Sanyo DC-C30 Service Manual page 21

IC BLOCK DIAGRAM& DESCRIPTION
IC103 LA6541 (Pickup Actuator&CD Mechanism Motor)
IC131, IC132 TA7291S (Bridge Driver]
Vcc
V,ef VIN4 VG4 Vc.0 V07 GND
V06
V05
vG3 VIN3 CD RES
24 23 22 21 20 19
r
I
18 17 16 15 14 13
IlkCl
V.x
F - -"
F T
llk(l
-+
Level BTL bwl
sift E Driver aim
RESE7
VW Vref
7RrT$aJ$ -0"'2
IN1 IN2 GND
VW Mule V8N1 VG1 VO1 Voz GND Vas V04 VG2 VINZ RW OUT Reu IN
AGC
BY-PASS
RF IN
IC245 LC72121 M (PLL Synthesizer)
1
1 1
Oac
1
0s2
12 BUFFER
our
I
REFJF~E
XOUT
J
I
BWPJ.LCAVCOUt+TER
AIN
UNLOCK
1/16,1/174b4$ DE7ECTOR
F
d
La
AOUT
V33a
AMIN
CE
01
CL
00
.—— —
BO1 B02 W23 B04 mm
1
13 IFIN
IC362 TC4011 BF (NAND Gate)
VDD A4 04 X4 X3 B3 A3
Al B1 Xl X2 B2
A2 VSS
-20
IC231 LA1832ML (AM/FM IF Amplifier & FM-MPX)
Osc
FM
FM-DET
BUFF &C 84PU-W R:!MP V-SM LO&J7 0~
Vco t.UJTE R-OUT L-OUT
-+=0
Fi[N iM R;G AM–IF GNO TU-LED ST-LEO FM OET VCC SEEK —
(107MNz) MIX
(MUTE ) AM IFM
AM/FM
IC361 BU2090F (12bit Serial Parallel Converter)
DATA
CLOCK
Vss
VDD
m
4
II
OUTPUT BUFFER (OPEN DLAIN)
I
No. Pin Name Porf Name Function
1 Vss Vss
Ground
2 DATA D-OUT Data input
3
CLOCK EX1-CLK Clock input
4 m BEAT Tape beat chancel output (L= Pos1, H. Pos.2)
5
Q1
Osc Tape oscillation circuit control (L=OFF, H=ON)
6
Q
7
03
R-MUTE
Tape REC mute output (L=OFF, H=ON)
8 Q4 DECK-FdB Deck A I B control (L=B, H=A)
9 05
10
06 F#P Tape Rec / Play control (L=Rec, H= Play)
11
Q7
12 CF3 MOTOR Tape motor output
13 03 A-PLY-PL Dack A Play Plunger output
14
Q1O
BPLY-PL Dack B Play Plunger output
15 I QI 1'
I
I
16 I
VDD
VDD I Power supply