MDC-3560P/3510P Series
Chapter 8
TROUBLE SHOOTING AND ON BOARD SERVICING
93142002-01
8-5
2. No response
N
Y
Y
N
Y
N
N
Y
N
Correct the faulty connections
Y
N
Main Logic PCB is faulty
Panel PCB is faulty
Y
N
Y
N
Panel PCB is faulty
Y
Is Main Fuse F1 normal
(not blown)?
Is the fuse rating correct?
Replace the fuse
Is the polarity of power
supply line correct?
Correct the polarity
Power supply unit is
faulty
Is the power supply voltage
range (21.6 – 41.6 V)
correct?
Set ship’s supply voltage
within the specified range
Is “+5V” on J603-1
pin correct?
Is the voltage on J706-9
and 10 pins on Power
Supply PCB about 0 V
when the unit is powered?
Power supply PCB is
faulty
Are the following connections
correct?
(1) J706 (Main Logic PCB)
and Power Supply PCB
(2) J705 and Panel PCB
Correct the faulty
connections
Check if the status of LEDs on
the Main Logic PCB is as follows’
1) DS1:
OFF
2) DS2:
ON
N
Are the connections between
J705 on Main Logic PCB and
Panel PCB correct?