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Ic Block Diagram & Description - Sanyo DC-DA70 Service Manual

Micro component system
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IC BLOCK DIAGRAM & DESCRIPTION
IC201 LA1186N ( FM Front End)
IC601 LC72336-9921 ( Micro Processor)
MICOM NAME
PIN NO.
I/O
XIN
1
I
TEST2
2
I
PG3(S10)
3
I
CD IDATA
PG2(SO0)
4
O
CD ODATA
PG1(SCLK0)
5
O
CD CLOCK
PG0
6
O
RWC
PC3
7
O
CD RESET
PC2
8
O
Non Connection
PC1
O
Non Connection
9
PC0
10
O
Non Connection
PB3
11
O
Non Connection
PB2
12
O
BASS BOOST
PB1
13
O
Non Connection
PB0
14
O
Non Connection
PA3
15
I
KEY IN
PA2
16
I
KEY IN
PA1
17
I
WRQ
PA0
18
I
DRF
PK3
19
I
JOG VR2
PK2
20
I
JOG VR1
PK1
21
I
PICK-INSIDE
PK0(INT0)
22
I
REMOCON Input
PN3
23
O
B2
PN2
24
O
B1
PN1
25
O
MUTE
PN0
26
O
MONO
PM3
27
I/O
F1
PM2
F2
28
I/O
PM1
29
I
STIN
PM0
30
I
SYNC REC
VDD
31
-
POWER
PE3
36
I
SD
PE2
37
I
Non Connection
PE1(S18)
38
O
SEGMENT Output
PE0(S17)
39
O
SEGMENT Output
S21~S24
32~35
O
SEGMENT Output
S1~S16
40~55
O
SEGMENT Output
COM3
56
O
COM2
57
O
COM1
58
O
Vdd2
59
I
Vdd1
60
I
PJ3
61
O
Non Connection
PJ2
62
O
VOL CE
PJ1
63
O
VOL DATA
PJ0
64
O
VOL CLOCK
AD0
65
I
AD KEY:AD0
AD1
66
I
AD KEY:AD1
AD2
67
I
AD KEY:AD2
AD3
68
I
AD KEY:AD3
HOLD
69
I
HOLD
RCTR
70
I
FMIF
LCTR
71
I
AMIF
SNS
72
I
Non Connection
VDD
73
-
POWER
FMOSC
74
O
AMOSC
75
O
VSS
76
-
EO1
77
O
EO2
78
O
Non Connection
TEST1
79
-
XOUT
80
O
IC211 LA1844ML ( Tuner System)
24
23
22
ALC
AM
AM
MIX
OSC
BUFF
LEVEL
DET
S-CURVE
FM
FM
IF
DET
REG
1
2
3
NAME
Connection terminal of crystal oscillation (4.5MHz)
GND.
CD MECA Communcation Line
DSP,ASP Control
RWC Output
CD DSP RESET Output
BASS BOOST Control Output
TRNSISTOR/DIODE SW SOURCE Input
TRNSISTOR/DIODE SW SOURCE Input
WRQ Input
DRF Input(H-DL CHATTERING TIME 50MS)
JOG VR Input(CHATTERING TIME 3MS)
Phase Input
PICK-INSIDE Input
REMOCON Input
BAND Output
AUDIO MUTE Output
Compalsion MONO Output
FUNCTION Input/Output(CHATTERING TIME 40MS)
STEREO Input(CHATTERING TIME 40MS)
SYNC REC Input(CHATTERING TIME 40MS)
Power supply
SD Input
Display SEGMENT Output
VOL IC Control Output
Operating KEY Input
Destination Input
BASS-X LID SW Input(CHATTERING TIME 40MS)
BACK UP MODE Control Outpu
Power supply
Ground
Ground
Connection terminal of crystal oscillation (4.5MHz)
- 11 -
21
20
19
18
17
AM
RF.AMP
AGC
P-DET
AM
AM
φ
DET
IF
AM/FM
IF
COMP
BUFF
VCO
304kHz
TUNING
DRIVE
GND
4
5
6
7
8
FUNCTION
16
15
14
13
DECODER
PILOT
ANTI-BIRDIE
CANCEL
STEREO
SW
FF
FF
FF
PILOT
π
38k
19k∠
19k∠
DET
2
VCC
9
10
11
12

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