Emerson EWV401B Service Manual page 33

Main CBA Top View
CAUTION !
Fixed voltage power supply circuit is used in this unit.
If Main Fuse (F001) 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.
J177
GND
WF5
TP301
C-PB
WF2
TP302
RF-SW
TP303
CTL
VR501
SW-P
1-9-23
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE FUSE.
F
ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES
D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE.
A V
RISK OF FIRE-REPLACE FUSE AS MARKED.
"This symbol means fast operating fuse."
"Ce symbole reprèsente un fusible à fusion rapide."
WF1
TP751
V-OUT
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.
Sensor CBA Top View
BHB300F01011-A
BHB300F01011-B
1-9-24
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
NOTE :
Either BHB400F01016, BHB400F01017
is used for the Main CBA in this S/M.
TP502A
S-INH
1-9-25 BHB400F01017-A