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VX9100
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved
Only for training and service purposes
4.2.1.4 Check RF Tx Dual SAW (DCN)
Test Point
Test Point
Circuit Diagram
Circuit Diagram
F101
Checking Flow
Checking Flow
D_IN
D_OUT
Waveform
Waveform
Figure 4.2.1(h)
D_IN fed up with CW signal
TP1
TP2
D_IN
D_OUT
U105
(Dual PAM)
U109
(RFT6150)
Check pin1(TP1)
at F 101
. Referring to
Figure 4 .2 .1(g)
Is it similar ?
Start
Replace F 101
Check
U109(RFT6150)
YES
NO
Check pin9(TP2)
at F 101
. Referring to
Figure 4 .2 .1(h)
Is it similar ?
RF Tx Dual SAW is
OK
YES
Figure 4.2.1(g)
Содержание VX9100 Maroon
Страница 135: ...1 VX9100 Assembly Disassembly Diagram ...
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Страница 138: ...2 VX9100 Block Circuit Diagram Main Key Pad FPCB ...
Страница 139: ...Block Diagram ...
Страница 141: ...Circuit Diagram Main Key Pad ...
Страница 142: ...Main Board Circuit ...
Страница 149: ...Keypad Circuit ...
Страница 151: ...3 VX9100 Part List Main Key Pad FPCB ...
Страница 161: ...4 VX9100 Component Layout ...
Страница 164: ...5 VX9100 BGA Pin Map ...
Страница 165: ...BOTTOM VIEW Unit mm USED NOT USED 1 MSM6550A U202 A1 Index Mark ...
Страница 166: ...2 HYC0SGH0MF3P 6S60E U300 Unit mm A1 Index Mark USED NOT USED BOTTOM VIEW All Pins assigned to Logic Signal and GND ...
Страница 167: ...3 MAX9775EBX T U301 TOP VIEW USED NOT USED ...
Страница 168: ...4 LP3922 U401 USED NOT USED BOTTOM VIEW ...
Страница 169: ...5 BD6085GUL U500 USED NOT USED BOTTOM VIEW ...