1-8-6
Power Supply Block Diagram
T5515BLP
6
4
2
1
12
11
10
9
7
8
LINE
FIL
TER
BRIDGE
RECTIFIER
T601
IC601
ERR
OR
V
OL
T
A
GE DET
W601
F601
4A/125V
L601
D603 - D606
SWITCHING
Q604
VR601
DEGA
USSING
COIL
CN601
Q601
+B ADJ
.
FEED
BA
CK
LIMITER
Q602
PS601
4
1
3
2
HO
T
COLD
Q606
Q605
Q607
DG601
AL+33V
P-ON+5V
MAIN CB
A
TIMER+5V
P-DO
WN
(T
O PIN84 OF IC201)
P-ON-ON
P-ON+5V
P-ON+5V
P-ON+8V
AL+12V
P-ON+12V
AL+5V
P-ON-H
(T
O PIN31 OF IC201)
+5V REG.
+5V REG.
+5V REG.
+5V REG.
+8V REG.
IC602
Q608
Q611
Q610
Q609
Q612
+5.7V
REGULA
T
OR
IC301
30
27
+B
DEF+B
HOT CIRCUIT. BE CAREFUL.
+5V REG.
Q613
P-ON+5V
4A 125V
“
“ = SMD
NO
TE FOR
WIRE CONNECT
ORS:
1.
PREFIX SYMBOL "CN" MEANS CONNECT
OR.
(CAN DISCONNECT AND RECONNECT
.)
2.
PREFIX SYMBOL "CL" MEANS
WIRE-SOLDER
HOLES OF
THE PCB
.
(WIRE IS SOLDERED DIRECTL
Y
.)
TEST POINT INFORMA
TION
:INDICA
TES A
TEST POINT
WITH A JUMPER
WIRE A
CR
OSS A HOLE IN
THE PCB
.
:USED
T
O INDICA
TE A
TEST POINT
WITH A COMPONENT LEAD ON FOIL SIDE.
:USED
T
O INDICA
TE A
TEST POINT
WITH NO
TEST PIN.
:USED
T
O INDICA
TE A
TEST POINT
WITH A
TEST PIN.
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
For continued protection against risk of fire,
replace only with same type 4 A, 125V fuse.
CAUTION ! :
ATTENTION :
Utiliser un fusible de rechange de m
ê
me type de 4A, 125V.
4A 125V
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
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