1-22 (No.MB713<Rev.002>)
5.2
Front circuit
Reconnect it.
NO
YES
YES
YES
NO
NO
Refer to SMPS part.
NO
YES
NO
YES
NO
Check pattern and resoldering
NO
YES
YES
Power on.
Front B/D ok.
*1 : PN106 Pins.
PIN1 : -34 VKK
PIN2 : -28 FL+
PIN3 : -32 FL-
PIN12 : +5.6VA
PIN13 : +5V
Refer to power(SMPS).
NO
Replace R381~R386,
R149.
NO
YES
YES
Refer to MICOM circuit.
Refer to power(SMPS).
NO
YES
Refer to MICOM circuit.
NO
YES
Check RM circuit
NO
YES
Resolder or Replace RC01.
Blue or Red LED
turn off?
Check if
CN302 and PN331
are ok?
Check if
the front power
is ok?(*1)
Check if
DIS301 is ok?
Check if the
power part of the
front is ok?
Check if
R381~R386, R149
are ok?
Check if the
power part of the front
is ok?
Check if RC01
voltage is ok(5V)?
Check if the remote
control waveform of CN302
pin11 is ok?
Is the Digitron on
correctly?
Check if all
buttons are ok?
Check if the
remote control
is ok?
