Grundig 40 VLE 8190 S WEB, Руководство по обслуживанию

Страница: 56 / 68

GR
UNDIG
Ser
vice
Chassis TX
2 - 24
QP_1
SDAT_1
IP_1
SCLT_1
AGC_1
LNB_RF1
AGC1_RF
XTAL_D
QM_1
IM_1
AGC1_RF
C6
10p
R4 100R
C4
100n
R5 100R
C24
10n
C14
10p
R7 100R
1
2
3
4
5
J1
COAX_F
C23
100n
C2
12p
XtalCMD
1
AGC
2
GNDIna
3
RFin
4
RFgnd
5
VCCIna
6
RFout
7
VCCIt
8
GNDI
t
9
GNDmix
10
SC
L
12
SD
A
13
VCCd
ig
14
GNDd
ig
15
AS
16
VCCmix
11
NC
24
NC
23
VCCbb
22
Qp
21
Qn
20
In
19
Ip
18
GNDbb
17
Xt
al
ou
t
32
Xt
al
in
n
31
Xt
al
in
30
GNDsyn
29
VCCs
yn
28
VCCvco
27
GNDvco
26
GNDvco
25
GNDEx
33
IC1
STV6110A
C11
10p
C3
12p
C21
100p
C12
10p
C5
100n
C18
10p
R3 0R
C10
100n
R1 1K
C17
10p
C25
100p
R6 100R
C15
10p
C9
27pF
C16
10p
D1
LNBTVS3-220U
L1
27nH/800mA
C20
100n
C7
100n
R2
0R
C13
10p
C22
100n
C1 100p
C19
1n
GND
3V3RF1
3V3RF1
3V3RF1
3V3RF1
3V3RF1
3V3RF1
3V3RF1
3V3TUNER 3V3RF1
LNB_RF1
IM_1
QM_1
QP_1
SCLT_1
SDAT_1
AGC_1
IP_1
XTAL_D
shielding area
75ohm Microtrip line
SDA
SCL
LNB_RF1
R14
100R
C31
47n
R22
100
R15
1.5k
C32
100n
C29
220n
D4
STPS130A
L4
NR6045T220M
C27
470NF/25V
D2
GS1M
R20
22K
+ EC2
100uF 35V
GND
GND
GND
GND
GND
GND
GND
+12V
SCL
SDA
LNB_RF1
Read :0x15
R19
470R
R16
NC/10k
3V3TUNER
5V_ST.BY
+12V
3V3TUNER
R12
1k
R10
12K%1
R13
1K
C30
22UF/6.3V
C28
1n
L3
220@100MHz
L2
NR4018T3R3M
C37
22UF/6.3V
R11
47K%1
GND
GND
GND GND
GND
GND
VDD_1V0
5V_ST.BY
FB
1
GND
2
SW
3
VIN_B
4
VIN_A
5
EN
6
7
IC3
ST1S06PUR
max 600mA
VDD_1V0
1V0_SENSE R9 560R
1V0_SENSE
C26
22UF/6.3V
D3
BAT54C
GND
R21
2.7k 1%
R25
1K 1%
C36
1n
GND
C3
4
22
u/
6.
3V
X7
R
IN
1
IN
2
PG
3
VCC
4
EN
5
GND
6
SS
7
FB
8
OUT
9
OUT
10
PA
D
IC4
AP7173
C38
1uF 10V
R23 10k
R24
2.2k
2mS delay
max 360mA
Pd=0,6W
R18 100
R17 100
3V3TUNER
3V3TUNER
GND
R37 2.2R
C57
22UF/6.3V
C76
22uF/10V
C35
220nF
C33
220nF
1
3
2
4
X1
LX
4
VCC-L
18
VOTX
22
ISEL
28
EXTM
13
DSQIN
12
ADDR
10
SCL
9
SDA
6
BYP
15
Vup
27
VCC
19
A-
GN
D
20
VORX
21
PDC
11
TTX
14
P-
GN
D
5
RS
V
29
NC
1
NC
2
NC
3
NC
7
NC
8
NC
16
NC
17
NC
23
NC
24
NC
25
NC
26
NC
31
NC
32
NC
33
IC2 LNBH23L
2
4
1
E1
3
T1
BFG425W
R41
3.3K
R40
3.3K
R39
0R
R38
47R
0.2mm x
20mm
C59
100nF
C8
1uF
3V3TUNER
C68
NC
C79
NC
C78
3.3pF
NO mid
la
ye
r
+
EC3
100uF 35V
+
EC1
100uF 35V
R42
NC/0R
DISEQC_OUT
R42-> STV0903 CONTROL
R22-> I2C CONTROL
TP17
TP15
TP14
TP16
C77
1p
TP19
L7
PBY160808T-301Y-S
L6
SBY100505T-102Y-N
C84
2.2pF
32
35
34
30
33
29
SAT-Baustein / Board
STV6110A
PLL, dividers
Amplifier
RF_IN
IP
I
2
C bus interface
IN
QP
QN
AGC
RF_OUT
SCL
XTAL_IN
SDA
DC offset compensation
XTAL_OUT
LNBH23
ADDR
A-GND
DSQIN
Vup
VoRX
VoTX
LX
Rsense
VSEL TTX
VSEL
EXTM
P-GND
Byp Vcc Vcc- ISEL TTX
DSQOUT
DETIN
22KHz Tone
Amp. Diagn.
22KHz Tone
Freq. Detector
CTRLV
SDA SCL ADDR
A-GND
I²C Diagnostics
I²C interface
DSQIN
Vup
VoRX
VoTX
LX
22KHz
Oscill.
PW
M Controller
Rsense
EN
VSEL
Linear Post-reg
+Modulator
+Protections
+Diagnostics
ITEST
TTX
EN
VSEL
VOUT Control
EXTM
P-GND
Preregulator
+U.V.lockout
+P.ON reset
Byp Vcc Vcc- Byp Vcc Vcc- L ISEL TTX
TEN
DSQOUT
DETIN
22KHz Tone
Amp. Diagn.
22KHz Tone
Freq. Detector
TTX
ST1S06
MOSEFET
Control
Logic
I_SEN
+
–
+
–
OSC
Soft Start Shut Down
SW
VO/FB
INH
GND
REF
V
IN_A
V
IN_SW
R-sense
AP7173
Gate
Driver
Current Limit and
Thermal Shutdown
0.8V
0.72V
OUT
SS
FB
GND
IN
VCC
PG
EN
+
-
+
-
ª
º ¤ ‹ › fi