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5
PQ112
PQ112
5V
+5V_Standby
ME2325
ME2325
2
PC165
PC165
SOT23
PR228
PR228
0.22uf
0.22uf
10K
10K
PR227
PR227
100K
100K
D
TO MASTER CHIP
PR198
PR198
4.7K
4.7K
PQ103
PQ103
5
PWR_ON/OFF
MMBT3904
MMBT3904
+12V
Q4
Q4
12V
ME2325
ME2325
2
C7
C7
SOT23
0.22uf
0.22uf
R64
R64
+3.3V_Standby
10K
10K
R85
R85
100K
100K
R31
R31
4.7K
4.7K
TO MASTER CHIP
R62
R62
H:ON
L:OFF
4.7K
4.7K
Q7
Q7
5
PWR_ON/OFF
MMBT3904
MMBT3904
C
1.15V Core Power
DC/DC
+5V_Normal
U12
U12
2
5
IN
BST
DCDC_EN2
R2
R2
100K
100K
6
EN/SYNC
3
SW
7
VCC
DCDC_FB2
1
8
R3
R3
AAM
FB
C17
C17
C22
C22
90.9K
90.9K
MP9495DJ
MP9495DJ
C20
C20
C13
C13
C14
C14
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
10uF
10uF
10uF
10uF
R4
R4
10K
10K
靠近DC-DC
Vout=0.8V*(1+R1/R2)
B
H12
H12
H11
H11
H21
H21
5
9
5
9
5
9
4
8
4
8
4
8
3
7
3
7
3
7
2
6
2
6
2
6
NC
NC
NC
NC
NC
NC
H26
H26
H25
H25
H24
H24
H23
H23
H20
H20
H29
H29
H17
H17
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
Test Point & MARK
A
本文档仅限中国深圳市康冠技术有限公司和被呈送方内部使用，未经书面许可请勿扩散到第三方。
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
5
4
DC/DC
12V TO 5V Power
+5V_Normal
3
+12V
CA9
CA9
PR57 100K
PR57 100K
DCDC_EN
C144
C144
+
+
C140
C140
10uF
10uF
0.1uF
0.1uF
470uF/16V
470uF/16V
PR58
PR58
PC19
PC19
PC20
PC20
90.9K
90.9K
PC29
PC29
PC17
PC17
PC18
PC18
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
PR59
PR59
10uF/16V
10uF/16V
10uF/16V
10uF/16V
靠近DC-DC
10K
10K
+12V_NORMAL
+5V_Normal
3
背光
R1
R1
2K
2K
BL-ADJUST
BL-ADJUST
R44
R44
1K
1K
1
R41
R41
R43
R43
Q6
Q6
NC/10K
NC/10K
3904
3904
4.7K
4.7K
C15
C15
2.2uF/DC
2.2uF/DC
1.15V
MAX 3A
+5V_Standby
R5
R5
10R
10R
+1.15V_VDDC
L4
L4
4.7uH/3A
4.7uH/3A
C18
C18
0.1uF
0.1uF
2
1
+5V_IN
R29 3K 1%
R29 3K 1%
R30 75R 1%
R30 75R 1%
R1
CE4
CE4
C19
C19
C25
C25
C23
C23
+
+
R27
R27
6.8K 1%
6.8K 1%
100uF/16V
100uF/16V
10uF/6.3V
10uF/6.3V
0.1uF
0.1uF
R2
10uF/6.3V
10uF/6.3V
靠近DC-DC
反馈电阻靠近DCDC,敏感线,远离干扰源
8pin/2.0MM
8pin/2.0MM
CN105
CN105
D527
D527
0.1pF/NC
0.1pF/NC
H22
H22
5
9
4
8
3
7
2
6
NC
NC
H19
H19
H28
H28
H27
H27
H30
H30
NC
NC
NC
NC
NC
NC
NC
NC
版权所有@深圳市康冠技术有限公司
4
3
5V
MAX 3A
PU3
PU3
PR60 10R
PR60 10R
2
5
IN
BST
+5V_Standby
PL6 4.7uH/3A
PL6 4.7uH/3A
PC21
PC21
6
EN/SYNC
0.1uF
0.1uF
3
2
1
SW
7
VCC
DCDC_FB
1
8
AAM
FB
PR61 36.5K 1%
PR61 36.5K 1%
MP9495DJ
MP9495DJ
R1
PCA6
PCA6
C88
C88
C89
C89
PR62
PR62
+
+
6.8K 1%
6.8K 1%
10uF
10uF
10uF
10uF
R2
100uF/16V
100uF/16V
靠近DC-DC
反馈电阻靠近DCDC,敏感线,远离干扰源
Vout=0.8V*(1+R1/R2)
+5V_Normal
+5V_Normal
R45
R45
R48
R48
1K
1K
4.7K
4.7K
BL-ON/OFF
BL-ON/OFF
BRI_ADJ
5
Q9
Q9
R33
R33
1
4.7K
4.7K
3904
3904
1
R46
R46
4.7K
4.7K
Q10
Q10
3904
3904
R15
R15
4.7k
4.7k
R168 10R
R168 10R
R157
R157
IR-in
R167
R167
100R
100R
IRIN
IRIN
5
C152
C152
10K
10K
+5V_Standby
33pF
33pF
0.1uF
0.1uF
IR&KEY Connector
R182
R182
C181
C181
2K
2K
1
R126 4.7K
R126 4.7K
1
IR-in
Q112
Q112
2
IR_IN
3904
3904
3
GND
R159
R159
4.7K
4.7K
LED+
R155
R155
4.7K
4.7K
4
LED
5
KEY0-in
R171
R171
1K
1K
KEY0
KEY1-in
R142
R142
1K
1K
6
KEY1
KEY_POWER
R194
R194
1K
1K
7
PWR
C179
C179
C151
C151
8
ED14
ED14
ED13
ED13
GND
C176 0.1uF
C176 0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1pF
0.1pF
0.1pF
0.1pF
KEY0-in
KEY1-in
D526
D526
R263
R263
R262
R262
R253
R253
R260
R260
R252
R252
0.1pF/NC
0.1pF/NC
1kΩ
1kΩ
2kΩ
2kΩ
6.8kΩ
6.8kΩ
2kΩ
2kΩ
6.8kΩ
6.8kΩ
SW1
SW1
SW2
SW2
SW3
SW3
SW4
SW4
SW5
SW5
SW6
SW6
SW7
SW7
C11
C11
0.1uF
0.1uF
POWER
POWER
VOL-
VOL-
VOL+
VOL+
MENU
MENU
CH+
CH+
CH-
CH-
SOURCE
SOURCE
42
3
2
3.3V_Normal
U110
U110
1117-3.3V
1117-3.3V
350mA Max
400mA Max
+3.3V_Normal
C9
C9
+5V_Normal
C153
C153
C148
C148
C149
C149
C150
C150
2.2uF
2.2uF
0.1uF
0.1uF
0.1uF
0.1uF
2.2uF
2.2uF
10uF
10uF
1.5V Power for DDR3
+5V_Normal
VCC_DDR
R105
R105
R1
470R
470R
300mA Max
R114
R114
0R
0R
D101
D101
NC/SS34
NC/SS34
R110
R110
VBL_CTRL 5
100R
100R
R2
VOUT=1.25×（（R1+R2）/R1）
DVB-T2 1.2V
LED_R
LED_R
5
+3.3V_Standby
KEY0_IN
KEY0_IN
5
+5V_Normal
KEY1_IN
KEY1_IN
5
SAR0
SAR1
所用IO口
按键功能
CH+
CH-
SOURCE
POWER
V0L-
V0L+
MENU
电阻值
0欧
2K
6.8K
1K
0欧
2K
6.8K
电压值
0V
0.98V
1.95V
0.58V
0V
0.98V
1.95V
2
1
3.3V_STB
U104
U104
1117-3.3V
1117-3.3V
D
+3.3V_Standby
+5V_Standby
C10
C10
C154
C154
C115
C115
C116
C116
C117
C117
2.2uF
2.2uF
0.1uF
0.1uF
0.1uF
0.1uF
2.2uF
2.2uF
10uF
10uF
U106
U106
1117-ADJ
1117-ADJ
+1.5V_DDR
C8
C8
C126
C126
C127
C127
C129
C129
C128
C128
VCC_DDR
C
2.2uF
2.2uF
0.1uF
0.1uF
0.1uF
0.1uF
2.2uF
2.2uF
10uF/6.3V
10uF/6.3V
U105
U105
1117-1.2V/DVB-T2
1117-1.2V/DVB-T2
+1.2V_DEMOD
C24
C24
C130
C130
C132
C132
2.2uF/DVB-T2
2.2uF/DVB-T2
0.1uF/DVB-T2
0.1uF/DVB-T2
10uF/DVB-T2
10uF/DVB-T2
B
A
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