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

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