PDP-5016HD
149
5
7
8
5
6
7
8
C
D
F
A
B
E
5.2 DIAGNOSIS OF PD (POWER-DOWN) and SD (SHUTDOWN)
5.2.1 BLOCK DIAGRAM OF THE POWER DOWN SIGNAL
• Diagnosis of the PDP Module
Digital Assy
(42'; AWV2301)
(50'; AWV2302)
LED for Diagnosis
(Left; Green)
(Right; Red)
Temp. sensor and
backup data memory
Interface Assy
(42',50'; AWV2373)
Power supply Unit ;
(42', 50'; AXY1153)
P/D and S/D diagnoses with a blinking of a red or a green LED in the interface Assy.
PS_PD
detect
PS_PD
PD_MUTE
POWER SUPPLY Unit
IC3155
PD
mute
ADDRESS ASSY
ADDRESS ASSY
D15 D18
ADDRESS ASSY
ADDRESS ASSY
ADDRESS ASSY
ADDRESS ASSY
ADDRESS
Assy
D3501
D3502
OR
IC3151
Module
microcomputer
X DRIVE
Assy
X1
XDRIVE_PD
XDD_CNV_PD
XSUSTN_P
Y DRIVE
Assy
Y1
D20
SCAN_PD
YDRIVE_PD
YDD_CNV_PD
YSUSTN_PD
SCN5V_PD
3
4
5
6
7
OR
Relay
PS_PD
2
PD
PD_TRIGGER
EXT_PD
D19
DIGITAL Assy
11
10
9
• Check LED flashes on INTERFACE Assy
Normal operation
Stanby ; Red
Power ON; Green
Green
Red
LED
8
Note: The figure number shows the LED blinking times if Power down.
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