Daktronics PC-2001, Руководство пользователя

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Display Maintenance 19
IMPORTANT NOTES
:
1. Disconnect power before doing any repair work on the scoreboard.
2. Allow only qualified service personnel access to internal display electronics.
3. Disconnect power when not using the scoreboard.
Digit/Driver Printed Circuit Board
The PC-2001 uses a single printed circuit board (PCB) that contains all of the electronics
needed to make this system work: digit LEDs, control processors, power input connectors,
horn, and other components. All switches, power systems, and input/output terminations are
connected to the PCB.
As shown in
Figure 9 , the PCB is attached to the front panel of the display. Refer to Section
5.2 for instructions on accessing and replacing the PCB.
Battery
(BT-1014)
Nut securing signal jack
Screw
(HC-1489)
Case
Back
Circuit Board
(Part number varies
with model number)
Case
Front
Spacer
(HE-1357)
8-32 Nut
(HC-1354)
Figure 9: PC-2001 Exploded View
Rear Panel
Front Panel
Spacer (HE-1357)
Screw
(HC-1489)
8-32 Nut
(HC-1354)
Nut securing signal jack
Printed Circuit Board
(Indoor: 0P-1153-0001)
(Outdoor: 0P-1153-0003)
Battery
(BT-1014)