Sony UDA-1 Service Manual page 49

IC107, 309 TC74VHC157FT (EKJ)
SELECT 11 1 16
V
S
15
1A 2 1A G STROBE
INPUT
3 14 4A
1B 1B 4A
4B
4 13
OUTPUT 1Y 1Y 4B
2A 5 2A 4Y 11 12 4Y
INPUT
6 11 3A
2B 2B 3A
7 10 3B
OUTPUT 2Y 2Y 3B
3Y
GND 8 3Y
9
IC201 BD6047GUL-E2
IN A1
IN A2
IN A3
UVLO
OVLO
VREF
OCP
TSD
B1 B2 B3
IC202 RP170N331D-FE
VDD 1
–
+
VREF
CURRENT
LIMIT
THERMAL
SHUTDOWN
GND 2
CE
3
CC
INPUT
OUTPUT
INPUT
OUTPUT
NVP
INITIAL
DELAY
TIMING
GENERATOR
OSC
5 VOUT
4 N.C.
IC110 BD00HC5WEFJ-E2
8 7 6
OVER CURRENT
PROTECT
+
+
THERMAL
SHUTDOWN
1
C3 FLGB
C2 OUT
C1 OUT
GATE
DRIVER
INITIAL
DELAY
IC308 BU4229F-TR
GND 1
VREF
VDD 2
5
SOFT
START
2
3 4
+
–
4
3
UDA-1
VOUT
CT
49