PDP-507CMX
89
5
6
7
8
5
6
7
8
C
D
F
A
B
E
Failure analysis for the
MAIN Assy
⇒
ST1
Flowchart of Failure Analysis for STANDBY STATUS
Turn the main power on with the cable to the CN2401 or CN2301
disconnected. Check if 5 V DC is output from Pin 8 of CN2301.
Turn the main power on with the cable to the CN2401 or CN2301
disconnected. Is 6.8 V DC output from Pin 1 of the CN9006 connector?
Is 6.8 V DC output from Pin 1 of the CN9006 connector?
Yes
No
Yes
Failure in the LED ASSY (failure in D2402 or CN2401) or in the
COMMSLOT IF ASSY (failure in the line for CN2301 or CN2302) or in the
MAIN ASSY (failure in the line for CN9010).
Yes
Failure in the CN2301 or LED ASSY
(failure in the M5V line at Pin 8 of the CN2401)
Turn the main power on with the cable to the CN2302 or CN9010
disconnected. Check if 5 V DC is output from Pin 20 of CN9010.
No
Yes
Failure in the CN2302 or COMMSLOT IF ASSY
(failure in the M5V line at Pin 20 of the CN2302)
Turn the main power on with the cable to the CN2302 or CN9010
disconnected. Check if 3.3 V DC is output from Pin 16 of CN9010.
No
Yes
Failure in the CN2302 or VIDEOSLOT IF ASSY
(failure in the M3.3V line at Pin 16 of the CN2302)
Turn the main power on with the cable to the CN4004 or CN5301
disconnected. Check if 3.3 V DC is output from Pin 50 of CN5301.
No
Yes
Failure in the CN4004 or VSIF ASSY
(failure in the M3.3V line at Pin 1 of the CN4004)
Turn the main power on with the cable to the CN2201 or CN9011
disconnected. Check if 3.3 V DC is output from Pin 1 of CN9011.
No
Yes
Failure in the CN2201 or KEY ASSY
(failure in the M3.3V line at Pin 1 of the CN9011)
Is 3.3 V DC output from Pin 4 of IC9503?
No
No
Failure in the MAIN ASSY (failure in the IC9503)
Is 0 V DC output from Pin 14 of CN8502 (AD2)?
No
Failure in the MAIN ASSY (failure in IC9501 or X9501)
Note: If IC9501 is in failure, replace the whole board.
No
No
Failure in the AD2 connector or MAIN ASSY (failure in IC9501 or X9501)
Note: If IC9501 is in failure, replace the whole board.
Turn the main power on with the COMMSLOT ASSY disconnected from
CN2303. Check if 3.3 V DC is output from Pin 118 of CN2303.
Yes
Yes
Failure in the COMMSLOT ASSY
(failure in the M3.3V line at Pin 118 of the CN2303)
Is 5 V DC output from Pin 5 of IC9502?
No
Failure in the MAIN ASSY (failure in the IC9502)
No
No
Failure in the DD ASSY or MAIN ASSY or COMM SLOT IF ASSY
Refer to "M+7V output abnormal operation" in the flowchart of failure
analysis for the DD Assy.
Summary of Contents for PDP 507CMX
Page 44: ...PDP 507CMX 44 1 2 3 4 1 2 3 4 C D F A B E 4 2 OVERALL CONNECTION DIAGRAM 2 2 ...
Page 45: ...PDP 507CMX 45 5 6 7 8 5 6 7 8 C D F A B E ...
Page 84: ...PDP 507CMX 84 1 2 3 4 1 2 3 4 C D F A B E 500ns div 500ns div 200ns div ...
Page 104: ...PDP 507CMX 104 1 2 3 4 1 2 3 4 C D F A B E ...
