BA21N0F0102-1
Used ICs: HA7209PC (LED back-light Driver) – TK5A500 (SMPS
SWITCHING FET)
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.
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.
For continued protection against risk of fire, replace only with
same type 4A, 125V fuse.
The voltage for parts in hot circuit is measured using hot GND as
a common terminal.
Voltage indications on the schematics are
Plug the TV power cord into a standard AC outlet.
COMPONENT SIDE
FOIL SIDE
SCHEMATIC (SMPS & Back-light Driver)
* Do not use the part number shown on these drawings for ordering.
The correct part number is shown in the parts list, and may be slightly different
or amended.
* All resistance values are indicated in ohms (K = 103, M = 106).
* Resistor wattages are 1/4W or 1/6W unless otherwise specified.
* All capacitance values are indicated in uF (P = 10-6 uF).
* All voltages are DC voltages unless otherwise specified.
* This schematic diagrams are masterized version that should cover the entire FL12.1 chassis models. Thus some parts in detail illustrated on this schematic diagrams may vary depend on the model within the FL12.1 chassis.
* The Circuit Board layout illustrated on this service manual is the latest version for this chassis.
* All resistance values are indicated in ohms (K = 103, M = 106).
* Resistor wattages are 1/4W or 1/6W unless otherwise specified.
* All capacitance values are indicated in uF (P = 10-6 uF).
* All voltages are DC voltages unless otherwise specified.
* This schematic diagrams are masterized version that should cover the entire FL12.1 chassis models. Thus some parts in detail illustrated on this schematic diagrams may vary depend on the model within the FL12.1 chassis.
* The Circuit Board layout illustrated on this service manual is the latest version for this chassis.
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