DV-S15 (serv.man12). Printed wiring board - Sharp DVD Service Manual (repair manual). Page 4

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WF1
PIN 8 OF
CN1601
WF2
PIN 10 OF
CN1601
WF3
PIN 12 OF
CN1601
WF4
PIN 16 OF
CN1601
WF5
PIN 18 OF
CN1601
WF6
PIN 21 OF
CN1601
1-10-27
1-10-28
AV CBA Bottom View
BE56A3F01017A
CAUTION !
Switching 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.
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.
NOTE :
THE VOLTAGE FOR PARTS IN HOT CIRCUIT IS MEASURED USING
HOT GND AS A COMMON TERMINAL.
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE FUSE.
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