Read Sony STR-DA3700ES Service Manual online
STR-DA3700ES
112
– ACDC Board –
IC921 STR-Y6763
IC921 STR-Y6763
D/ST 1
S/OCP 2
VCC 3
GND 4
BD 6
FB/OLP 5
STARTUP
LOGIC
DRIVER
LATCH
OVERCURRENT
PROTECTION/
BOTTOM-SKIP
BOTTOM-SKIP
UNDER VOLTAGE
LOCK OUT/
REGULATOR/
CONSTANT CURRENT
FEEDBACK/
STANDBY
OVERLOAD
PROTECTION
BOTTOM
DETECTION
NF 7
OSCILLAOTR
– DCDC Board –
IC1401, 1402, 1404 - 1406 TPS54331DR
IC1401, 1402, 1404 - 1406 TPS54331DR
EN 3
VIN 2
BOOT 1
7 GND
8 PH
5 VSENSE
SHUTDOWN
LOGIC
BOOT
CHARGE
THERMAL
SHUTDOWN
SS 4
ENABLE THRESHOLD
ENABLE
COMPARATOR
+
+
–
6 COMP
MAXIMUM
CLAMP
FREQUENCY
SHIFT
GATE
DRIVE
LOGIC
LOGIC
BOOT
UNDERVOLTAGE
LOCKOUT
OSCILLATOR
SLOPE
COMPENSATION
ECO-MODE
MAXIMUM CLAMP
DISCHARGE
LOGIC
VOLTAGE
REFERENCE
PWM
COMPARATOR
PWM
LATCH
6
Q R
S
12 A/V
CURRENT
SENSE
ERROR
AMPLIFIER
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