Ssb: Dvb - Demodulator - Philips LC7.2HU Service Manual

Circuit Diagrams and PWB Layouts

SSB: DVB - Demodulator

1 2
DVB - DEMODULATOR
B03B
A
B
C
4MHZ_CLK
IF32
RF_AGC_IBO
+5V_SW
D
+5V_SW
2F27
7F04-1
LM393D 100n
8
3V3
3F24
3
COMP_OUT
1
IF18
100K
2
2V2
3V3
4
E
+5V_SW
7F04-2
8
LM393D
5
7
6
+5V_SW
4
F
I2C_TDA_SDA
I2C_TDA_SCL
G
H
3139 123 6266.2
1 2
LC7.2HU LB
3 4 5
+3V3
7F02
3V2
74AHC1GU04GW
FF10
IF10 2 4
1
1V6
1V3 NC
3F11
680K
3F13 220K
+3V3
7F03
3V2
74AHC1GU04GW
FF13
2 4
1
1V3 1V6
NC
3F15
680K
3F17 220K
RES
+5V_SW
+5V_SW
IF14 IF15
3F25
4F11 4F12
100K
FF16
RES
IF_AGC_IBO
2F28
2F29 100n
100n
FF18
VIM_IBO
2F31 100n
FF20
VIP_IBO 2F32 100n
3F28 3F29
2F33
10p 100K 100K
COMP_OUT
FE_LOCK
+5V_SW +5V_SW
I2C_LOCAL_SDA
3F41 3F42
2K7 2K7 I2C_LOCAL_SCL
3 4 5
7. 33
6 7 8
+3V3FE
3F10
4MHz_MOJO
+1V8S_SW
IF11
330R
FF11
3F12
330R
2F14 2F15
100n 100n
+3V3FE
IF12
3F14
330R
3F16
2F26
390R 100n
7F01 64 60 59 57 53 50
TDA10046AHT
+5V_SW
RESET_FE_n
IF13
3F18
3F19 3F20 9
3V2
CLR_ CLR_
4K7 4K7
10K
IF16
1
2V8
AGC_TUN AGC_TUN
IF17
3F26
2
1V3
AGC_IF AGC_IF
1K0
FF17
62 COFDM
1V5
VIP VIP
FF19
61
1V5 CHANNEL DECODER
VIM VIM
FF21
54
0V7
XIN XIN
FF22
0V6 55
XOUT XOUT
FF23
2V3 21
GPIO0 GPIO0
23
GPIO1 GPIO1
FF24 3F30
IF19 25
GPIO2 GPIO2
3V2
33R
26
GPIO3 GPIO3
3F33
+3V3FE
10K
11
SADDR0 SADDR0
10
SADDR1 SADDR1
3F40 4V6 8
100R
SDA SDA
FF25
3F44 4V6 6
100R
SCL SCL
FF26 FF27
4
3F46 100R 5V
SDA_TUN SDA_TUN
FF28 FF29
5V 3
3F48 100R
SCL_TUN SCL_TUN
FF30
12
TEST TEST
63 58 56 52
6 7 8
9 10 11
5F10
+3V3FE +3V3
60R
2F10 2F11
100n 47u 16V
FF12 5F11
+1V8S_SW
60R
2F16 2F13 2F17 2F18
2F19 2F20
2F21
100n 100n 100n 100n 100n 100n
47u 16V
+3V3FE
FF14
2F23 2F25 2F24
100n 100n 100n
42 22 5 47 34 19
3F21
20 0V 10046_TDO
TDO TDO
33R
17 0V STV_TDO
TDI TDI
16 2V4 JTAG_TMS
TMS TMS
18 0V JTAG_TCK
TCK TCK
14 2V4 JTAG_TRST
TRST TRST
13
ENSERI ENSERI
32
S_DO S_DO
31
S_OCLK S_OCLK
30
S_DEN S_DEN
28
S_PSYNC
S_PSYNC
27
S_UNCOR S_UNCOR
IF20
38 2V2 3F31-4 4 5 33R TDA_DAT(0)
DO0 DO0
39 2V2 3F31-3 3 6 33R IF21
TDA_DAT(1)
DO1 DO1
IF22
41 2V2 3F31-2 2 7 33R TDA_DAT(2)
DO2 DO2
43 2V2 3F31-1 1 8 33R IF23
TDA_DAT(3)
DO3 DO3
IF24
44 2V2 3F32-4 4 5 33R TDA_DAT(4)
DO4 DO4
46 2V2 3F32-3 3 6 33R IF25
TDA_DAT(5)
DO5 DO5
48 2V2 3F32-2 2 7 33R IF26
TDA_DAT(6)
DO6 DO6
IF27
49 2V2 3F32-1 1 8 33R TDA_DAT(7)
DO7 DO7
37 1V7 33R IF28 TDA_CLK
3F34-1 1 8
OCLK OCLK
36 1V3 3F34-2 33R IF29 TDA_VALID
2 7
DEN DEN
35 33R IF30
0V 3F34-3 3 6 TDA_SYNC
PSYNC PSYNC
33
0V
UNCOR UNCOR
51 IF31
SACLK SACLK
45 40 29 24 15 7
9 10 11
12
2F10 B10 IF14 D3
2F11 B11 IF15 D4
2F12 C7 IF16 D7
B03B
2F13 C9 IF17 E7
2F14 C8 IF18 E3
2F15 C8 IF19 F7
2F16 C9 IF20 F11
A
2F17 C10 IF21 F11
2F18 C11 IF22 F11
2F19 C9 IF23 F11
2F20 C10 IF24 F11
2F21 C10 IF25 F11
2F22 C7 IF26 F11
2F23 C10 IF27 F11
2F24 C10 IF28 G11
2F25 C10 IF29 G11
2F26 C6 IF30 G11
2F27 D3 IF31 G10
2F28 E4 IF32 D2
B
2F29 E5
2F30 E2
2F31 E5
2F32 E5
2F33 E4
3F10 B6
3F11 C5
3F12 C6
3F13 C5
3F14 C6
3F15 C5
C
3F16 C6
3F17 D5
3F18 D7
3F19 D6
3F20 D6
3F21 D10
3F22 D4
3F23 D2
3F24 D3
3F25 D5
3F26 E6
3F27 E4
D
3F28 E5
3F29 E5
3F30 F7
3F31-1 F10
3F31-2 F10
3F31-3 F10
3F31-4 F10
3F32-1 F10
3F32-2 F10
3F32-3 F10
3F32-4 F10
3F33 F7
E
3F34-1 G10
3F34-2 G10
3F34-3 G10
3F40 F7
3F41 F4
3F42 F4
3F44 G7
3F46 G7
3F48 G7
TDA_DAT(0:7) 4F11 D3
4F12 D4
F 5F10 B11
5F11 C11
7F01 D8
7F02 B5
7F03 C5
7F04-1 D2
7F04-2 E2
FF10 B6
FF11 C8
FF12 C9
FF13 C6
FF14 C9
G
FF16 E5
FF17 E7
FF18 E5
FF19 E7
FF20 E5
FF21 E7
FF22 E7
FF23 E7
FF24 F6
FF25 G7
FF26 G6
FF27 G7
H
FF28 G6
FF29 G7
FF30 G7
IF10 B5
H_16990_003.eps IF11 B6
IF12 C6
090707
IF13 D7
12