3-17
BVW-55
3-17
RE-174
Block diagram
Block diagram
RE-174
SWITCHING REGULATOR
RE-174
LOT NO. 812-
CN2
1-3
DC-97,W1-W3
IC31-36
UNSW 12V
IC21-26
CN900
44
EX DET
6
SEL BATT
CN2
5
POWER
CONTROL
DETECT
VOLTAGE
REG
5V-2
BATT
1-3
CN-1662,4-1to3
CN1
+B
POWER SW
CN900
100
IC8,12,13,16
DETECT
VOLTAGE
SELECT
PATH
POWER
IC10
OVER
CURRENT
DETECT
R38-40
CONTROL
POWER
Q3
VOLTAGE
DETECTOR
IC20
IC9
POWER
ON
RESET
IC900,903,904
99
CN900
POWER ON RESET
EXT
INT
IC1
PWM
POWER
CONTROLLER
IC4(2/2)
VOLTAGE
REF
IC6
Q9
+6.0V-1 DR
+6.0V-1 FB
DRIVER
SWITCHING
Q101-104,IC101
FILTER
LC
L103,104,C108
45-50
CN900
75-80
CN900
REG +6.0V-1
6V
L203,C208
LC
FILTER
-6.0V FB
IC5(2/2)
CONTROLLER
POWER
PWM
-6.0V DR
Q202-204,IC201
SWITCHING
DRIVER
REG -6.0V
19-22
CN900
L303,304,C308
LC
FILTER
+6.0V-2 FB
IC4(1/2)
CONTROLLER
POWER
PWM
+6.0V-2 DR
Q301-304,IC301
SWITCHING
DRIVER
REG +6.0V-2
51-58
CN900
L403,C408
LC
FILTER
+8.0V FB
IC7(1/2)
CONTROLLER
POWER
PWM
+8.0V DR
Q402,403,IC401
SWITCHING
DRIVER
REG +8.0V
67-74
CN900
L353,C358
LC
FILTER
+3.3V FB
IC7(2/2)
CONTROLLER
POWER
PWM
+3.3V DR
Q351-354,IC351
SWITCHING
DRIVER
REG +3.3V
59-66
CN900
L503,504,C508
LC
FILTER
+5.0V-1 FB
IC5(1/2)
CONTROLLER
POWER
PWM
+5.0V-1 DR
Q501-504,IC501
SWITCHING
DRIVER
REG +5.0V-1
5V
29-34
CN900
L553,554,C558
LC
FILTER
+5.0V-2 FB
IC3(1/2)
CONTROLLER
POWER
PWM
+5.0V-2 DR
Q551-554,IC551
SWITCHING
DRIVER
REG +5.0V-2
35-40
CN900
L603,C608
LC
FILTER
-5.0 FB
IC3(2/2)
CONTROLLER
POWER
PWM
-5.0V DR
Q601-604,IC601
REG -5.0V
23-26
CN900
R706,707,C705
RC
FILTER
+48 FB
IC2(1/2)
CONTROLLER
POWER
PWM
+48V DR
Q701-704
SWITCHING
DRIVER
P48.0V
16
CN900
UNREG +12.0V
SWITCHING
DRIVER
CP-316,600-2
PSW-63,1-1
SY-272,41-61
IC20
CN11
CN21
CN31
CN41
CN51
CN61
CN71
CN81
CN91
CN101
CN401
CN901
CN201
CN702
CN600
+12V
(UNREG)
+3.3V
+5V-1
+5V-2
-5V
+6V-1
+6V-2
-6V
+8V
AUDIO
GND
+12V
(REG)
CN8
CN601
CP-317
CP-316
AU-262
AFM-16
APR-42
SY-272
TG-191
SDI-23
DEC-97
DM-121
MD-122
CN-1779
SV-206
RP-107
VPR-59
HP-88
IN USE
NOT IN USE
IN USE(INOPERATIVE)
(REG)
-12V
See Table
AFM-16,21-21,22
APR-42,31-21,22
AU-262,11-21,22
Summary of Contents for BVW-55
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