Philips 32PHS5505/12, Service Manual

Page: 68 / 110

9-3-7 Tuner
R4197
3.
9K
1
/4
W
C4118
NC/10PF 50V
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%
C4139
10UF 6.3V 20%
IFAGC_S
4
VCC_LNBA
T 2 T U N E R
L G T u n e r w i t h D V B - C / T / T 2
TU102
TH1
12
TH2
13
TH3
14
TH4
15
LNB A
1
NC
2
TU3.3V
3
NC
4
QP Output
5
IP Output
6
NC
7
AGC
8
X-OUT
9
SDA
10
SCL
11
L403 10uH
C4138
100NF 16V
+3.3V_TU
C4132
1
0u
F
2
5
V
FB412
120R 3A
1 2
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
C4151
1N
F
5
0V
C4133
1NF 50V
C L O S E T O T U N E R
L G T u n e r w i t h D V B - S / S 2
R4204
22 OHM 1/16W
S 2 T U N E R
R4202
22 OHM 1/16W
C4147
10
P
F
5
0V
M-SDA
C4150
10
P
F
5
0V
U415 MP8124GD Z 
AGND
8
BYPASS
11
VDD
12
COMP
10
EN
2
LINEDROP
1
TCAP
9
VOUT
7
VBOOST
6
BST
5
SW
3
PGND
4
13V/18V
14
EXTM
13
R4190 60.4K 1%
R4191 NC/10K
C4140 3.3NF 50V
R
C4134
1
0u
F
2
5
V
R4193 NC/10K
PWM1/13/18V_SW
R4200
10K
C4136
220NF 16V
R4192 NC/10K
R
LNB_EN
+3.3V_TU
C L O S E T O T U N E R
T U N E R P O W E R
M-SCL
4,9,11
M-SDA
4,9,11
C4123
NC/10PF 50V
D V B - C / T / T 2 D I F
VCC_LNBA
R4203
100K 1%
C4146
22nF 10% 50V
R4201
33 OHM 1/16W
R4187
22 OHM 1/16W
+12V_Normal
QP_S_1
4
IP_S_1
4
C4142
100NF 25V
D4003
SM340A
1 2
D4010
SM340A
1
2
D4004
SM340A
1
2
L N B P O W E R S U P P L Y
L I N E D R O P :
Low: 13/18V
High:
14/19V
E S D & S u r g e
Protect
1 3 / 1 8 V _ S W :
High: 18V
Low: 13V
L N B _ E N :
Low: disable
High: enable
ZD452
P
JS
D
24
C
W
1
2
C l o s e T u n e r
TUN_DIF-#T2
IFAGC_T IF_AGC_T
#T2
R4183 100OHM
IFAGC_T 4
C4127
100NF 16V
LNB_EN
PWM1/13/18V_SW
LNB_EN 4
PWM1/13/18V_SW 4
R4194
3.
9K
1
/4
W
R4195
3.
9K
1
/4
W
+5V_Normal
C4121
100NF 16V
R4179
0R05 1/16W
R4175
0R05 1/16W
+3.3V_TU
U414
AZ1117CH-3.3TRG1
A
D
J(
G
N
D
)
1
VOUT
2
VIN
3
4
4
R4186
22 OHM 1/16W
#T2
TUN_DIF-#T2
C4122
10UF 6.3V 20%
+3.3V_TU 4
+3.3V_TU
C4120
10UF 6.3V 20%
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 ()
C4130
100NF 25V
R4198
10K
TU101
Ant. PWR
1
+B1(+3.3V)
2
SDA
3
SCL
4
DIF(N)
5
DIF(P)
6
IF AGC
7
TH1
8
TH2
9
TH3
10
TH4
11
TH5
12
TH6
13
ZD4005
NC/AZ6518-01F.R7G
1
2
LNB_LINEDROP
R4176
0R05 1/16W
R4180
0R05 1/16W
C4145
100nF 35V
DIF- 4
DIF+ 4
DISEQC
4
C4131
10UF 16V
R4177
NC/180R
M-SCL
4,9,11
M-SDA
4,9,11
M-SCL
TUN_SDA
TUN_SCL
+12V_Normal 3,4,5,11
+12V_Normal
+3V3_VCC_S2
C4119
NC/10PF 50V
C4135
1
0u
F
2
5
V
C4124
NC/10PF 50V
R4174
0R05 1/16W
ZD451
P
JS
D
24
C
W
1
2
R4178
0R05 1/16W