Pioneer PDP-507CMX Service Manual page 114

1
Flowchart of Failure Analysis for The Remote Receiver Unit
A
Failure analysis for the remote
receiver unit ⇒ RM1
No
Is the signal shown below output
from Pin 6 of CN9010 on the
MAIN Assy?
5Vp-p
No
B
Is the signal shown below output
from Pin 10 of IC2301 on the
COMM SLOT I/F Assy?
4Vp-p
1V
No
Is the signal shown below output
from Pin 1 of CN2401 on the LED
Assy?
C
4.4Vp-p
No
Failure in the U2401 of LED Assy
D
E
F
114
1
2
Yes
Failure in the MAIN Assy
Yes Failure in the IC2301 of
COMMSLOT IF Assy
Yes
Failure in the Q2302 or Q2301 of
COMMSLOT IF Assy
PDP-507CMX
2
3
3
4
4