Hytera MD78X - Page 254

Troubleshooting Flow Chart
UHF3 (350
–
400 MHz)
36
[4] The CV of TP124 ranges from 0.5 V to 4.5 V.
[5] PLL U100 is supplied by 5 V and 3.3 V normally.
[6] The power of the signal from TP109 to PLL is about -15 dBm.
[7] TP110 outputs 19.2 MHz signal.