Advertisement
NHM-2/5nx,ny/6/9
Troubleshooting
+DJDU DQG VHULDO LQWHUIDFH
In general, if phone is not in a sleep mode, Hagar chip is always active.
This means that, as long as we have set the phone in Normal mode or in Local mode (either RX or TX
band ) there is going to be some Hagar activities, which is controled through serial interface
(SDATA,SCLK,SENA and HAGAR_RESET_X).
Pictures below show these four signals, measured on R301 (both SCLK and SENA) , on R300
(SDATA) and C540 (HAGAR_RESET_X). R301 and R300 are placed in BB part.
Figure 3. SCLK - clock signal
Figure 5. SDATA - data signal
3DJH
PAMS Technical Documentation
Figure 4. SENA - enable signal
Figure 6. HAGAR_RESET_X - hagar reset "on"
1RNLD &RUSRUDWLRQ
,VVXH $SULO
Advertisement
