Sony HCD-DZ555K Service Manual page 63

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3 7 63 1515 0
– POWER Board –
IC901 STR-F6138-LF1352
TE
L 13942296513
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.
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UVL0
+
OVP
ON=16V
–
OFF=10.5V
TSD
Reg1
IOLP
+
Internal
–
Bias
Volp
Reg3
Current mirror
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i
http://www.xiaoyu163.com
HCD-DZ555K/DZ556KB/DZ750K
2 9
8
Reg2
Delay
Rg1
Delay
Latch
OCP1
+
–
Vocp
INH1
+
–
Boottom Skip Vth1
OSC
Logic
INH2
+
–
OCP2
Vth2
Logic
FB
OCP2
Q Q
3 6 7 1 3 1 5
Vocp(BSIN,OUT)
co
.
9 4 2 8
5 FB/OLP
Vcc
4
Drain
3
POWER
Rg2
MOS FET
Rg3
S/GND
2
OCP/INH
1
0 5 8 2 9 9 4 2 8
m
9 9
9 9
63