Tait TM9100 - PCB Layout of the Function Key LED and Status LED Circuitry

TM9100 Service Manual Fault Finding of Control Head 407
© Tait Electronics Limited August 2005
3. Check the resistors R601 and R602, and replace if necessary.
If the resistors are okay, the FPGA is faulty and the control-head
board must be replaced.
R601: 2.2kΩ
R602: 5.62kΩ
Figure 14.6 PCB layout of the function key LED and status LED circuitry
bottom side
top side
top side
bottom side
bottom side