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UX-B800A
CHAPTER 6.
UX-B800A
CIRCUIT SCHEMATICS AND PARTS LAYOUT
[1] Control PWB circuit
1. Main Control Block (1a/10)
A
Main Control Block (1/2)
6
(5G)
HT_SCAN
R194
SPI_DOUT
(2-5A)
(2-5A)
5
4
+3.3V
3
R110
10k
ENVREG
R111
N.M.
DG
VCORE
L100
0 (1608)
1
2
C108
0.1u
2
(2D)
VCTRL
B
Q100
N.M. (2SA1955FV)
1
R112
R113
FG1
A
B
IC103
N.M.
2
3
CLR1
1QA
12
4
CLR2
1QB
5
1QC
N.M.
1
6
CK1
1QD
13
CK2
11
+3.3V
2QA
14
10
VCC
2QB
9
C164
2QC
N.M.
7
8
GND
2QD
DG
(2-6D)
SDRD[15:0]
SDRD0
SDRD1
SDRD2
SDRD3
SDRD4
SDRD5
SDRD6
SDRD7
SDRD15
SDRD14
SDRD13
SDRD12
SDRD11
SDRD10
SDRD9
SDRD8
(2-4H)
SDRUDQM
SDRLDQM
(2-4D)
(2-4H)
SDRCLK
(2-4H)
SDRCLKE
(2-4D)
SDRWE#
(2-4D)
SDRCAS#
(2-4D)
SDRRAS#
(2-4D)
SDRBA0
(2-4D)
SDRBA1
SDRA0
SDRA1
SDRA2
SDRA3
(2-4H)
SDRA12
SDRA11
SDRA10
SDRA9
SDRA8
SDRA7
SDRA6
SDRA5
SDRA4
SDRA[11:0]
(2-6D)
DG
C106
+3.3V
PLLVDD
VREGVDD
L101
0 (1608)
1
2
C109
0.1u
DG
DG
+3.3V
B
Q101
2SA2059
VCORE
C110
C137
10u (2012)
N.M.
0 (2012)
DG
0 (2012)
DG
B
Service Manual
C
BZ_TGL
(4-1A)
BR100
100x4
C100
0.1u
BR102
BR101
100x4
100x4
BR129
100x4
C101
0.1u
BR103
100x4
R180
100
C102
0.1u
BR128
BR116
100x4
100x4
C103
0.1u
BR104
100x4
SDRA12
R102
N.M.
C104
0.1u
BR106
BR105
100x4
100x4
7p
C105
TP103 R106
TP104
N.M.
VBAT
X2
R107
100K
32.768KHz
R103
C107
0
10u (2012)
7p
R104
<BAT RESET-1>
0
<BAT RESET-2>
DG
R191
0
RESET#
(2-1D)
VBAT
N.M. (short)
R109
C112
1u (1608)
DG
BR108
TP5
TP6
TP7
N.M. (short)
TP8
C111
BR107
N.M.
10k x4
DG
C
6 – 1
D
1/10
BR132
100x4
163
DQ [0]
164
DQ [1]
165
DQ [2]
166
DQ [3]
167
DQ [4]
168
DQ [5]
169
DQ [6]
170
VDD_O
171
VSS_O
172
DQ [7]
173
DQ [15]
174
DQ [14]
175
DQ [13]
176
DQ [12]
177
DQ [11]
178
DQ [10]
179
DQ [9]
180
VDD_O
181
VSS_O
182
DQ [8]
183
DQM[1]
184
DQM[0]
185
CLK
186
CKE
187
CX9331
WE#
188
CAS#
189
RAS#
FAX CONTRO
190
VDD_O
191
VSS_O
192
VSS
193
VDD
194
BA[0]
195
BA[1]
196
M_ADDR [0]
197
M_ADDR [1]
198
M_ADDR [2]
199
M_ADDR [3]
200
M_ADDR [12]
201
M_ADDR [11]
202
VDD_O
203
VSS_O
204
M_ADDR [10]
205
M_ADDR [9]
206
M_ADDR [8]
207
M_ADDR [7]
208
M_ADDR [6]
209
M_ADDR [5]
210
M_ADDR [4]
211
VDD_RTC
212
RTC_XIN
213
RTC_XOUT
214
CORE_PWR_DET
215
BATRST#
216
VSS_RTC
1M
R116
X1
R117
HC-49 (12MHz)
1.2K
2
1
R118
0
C114
C115
27p
27p
+3.3V
DG
R119
R120
N.M.
100k
TP106
DOWNLOAD_TX
(10-4E)
DOWNLOAD_RX
(10-4E)
R121
220
DG
TP108
D
IC100
DG
DG
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