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BRIDGE
I
120VAC
RECTIFIER
_
IC405
2._5V
OUTPUT
VOLTAGE
REGULATOR
1613
OPTO-ISOLATOR
52_
IC406
3
ON/OFF
OPTO-ISOLATOR
155VDC
I
4Ol
__
FULL-POWER
REGULATOR
5"IVTC10
_zS
IC401
DUAL
CONTROLLER
T401
FULL-POWER
TRANSFORMER
L,
Ill
t30V
•
15V
•
9V
26V
R416
15
ON/OFF
FOR
12.5W
AMP
4--
12.5V
RUN
SOURCE
_1_
T402
VCC
•
STANDBY
I
8'
7
16"I" R 415
TRANSFORMERI
v I ±56K
,---,
. I ,1IC4O8
2.6v_0 "-" <*"---_1-_
_ i
"'
T I 5v REG
_START
m
Q402
I TA.O I
L
IREGULATORIO I L_I
3.5v,_,o
sZ
R469 --vl
13,5V
8
12V
9
•
15V-STBY
7
3.5V
€
3
1C€02
1
CONTROL
16
12
130V
ADJUST
4V
• UNDERVOLTAGE
3V
• OVERVOLTAGE
• RESET
POWER
• ON/OFF
__1©®
FIGURE 9 - PTV500 POWER SUPPLY BLOCK DIAGRAM
37
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