Sony MDS-NT1 Service Manual page 49

IC401 BH6519FS-E2
32 31 30 29 28
AMP
INTERFACE
CHARGE
PREDRIVE
PUMP.
OSC
PREDRIVE
AMP
INTERFACE
1 2 3 4 5
– MAIN Board –
IC400 MAX1626ESA-TE2
1.5V
ERROR
COMPARATOR
R2
OUT 1 –
+
R3 R1
3/5 2
+
SHDN 3 REF
REF 4
IC420 M62016FP-E1
3 4 5
R1
COM
INTERRUPT
+
SIGNAL
–
GENERATOR
R2
R3
COM
RESET
+
SIGNAL
–
R4 GENERATOR
7 2
27 26 25 24 23 22
AMP AMP
AMP AMP
6 7 8 9 10 11
MINIMUM ON-TIME
ONE-SHOT
TRIG Q
TRIG Q
MINIMUM OFF-TIME
ONE-SHOT
Q
R S
–
+
– +
CURRENT-SENSE
COMPARATOR
6
8 INT
1 RESET
21 20 19 18 17
AMP V
INTERFACE DD
PREDRIVE
PREDRIVE
AMP
INTERFACE PSB
12 13 14 15 16
8 GND
7 EXT
6 CS
5 V+
MDS-NT1
49