Magnavox DV225MG9 Service Manual page 57

Main CBA Bottom View
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F1001) 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.
CAUTION !
F
For continued protection against fire hazard,
replace only with the same type fuse.
A V
ATTENTION : Pour une protection continue les risqes
d'Incele n'utiliser que des fusible de même type.
Risk of fire-replace fuse as marked.
"This symbol means fast operating fuse."
"Ce symbole reprèsente un fusible à fusion rapide."
WF9 WF8 WF5
WF8 WF7 WF5
WF7
PIN 10 OF
PIN 16 OF PIN 14 OF PIN 12 OF
CN1601 CN1601 CN1601 CN1601
1-13-15
Because a hot chassis ground is present in the power
supply circut, 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.
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
WF6
WF4 WF6
WF4
PIN 8 OF PIN 2 OF
IC751
CN1601
BE8E00F01014A