Checking Control Signal - LG U8120 Service Manual

4. TROUBLE SHOOTING

4.21.4 Checking Control Signal

Test Program Script
MODE=0
SWTX=1,64,7,1024,1
RADSTR
RADCLK
RADDAT
VCCA
(C1330)
VC CA
(L1200)
LPF block
TXON
(R1333)
RADSTR
(TP1203) (TP1202)
Figure 4-39. GSM RF Control signal
- 168 -
(C1223)
(L1120)
(L1202)
RADCLK
RADDAT
(TP1201)
TXON
Vtune
Vtune
VCCA
VCCA