Sony TA-SB500WR Service Manual page 17

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3 7 63 1515 0
– DIAT POWER Board –
IC901 STR-W6765N
D 1
NC 2
S/GND 3
VCC 4
SS/OLP 5
FB 6
+
–
–
+
TE
L 13942296513 +
–
OCP/BD 7
IC904 NJM2374AE (TE2)
CS 1
Q
PWM
LOGIC
ES 2
CT 3 OSC
GND 4 VREF
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DRIVE
REGULATOR
PROTECTION
LATCH
DELAY
FB
OCP
S
Q
R
BSD
–
BOTTOM
SELECTOR
+
BD
COUNTER
S
IPK SENSE
R
+
–
PWM
–
COMPARATOR
+
ERROR AMP
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y
i
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8
REGULATOR
& ICONST
R
Q
S
OVP
OLP
+
–
SOFT START
Q
R
S
OSC
Q Q
3 6 7 1 3
8 CD
+ 7 SI
– 6 V+
5 IN+
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.
TA-SB500WR
2 9 9 4 2 8
+
START/STOP
–
BURST
BURST
CONTROL
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9
17