Sylvania 6615LE, Руководство по обслуживанию

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6-5
Power Supply Block Diagram
L0201BLP
4A/125V
F601 4A/125V
LINE FIL
TER
L601
A
C
601
A
C
CORD
BRIDGE RECTIFIER
D605 - D608
HO
T
COLD
T601
12
9
10 11
8 7
6
4 3
1 2
IC601 ERR
OR
V
O
LT
A
G
E DET
Q601
Q603
LIMITER
SWITCHING
MAIN CB
A
NO
TE :
The v
oltage f
or par
ts in hot circuit is measured using
hot GND as a common ter
minal.
CN101A
CN101B
Q505
Q504
Q503
Q506
Q510
HOT CIRCUIT. BE CAREFUL.
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 4 A, 125V FUSE.
CAUTION: ATTENTION:
UTILISER UN FUSIBLE DE RECHANGE DE MÊME 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.
4 2 1
P
ANEL+25V
73
P
ANEL+10.8V
55
P
ANEL-6V
37
AL+5V
91 P
ANEL+3.3V
19
P
ANEL+25V
P
ANEL+10.8V
P
ANEL-6V
AL+5V P
ANEL+3.3V
Q511
Q502
Q501
+1.8V REGULATOR
IC503
+3.3V REGULATOR
IC504
RESET
IC505
REG+5V P-ON+3.3V(D) P-ON+1.8V(D) PR
O
TECT
-1
P-ON+3.3V(A) AL+33V AL+12V P-ON-H P-ON-L
Q508
Q513
Q512 Q507
Q633
IC603
+5V REGULATOR
IC502
+3.3V REGULATOR
LCD MAIN CB
A UNIT
D649
PR
O
TECT
-2
T
O
SYSTEM
CONT
OR
OL
BLOCK DIA
GRAM
T
O
SYSTEM
CONT
OR
OL
BLOCK DIA
GRAM