Ic Block Diagram & Description - Sanyo DC-DA170 Service Manual

IC BLOCK DIAGRAM & DESCRIPTION
IC201 TA8176SN ( FM Front End) (UK ONLY)
5 7 8
Vcc
Vcc
MIXER
AGC 1
BY-PASS 2
AGC DET
RF IN
3
IC601 LC72336-9A15 ( Micro Processor)
MICOM NAME
XIN
TEST2
PG3(S10)
PG2(SO0)
PG1(SCLK0)
PG0
PC3
PC2
PC1
PC0
PB3
PB2
PB1
PB0
PA3
PA2
PA1
PA0
PK3
PK2
PK1
PK0(INT0)
PN3
PN2
PN1
PN0
PM3
PM2
PM1
PM0
VDD
PE3
PE2
PE1(S18)
PE0(S17)
S21~S24
S1~S16
COM3
COM2
COM1
Vdd2
Vdd1
PJ3
PJ2
PJ1
PJ0
AD0
AD1
AD2
AD3
HOLD
RCTR
LCTR
SNS
VDD
FMOSC
AMOSC
VSS
EO1
EO2
TEST1
XOUT
9 4 6 10
IF
Buffer
Buffer Local
11
OSC
Amp
OSC
Buffer
12
BUFFE
OUT
BIAS
PIN NO. I/O
1 I
2 I
3 I CD IDATA
4 O CD ODATA
5 O CD CLOCK
6 O RWC
7 O CD RESET
8 O Non Connection
9 O Non Connection
10 O Non Connection
11 O Non Connection
12 O BASS BOOST
13 O Non Connection
14 O Non Connection
15 I KEY IN
16 I KEY IN
17 I WRQ
18 I DRF
19 I JOG VR2
20 I JOG VR1
21 I PICK-INSIDE
22 I REMOCON Input
B2
23 O
24 O B1
25 O MUTE
26 O MONO
27 I/O F1
28 I/O F2
29 I STIN
30 I SYNC REC
31 - POWER
36 I SD
37 I Non Connection
38 O SEGMENT Output
39 O SEGMENT Output
32~35 O SEGMENT Output
40~55 O SEGMENT Output
56 O
57 O
58 O
59 I
60 I
61 O Non Connection
62 O VOL CE
63 O VOL DATA
64 O VOL CLOCK
AD KEY:AD0
65 I
66 I AD KEY:AD1
67 I AD KEY:AD2
68 I AD KEY:AD3
69 I HOLD
70 I FMIF
71 I AMIF
72 I Non Connection
73 - POWER
74 O
75 O
76 -
77 O
78 O Non Connection
79 -
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 FUNCTION
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)
- 13 -
21 20 19 18 17
AM
RF.AMP
AGC
ANTI-BIRDIE
P-DET
AM
AM
DET
IF
AM/FM
IF
COMP
BUFF
VCO
304kHz
TUNING
DRIVE
GND
4 5 6 7 8
16 15 14 13
DECODER PILOT
CANCEL
STEREO
SW
FF FF FF PILOT
38k 19k 19k DET
2
VCC
9 10 11 12