AOC 55C2U-DVB, Service Manual

Page: 54 / 57

5
5
4
4
3
3
2
2
1
D D
C C
B B
A A
HD-AuRin
VGA-Bin
VGA-Rin
DDC_SDA_D
DDC_SCL_D
VGA-Rin
VGA-Gin
VGA-Bin
USB0_D-
USB1_D-
USB2_D-
HD-AuLin
HD-AuRin
VGA-Gin
LOUT-
MUTE
ROUT+
OUTNL
LOUT+
RIN_N
OUTPL
OUTPR
OUTNR
LIN_N
LIN_P
ROUT-
SD
RIN_P
E_AMP-R
E_AMP-L
SPDIFOUT
5V_USB2
5V_USB_WIFI
5V_USB1
+5V_Normal
5V_USB_WIFI
5V_USB2
5V_USB1
+12V_NORMAL
AMP_12V
AMP_12V
AMP_12V
AMP_12V
+3.3V_Standby
+5V_Normal
HD_RIN 4
HD_LIN 4
AV1_IN 4
VGA_VSYNC 4
VGA_HSYNC
4
UART_RX 4
UART_TX
4
VGA-Bin 4
VGA-Gin 4
VGA-Rin 4
4
USB0_D- 4
4
USB1_D- 4
WIFI_EN 4
4
USB2_D- 4
AMP-MUTE 4
EARPHONE-OUTL 4
EARPHONE-OUTR 4
AV_AUOUTL1 5
AV_AUOUTR1 5
SPDIF_OUT 5
YPBPR & AV IN
Keep A_GND trace with Signal.
Keep Spacing for L/R cahnnel.
Keep trace width(12mil+).
Close to Mstar IC
Video
USB INTERFACE
<2pF
USB POWER
0
AMP GAIN(db)
1
1
0
0 1
32
36 1
0
20
26
GAIN1(PIN6) GAIN0(PIN5)
This document for ShenZhen KTC Technology CO., Ltd and presented party internal use only,
Do not spread to third party without the written permission.
Copyright@ ShenZhen KTC Technology Co., LTD
L:ON
H:MUTE
AUDIO AMP
L:SHUTDOWN
AUDIO-OUT
Coaxial /OPTICAL OUT
R273
10K
R273
10K
C327
4.7nF
C327
4.7nF
D801
NC D801
NC
1
2
D825
NC
D825
NC 1
2
R268 10R R268 10R
D207
1N4148 D207
1N4148
L26
600R@100MHz
L26
600R@100MHz
C328
4.7nF
C328
4.7nF
R556 100R R556 100R
C201 1nF C201 1nF
D603
NC
D603
NC
1
2
L17
600R@100MHz
L17
600R@100MHz
C307
0.22uF
C307
0.22uF
L16 600R@100MHz L16 600R@100MHz
R409
12K
R409
12K
C306 0.22uF C306 0.22uF
CN10 PHONEJACK CN10 PHONEJACK
5
2
4
1
3
D824
NC
D824
NC 1
2
C332
0.22uF
C332
0.22uF
R508
10K R508
10K
R504 100R R504 100R
C158
1uF
C158
1uF
R263
47R
R263
47R
R408
12K
R408
12K
TPA3140D2
U203
TPA3140D2
U203
BSNR
21
GVDD
9
OUTNR
20
FAULT
2
PGND
24
LINN
4
SSCTRL
7
BSNL
22
RINN
11
BSPR
17
PGND
19
AVCC
14
SD
1
GAIN
6
LINP
3
LIMTHRES
8
OUTNL
23
RINP
12
PVC
C
16
PVC
C
15
OUTPR
18
PVC
C
27
1SPW
13
BSPL
26
LIMRATE
5
PVC
C
28
OUTPL
25
AGND
10
GND
29
C305 0.22uF C305 0.22uF
C618
0.1uF
C618
0.1uF
R285
10K R285
10K
ED8
NC/1pF
ED8
NC/1pF
R265
47R
R265
47R
D810
NC
D810
NC
1
2
R507
10K R507
10K
R21
0R/nc
R21
0R/nc
D819
NC
D819
NC 1
2
L1 FB/NC L1 FB/NC
R20 0R R20 0R
L213
0805_BEAD
L213
0805_BEAD
R266 33K R266 33K
R505 100R R505 100R
C196 330pF C196 330pF
R17 100R/NC R17 100R/NC
C1
0.1uF/nc
C1
0.1uF/nc
CN210 CN210
1
2
Q27
3904 Q27
3904
1
2
3
D605
NC
D605
NC
1
2
C331
100nF
C331
100nF
R280 10k R280 10k
R254
47R
R254
47R
C195 330pF C195 330pF
R292
4.7k R292
4.7k
C617
0.1uF C617
0.1uF
R270
100k
R270
100k
R282
100R R282
100R
L405 6V/1.1A L405 6V/1.1A
C330 0.47uF C330 0.47uF
Q209
3906
Q209
3906
1
2 3
R284
10R
R284
10R
D609
NC
D609
NC
1
2
R260
10R
R260
10R
C222
2.2uF
C222
2.2uF
C605
10uF
C605
10uF
R291 100K R291 100K
CN202
3Pin/2.0mm
CN202
3Pin/2.0mm
-
1
GND
2
+
3
R502
75R R502
75R
FB1 600R FB1 600R
L403 0R/0805 L403 0R/0805
C304
100uF/16V
C304
100uF/16V
R557
100R R557
100R
CN314
Coaxial
CN314
Coaxial
1
2
R264
47R
R264
47R
C604
10uF
C604
10uF
D809
NC
D809
NC
1
2
D607
NC
D607
NC
1
2
L11
600R@100MHz
L11
600R@100MHz
C197 1nF C197 1nF
CN307
AV1_IN
CN307
AV1_IN
C212 330pF C212 330pF
C211
1nF
C211
1nF
C208
1nF
C208
1nF
R407 10K R407 10K
L404 6V/1.1A L404 6V/1.1A
R503
75R R503
75R
C324
10uF/16V
C324
10uF/16V
R406 10K R406 10K
C213 330pF C213 330pF
C247
1uF/16V
C247
1uF/16V
C207
1nF
C207
1nF
R501
75R R501
75R
C619
0.1uF C619
0.1uF
C250 0.47uF C250 0.47uF
CN315 SPDIF/NC CN315 SPDIF/NC
VCC
2
GND
3
SPDIF
1
C2
2.2uF/nc
C2
2.2uF/nc
L207
0805_BEAD
L207
0805_BEAD
CON501
VGA
CON501
VGA
1
6
2
7
3
8
4
9
5
11
12
13
14
15
10
16
17
D606
NC
D606
NC
1
2 CN207
CON5-2.0mm
CN207
CON5-2.0mm
1
2
3
4
5
R405
75R R405
75R
D808
NC
D808
NC
1
2
C251
470uF/16V
C251
470uF/16V
R298 68K R298 68K
D804
NC
D804
NC 1
2
R262
10R
R262
10R
CN319 USB_4P CN319 USB_4P
D-
2
GND
4
D+
3
VCC
1
SHIELD
5
SHIELD
6
C249 0.47uF C249 0.47uF
CN318 USB_4P CN318 USB_4P
D-
2
GND
4
D+
3
VCC
1
SHIELD
5
SHIELD
6
D206 1N4148 D206 1N4148
R290
10R
R290
10R
R281 68K R281 68K
D811
NC
D811
NC
1
2
C221
2.2uF
C221
2.2uF
R283 33K R283 33K
C202 1nF C202 1nF
D803
NC
D803
NC 1
2
C325 0.47uF C325 0.47uF
FB2 600R FB2 600R
C603
10uF
C603
10uF
C248
100nF
C248
100nF
D608
NC
D608
NC
1
2
Power amplifier adjustment
USB ESD distributed capacity
53