Emerson LC320EM1 Service Manual page 65

Power Supply CBA & Jack CBA Bottom 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.
Power Supply CBA
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) 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.
10-23
CAUTION ! : For continued protection against risk of fire,
replace only with same type 4 A, 125V fuse.
4A/125V
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
Jack CBA
WF1 WF1
PIN 4 OF PIN 4 OF
CN302 CN302
WF3 WF3
PIN 6 OF PIN 6 OF
CN302 CN302
WF2
PIN 8 OF
CN302
WF7
PIN 13 OF
CN302
WF4
PIN 15 OF
CN302
WF5
PIN 17 OF
CN302
WF6
PIN 19 OF
CN302
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