Functional description of PCBs
Manpack Transceiver 2110 series Repair Guide 43
SCL – Data IC103
SCLK 3.3 V p–p, 250 kHz square
wave
Synchronous clock for PIC IC302
SDA – Data (serial data for PIC) IC103
SHZ – Data IC301
TX_AUDIO 1 V p–p Tx audio Front Panel PCB
WDOG_
CLKIN
3.3 V p–p @ 14 Hz Clock signal from CPLD to
CPLD
IC301
X1 – Not used
Table 10: Test points for the Audio & Control PCB (08-06128-001) (cont.)
Test point Correct signal Explanation Source
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