LG VX5400 Service Manual page 70
Tri band, quad mode [pcs/gps/cellular/amps] cdma mobile phone
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Also See for VX5400:
- User manual (99 pages) ,
- Quick reference manual (49 pages) ,
- Quick start manual (6 pages)
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Refer to 4.2.1(f) for DCN 4.2.1(g) for Amps
LGE Internal Use Only
Start
Check I/Q data at U112
I/Q Level is show up?
(Refer to 4.2.1(e))
YES
Check pin 10 at U112
Almost 1volt level is show up?
YES
Check pin 23 at U112
Output signal level is show up?
YES
Control signal is O.K See next page
Checking Flow
Checking Flow
NO
NO
NO
Copyright@2007 LG Electronics. Inc. All right reserved.
-70-
Check U200 MSM 6100
Replace U112
Replace U112
Only for training and serving purposes
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