Service manual

1-9-4
E5943BLP
Power Supply Block Diagram
IC1006
(SHUNT REGULATOR)
REG
AC1001 AC CORD
F1001
LINE
FILTER
L1001
D1001, D1002 D1004, D1005
Q1003
2 4 7
3 4
IC1001
ERROR VOLTAGE DET
T1001
11 12 13 15 14 16 17 18
SWITCHING
SWITCHING
CONTROL
1 2
6
BRIDGE
RECTIFIER
HOT
HOT CIRCUIT. BE CAREFUL.
D1003
RECTIFIER
D1030
RECTIFIER
D1016
RECTIFIER
Q1016
Q1005
Q1011
Q1015
Q1002
CN1001
Q1004
-FL EV+5V F1 P-ON+10V EV+3.3V P-ON+5V P-ON+3.3V
1,2
EV+1.2V
3,4,5
EV+3.3V
8,9
EV+11V
7
P-ON+5V
6
P-ON+3.3V
17
PWRCON
+1.2V
REG.
IC1002
D1006
SCHOTTKY BARRIER SCHOTTKY BARRIER
D1008
F2
AV CBA
TO CN401
Q1008
LATCH
Q1001
DV-SL80
NOTE :
The voltage for parts in hot circuit is measured using hot GND as a common terminal.
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.
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE.
T1.6A L 250V