Grundig COREMAX M1 PROJECT GM, Service Manual

Page: 71 / 98

71 ENGLISH
OPERATING PRINCIPLES OF THE CIRCUIT COMPONENTS
IC100 Current-limited power dis-
tribution switch
(IC-SMD XC8107AC-
10MR-GW)
IC100, is the DC-DC converter through which
MAIN3V3 is obtained from STBC3V3. Output
of this IC is active when TV is in stand-by.
When IC output is faulty, chassis does not carry
out any operations. Led is not lit. No log is re-
ceived.
IC105 DC-DC converter
(IC-SMD
XC8107AC10MR-GW)
IC105, is the DC-DC converter through which
12V_PANEL is obtained from VCC. It helps
keep the output stable for 12 V Panel based on
the changing values of VCC.
IC1000 LED Backlight Driver inte-
grated circuit
(IC-SMD AP3064FNTR-
G1 )
IC1000 integrated circuit is on the chassis on
24" LUNA and 32" cabins. There is no separate
LED Driver board. It is supplied through direct
PSU supply.
IC201 System reset integrated circuit
(IC-SMD
APX812-29UG-7)
With IC201 integrated circuit, System-RST signal
is sent to the main integrated circuit and the
system is reset when STBC3V3 voltage drops
below 2.93 V.