Baza Porad Serwisowych
VREF CDR
17 16
VDAC INTR
18 15
WE FMR
CDL FMR
19 14
INTL WE EXTR
EXTR
20 13
FML
WE FML WY R
OPR
21 12
WE EXTL EXTL
VRC
22 11
WY L OPL
VRO
23 10
VSSAL
VSSAR
24 9
VDDAL
VDDAR
25 8
Vdd +5V I.C.
MUTE
26 7
VDD
ADSEL Vdd
27 6
+5V
DOBM
PORT2
28 5
VSS SDA
SDA
29 4
SCL
XIN SCL
3
30
XOUT
RESETN
31 2
DATA PCLK
32 1
+5V
Vee
Vee
+5V
+12V
Vee
+5V
+5V
Vee Vee
L6
Vee Vee Filtr
TOKO
5.85MHz (B/G)
6.552MHz (I)
SERWIS ELEKTRONIKI
C32
330
Vssa
68
C33
R31
51k
C45
C46
330
100n
Vssa
68
C38
R42
51k
C35
C34
C31
47µ
R29
10k
220n
220n
1M
R30
Vssa
Vssa
68
C43
C37
C36
47µ
220n
220n
R40
10k
C48
68
C47
Vssa
Vssa
Vssa Vssa
U2
1M
Vssa
Vssa
Vssa
Vssa
R41
SAA7282
C27
C28
C29
C30
150
4µ7
150
4µ7
Vssa Vssa
C25
C26
Vssa
Vssa
100n
47µ
C39
C40
47u
100n
10
R28
R25
10k
R24
10k
22
22
R26
R27
Vssd
D6
Vssd
330
C44
1k
BAW62
R43
C24
220nF
Vssd
R23
220k
Vee
1M
X2
R44
8.192MHz
+5V
+5V
Vcc
Vdd
1n
C4
C23
100
Vee
BB809
D5
3k9
R9
Vssd
C5
150
Vcc
Vee
Vee
Vee
C21
R15
C22
R16
150
22k
150
22k
20
19
18
17
16
15
14
13
12
11
R22
R21
100k
100k
IMC
Vcc
DATA
QMC
BC548
VEED
CLKIN
T4
R17
R14
U1
Vssd
R19
10k
TDA8732
C20
330
CARLPF
VCCD
CAROSC
VEEA
TEST
QPSKIN
CSM
CFO
VCCA
CLK
CFI
SFO
SFI
CKLPF
CKOSC
C19
6n8
82k
Vss
2
3
4
5
6
7
8
9
10
C1
10n
27k
C3
33k
R18
Vdd
150n
Vssd
Vssd
C11
+5V
+5V
Vcc
22n
R13
+12V
100k
Rys.10. Przykładowy schemat dekodera NICAM drugiej generacji.
Vee
1
C2
Vee
10n
BF240
T2
C13
R11
3k3
3k3
100n
R10
Vee
R8
C12
240
22n
Vee
Vee
R4
2k2
+5V
33
33
C16
C15
Vcc
C10
10n
L2
1mH
1mH
X1
11.7MHz(B/G)
13.104MHz(I)
R12
3k3
C18
68
Vee
Vee
56
R7
Vee
Vcc
C8
C9
R3
T1
BC546
10n
4u7
430
C14
100
C17
L3
100
D1
BB405
Vee
Vcc
Vee
R2
R5
R6
3k9
1k
3k9
C7
10n
Vssa Vssd
R1
C6
3k9
10n
+12V
GND
GND
DQPSKIN
+5V VDD
+5V VCC