Chapter 6. Circuit Schematics And Parts Layout; Control Pwb Circuit - Sharp FO-DC635U Service Manual

FO-DC635U
CHAPTER 6.
FO-DC635U
CIRCUIT SCHEMATICS AND PARTS LAYOUT

[1] Control PWB circuit

1. Main Control PWB Circuit CPU Block (1a/12)
A
Main Control PWB Circuit CPU Block (1/2)
6
SHADG
LCDTH
( 9-2E)
5
MEMDTCT0
(12-5E)
MEMDTCT1
(12-5E)
PCLDTCT
(10-3I)
NICDTCT
(10-6E)
+3.3V
4
C220
0.1u
3
+1.9VD
2
D G
+3.3V
1
D G
A
B
+3.3VSHA
(11-5E)
(11-5E)
(11-5E)
R299
(11-5E)
20K
(11-5E)
(11-5H)
D 6 (11-5H)
(11-5E)
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)
N.M.
R291
( 8-3H)
(11-3I)
D G
(11-3I)
R256 10K
OSC1
4 1
VDD OE
13
R29 10
2 3 24
GND OUT
33.1776MHz
11
14
D G
+3.3V
10
15
22
C222 C224
C225
C223
18
19
D G
( 2-3A)( 3-1A)( 4-4A) /RESET
( 7-3B)( 8-4H)(11-5H)
Vcc-PLL
IC16A
CE11 74LV14A
22u/16V
( 4-2A)
TCS1
VSS-PLL
R261
10K
(4-4A)
TCS2
+3.3VSHA
R258
N.M.
C245
0.1u /ICERESOUT
(11-3A)
MANRES
( 2-3A)
SHADG
B
Service Manual
C
C274
C275
C276
DG C277
C242
AUDATA0
AUDATA1
AUDATA2
AUDATA3
/ A U D S YNC
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
D G
12
FBIN FBOUT
R20 10
3
CLK 1Y0
R21 10
4
1Y1
R22 10
5
1G 1Y2
8
2G 1Y3
9
1Y4
R28 10
2 21
VCC 2Y0
R30 10
20
VCC 2Y1
17
VCC 2Y2
R31
16
VCC 2Y3
R32
23
+3.3V
AVCC
6
R257
GND
7
GND C221
GND
1
GND AGND
D G
(11-3D)
N.M.
+3.3V
+3.3V C246 +3.3V
2200p
IC16B
D G
74LV14A
2 1 4 3
+3.3V
D G D G
Q111
RT1P141C
+3.3V
D G Q110
R259
N.M.
D G
R304
4.7K
D G
C
6 – 1
D
1/12
C219
C218
C217 D G
+1.9VD
C235
N.M.
+3.3V
R51
10K
C244
0.1u
+3.3V
SHADG
R358
R359
4.7K
R350
R354 4.7K
R333 4.7K
4.7K
R353
CKSPDR ( 3-1A)
+3.3V
CKCSMS ( 2-3A)
CKLCDC ( 7-3B)
CKSDRL
( 4-2D)
CKSDRU ( 4-5D)
(11-2D)
C KICE
D G
+3.3V
R296
10K
NMI
C243
N.M.
D G
+5V
C248 1u
R262
1K D G
5 1
VCC M/R
2
SUB
4 3
VOUT GND
IC17
PST596 D G
D G
TP505
<RESOUT>
Vss-PLL
SHADG
D
R335
R301
R295
R50
10K
SHADG
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
C16
1u/6.3V
C23
1u/6.3V
C13
1u/6.3V
C10
1u/6.3V
C14
1u/6.3V
C236
470p
C15
1u/6.3V
C12
1u/6.3V