Chapter 8 MDC-3560P/3510P Series
TROUBLE SHOOTING AND ON BOARD SERVICING
8-6 93142002-01
3. No display
Y
N
Y
N
Y
Y
N
CRT Monitor unit is faulty
N
N
Y
Y
N
Y
N
Power Supply PCB is faulty
N
Y
Is the BRILL control
fully rotated CW?
Turn the BRIIL control
fully CW
Is the CRT heater
lighted?
Is the CRT Neck PCB
properly fitted on the
CRT?
Reset the CRT Neck
PCB
Is +130V is correct on
J608-2 and GND?
Is fuse F101 on CRT
Drive PCB normal?
CRT monitor unit is
faulty
Are the connections
between J608 on Power
Supply PCB and CRT
monitor unit normal?
Correct the faulty
cable connections
Main Logic PCB is
faulty
Correct the faulty cable connections
Are the cable connections
between J708 (Main Logic
PCB) and CRT Monitor
correct?
Main Logic PCB is faulty
Check if the status of
LEDs on the Main Logic
PCB is as follows’
3) DS1:
OFF
4) DS2:
ON