LG KU580 Service Manual - Page 118
Checking Common Power Source Block
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4. TROUBLE SHOOTING 4.15 Checking Common Power Source Block Step 2 GSM PAM Block Step 3 WCDMA PAM Block Step 1 PAM VBAT Block WCDMA DC/DC VBAT GSM PA VBAT (Bottom) Figure 4-3. Common Source Block Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 119 - LGE Internal Use Only
- 119 -
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
4.15 Checking Common Power Source Block
Figure 4-3. Common Source Block
Step 1
PAM VBAT Block
Step 2
GSM PAM Block
Step 3
WCDMA PAM Block
(Bottom)
GSM PA VBAT
WCDMA
DC/DC VBAT