Sony HT-CT770 Service Manual page 49

IC2010 TC74VHC157FT (EKJ)
SELECT 11 1 16
V
CC
S
1A 2 1A G 15 STROBE
INPUT
4A
1B 3 1B 4A 14
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
IC3001 TAS5624ADDVR
GVDD_AB 1
VDD 2
OC_ADJ 3
RESET 4
INPUT_A 5
INPUT_B 6
C_START 7
DVDD
DVDD 8
GND 9
GND 10
GND 11
GND 12
AVDD
AVDD 13
INPUT_C 14
INPUT_D 15
FAULT 16
OTW 17
CLIP 18
M1 19
M2 20
M3 21
GVDD_CD 22
IC2011 74LVC1G79GW-125
1
D
INPUT
CP 2
OUTPUT
INPUT
OUTPUT
GND 3
ANALOG
PWM
LOOP FILTER
RECEIVER
PWM
ANALOG
RECEIVER
LOOP FILTER
ANALOG
PWM
LOOP FILTER
RECEIVER
PWM
ANALOG
RECEIVER
LOOP FILTER
STARTUP
CONTROL
C
C
TG
TG
_
_
C
C
C
_
C
+
PWM & TIMING GATE-
CONTROL DRIVE
–
+
PWM & TIMING GATE-
CONTROL DRIVE
–
+
PWM & TIMING GATE-
CONTROL DRIVE
–
+
PWM & TIMING GATE-
CONTROL DRIVE
–
CB3C OVER-LOAD
PROTECTION
TEMP
SENSE
PROTECTION
POWER-UP
&
RESET
I/O LOGIC
UVP
HT-CT770
C
TG
C
_
C
TG
_
C
44 BST_A
43 BST_B
42 GND
41 GND
40 OUT_A
39 OUT_A
38 PVDD_AB
37 PVDD_AB
36 PVDD_AB
35 OUT_B
34 GND
33 GND
32 OUT_C
31 PVDD_CD
30 PVDD_CD
29 PVDD_CD
28 OUT_D
27 OUT_D
26 GND
25 GND
24 BST_C
23 BST_D
BST_X
GVDD_X
AVDD
DVDD
5 VCC
4 Q
49