Sony HCD-U1BT Service Manual page 56

HCD-U1BT
QQ
3 7 63 1515 0
– PANEL Board –
TE
L 13942296513
– USB Board –
www
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56
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IC304 SN74LV123ANSR
_
1A 1
1B 2
1CLR 3
_
1Q 4
2Q 5
2CEXT
6 R
2REXT/CEXT 7
GND 8
IC1 R5520H001A-T1-FB
GATE
EN 1
CONTROL
UVLO
GND 2
THERMAL
SHUTDOWN
FLG 3
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2 9
8
Vcc
16
15 1REXT/CEXT
R
14 1CEXT
13 1Q
_
12 2Q
11 2CLR
10 2B
_
2A
9
Q Q
3 6 7 1 3 1 5
CURRENT
LIMIT
5
OUT
FLAG
DELAY
4 IN
co
.
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9