1-9-4
TD300BLP
F1601
4A/125V
LINE
FIL
TER
L1601
W1601
A
C
CORD
DEGA
USSING
COIL
DG601
CN1601
PS1601
BRIDGE
RECTIFIER
D1603 - D1606
HO
T
COLD
T1601
1
4
6
7
16
12
15
13
14
11
9
4
3
IC1601
ERR
OR
V
O
LT
A
GE DET
Q1601
Q1602
LIMITER
SWITCHING
Q1604
Q1625
VR1601
+B ADJ
MAIN CB
A
10
HOT CIRCUIT. BE CAREFUL.
1
2
FEED
BA
CK
P-ON+12V
P-ON+9V
P-ON+5V
D
VD-ON+12V
+5V
SWITCHING
Q1614
+9V
SWITCHING
Q1613
+3.3V
SWITCHING
Q1619
+5V
SWITCHING
Q1608
SWITCHING
Q1606
Q1607
+12V
SWITCHING
Q1611
Q1610
Q1612
+5V
SWITCHING
Q1609
Q1616
+1.5V
REGULA
T
OR
IC1602
D
V
D-MAIN-PO
WER
(T
O PIN77 OF IC1201)
AL+5V
P-DO
W
N
+3.3V
REGULA
T
O
R
IC1603
SHUNT
REGULA
T
O
R
IC1604
A
U
DIO+5V
T
O
DC PO
WER
SUPPL
Y BLOCK
DIA
G
RAM
CN901A
T
O
VIDEO
/SYSTEM CONTR
OL
BLOCK DIA
G
RAM
+B
T
O
CR
T/H.V
.
BLOCK DIA
G
RAM
DEF+B
CN1604
9
E
V+4V
6
P-ON+12V
11
P-ON+9V(2)
8
D
C+13.2V
13
DEF+B
16
+B
17
+B
4A 125V
+5V
-CTRL
(T
O PIN28 OF IC1201)
P-ON-H
(T
O PIN78 OF IC1201)
TO
D
C
PO
WER SUPPL
Y
BLOCK
DIA
GRAM
CN901A
CN1604
1
D
VD-MAIN-PO
WER
3
AL+9V
1
P-ON-H
TO
D
C
PO
WER SUPPL
Y
BLOCK
DIA
GRAM
CN503
D
VD MAIN CB
A UNIT
CN401
EV+1.2V
D
V
D-ON+5V
AL+9V
D
V
D-ON+3.3V
EV+1.2V
12
2
EV+1.2V
22
1
EV+1.2V
32
0
EV+3.3V
41
9
EV+3.3V
51
8
D
V
D-ON+5V
13
10
AL+9V
14
9
AL+9V
15
8
D
V
D-ON+3.3V
17
6
EV+3.3V
CN2603B
DVD JUNCTION
CBA
CN2603A
9
8
6
4
3
5
7
2
1
9
8
6
4
3
5
7
2
1
CN1603
PWRCON
19
4
17
17
T
O
D
V
D SYSTEM
CONTR
O
L BLOCK
DIA
G
RAM
<D
VD SECTION>
PWRCON
Q1605
CN1302
Q1620
Power Supply Block Diagram
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F1601) 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.
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
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.