Sony Walkman PCM-M1 Service Manual page 30

IC502 CXA8022N
24 23 22 21 20
ROTOR
POSITION
DETECT
EXOR
SOFT
TIMING
SWITCHING
CONTROL
DRIVE
START
CONTROL
OVER HEAT PROTECT
1 2 3 4 5
IC511 TLC29321
LOGIC VCO
SELECT FIN-A FIN-B
VDD OUT
1 2 3
4 5
1/2 DIVIDER
VCO
14 13 12 11 10
VCO VCO VCO
VCO
R VIAS
VDD IN GND INHIBIT
IC504 LB1882V
W OUT 1
VS 2
VCC 2
3
VCC
VCC 1 4
TRC 5
FILTER 6
7
FC
TSD
ACC
8
VH
9
AGC
10
FG IN +
FG IN –
11
FG OUT
12
19 17 16 15 14
18
OUTPUT
DRIVE
BUFFER
6 7 8 9 10 11
PFD
LOGIC
OUT
GND
7
6
PFD
9 8
PFD
NC
INHIBIT
24
V OUT
23 U OUT
22 RF
21
U IN 1
20
U IN 2
19
V IN 1
18 V IN 2
17
W IN 1
16
W IN 2
15 FRC
FORWARD/REVERSE
REFERENCE
14 ST.BY
VOLTAGE
(H.ACTIVE)
GND
13
– 33 –
13
12