Specifications
BrightSign HD2000
This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Roku assumes no 
obligation regarding future manufacturing unless otherwise agreed to in writing. www.rokulabs.com
 © Roku 2006 
Appendix A 
Flow Chart: (for Repair Center Use) 
(1) Power Start 
Check RP15 
Check U34, 
L88, D26 
Check D21 & D22 
for shorts
Is the Voltage of 
 L80 = 5V? 
Is the Voltage of 
TP24 3.3V? 
Is the Voltage across 
D12 ~= 2V?
No 
No 
No 
Yes 
Yes 
No LEDs 
on 
Is the Output power 
adapter 5V DC
? 
Replace Power 
Adapter 
No 
Yes 
Replace D12 










