Sony HAP-Z1ES, Service Manual

Page: 71 / 120

HAP-Z1ES
71
IC205, 401 PST8429UL
IC1001 TPS2553DBVR
IC701 TB62752AFUG (O, EL)
IC203 TPS54295PWPR
VIN2 16
VBST2 15
SW2 14
PGND2 13
EN2 12
SS2 11
VFB2 10
VREG5 9
VIN1 1
VBST1
SW1
2
3
PGND1 4
EN1 5
SS1
VFB1
6
7
GND 8
VREG5 VREG5
PROTECTION
LOGIC
+
CH1 MIN-OFF
TIMER
+
+
REF2
PGND2
SW2
+
REF_OCL
SW2
SS2
ERR COMP
+
+
+20%
32%
UV UV2
ZC2 ZC1 OCP2 OCP1
OV OV2
CH2 MIN-OFF
TIMER
+
+
+
REF1
PGND1
PGND PGND
VIN1
CONTROL
LOGIC
CONTROL
LOGIC
SW1
+
REF_OCL
XCON XCON
SW1
SS1
UV1
UV2
OV1
OV2
UVLO
TSD
ERR COMP
+
+
+20%
32%
UV UV1
OV OV1
SS1 SS2
EN LOGIC
5V REG
EN LOGIC
SOFT START
REF1
REF2
REF
UVLO
VREG5
GND 1
VDD 2
+
–
VREF
OUT 4
CD 3
OVD 2
VIN 3
SHDN 1
4 SW
5 GND
6 FB
ERROR
AMP
CURRENT
LIMIT
PWM
CONTROL
SHUTDOWN
FUNCTION
OSC
(1.1MHz)
REFERENCE
OVER VOLTAGE
DETECTION
GND 2
EN 3
IN 1
4 FAULT
5 ILLM
6 OUT
CHARGE
PUMP
UNDERVOLTAGE
LOCKOUT
THERMAL
SENSE
CURRENT
LIMIT
4-ms
DEGLITCH
8-ms
DEGLITCH
CURRENT
SENSE
DRIVER
+
–
RREVERSE VOLTAGE
COMPARATOR