Philips 24PHS5507/12 Service Manual page 51

9-2-7 Tuner
1 ' s t S o u r c e : T C L S T 4 2 W S - 1 7 - E ( 3 9 4 G N P A L A L L 5 3 L ) _ S C L - T r < 1 0 0 0 n s * 9 0 %
2'nd Source : LGIT TDSY-G480D (394GPASEBIL03G)_ SCL-Tr <300ns*90%
T 2 T U N E R
TU101
L G T u n e r w i t h D V B - C / T / T 2
8 1
TH1 Ant. PWR
9
TH2
10 2
+3.3V_TU
4
TH3 +B1(+3.3V)
11
TH4
12 3
TUN_SDA R4186
4,9,11
TH5 SDA
13
22 OHM
TH6
4 TUN_SCL
R4187
4,9,11
SCL
22 OHM
5 TUN_DIF-#T2
DIF(N)
6 TUN_DIF+#T2
DIF(P)
7 IF_AGC_T
R4183 100 OHM
IF AGC
C l o s e T u n e r
100NF 16V
C4127
1 ' s t S o u r c e : L G T D Q S - A 7 0 1 F ( 3 9 4 G P A S E B I L 0 4 G )
2'nd Source :TCL TUNER EU ()
TU102 T P V : c h a n g e T U 1 0 3 p a r t s n u m b e r f o l l o w L G . 1 / 6
S 2 T U N E R
L G T u n e r w i t h D V B - S / S 2
C4133
1nF 50V
12 1
VCC_LNBA
TH1 LNB A
13
TH2
14 2
TH3 NC
15
TH4
3
+3V3_VCC_S2
TU3.3V
4
NC
5
QP Output
6
IP Output
7
NC
8
AGC
9
X-OUT
10
R4202
SDA
22 OHM
11
R4204
SCL
22 OHM
C4151
C4147 C4150
10PF 50V 10PF 50V
+3.3V_TU
M-SDA
M-SCL
IFAGC_T
4 IFAGC_T
+3.3V_TU
FB412
1 2
120R 3A
C4138
C4139
100NF 16V
10uF 6.3V
4
QP_S_1
4
IP_S_1
4
IFAGC_S
C L O S E T O T U N E R
M-SDA
4,9,11
M-SDA
M-SCL
4,9,11
M-SCL
D V B - C / T / T 2 D I F
C4118
C4119
NC/10PF 50V
NC/10PF 50V
TUN_DIF-#T2 R4174 R4175 R4176
4
R
0R05 0R05 0R05
TUN_DIF+#T2 R4178 R4180
R4179
4
0R05 0R05
0R05
R
C4123 C4124
NC/10PF 50V NC/10PF 50V
C L O S E T O T U N E R
L N B P O W E R S U P P L Y
+12V_Normal
L403
C4131
C4130
10UF 16V
100NF 25V
R4190 C4136 220NF 50V
C4140
60.4K 1%
8
11
12
+12V_Normal
3.3NF 50V
10
2
LNB_EN
R4191 NC/10K
+3.3V_TU
1
R4192 NC/10K LNB_LINEDROP
14
R4193 NC/10K PWM1/13/18V_SW
R4198
R4200
10K
10K
T U N E R P O W E R
+5V_Normal
U414
DIF-
AZ1117CH-3.3TRG1
3
VIN
R4177
NC/180R
C4122
DIF+
10uF 6.3V
D4003
10uH
1 2
C4132 C4134 C4135
SM240A
L I N E D R O
Low: 13/18V
High:
14/19V
U415 MP8124GD  Z
4
D4006
AGND PGND C4142
3
SM240A
BY PASS SW
5
VDD BST
6
COMP VBOOST
7
EN VOUT 100NF 25V
LINEDROP C4146
9
TCAP
13
C4145
13V/18V EXTM
D4004
22nF 10% 50V
SM240A
0.1uF 50V
R4201
4
DISEQC_OUT
DISEQC
33 OHM
+3.3V_TU
2
VOUT
C4121
100NF 16V C4120
10uF 6.3V
LNB_EN
4
LNB_EN
PWM1/13/18V_SW
4
PWM1/13/18V_SW
+12V_Normal
3,4,5,11 +12V_Normal
P : 1 3 / 1 8 V _ S W : L N B _ E N :
High: 18V Low: disable
Low: 13V High: enable
E S D & S u r g e
Protect
VCC_LNBA
ZD4007 ZD4008 R4194 R4195 R4197 ZD4005
3K 3K 3K
NC/AZ6518-01F.R7G