Emerson 39" Service Manual page 54

Power Supply CBA Top View
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.
UVLO1
J148
J93 ILED2
J171
GND
GND
J113
J111
J92 ILED3
J90
VLED1
VLED3
J99 VLED3
CN1001 6
1
2.5A 250V
J86
ALL-3.3V
C663
J85
P-ON-H2
C662
J97
GND
GND
J98
GATE3
J162
J87 AMP+13V
AMP+13V
J157
GND J88
D654
J163
PROTECT3
J100
GND
J142
J117
GND
J118
GND
J124
GND
CAUTION ! : For continued protection against risk of fire,
replace only with same type 2.5A, 250V fuse.
ATTENTION : Utiliser un fusible de rechange de même type de 2.5A, 250V.
CN501
C617
J79
J141 AMP+13V
BL-ADJ
J80 P-ON+21V
J153
PROTECT3
J156
BL-SW
J76
GND
J119
LED-CONT
J81
GND
J77 GND
Q657
C656
J74
AMP+13V
GND
J75
J120
GND
D653
C602
J121 P-ON+21V
J71 P-ON+21V
T601
J78 GND
J95 AMP+13V
C616
IC602
IC601
FB
J96
10-18
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.
JS606
JS605
NEUTRAL
C604
LIVE
F602
T 2.5A L/250V
C611
D664
BC602
BC601
C605
BC604
D607
Q601
J133
R611
J130
D608
CN601
BC603
BA3AT0F01022