Panasonic Quasar PV-D300 Service Manual page 174

IC1001 PWM CONTROL IC-DETAIL BLOCK DIAGRAM, BA9710KV
36 35 34 33
VDD
37
REFERENCE
VOLTAGE
REGULATOR
38
39
SHORT
CIRCUIT
40
PROTECTOR
41
1/4
42
LATCH
DIVIDER
43
44
TRIANGLE
WAVE
OSCILLATOR
45
46
47
ERROR
48
AMP
+
1 2 3 4
32 31 30 29 28 27 26
DRIVE
+
PWM
CONTROL
PWM
CONTROL
PWM
CONTROL
PWM
CONTROL
ERROR
AMP
+
DRIVE
9
5 6 7 8 10 11
25
24
VCC 23
22
21
DRIVE
20
19
18
17
DRIVE
16
15
VCC
14
13
12