Sanyo DC-MM5000 (XE) Service Manual page 12

IC BLOCK DIAGRAM & DESCRIPTION
IC132 LB1641L (Bidirectional Motor Driver)
P1 OUT1
3
INPUT LOGIC CIRCUIT
IN1
5
GND
1
IC231 LA1844ML (Electronic Tuning-supported Home Audio Tuner IC)
24 23
ALC
AM
OSC
BUFF
LEVEL
DET
S-CURVE
FM
FM
IF
DET
2
1
IC442 TDA7265 (25+25W Stereo Amplifier
with Mute & ST-BY)
MUTE/
5
ST-BY
IN (L)
7
9
GND
IN (R) 11
VCC2 OUT2 P2 VCC
8 10 9
PRE-
DRIVE
22 21 20
AM
AM
MIX
RF.AMP
AGC
AM
AM
DET
IF
AM/FM
IF
COMP
BUFF
TUNING
DRIVE
REG GND
3 4 5
+Vs
3
4 OUT (L)
8
IN- (L)
10
IN- (R)
2 OUT (R)
1 6
-Vs
7
4
VZ
Input
IN1 IN2
0 0
1 0
0 1
1 1
6 IN2
19 18 17
ANTI-BIRDIE
P-DET
VCO
304kHz
6 7 8
IC443 BA7755A (Rec/Play Switch)
1
- 11 -
Output Action
OUT1 OUT2
0 0 Brake
1 0 Normal(Reverse)
Rotary
0 1 Reverse(Normal)
Rotary
0 0 Brake
16 15 14
PILOT
DECODER
CANCEL
STEREO
SW
FF
FF FF
38k 19k
19k
2
VCC
9 10 11
2 3 4 5
13
PILOT
DET
12