Samsung SGH-A500 Service Manual page 27

15. Memory & Connector Circuit Diagram
1
A
A(1:20 )
B
V3V
A(21 )
FLASH_SEL
SRAM_SE L
BHE Q
A(0)
C
R313
RESETQ
C389
F-RY_BY
10N F
RDQ
W R Q
D
VBA T
E
CN301
1
1
2
2
3
3
4
4
C325 C303 ZD301
100N F
27PF
F
SYSTEM_CONNECTOR
1
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2 3
V3V
C301
1U F
FLASH_WR
U302
C6 S-A17 D10
F-VCC
E4
E-VPP
E5 F-A19 D9
A(20)
S-VCC
D(0:15 )
G 3
F-A18
A(19)
G 4 F-A17 B7
A(18) D Q 1 5 D(15)
B9
D Q 1 4 D(14)
C7
D(13)
D Q 1 3
B3 A1 6 D Q 1 2 D7
A(17) D(12)
A5 A1 5 E6
A(16) D Q 1 1 D(11)
A6 A1 4 E8
A(15) D Q 1 0 D(10)
A7 A1 3 F 7
A(14) D(9)
D Q 9
A8 F 8
A1 2
A(13) D(8)
D Q 8
A4 A1 1 B10
A(12) D Q 7 D(7)
B5 A1 0 C8
A(11) D(6)
D Q 6
B6 A9 C1 0
A(10) D Q 5 D(5)
B4 A8 C9
A(9) D Q 4 D(4)
G 5 A7 E10
A(8) D Q 3 D(3)
G 6 A6 D Q 2 E9
A(7) D(2)
H4 A5 F10
A(6) D(1)
D Q 1
H5 A4 F 9
A(5) D Q 0 D(0)
G 7 A3
A(4)
G 8 D5
A2
A(3) T 1
G 9 A1 D6
A(2)
T 2
H6 E7
A0
A(1) T 3
C5
NC A(22 )
A3 F-A20 A1
NC
H7 _F-C E A2
NC
D8 S-CE2 H1
NC
G 1 0 _S-CE1 H2
NC
H3
NC
F 4 _S-U B F 6
NC
F 3 _S-LB A1 0
NC
A1 1
NC
E3 _F-W P A1 2
NC
D4 _F-RST H1 0
0
NC
C4 _F-RY/B Y H1 1
NC
H1 2
NC
F 5 _S-O E
H9 _F-O E D3
GND
B8 _S-W E A9
GND
C3 H8
_F-W E GND
MEMOR Y
VBA T
CN303
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
20 20
9
9
19 10
19
10
11
11
12
12
13
13
14
14
15 15
16
BP_V F 16
17 17
18
18
2 3
SAMSUNG Proprietary-Contents may change without notice
4 5
25 24 23 22 21 20 19 18 17
26 D1 SPVS S 16
D(1)
27 15
D(0) D0 SPVDD
28 14
R308
WRQ /W R EQ 3
29 13
POLY_EN SDIN EQ 2
U30 3
30 SYNC EQ 1 12 C311
A(1)
31 11
RDQ SCLK HPOUT-R
32 10
SDOUT HPOUT-L/MONO
1 2 3 4 5 6 7 8 9
C315
R312
100NF
0
V3V
C316
1NF
C317
100N F
R301 1K
TXD0
R302 1K
RXD0
R303 1K
RXD1
R306 1K TXD1
AUTO_PWR
R304 1K
CTS
R307 1K
RTS
RESETQ
DATA_DE T
TA+
VINT
4 3
5 2
1
6
ZD50 3
Changed by
user10
4 5
6-13
SGH-A500 Flow Chart of Troubleshooting and Circuit Diagrams
6 7
VBA T
150K
C309 C310
10U F
C312 R309 100N F
10V
330PF 27K
33NF
R310 R330
27K 56K
C313
330N F C330
4.7N F
EPN2
EPP2
ZD304
B1
A1
A2 B2
B3
A3
C304
27pF
VBA T
CN302
9 1
9 1
10 2
10 2
11 3
V3V
LED_CTL 11 3
12 4
MOTOR_EN 12 4
13 5
EPN1 13 5
14 6
14 6
C318 15 15 7
7
22PF
16 8
16 8
EPP 1
R340
C319 C320
20 K
27PF 27p F C321
27PF
LCD CONNECTOR
Engineer
KIM. H. K
Drawn by
KIM. H. K
R&D CH K
TITLE :
DOC CTRL CH K
SGH-A500_REV1.9B
MFG ENGR CH K
Date Changed Time Changed QA CH K REV
2002 - 09 - 30
1.9B
1:50:57 pm
6 7
8
A
B
C
DISP_RST
DISP_R S
DISP_SCL K
DISP_SID
C305 C306 C307
D
27pF
27pF 27p F
C304-307,C320 0603
DISP_C S
E
C322
100PF
COMPANY NAME
Address
F
City
Size
A3
Drawing Numbe r
Shee t 3 of 6
8