Sony D-V7000 - Page 21

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– MAIN Board (2/2) –
IC820 TL5001CD
IC861 TL1453CPW-E20 IC862 MC14053BDTR2
REFERENCE
VOLTAGE
S.C.P.
COMPARATOR 1
SWITCH
'ON'
AT
'H'
PWM
COMPARATOR
S.C.P.
COMPARATOR 2
DEAD-TIME
COMPARATOR
S.C.P.
LATCH
OSC
U.V.L.O
ERROR
AMP
–
+
–
+
+ –
+
–
–
+
5
6 7
8
1234
OUT VCC FEED BACK INPUTSCP
DEAD-TIME
CONTROL
RT
GND
+
–
+
–
OUTPUT 2
OUTPUT 1
PWM
COMPARATOR 1
PWM
COMPARATOR
2
VREF
ERROR AMP 1
ERROR AMP 2
REFERENCE
VOLTAGE
R
U. V. L. O.
TRIANGLE
OSCILLATOR
VREF
VREF
13141516
REF OUT UVK NON INV INPUT2 INV INPUT2
12
FEED BACK2
11
DEAD TIME CONTROL2
10
OUT2
9
VCC
CT
RT
NON INV
INPUT1
INV
INPUT1
FEED
BACK1
DEAD TIME
CONTROL1
OUT1
GND
1234 56 78
1
2
3
4
5
6
7
8
B1
B0
C.COM
CO
INH
VEE
VSS
VDD
B.COM
A.COM
A1
A0
A
B
C
C1
9
10
11
12
13
14
15
16
OPEN
OPEN
OPEN