Read Sony HCD-E300HD / NAS-E300HD Service Manual online
HCD-E300HD
HCD-E300HD
20
20
5-4. BLOCK DIAGRAM - POWER SUPPLY Section -
F
P MONI
PROTECT
SWITCH
Q802
PROTECT
DETECT
Q908
D918
D926
D927
POWER CONTROL
IC02
D13
D06
+3.3V
(AC IN)
F01
LINE FILTER
T01
RECT
D01
TH01
D923
D924
D920
15 VS
18 VD
1 VSENSE
2 F/B
16 VG (H)
12 VG (L)
8 VC1
POWER CONTROL
IC01
5 DRAIN
2 FB
4 VCC
ISOLATOR
PC04
ISOLATOR
PC03
ISOLATOR
PC01
T03
MAIN POWER
TRANSFORMER
T02
SUB POWER
TRANSFORMER
RECT
D808
IC803 +3.3V
POWER
ON/OFF
ON/OFF
CONTROL
SWITCH
Q901
SWITCHING
Q02
SWITCHING
Q01
SHUNT
REGULATOR
IC901
RECT
D902
REGULATOR
IC905
M901
(FAN)
+8V
REGULATOR
IC902
POWER_ON
Q03
9 OCP
D904
AC DETECT
Q803, 804
M
M
+12V
+8V
AMP_VCC
+5V
HDD_12V_CONT
CD-PO
DISPLAY +3.3V
+3.3V
REGULATOR
IC404
CD D +3.3V
CD A +3.3V
RECT
D807
AC_DET
GENESIS AC DET
C
+3.3V
REGULATOR
IC982
+3.3V
REGULATOR
IC981
+12V
REGULATOR
IC907
REGULATOR
CONTROL
Q907, 909
+5V
REGULATOR
IC906
+5V
REGULATOR
IC904
+9V
+9V
REGULATOR
IC908
RECT
D903
D925
D931
D912
D905
D928
D906
D914, 929
D919
VOLTAGE
SELECTOR
S01
(Chilean, Peruvian)
DAB_1.2V
DAB_3.3V
DAB_3.3V
DAB +3.3V
DAB +1.2V
+3.3V
REGULATOR
IC651
+5V
REGULATOR
IC653
+1.2V
REGULATOR
IC652
(UK)
DM_EN
DM_PROTECT
DMP +5V
+5V
REGULATOR
IC970
(Page 17)
(Page 18)
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