Read Sony BMZ-K2 / CX-BK2 Service Manual online
CX-BK2
30
30
+7V
REGULATOR
IC001
POWER TRANSFORMER
(SUB)
PT006
POWER TRANSFORMER
(MAIN)
PT001
RECT
D002
D002
RY001
VL
VL
RECT
D004
D004
RECT
D120, 121
RECT
D114, 115
RECT
D116, 117
VSTBY
D612
+12V
VH
VH
RECT
D007 – 010
REG
– VL
REG
+VL
– VH
+VH
+3.3V
REGULATOR
Q018, 019
+9V
REGULATOR
Q890
DC UNBALANCE
DETECT
D112, 113
+12V
REGULATOR
IC003
REGULATOR
CONTROL
Q891, 892
REG
B+ SWITCH
Q901, 906
RELAY DRIVE
Q101
RECT
D005, 006
+4V
REGULATOR
IC905
VDD
D906
EVER 3.3V
D902
RESET SIGNAL
GENERATOR
IC902
VOLTAGE
DETECT
IC904
B+ SWITCH
Q024, 025
B+ SWITCH
Q700, 701
AC DETECT
Q105, 106
D002
FR VDD (3.3V)
+2.5V
REGULATOR
IC121
SERVO
+2.5V
TU 9V
+10V
REGULATOR
IC101
+9V
REGULATOR
Q050, 051
VOLTAGE
DETECT
Q107 – 109
OVER CURRENT
DETECT
Q102 – 104
+5V
REGULATOR
IC701
VM 10V
USB 5V
VCC 9V
POWER
POWER MONITOR
CD VM (7V),
+7V
M+12V,
VM, +12V
VDD (3.3V)
POWER_DOWN
CD ON
TUNER ON
USB ON
RESET
(AC IN)
FAN B+
+VL
– VL
DC UNBALANCE
DETECT
D139, 140
+VH
– VH
+
+
+
THERMAL DETECT
G
(Page 29)
POWER,
POWER MONITOR
POWER MONITOR
H
(Page 29)
USB ON,
TUNER ON, CD ON
TUNER ON, CD ON
F
(Page 28)
POWER_DOWN,
RESET
RESET
J
(Page 29)
7-4.
BLOCK DIAGRAM – POWER SUPPLY Section –
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