Schematic; Main Board - AOC L42H861 Service Manual

42"LCD TV
9. Schematic Diagram

9.1 Main Board

5VT
FB234
TU201
TUNER
1 2
1 600 OHM
BB
2 C2B5
NC
3
NC
4 0.1uF/16V
NC
5
SIF
6
NC
7 FB235
AGC
8 C239
Video out
9 1 2
VB
10 600 OHM NC/47pF
NC
11 C2B6
BT monitor
12
NC
13 0.1uF/16V
NC
14
SDA
15
SCL
16
AFT-OUT
17 FB236 1 2
+B
18 600 OHM
IF-Monitor
19
IF-AGC
20 IF_AN
IFD1
21 IF_AP
IFD2
C2B7 C203
ZD239
0.1uF/16V 0.001uF
TU_GND VPORT0603100KV05
TU_GND
5VT
21
20
C214
19
18 0.001uF
17
16
15
14
13
12 ENG36E21KF
11
10
9
8
7
6
5
4
3
2
1
I2C ADDRESS Write mode Read mode
#C2h #C3h
5V :
BB=15mA(MAX)
+B=140mA(MAX)
VB=70mA(MAX)
SIF_IN
D3V3
TUNER_CVBS
ZD237 ZD238
R204 R205
VPORT0603100KV05
VPORT0603100KV05 10K OHM 1/10W
10K OHM 1/10W
R207
R206
IF_AGC
C205 C206
ZD240 ZD241 ZD242 ZD243
22pF 22pF
VPORT0603100KV05 VPORT0603100KV05
VPORT0603100KV05 VPORT0603100KV05
C215 + C213 5VT
FB202
0.1uF/16V NC/220uF/25V
1 2
120 OHM
R212
15K OHM 1/10W
TUNER_CVBS C238 47uF/16V
R214
15K OHM 1/10W
R218 NC/33 OHM 1/10W
SIF_IN
100 OHM 1/10W I2C1_SDA
I2C1_SDA 8
100 OHM 1/10W I2C1_SCL
I2C1_SCL 8
L201
C217 0.001uF
0.22uH
L203
C223 0.001uF
0.22uH
Place parts very close to U401
R213 C236
22 OHM 1/10W 0.1uF/16V
Q201
2SC2412KR
R215 75 OHM 1/10W TV_CVBS
TV_CVBS 4
R216
1K OHM 1/10W
絬 隔 瓜 絪 腹
Key Component
38
C201 0.1uF/16V R201 47 OHM 1/10W
C202
C204
47pF C207
3V3A C208
FB203
1 2
600 OHM
C209 C210
R202
0.1UF16V 4.7uF/10V C211
0402
C212
C219
L202 C220
NC/10pF R203
82pF C221
0.15uH C222
C225
C228 C226
NC/10pF 3V3A
FB206
1 2
600 OHM
C230
0.1UF16V
TP1 0402
3V3A
FAIL
GPIO0 R208
9 GPIO0
R210
1
TP32
IF_AGC R211
C233
0.1UF16V
3V3A 0402
FB207 1 2 120 OHM
T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL X
T2830-D-2-X-1-080211 TPV MODEL X
PCB NAME 715T2830
03-Tuner
Monday , March 03, 2008 Sheet 3 of 18
Date
AOC L42H861
U401P
Demodulator
SIF_N AF5
SIF_AINN
0.1UF16V 0402 SIF_P AE5
SIF_AINP
0.1UF16V 0402 AE4
SIF_VREFN
0.1UF16V 0402 AF4
SIF_VREFP
AF6
SIF_VDD3P3_0
AE6
SIF_VDD3P3_1
5.1K OHM 1/10W AD6
SIF_RBIAS
0.1UF16V 0402 AD5
SIF_VINBIAS
0402
0.1UF16V AD4
SIF_VCM
IF_AINN AF2
IF_AINN
IF_AINP AE2
IF_AINP
5.1K OHM 1/10W AD3
IF_RBIAS
0.1UF16V 0402 AD2
IF_VINBIAS
0.1UF16V 0402 AD1
IF_VCM
0402
0.1UF16V AF1
IF_VREFN
0402
0.1UF16V AE1
IF_VREFP
AC1
IF_VDD3P3_0
AC2
IF_VDD3P3_1
C231
4.7uF/10V
1 AD10
TP2
DEMOD_CLKO
AF11
MPEG_FAIL
0 OHM 1/10W AD9
DMOD_RSTn
TP3 1 AC6
SA_DATA
4.7K OHM 1/10W AE9
PARAM[0]
RF_AGC AF8
RF_AGC
2K OHM 1/10W AF7
IF_AGC
AC10
DM_PLL_VDD
ZR39780BGCG
C234 C235
0.1UF16V 1uF/16V
0402
U401D
Transport I/F
AB14
TPDATA7
AD14
TPDATA6
AB13
TPDATA5
AC13
TPDATA4
AD13
TPDATA3
AD12
TPDATA2
AC12
TPDATA1
AB12
TPDATA0
AC14
TPVALID
AC15
TPFRAME
AB15
TPCLK
ZR39780BGCG
Custom
Size
Rev
B
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