Filter
Top Products
Service Modes, Error Codes, and Fault Finding
EN 15FHP PDP 5.
Figure 5-6 Short circuit check on boards and power supply lines (1/3)
X-SUS board is
defective
On Y-SUS board,
Remove SDM from the following
two connectors of Y-SUS:
CN34 and CN35
Remove the 4 XFPCs
(
disconnect CN63
,
CN64
,
CN65
,
CN66
)
(Switching circuit (power
supply) has a short-circuit)
Y-SUS board is
defective
(Switching circuit (power
supply) has a short-circuit)
On SDM board,
A1-A2, B1-B2,
C1-C2, D1-D2,
a
r
es
h
o
r
ted
?
SDM is defective
(PDP is defective)
X-BUS board is
defective
PDP
is defective
On X-BUS board,
CN61 pins 1 - 9
are shorted?
X-SUS
Y-SUS
13
[X-SUS - Y-SUS]
Vu
NC
Vcc
-Vs
-Vs
NC
GND
1
Vs
12
11
10
9
8
7
6
CN22
4
3
2
5
NC
GND
NC
Vs
NC
10
[X-SUS - PSU]
2
5
GND
GND
Vcc
NC
GND
Vs
1
Va
9
8
7
6
4
3
CN23
Vs
NC
Vs
[Y-SUS - X-SUS]
Vcc
NC
Vx
Vs
Vs
NC
GND
1
-Vs
13
12
11
10
9
8
7
6
CN32
4
3
2
5
NC
GND
NC
-Vs
NC
A2
A1 B1 B2
C1
C2 D1 D2
3
End of analysis
G_16400_027.eps
310706
Short-circuit check on Boards and Power Supply Lines
Y
Y
Y
Y
Y
2
N
N
N
N
N
X-SUS Board:
CN23 pins 3 - 4
CN23 pins 6 - 8
CN22 pins 10 - 13
are shorted?
Check with an ohmmeter if following
pins are shorted
Y-SUS Board:
CN32 pins 1 - 4
CN32 pins 8 - 10
are shorted?
CN32 pins 10 - 13
On X-BUS board,
CN61 pins 1 - 9
are shorted?