XR-C8220R
– 23 –
– 24 –
SECTION 7
DIAGRAMS
7-1.
BLOCK DIAGRAM – TUNER Section –
1
4
2
FM-ANT
AM-ANT
6
VCO (FM/AM)
21
FM-IF-COUNT
11
AM-IF-COUNT (SEEK)
5
9
16
13
6
1
5
20
4 2
25
26
27 28
18
7
VT (FM/AM)
24
DOUT
DIN
CLK
XIN
XOUT
CE
PLLSI
PLLSO
PLLCKO
PLLCE
WIDE
AF-SEEK
1
53
VSM
20
SD-IN
4
ST-MONO
5
TUNMUTE
60
TIR-PLAY
FM OSC
15
AM OSC
IF IN
PD
NARROW
13
RECEIVE/SEEK
19
S-METER
S-METER
(RDS)
20
SD
22
18
16
12
15
ST/MONO
FM L-OUT
FM R-OUT
AM-DET
23
FM-DET
LOW-PASS
FILTER
Q17
TIME CONSTANT
SWITCH
IC11
X10
7.2MHz
FM/AM PLL
IC10
05
MUTING
Q50
MUTING
Q60
BUFFER
Q12
MUTING
CONTROL SWITCH
Q51
BAND-PASS
FILTER
IC50
R-CH
D10
IC51
AM/TIR SIGNAL SELECT
SWITCH
Q52
Q53
D50
A
(Page 27)
FM-L
B
(Page 27)
AM/TIR
FM/AM TUNER UNIT
TUX10
SYSTEM CONTROLLER
IC600 (1/5)
+
LO/DX
LO/DX
FM/AM SIGNAL
METER BUFFER
Q13
SEEKOUT
FM +B
FM B+
AM +B
AM B+
AM B+
+B (FM/AM)
WIDE/NARROW
SWITCH
Q15
3
2
R-CH
Q14
WIDE/NARROW
SWITCH
FORCED WIDE/
NARROW
52
MTP
70
I2C SIO
71
I2C CKO
75
DAVN
RDS DECODER
IC150
INTERFACE
REGISTER
IIC BUS
SLAVE
TRANSCEIVER
OSCILLATOR
& CLOCK
X150
4.332MHz
4
8
5
OSCI
OSCO
10
9
SDA
SCL
DAVN
57 kHz
BAND-PASS
FILTER
CLOCKED
COMPARATOR
RDS/RDBS
DEMODULATOR
& DECODER
SIGNAL
QUALITY
DECODER
16
18
19
MPX
CIN
4
5
SC
OUT
MULTI
PATH
DETECTOR
20
2
LVIN
MPTH
TRAFFIC INFORMATION REPLAY
IC100
SERIAL REGISTER
IC101
L.P.F.
AM
ON
FOUT
AOUT
LIN
FIN
ADIN
A/D
CONVERTER
D/A
CONVERTER
CPU INTERFACE
STATUS
REGISTER
TIMING
CONTROLLER
OSC
DATA I/O
ADPCM
ANALYZER/
SYNTHESIZER
ADDRESS
CONTROLLER
REGISTER
CONTROLLER
CS
SAD
DIN
DOUT
SADX
CE
TIR CE0
TIR CE1
TIR RD
TIR WR
TIR D0 –
TIR D3
D-IN/
OUT
RESET
XT
D0 – D3
BUSY
X100
4.19MHz
1 – 4
82 – 85
97
TIR-CE0
95
TIR-BUSY
100
TIR-RES
98 101 96
TIR-D0
–
TIR-D3
CS1
CS2
SAS
RWCK
WE
TAS
RD
WR
CE
PDWN
XT
TAS
SAS
WE
RWCK
TIR-CE1
TIR-WR
TIR-RD
99
TIR-PDOWN
FM RDS
S-METER
RV10
2
1
7
5
6
3
40
41
39
37
36
46
50
17
23
18
22
16
2
11
15
44
47
48
35
53
5
54
55
56
11
17
18
20
26
19
16
9
10
8
FM/AM
ANTENNA
• SIGNAL PATH
: FM
: AM (MW/LW)
AF SEEK SWITCH
Q16
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299