Read Sony BMZ-K1 / CX-BK1 Service Manual online
CX-BK1
34
34
8-4.
BLOCK DIAGRAM – POWER SUPPLY Section –
+7V
REGULATOR
IC001
POWER TRANSFORMER
(SUB)
PT005 (Chilean, Peruvian)
PT006 (EXCEPT Chilean, Peruvian)
POWER TRANSFORMER
(MAIN)
PT001 (Mexican)
PT002 (Chilean, Peruvian)
PT003 (US, AEP, UK)
RECT
D002
D002
RY502
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)
120V
220 – 230V
240V
(Chilean, Peruvian)
EXCEPT
Chilean, Peruvian
VLOTAGE SELECTOR
S001
FAN B+
+VL
– VL
DC UNBALANCE
DETECT
D139, 140
+VH
– VH
+
+
+
THERMAL DETECT
G
(Page 33)
POWER,
POWER MONITOR
POWER MONITOR
H
(Page 33)
USB ON,
TUNER ON, CD ON
TUNER ON, CD ON
F
(Page 32)
POWER_DOWN,
RESET
RESET
J
(Page 33)
(US, Chilean, Peruvian, Mexican)
(US)
(EXCEPT US)
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