AOC L22W631 Service Manual page 38

22’’ lcd tv
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22'' LCD TV
+5V_SW
R273
100Ω
R272
1.2KΩ
IF_OUT
L201
R274
10KΩ
0.56uH
D201
BA792
R277
47KΩ
R275
Q203
R276
PMBS3904
C305
R271 1.2KΩ
SAW_SW
Q202
0.1UF
PMBS3904
C303
+
R270
C306
10uF/16V
0.1UF
1.2KΩ
TUNGND
+5V_SW1
TP113
CN115
1
R200 100Ω
2
TX
3
RX
4
R201 100Ω
C202 0.1UF
+1.8V_1
CN CONN
+3.3Vstb
C205 0.1UF
REF
Follow LOC1
C208
NC
REF
C355
C209
0.1UF
NC
FB220
300
OHM1
13
DECDIG
C210
100uF/16V
C217 0.1UF
DIG1
2.2uF/16V
DIG1
C218 0.1UF
FB204
300 OHM
REF
1
2
+5V_SW1
2
Vdrb
GND1
GND1
REF
+5V_SW
R285 1KΩ
IFVO
Q204
PMBS3904
L202
6.8uH
100Ω
R280
U205
R284
150Ω
1
3
EMI FILTER
C304
TUNGND
IFVO1
FOR NTSC
0.1UF
U203
VF45A3D
1
INPUT
2
SWITCHING INPUT
3
CHIP CARRIER -GROUND
4
+1.8V_1
+1.8V_1
OUTPUT
5
OUTPUT
VIFIN2
VIFIN1
U204
AF45A3D
1
INPUT
2
DIG2
SWITCHING INPUT
3
CHIP CARRIER-GROUND
4
OUTPUT
5
OUTPUT
R278
DIG1
R269
SIFIN2
SIFIN1
DIG1
TUNGND
DIG1
1
VSSP2
FB201
300 OHM
2
VSSC4
C201 0.22uF
1
2
3
VDDC4
4
VDDA3(3.3V)
FB203
5
VREF_POS_LSL
300
OHM1
2
6
VREF_NEG_LSL+LSR
C206
100uF/16V
7
VREF_POS_LSR+HPL
8
VREF_NEG_HPL+HPR
C207 0.1UF
9
VREF_POS_HPR
10
XTALIN
X201
11
24.576MHz
XTALOUT
12
VSSA1
C367 0.22uF
13
VGUARD/SWIO
DIG1
2
14
DECDIG
15
VP1
16
PH2LF
12KΩ 1/10W
C211 0.0068uF
17
PH1LF
C212
R202
18
GND1
C213 0.22uF
19
SECPLL
10uF/16V
C214
20
DECBG
C216 0.1UF
R203 47KΩ 1/10W
21
10Ω 1/10W
AVL/EWD
R205
R204
10K
22
VDRB
23
VDRA
24
VIFIN1
VIFIN1
25
VIFIN2
VIFIN2
R207 1MΩ 1/10W
C219 0.33uF/16V
26
VSC
R208 39KΩ 1/10W
27
IREF
FB205
300 OHM
1
2
GNDIF
28
GNDIF
29
SIFIN1
DVBIN1/SIFIN1
30
SIFIN2
DVBIN2/SIFIN2
R209 680Ω 1/10W
AGC
31
AGCOUT
C220
0.01uF
R210 100KΩ 1/10W
32
EHTO
GND1
+
Q205
PMBS3904
GND4
GND4
GND2
100Ω
R282
R279
1.5KΩ
C307
R281
100Ω
100pF
GND4
GND4
R283
100Ω
TUNGND
+1.8V_1
REF
+3.3Vstb
REF
TP102
UOC3_SDA
TP101
UOC3_SCL
I2S0
SCK
5
WS
5
5
WP1
DIG2
IR
4
+3.3Vstb
R255
NC 0Ω 1/10W
DIG1
TP112
96
VDDadc(1.8)
95
VSSadc
94
VDDA2(3.3V)
93
VDDA(1.8V)
92
GNDA
91
VREFAD
90
VREFAD_POS
89
VREFAD_NEG
88
VDDA1(3.3V)
87
BO
86
GO
UOCIII
85
RO
84
BLKIN
83
BCLIN
82
VP3
81
GND3
80
B/PbIN3
79
G/Y IN3
U201
78
R/PrIN3
77
INSSW3
76
VOUT(SWO1)
75
UOUT(INSW-2)
74
Y OUT
73
Y SY NC
72
Y IN(G/Y -2/CVBS/Y -X)
71
UIN(B/Pb-2)
70
VIN(R/Pr-2/C-X)
69
VDDcomb
68
VSScomb
67
HOUT
66
FBISO/CSY
65
SVM
+
GND2
GND4
GND2
REF
+12V_SW
GND2
GND2
GND2
REF
GND2
+8V_SW
+5V_SW1
38
FB215
NC 300 OHM
1
2
+5V
FB214
300
OHM1
2
+3.3Vstb
C288
REF
0.22uF
M24C16
R250 0Ω 1/10W
5
4
SDA
VSS
R251 0Ω 1/10W
6
3
DIG5
DIG4
DIG3
DIG2
SCL
NC
R262 0Ω 1/10W
7
2
WC
NC
8
1
VCC
NC
u202
DIG1
GND5
GND4
GND2
GND2
GND1
+1.8V_2
+3.3Vstb
FB213
300
OHM1
2
C286 0.22uF
C287
0.1UF
DIG3
C285
100uF/16V
FB212
300
OHM1
2
C284
0.1UF
FB211
C283
0.1UF
300
OHM1
2
C281 0.22uF
C282
0.1UF
C280
0.1UF
C279
100uF/16V
FB210 300 OHM
DIG4
1
2
C277 0.22uF
C278
0.1UF
DIG5
C275 0.22uF
FB209 300 OHM
1
2
C274
100uF/16V
C276
0.1UF
DIG1
100Ω 1/10W
R242
BOUT
8
C273 47pF
100Ω 1/10W
R241
GOUT
8
C272 47pF
R240
100Ω 1/10W
REF
ROUT
8
C266 47pF
C271
1000pF
C270
10uF/16V
FB208 300 OHM
REF
C268
470uF/16V
1
2
+5V_SW1
C267
0.1UF
C269
0.1UF
NC 100Ω 1/10W
C265
NC 0.1UF
R239
PB_CB
8,11
C264
NC 0.1UF
R238
NC 100Ω 1/10W
GND5
HD_Y
8,11
NC 100Ω 1/10W
C263
NC 0.1UF
R237
PR_CR
8,11
100Ω 1/10W
R236
FBLIN
11
C262
0.1UF
C260
0.1UF
FB207
1
2
300 OHM
+5V_SW1
C259
100uF/16V
C261
0.1UF
Hout
2
4.7KΩ
R235
+5V_SW1
27KΩ 1/10W
R234
+5V_SW
GND5
+
C299
C301
10uF/16V
0.1UF
TUNGND
R333
R334
NC 75Ω 1/10W
NC 75Ω 1/10W
R335
NC 10KΩ 1/10W
C370
+
C371
+
C372
C373
R336
NC 0.01uF
NC 47UF/16V
NC 47UF/16V
R337
NC 2.2KΩ 1/10W
NC 390Ω 1/10W
NC 0.01uF
TUNGND
R342
C368
0Ω 1/10W
IF
R339
Q302
0Ω 1/10W
NC PMS3904
0.01uF
R340
L203
R338
NC 2.2K OHM
R341
0.56uH
100Ω 1/10W
NC 30Ω 1/10W
C369
NC 0.01uF
TUNGND
TUNGND
AOC L22W631
DIG1
TUNGND
Tuner Board
CONN
UOC3_SCL
12
11
UOC3_SDA
AGC
10
9
8
7
6
5
IF
4
3
2
1
CN105
TUNGND
L204
NC 1.2uH
IF_OUT
Title
05. UOCIII
Size
Document Number
Rev
A2
0.5
T2448-1-X-X-5-070321
Date:
Wednesday , March 21, 2007
Sheet
6
of
13

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