Sharp FO-4650, Service Manual

Page: 19 / 80

FO-4650U
1 2 6
4
3
5
BD
E
F
G
I
H
C
A
BD
E
F
G
I
H
C
A
1 2
6
4 3 5
58 59 63 64 48 49 50 51
69 70 71 72 73 89 88 87
106
MD7 MD6 MD5 MD4 MD3 MD2 MD1 MD0
52 53 65 66 67 68 74
MD11 MD10 MD9 MD8 MD15 MD14 MD13 MD12
14
1 2
7
+5V
R428
0
/MRD
IC38A
N.M.
14
4 5
7
+5V
R426
150
/MWRH
IC38B
N.M.
14
12 13
7
+5V
R427
0
/MWRL
IC38D
N.M.
/CS6
R428 100P
R243
0
85 86 78 77
DG
3
6
DG
11
DG
DG
TP7
/CS2 /CS6 /INT4 /INT7
C198
2200P
C186
C152
N.M.
R236
0
14
9
10
7
IC38C
N.M.
60
143
76
144
+5V
DG
DG
8
C421
CLKF CK16M /RESET2
DG
DG
XRD XWRH XWRL XWR XCS2 XCS6 XINT4 XINT7 SHCK TEST
156 157 112 113 90 93 92 80 79 91
CK16M XRESET
XEXINT1 XEXINT0
FLSZ0 FLSZ1
XDREQ0
XDACK0
XDREQ1
XDACK1
XRAS
XWAIT
39 54 55 56 57
96 102 98 97 99 118 117 116 119 125 124 123 121 159
MA8 MA7 MA6 MA5 MA4
MD[15:0]
MA3 MA2 MA1 MA13
/PCINT
R406
10K
R405
R248
10K
R233
10K
R181
10K
R188
10K
158 122
R225
270
R224
270
C183
1000P
114 115
TP46
TP47 TP48
TP49
TP TP TP TP
TP51
+5V
DG
DG
+5V
N.M.
N.M.
C146
/ROMCS
/FLOPT
A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
XPGMCS
XEXCS
XFLSTD XFLOPT
XMDMCS
XMDMINT
XMDMRST
XEXHS
XRHS
XCI
HSDTCT
DPON
TELMUTE2
MPXB MPXC
TXMUTE
IOP1 IOP0
84 83 82 81 35 36 37 38
111 107 108 109 110 94 95
MA21 MA20 MA19 MA18 MA12 MA11 MA10 MA9
MA[21:0]
TP40
TP41
TP42
TP43 TP44 TP45
FLBK4 FLBK2 FLBK1
/GABCS
/SRAMCS
IC17A
LZ9FJ59
GATE ARRAY (A)
A21 A20 A19 A18 A12 A11 A10 A9
XFLBSY
FLBK4 FLBK3 FLBK2 FLBK1
XGABCS
XSRAMCS
C185
IC40A
N.M.
N.M.
N.M.
R409 10K
R250 4.7K
R246 10K
R247 10K
R222 10K
IC40B
N.M.
5 3
1
DG
+5V
C423
N.M.
NC
VCC GND
/FLBSY
R234
C422
R249
10K
DG
+5V
R429
0
DG
42
+5V
C197
2200P
DG
/MDMCS
/MDMINT
/MDMRST
/EXHS
/CI
VOLB
VOLC
CDCMSK
R239
10K
R240
10K
/DREQ0
/DACK0
/DREQ1
/DACK1
/MRAS
/WAIT
(1-6H)
(1-6H)
(1-2D) (1-1D) (1-2D) (1-2D)
(1-2D) (1-2D) (1-5A) (1-5A) (1-4A) (9-4D) (1-4A)
(1-5A) (1-6A) (1-5A) (1-5A) (1-2D) (1-2D)
(15-3F)
(4-2H) (4-2H) (9-2F) (14-4C) (3-3B) (3-3B) (3-2B) (14-3C)
(15-2D) (1-4H) (2-3F) (8-6E) (15-2B) (15-2D) (15-2B)
(15-4D)
Gate array (A) block 1
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