Philips MAGNAVOX 20MC4304 Service Manual page 140

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BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER
SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED.
ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT
SLOWLY, WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY
CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
WF19
TP001
DVD-AUDIO-L
WF6
JM403
ENV.
WF4
PIN 32
OF IC401
WF2
PIN 49
OF IC401
WF8
PIN 9
OF IC401
WF7
PIN 10
OF IC401
F2601 is a misprint.
This is F601.
1-12-25
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
4A 125V
MÊME TYPE DE 4A, 125V.
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.
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
WF3
WF1
TP202
TP402
CTL-AMP-OUT RF-SW
1-12-26 BT1000F01011