10-16
Power Supply CBA Top View
Because a hot chassis ground is present in the power supply
circuit, an isolation transformer must be used when repairing.
Also, in order to have the ability to increase the input slowly,
when troubleshooting this type of power supply circuit,
a variable isolation transformer is required.
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F602) 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 2.5A, 250V fuse.
CAUTION ! :
ATTENTION :
Utiliser un fusible de rechange de même type de 2.5A, 250V.
2.5A 250V
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
CN601
J1437
ZCDB
J1438
PRI-GND
J1439
ZCDA
J1440
J1442
VSENSE
C604
GP003
F602
SA601
BAA7U1F0102 1
CAUTION -
RISK OF FIRE -
REPLACE FUSE AS MARKED
T 2.5A L/250V
LIVE
NEUTRAL
1
BC
R601
C614
D603
D604
BC1602
T1602
L602
D607
D1603
R1624
C1612
J1447
D605-Cathode
C616
C620
D601
D602
D605
D606
GP004
L601
C999
A
R618
C602
J1452
IS
J1453
FB
J1455
OUT
J1457
VH
J1458
PFC-GND
J1459
Drive
J1460
D610-Cathode
C1618
C1702
J1432
PFC-VOUT
J1445
T1701-4
T1701-2
J1446
C605
C618
T1701
J1487
PFC-VOUT
J1489
PFC-VOUT
C1602
BC1601
D1605
J1400
C1703
C1704
J1434
HVSEN
J1435
VSENSE
GDB
J1443
GDB
T1601
C1701
2
T1702
J1483
GND
D1005
D1006
D1007
D1008
IC1602
3
J1450
GND
J1475
N1
J1476
N2
J1484
Vcc
C1014
C606
J1456
PFC-GND
C619
T601
D655
D664
Q601
BC602
HOT
COLD
C615
D621
IC602
J1461
P-ON+20V
J1464
D655-Cathode
C654
C658
D652
J1465
J1488
J1490
GND
GP001
TOOL No.
1 2 3 4 5 6
J1463
IS
ALL+3.3V
J1471
P-ON+20V
J1473
P-ON+20V
CN651
J1481
BL-ADJ
P-ON-H2
C655
C656
C657
C664
C1002
D651
J1451
GND
J1462
Protect3
J1472
VLED2
J1477
BL-SW
J1479
OVP
J1482
P-ON-H2
CN1001
C1015
C1019
GP002
5
C1016
C1020
4
J1436
ZCDB
J1441
PFC-GND
J1444
Vcc
J1470
ALL+3.3V
J1480
BL-ADJ
J1433
PFC-VOUT
C1622
C1621
J1466
P-ON+20V
J1467
P-ON+20V
J1468
P-ON+20V
J1469
P-ON+20V
J1486
PFC-GND
Vcc
Base
J1454
Q1607
BOND
BOND
BAA7U1F01021