10-22
4A/125V
P-ON+24V
ALL+3.4/5.3V
C7A3
A3
LIVE
REPLACE FUSE AS MARKED
NEUTRAL
RISK OF FIRE-
R401
R403
R601
R602
R603
R410
R604
R605
R412
R606
R607
R608
JS504
BL-SW
R609
JS505
BL-ADJ.
BL-ADJ.
JS506
JS507
P-ON+12/21V
R610
R611
CN401
R612
R420
R421
R422
R423
R424
R618
R425
CN600
R622
C403
C404
R635
C405
C406
C407
C409
FH600
C601
FH601
C602
C603
C604
C411
C412
C606
C607
C608
C613
C614
R650
C616
C617
C620
D401
D402
D403
D404
D405
Q501
D406
D407
Q505
D601
D602
D603
D410
D604
D605
D412
D606
D413
D607
D608
D415
D609
D610
D614
D615
IC401
D616
D620
IC601
D622
D623
IC603
T601
D630
J601
ERROR
J602
PROTECT3
J603
P-ON+24V
J604
PW-EN
D650
J605
ALL+3.4/5.3V
J606
AMP+24V
D652
J607
P-ON+12/21V
J608
P-ON+12/21V
J609
J611
JS401
J612
JS402
J613
R507
J614
R508
GNDH
J615
J616
J617
J618
J619
JS600
JS601
JS604
J620
JS605
J621
GND
JS606
J622
J623
GNDH
GNDH
R518
J625
GNDH
J626
J627
J628
J629
GNDH
CN501
J630
P-ON-H1
R524
J631
J632
J633
J634
GND
J635
GND
GND
GND
J636
GND
J637
C503
C504
C509
F600
SA600
SA601
SA602
D501
D503
D504
D505
Q601
D508
D512
L600
BC401
L601
IC501
BC601
BC602
BC603
BC604
BC605
COLD
HOT
COLD
COLD
HOT
HOT
BA21P6F0102 1
1
2
3
4
5
Q501A
J610
GND
J624
D506
D513
D510
D416
JS403
BA21P6F01021
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.
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 (F600) 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 4A, 125V fuse.
CAUTION ! :
ATTENTION :
Utiliser un fusible de rechange de même type de 4A, 125V.
4A 125V