LG KU580 Service Manual - Page 145
Checking Regulator Circuit, 20.2 Checking VCXO Block, 20.3 Checking Front End Module
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4. TROUBLE SHOOTING 4.20.1 Checking Regulator Circuit Refer to 4.16 Checking Power Source block IF you already check this point while checking power source block (4.15), You can skip this test. 4.20.2 Checking VCXO Block Refer to 4.17 Checking VCXO block IF you already check this point while checking VCXO block (4.17), You can skip this test. 4.20.3 Checking Front End Module Refer to 4.19.2 Checking Ant. SW Module IF you already check this point while checking Ant. SW module (4.19.2), You can skip this test. LGE Internal Use Only - 146 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
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- 146 -
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
4.20.1 Checking Regulator Circuit
Refer to 4.16 Checking Power Source block
IF you already check this point while checking power source block (4.15), You can skip this test.
4.20.2 Checking VCXO Block
Refer to 4.17 Checking VCXO block
IF you already check this point while checking VCXO block (4.17), You can skip this test.
4.20.3 Checking Front End Module
Refer to 4.19.2 Checking Ant. SW Module
IF you already check this point while checking Ant. SW module (4.19.2), You can skip this test.