Pioneer PDP-5000EX, Service Manual

Page: 79 / 204

PDP-5000EX
79
5 6 7 8
5 6
7
8
C
D
F
A
B
E
Flowchart of Failure Analysis for The MAIN Assy (4)
No
Is the selected input signal a
DVI signal?
Yes
B
Does the result of SIG mode
detection on the Factory menu
coincide with the input signal data?
Is a video signal output from
IC6801?
(pin 10 to 13, 16 to 19)
(pin 23 to 26, 29 to 32)
(pin 33, 36, 37, 40 to 44)
Is a video signal output from
IC7001?
(pin 10 to 17)(pin 20 to 27)
(pin 30 to 37)
Is the sync signal output from
IC7001? (pin 47, 48)
No
The source equipment previously
used is in failure.
No problem with the MAIN Assy.
Info Frame data have not been acquired.
OK
After changing the source
equipment, check the "HDMI
SIGNAL INFO" data again.
NG
Replace the MAIN Assy.
IC7001 and its peripheral circuits
are in failure.
No
No
Replace the MAIN Assy.
Does the result of SIG mode
detection on the Factory menu
coincide with the input signal data?
Yes
Yes
Are the data displayed on the
"HDMI SIGNAL INFO" page of
the Factory menu correct?
No
Is the selected input signal a
HDMI signal?
No
Yes
Yes
Is the sync signal input to IC5802?
The signal identification path is
in failure.
No
Replace the MAIN Assy.
IC5802 and its peripheral circuits are in failure.
Replace the MAIN Assy.
Yes
IC6601 and its peripheral circuits are in failure.
Replace the MAIN Assy.
Yes
No problem with the MAIN Assy
Yes
Is the sync signal output from
IC6801? (pin 2, 3)
No
No
IC6801 and its peripheral circuits
are in failure.
No
Replace the MAIN Assy.
Yes
Is the sync signal input to IC5802?
The signal identification path is
in failure.
No
Replace the MAIN Assy.
IC5802 and its peripheral circuits are in failure.
Replace the MAIN Assy.
Yes
IC6601 and its peripheral circuits are in failure.
Replace the MAIN Assy.
Yes