Sony WM-FX488 Service Manual page 16

WM-FX488
IC601 MM1279XVBE
V
1
PW 2
W
3
GND
4
MOTIVE
OSC 5
/OSC
DR 6
INVERTER
BIAS
VREF
7
REFERENCE
VOLTAGE
START
8
VSP 9
+
IN+ 10
16
MOTIVE
CONTROL
CIRCUIT
MOTIVE SOFT
LOGIC SWITCH
SPEED CURRENT
CONTROL CONTROL
PV
20
19 U
PRE
DRIVER
PU
18
GND
17
16 VCC
FC
15
TC1
14
13 TC2
R1
OUTPUT 12
BIAS
11 OUT