
Checking Flow
START
Turn on the phone
Is the voltage level +VPWR
(R319,R337,R305,R313,R316,R328,R390,R391)
3.2-4.2V?
Check LEDs’ directions
Charge or Change Battery and try again
Check the soldering of each R or
Replace them.
Re-solder or replace LEDs
NG
No
NG
OK
Yes
OK
Change Board
Check the signal level at
KYPD_EN=LOW?
Replace QSC
No
Summary of Contents for RD3500
Page 2: ...CDMA MOBILE SUBSCRIBER UNIT LG KD3500 SINGLE BAND CDMA MOBILE PHONE SERVICE MANUAL ...
Page 24: ...LG KD3500 LGE LG Electronics Inc 22 21 1 U201 QSC6010 CHAPTER 4 BGA IC Pin Check ...
Page 25: ...LG KD3500 LGE LG Electronics Inc 23 21 2 U310 Memory ...
Page 28: ...Circuit Diagram DP101 DP101 ...
Page 36: ...4 3 2 Charging Trouble Test Points Circuit Diagram CON409 CON409 pin1 ...
Page 47: ...4 3 10 LCD Trouble Test Points Circuit Diagram C O N 3 0 4 CON304 pin3 ...
Page 50: ...CON302 Test Points Circuit Diagram 4 3 11 UIM Trouble R375 R378 R361 R376 ...
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