Repair procedures, tests, and adjustments
Manpack Transceiver 2110 series Repair Guide
99
Figure 31:
Power On fault diagnosis flowchart
Power On fault
diagnosis flowchart
Yes
Does the unit
power up?
Replace with charged,
good battery
Is the current
drawn > 220 mA?
No
No
Check fuse F3–F4 on
PA & Filter PCB
Yes
Is the
state of health of the
battery <20%?
Yes
No
Charge battery
Battery
Replace with new battery
Does the unit
power up?
Yes
Power supply
While charging
Does the unit
power up?
No
Yes
Is the
LCD on and
showing the home
screen?
Yes
No
No
Switch on 2110, then
check current
Yes
No
Is any
current drawn, or
are relay clicks
heard?
Is fuse blown?
Yes
No
Check cables J301 and
J302 on Audio & Control
PCB
Are cables OK?
No
Yes
Disconnect P101,
P102 and P103 on
Audio & Control PCB
Repair fuse
Is the current
drawn > 10 mA?
Yes
No
Connect P101 on
Audio & Control PCB
Is the current
drawn > 120 mA, or
fuse blows?
Yes
No
Leave 2110 on, switch off
power at supply and
disconnect J301 and J302
on Audio & Control PCB
Connect P102 on
Audio & Control PCB
Is the current
drawn > 120 mA, or
fuse blows?
Yes
No
Connect P103 on
Audio & Control PCB
Is the current
drawn > 220 mA, or
fuse blows?
Yes
No
Switch on power supply
Is the current
drawn > 50 mA or
fuse blows?
Yes
No
Replace Front Panel
Assembly
Replace J301 and J302
Check J301 and J302
ribbon cables on Audio &
Control PCB and Front
Panel Assembly
Replace PA & Filter PCB
Replace Audio &
Control PCB
Replace Front Panel
Assembly
Replace Antenna Tuner
PCB
Replace RF/IF &
Synthesiser PCB
Disassemble 2110
Return to Repair
flowchart
Summary of Contents for 2110 series
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