Sony STR-DA2800ES Service Manual page 128

STR-DA2800ES
IC307, 308 TPS54325PWPR
VREG5
-30%
VO 1
+20%
REF
VFB 2
VREG5 3
SS 4 SOFT START
GND 5
PG 6
EN
EN 7
LOGIC
IC601 BD00GC0WEFJ-SE2
IC602 BD00GA5WEFJ-E2
8 7 6 5
OCP
SOFT
TSD
2
1 3 4
IC605 TPS54425PWPR
–35% +
UV
–
+
OV
+20% –
VO 1
VFB 2
VCC
VREG5
VREG5 3
UVLO
SOFT
SS 4 SS
START
REF
GND 5
PG 6
OCP
EN
EN 7
LOGIC
128
REF REF
VREG5
UV
UVLO
PROTECTION
OV
LOGIC
TSD
PWM
+
+ CONTROL
LOGIC
REF
-10%
OCP
REF
+
SS
+ PWM
–
CONTROL
LOGIC
1 SHOT
REF
+
+ REF
ZC
–
– –10%
+
OCP
–
14 VCC
VREG5
13 VIN
12 VBST
11 SW2
10 SW1
XCON
VREG5
9 PGND2
8 PGND1
14 VIN2
VREG5
13 VIN1
12 VBST
11 SW2
10 SW1
XCON
VREG5
9 PGND2
8 PGND1
SW
UV
PGND
OV
PROTECTION
LOGIC
UVLO
SW
TSD
PGND