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CAUTION !
NOTE : CAUTION Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit.
The voltage for parts in hot circuit is measured using FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, If Main Fuse (F1001) is blown, check to see that all components in the power supply
hot GND as a common terminal. REPLACE ONLY WITH THE SAME TYPE T1.6AL/250V FUSE. 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.
Q053,Q054
SW+44V P-ON+44V
P-ON+15V
T0011
F1001 L1003 D1001 - D1004
AC1001
T1.6AL/250V CL051A CL051B CN051A CN051 P-ON-H
LINE BRIDGE 2 20 1 AL+44V 1 1 1
FILTER RECTIFIER 3 AL+12V 3 3 3 AL+12V
5 AL+5V(P-DOWN) 5 5 5
19 6 AL+5V 6 6 6
Q055
8 AL+20.5V 8 8 8
SW+9V AL+9V
10 10
4 18 12 12
14 14 AL+5V
Q056
18 18
SW+5V P-ON+5V
17 17 17
Q058
Q1001 SW+5V TIMER+5V
Power Supply Block Diagram
16
Q057
Q059
15
Q1003
P-DOWN-L
14 Q051,Q052
SW+20.5V AL+20.5V/+12V
1-11-5
C-POW-SW
7 13
CL052A CL052B
1 AL-30V 1 AL-30V
12 3 AL+2.8V 3 IC1002 CL1051
5 AL+4V 5 +1.2V REG. 1 EV+1.2V
9 F1 9 2 EV+1.2V
8 11 8 F2 8 IC1003 3 EV+3.3V
+3.3V REG. 4 EV+3.3V
Q1055 5 EV+3.3V
SW+5V 7 P-ON+5V
IC1001 JUNCTION
ERROR 8 EV+11V
CBA
VOLTAGE DET Q1004 Q1052 9 EV+11V
SW+3.3V 6 P-ON+3.3V
4 1 17 PWRCON
Q1008
DVD P-ON+5V
3 2
DVD P-ON+3.3V
-FL
Q1053,
HOT Q1054 EV+3.3V
SW+12V DVD P-ON+12V
F1
F2
POWER SUPPLY CBA
COLD MAIN CBA
H9770BLP