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Sanyo DC-M3 Service Manual page 19

Separate mini component system
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IC BLOCK DIAGRAM & DESCRIPTION
IC241 LC72121M (PLL Synthesizer)
VREF
1
Vdda
3
REFERENCE
VOLTAGE
4
Vssa
57kHz
BPF
ANTIALIASING
(SCF)
2
MPXIN
FILTER
DO
20
R A M
CL
21
(24 BLOCK DATA)
C C B
DI
22
CE
23
T1
7
MEMORY CONTROL
T2
8
TEST
T3~T7
9~11,16,17
IC251 LC72722 (RDS Signal Processor)
Vdda
3
Vssa
4
2
MPXIN
DO
20
CL
21
DI
22
CE
23
T1
7
T2
8
T3~T7
9~11,16,17
IC415 LA2615 (Surround Signal Processor)
GCR
GLR
POG
P16
P15
P14
ANALOG
SURROUND
P1
P2
P3
CONT1
CONT2
CONT3
FLOUT CIN
5
6
PLL
(57kHz)
VREF
SMOOTHING
FILTER
ERROR CORRECTION
SYNC/EC CONTROLLER
(SOFT DECISION)
CLK(4.332MHz)
SYNC
DETECT-1
OSC / DIVIDER
13
12
XOUT
XIN
VREF
1
REFERENCE
VOLTAGE
57kHz
BPF
ANTIALIASING
(SCF)
FILTER
R A M
(24 BLOCK DATA)
C C B
MEMORY CONTROL
TEST
LPFD
NC
VCC
L-OUT
P13
P12
P11
P10
Vcc
A
SW
B
ATT
LEVEL
ON/OFF
VREF
B
SW
A
P4
P5
P6
P7
GND
HFFC
VREF
L-IN
IC487 TDA7265
(25 + 25W Stereo Amplifier with Mute & ST-by)
CLOCK
14
Vddd
MUTE/
RECOVERY
(1187.5Hz)
Vssd
15
DATA
19
RDS-ID
DECODER
18
SYNC
SYR
24
SYNC
DETECT-2
FLOUT CIN
5
6
PLL
(57kHz)
VREF
SMOOTHING
FILTER
ERROR CORRECTION
(SOFT DECISION)
CLK(4.332MHz)
OSC / DIVIDER
12
13
XOUT
XIN
IC451 LC75342M
R-OUT
P9
30
28
29
1
2
3
P8
R-IN
- 18 -
+Vs
3
5
ST-BY
IN (L)
7
9
GND
IN (R)
11
1
6
-Vs
CLOCK
14
RECOVERY
(1187.5Hz)
15
DATA
19
DECODER
18
SYNC/EC CONTROLLER
24
SYNC
SYNC
DETECT-1
DETECT-2
(2-ch Stereo Audio Power Amplifier)
27
26
25
24
23
22
21
4
5
6
8
10
7
9
4
OUT (L)
8
IN- (L)
10
IN- (R)
2
OUT (R)
Vddd
Vssd
RDS-ID
SYNC
SYR
20
19
18
16
17
11
12
13
14
15

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