Daewoo L32R63 VKE Series, Руководство по техническому обслуживанию

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Document: After-sales Maintenance Service Manual No.: L32R63*VKE/L40R63*VKE/L43R63*VKE/L49R63*VKE Version: 1.0 Effective from: APRIL 4th, 2016
Page 48 of 49
XV. Circuit Diagram (49", 3in1 board)
IF- IF+
IF-IN+ IF-IN-
IF_AGC_T
DIF+
IF-IN+
IF-IN-
DIF-
IF_AGC_T
RF
SCL-T
SDA-T
SDA-T SCL-T
+3.3V_TU
+3.3V_TU
DIF
-
5
DIF
+
5
IFAGC_T
5
TUNER_SCL
5
TUNER_SDA
5
TUNE
R
屏蔽罩
Si2151
DVB-C/T/T2 DIF
AGC RC Filter &I2C
Close Tuner
I2C
Addr:
0xC0
C20 33pF C20 33pF
R
2
0R
R
2
0R
L9
BEAD 600
Ω
@100Mhz
L9
BEAD 600
Ω
@100Mhz
CON1
TUNER_CONNECTOR
CON1
TUNER_CONNECTOR
1 2 3 4
L3 270nH L3 270nH
C39 NC/33pF C39 NC/33pF R1
3
100R
R1
3
100R
C
8
39pF
C
8
39pF
C
5
39pF
C
5
39pF
L6 270nH L6 270nH L2 270nH L2 270nH L5 270nH L5 270nH
C1 1nF C1 1nF
D1 NC/BAV99 D1 NC/BAV99
3
2
1
C13 180pF C13 180pF
C2 1nF C2 1nF
J3
22*16M
M
屏蔽罩
J3
22*16M
M
屏蔽罩
1 2 3 4
L1
270nH
L1
270nH
C11 22uf/6.3V C11 22uf/6.3V
L8
BEAD 600
Ω
@100Mhz
L8
BEAD 600
Ω
@100Mhz
C73
22pF
C73
22pF
C19 33pF C19 33pF
C41 NC/33pF C41 NC/33pF
C7
2
22pF
C7
2
22pF
L4 180nH L4 180nH
C3 1uF C3 1uF
C58 0.1uF C58 0.1uF
C
6
47pF
C
6
47pF
Y1
24MHZ/8pF
Y1
24MHZ/8pF
1 2
3
R
1
0R
R
1
0R
R
3
0R
R
3
0R
C
4
0.1uF
C
4
0.1uF
TP1TP1
1
C
7
0.1uF
C
7
0.1uF
U2
Si2151
U2
Si2151
RF_REF
19
RF_IP
20
RF_IN
22
ADDR
23
SCL
3
SDA
2
GND
8
GND
16
XTAL_O
14
XTAL_I
13
GND
21
GND_ EPAD
25
NC
18
AGC2
4
AGC1
5
1.8V
7
3.3V
9
GPIO2
1
3.3V
15
GPIO1
24
3.3V
17
IF_N
10
IF_P
11
XOUT
12
GND
6
L32R63_VKE,L40R63_VKE,L43R63_VKE,L49R63_VKE_CIS_Russia.indd 48 2016-04-05 오전 11:01:13