Hitachi DV-PF7E Wartungshandbuch Seite 114

NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
HOT CIRCUIT. BE CAREFUL.
F1001
L1003 D001 - D004
AC1001
T1.6A L 250V
LINE BRIDGE
RECTIFIER
FILTER
Q1003
Q1008
HOT
POWER SUPPLY CBA
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE T1.6A L 250V FUSE.
T0011
20
2
19
4 18
17
Q1001
16
15
14
7 13
12
8 11
IC1001
ERROR
Q1004
VOLTAGE DET
4 1
3 2
COLD
CAUTION !
Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F1001) 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.
CL051A CL051B CN051A CN051
1 AL+44V 1 1 1
3
3 AL+12V 3 3
5 AL+5V(P-DOWN) 5 5 5
6 AL+5V 6
6 6
8 AL+20.5V 8 8 8
10 10
12 12
14 14
18 18
17 17
CL052A CL052B
1 AL-30V 1
3 AL+2.8V 3
5 AL+4V 5
9 F1 9
8 F2 8
JUNCTION
CBA
Q053,Q054
SW+44V P-ON+44V
P-ON+15V
P-ON-H
<FROM PIN 67 OF IC501>
AL+12V
Q055
SW+9V AL+9V
AL+5V
Q056
SW+5V P-ON+5V
Q058
SW+5V TIMER+5V
Q057
Q059
P-DOWN-L
Q051,Q052 <TO PIN 86 OF IC501>
SW+20.5V AL+20.5V/+12V
C-POW-SW
<FROM PIN 66 OF IC501>
AL-30V
IC1002
+1.2V REG.
IC1003
+3.3V REG.
Q1055
SW+5V
Q1052
SW+3.3V
DVD P-ON+5V
DVD P-ON+3.3V
-FL
Q1053,
EV+3.3V
Q1054
SW+12V DVD P-ON+12V
F1
F2
MAIN CBA
CL1051
1 EV+1.2V
2 EV+1.2V
3 EV+3.3V
4 EV+3.3V
5 EV+3.3V
7 P-ON+5V
8 EV+11V
9 EV+11V
6 P-ON+3.3V
17 PWRCON