![background image](http://html.mh-extra.com/html/samsung/sch-8500/sch-8500_service-manual_1189785040.webp)
9-2
Samsung Electronics
9-2 Logic Circuit Diagram (2)
Microchip ==> open
ATMEL ==> 10K
Power
MIC
FIXING HOLE
EEPROM
Codec
<< R199 >>
SCH-8500(DBTM) Rev10C
1
3
4
5
R183
100K
19
D105
SMF05.TB
2
6
7
_ERROR
8
_SHDN
VAA_L
VAA
U153
1
BYPASS
DELAY
2
3
GND
4
IN
OUT
5
SENSE
D107
SMF05.TB
2
1
3
4
5
LP2988AIMMX-3.0
C299
1NF
END/PWR
1
2
1UF
C159
R191
10K
H101
C285
15PF
10K
10K
R193
2SC4081BRT106
1
3
2
R194
Q151
100NF
C259
C282
7
15PF
VDD
100K
15PF
C179
2
R160
R2
VINR1
4
VON/OFF
5
FDC6329L
U156
C1
2
C2
3
6
R1C1
1
C157
4.7UF
U158
TC7S04FU(TE85L)
GND
3
IN
2
1NC
OUT
4
5
VCC
2K
C158
R259
10
10NF
680PF
C255
560PF
C184
LED107
LED106
1
2
NC
R139
560PF
C187
560PF
C186
7
1
2
6.3V
4.7UF
C152
35
10NF
C263
32
6.2K
R261
1.8NF
C271
SMF05.TB
D106
2
1
3
4
5
LED103
2.2UF
C252
6.3V
40
10K
R250
17
1NF
C175
2
6.3V
4.7UF
C162
8
100NF
C256
6
5
1
2
3
1
2
1
2
MENU
15
2.2K
R159
C254
100NF
Q150
DTC114EE/TR
2
3
1
21
22
13
J401-1
MQ179B-SAA-18P/4
1
1NF
C180
15PF
VDD
C283
15K
560PF
C185
R147
R157
200K
14
4.7UF
C161
27
#
1
2
1.8NF
C270
1.8NF
C272
H103
6.3V
2.2UF
C153
AXK6S40535P
CN401-1
1
HSJ1621-019010
J200
1
2
3
4
5
TC75W56FU-TE12L
4
3
2
8
1
20
U251-1
100NF
C267
4
R180
1K
21
C289
9
1
2
15PF
U159
ILC7082AIM5-30
BYP
4
2
GND
ON/OFF
3
VIN
1
5
VOUT
2
8
10K
R187
17
19
100K
R151
1
2
1K
36
*
3
R252
56K
18
25
R181
4
5
VON/OFF
3
1
2
U157
FDC6329L
2
C1
3
C2
R1C1
6
R2
1
4
VINR1
10
9
1
2
C251
470NF
CL-190YG-CD-T
LED100
1
2
26
OK
11
16
24
C168
1UF
15PF
C284
11
5
VDD
30
150K
R253
29
8
1
2
C273
100NF
30
R266
LED105
NC
R146
16
18
15
14
10NF
6
C167
1
2
4
15PF
6
2.2K
R152
C295
2.2K
R190
C160
4.7UF
19
7
LED102
6
H100
5
LED101
15PF
C293
22
R153
2.2K
12
R154
14
1
3
2
100K
Q152
DTC144EE/TR
18
VCC
41
VCCA
VCCP
42
3
VFR+
2
VFR-
6
VLR+
5
VLR-
4
NC2
7
NC3
9
NC4
11
NC5
12
NC6
NC7
13
22
NC8
23
NC9
28
NC11
29
NC12
NC13
32
NC14
35
39
NC15
NC16
40
NC17
43
44
NC18
34
MIC1+
33
MIC1-
MIC2+
31
MIC2-
30
38
MIC3+
MIC3-
37
1
NC1
NC10
27
10
DR
DX
20
FS
24
GND
21
GNDA
36
8
GNDP
26
LO
MCLK
25
17
BZ
CCLK
14
CI
16
CO
19
15
CS-
31
33
U250
ST5092TQFPTR
23
R184
100K
15PF
C292
1
2
TALK
1
2
CLR
1NF
C178
100K
R155
12
15PF
C291
20
13
VDD
5
VCC 8
R255
18K
U105
M24256-WMN6T
6
SCL
SDA
10NF
C253
VON/OFF
L212
BLM11A102SPT
U151
FDC6329L
2
C1
3
C2
R1C1
6
R2
1
4
VINR1
5
4
1
2
DTA144EE/TR
2
3
1
2.2K
R192
28
Q153
6.3V
2.2UF
C264
1
VAA
CN400-1
IL-FPR-22S-HF-E3000
1
1
2
U251-2
TC75W56FU-TE12L
5
6
7
CN201-1
1
20
R258
100NF
C258
33UF
C150
6.3V
VAA
22
R171 (N.C)
R158
56K
17
680
DTC144EE/TR
Q154 (N.C)
1
3
2
VAA
R182
56K
1UF
C156
2
D109
SMF05.TB
2
13
4
R186
1
1NF
C177
56K
1NF
VDD
C176
C166
VDD
C290
15PF
24K
10NF
33UF
6.3V
C257
R257
15PF
5
C288
13
4
SMF05.TB
D108
2
20
100NF
C301
R165
10K
7
18
5
VOUT
8
ILC7082AIM5-30
BYP
4
GND
2
ON/OFF
3
VIN
1
13
U155
NC
R163
C260
22NF
1
2
15
100K
R162
CN201-2
2
21
12
C287
15PF
R156
100K
C174
1NF
39
NC
C266
100NF
37
R185
1NF
34
C151
9
1K
R148
3
VIN
1
5
VOUT
R254
20K
U154
ILC7082AIM5-30
BYP
4
2
GND
ON/OFF
R251
VAA
6
3
2.2K
D1
1
8
D2
G1
4
G2
5
2 S1_1
S1_2
3
7
S2_1
S2_2
2
SI6943DQ
U150
R161
10K
10K
11
R249
9
R256
120K
10
16
15PF
C286
C269
100NF
0
1
2
56K
R150
H102
LED104
R1C1
1
R2
VINR1
4
VON/OFF
5
38
FDC6329L
U160
C1
2
C2
3
6
PS_HOLD
C155
100NF
SCL
WP_E
SDA
SCL
TCXO_CON
CELL_CON
PCS_BAND
PAMP_ONP
C-F
MIC
SCAN(0)
KEY(3)
SCAN(0)
KEY(3)
LCD_CS
RESOUT
A(1)
SPK+
SPK-E
MOTOR_
SPK-E
C-F
V-F
CELL_CON
PCS_BAND
CELL_BAND
PDM2
VRR
VRR_S
SLEEP-
SPK-
SPK+
SCAN(2)
SCAN(1)
TCXO_VAA
VRR_PCS
VAA
SDA
TCXO_VAA
MODE_SEL
VRR_S
VRR_CELL
CELL_BAND
SLEEP-
PCS_BAND
GND
GND
PA_ON
GND
GND
PDM1
LNA_GAIN_CTL
TRK_LO_ADJ
MODE_SEL
GND
PLL_EN
PLL_DATA
PLL_CLOCK
19.68MHZ
GND
VRR_PCS
VRR_CELL
VRR_S
VTT
CDMA_IF
CDMA_IF-
FM_IF
GND
GND
RX_IFVCO_OUT
GND
RX_IFVCO_VT
GND
GND
VTT
GND
TX_IF
PA_R0
TX_IF-
T3.6
T3.6
AD(1)
AD(0)
LED_ON
VBAT
VRR_S
PCS_BAND
IDLE-
SLEEP-
VRR
RESOUT
A(1)
GND
AD(7)
GND
VDD
VDD
SPK+
SPK-
MOTOR_
EL_EN
GND
GND
GND
AD(6)
AD(5)
AD(4)
AD(3)
AD(2)
CTS
DTR
VBAT
KEY(0)
KEY(1)
SCAN(1)
KEY(2)
SCAN(2)
ON_SW
VBAT
SCAN(3)
SCAN(4)
SCAN(5)
SCAN(6)
LCD_CS
PCM_DOUT
RX_AUDIO
RX_AUDIO
C-F
TX_AUDIO
DP_RX_DATA
DP_TX_DATA
HP_PWR
RI
CD
V-F
RTS
-EAR_DET
BUZZER
CCLK
CI
CODEC_CS
PCM_DIN
PCM_SYNC
PCM_CLK
TX_AUDIO
ON_SW
ON_SW_SENSE
HP_PWR
VBAT
S3.6
T3.6
PAMP_ONP
VDD
-RESET
-SEND_END
VAA
TCXO_CON
Summary of Contents for SCH-8500
Page 2: ...Samsung Electronics Co Ltd Dec 99 Pinted in Korea Code No GH68 00949A ELECTRONICS ...
Page 20: ...5 Exploded View its Parts List 5 1 Main Set Exploded View Samsung Electronics 5 1 ...
Page 36: ...Samsung Electronics 8 1 8 PCB Diagram 8 1 Logic Top View ...
Page 37: ...Samsung Electronics 8 2 8 2 Logic Bottom View ...