11-3I)
10K
1
OE
13
FBIN
R29
10
3
24
OUT
CLK
11
1G
14
2G
+3.3V
2
VCC
10
VCC
15
VCC
22
VCC
C222
C225
C224
C223
6
N.M.
GND
7
GND
18
GND
19
GND
DG
N.M.(CDC2509CPWR)
/RESET
+3.3V
IC16A
2
74LV14A
DG
( 4-2A)
TCS1
R261
RT1P141C
10K
DG
(4-4A)
TCS2
R258
N.M.
DG
/ICERESOUT
(11-3A)
MANRES
( 2-3A)
B
C
C274
C275
C276
DG
C277
C242
AUDATA0
AUDATA1
N.M.
AUDATA2
AUDATA3
/AUDSYNC
TDO
/ASEBRKAK
/ASEMD0
TDI
TCK
TMS
/TRST
AUDCK
/IRL0
/IRL1
/IRL2
/IRL3
/DREQ0
/DREQ1
R298
100
LCDVECNT
TXD
R293
+3.3V
4.7K
RXD
C241
N.M.
IC15
DG
12
FBOUT
R20
22
3
1Y0
R21
22
4
1Y1
5
1Y2
8
R22
N.M.
1Y3
9
1Y4
R28
22
21
2Y0
R30
22
20
2Y1
17
2Y2
16
R31
2Y3
R32
N.M.
23
R257
+3.3V
AVCC
C221
N.M.
1
AGND
DG
(11-3D)
+3.3V
C246
+3.3V
2200p
DG
IC16B
R262
1K
1
4
3
74LV14A
+3.3V
DG
R260
Q111
0
+3.3V
R259
Q110
N.M.
R304
4.7K
DG
C
6 – 1
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D
C219
C218
C217
DG
C235
N.M.
+3.3V
C244
N.M.
+3.3V
SHADG
N.M.
R359
R350
R358
4.7K
R354 4.7K
R333
4.7K
R353
4.7K
CKSPDR
( 3-1A)
+3.3V
CKCSMS
( 2-3A)
CKLCDC
( 7-3B)
CKSDRL
( 4-2D)
CKSDRU
( 4-5D)
(11-2D)
CKICE
DG
+3.3V
R296
10K
NMI
C243
N.M.
DG
+5V
C248
1u
IC17
5
1
VCC
M/R
2
SUB
4
3
VOUT
GND
PST596
DG
TP505
<RESOUT>
Vss-PLL
D
R303
+1.9VD
4.7K
R335
100
R336
0
R301
10K
R295
10K
TP2
R50
10K
R51
10K
TP3
TP1
SHADG
R292
0
TP5
R332
4.7K
R294
4.7K
R297
10K
+3.3V
C17
1u/6.3V
C21
1u/6.3V
C20
1u/6.3V
C25
1u/6.3V
C24
1u/6.3V
C22
1u/6.3V
C19
1u/6.3V
C238
1u
C11
1u/6.3V
+1.9VD
DG
C16
1u/6.3V
C23
1u/6.3V
C13
1u/6.3V
C10
1u/6.3V
Vcc-PLL
1u/6.3V
DG
C14
C236
470p
C15
1u/6.3V
TP15
+3.3VSHA
1u/6.3V
C12
SHADG
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