Sony SA-CT780 Service Manual page 52

HT-CT780
IC503 TAS5624ADDVR
GVDD_AB 1
VDD 2
OC_ADJ 3
RESET 4
PWM
INPUT_A 5
RECEIVER
PWM
INPUT_B 6
RECEIVER
C_START 7
DVDD
DVDD 8
GND 9
GND 10
GND 11
GND 12
AVDD
AVDD 13
PWM
INPUT_C 14
RECEIVER
PWM
INPUT_D 15
RECEIVER
FAULT 16
OTW 17
CLIP 18
M1 19
M2 20
M3 21
GVDD_CD 22
IC603 TPS542941PWPR
VREG5
VIN1 1
VBST1 2
XCON
SW1
3
PGND1 4
ZC1
PGND1 REF_OCL
+
SW1
EN1 5 EN LOGIC
PG1 6
PG COMP
16%
PGND
+
+
+16%
32%
+
UV UV1
EN LOGIC
ERR COMP
REF1
+
+
SS1
VFB1 7
PGND
GND 8
52
+
ANALOG PWM & TIMING
LOOP FILTER – CONTROL
+
ANALOG PWM & TIMING
LOOP FILTER – CONTROL
+
ANALOG PWM & TIMING
LOOP FILTER CONTROL
–
+
ANALOG PWM & TIMING
LOOP FILTER CONTROL
–
STARTUP
CONTROL
PROTECTION
&
I/O LOGIC
CONTROL CONTROL
LOGIC LOGIC
CH1 MIN-OFF CH2 MIN-OFF
TIMER TIMER
OCP1 OCP2
REF_OCL
+ +
SW1 SW2
FIXED UV1
SOFT START
UV2
PROTECTION
LOGIC
UVLO
TSD
SS1 SS2
REF1
REF
REF2
5V REG
VREG5
UVLO
44 BST_A
43 BST_B
42 GND
41 GND
40 OUT_A
GATE-
DRIVE 39 OUT_A
38 PVDD_AB
37 PVDD_AB
36 PVDD_AB
GATE-
35 OUT_B
DRIVE
34 GND
33 GND
GATE-
32 OUT_C
DRIVE
31 PVDD_CD
30 PVDD_CD
29 PVDD_CD
28 OUT_D
GATE-
DRIVE
27 OUT_D
26 GND
25 GND
24 BST_C
23 BST_D
CB3C OVER-LOAD
PROTECTION
TEMP
SENSE
POWER-UP
RESET
BST_X
GVDD_X
UVP
AVDD
DVDD
VREG5
16 VIN2
15 VBST2
XCON
14 SW2
13 PGND2
ZC2
PGND2
+
SW2
12 EN2
11 PG2
PG COMP
16%
PGND
+
+
+16%
32%
+
UV2 UV
ERR COMP
REF2
+
+
SS2
10 VFB2
PGND
VIN1
9 VREG5