LG D686 - WCDMA Tx Part

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3. TROUBLE SHOOTING

- 37 -

Only for training and service purposes

LGE Internal Use Only

3.2 WCDMA Tx Part

3.2.1 WCDMA_ Tx B1/B2/B5/B8

* There are no Test Points on the IQ Data Line. So It is impossible to check the IQ Data Wave form.

WCDMA B1/B2/B5/B8 Tx TEST SETUP

- Test Channel : 10700 / 9800/ 44407 / 3013

- Sector Power : -55 dBm

1. Check

DC Power Supply Circuit

START

2. Check MT6162 XO

4. Check DPX

5. Check PAM

Re download S/W & Cal

3. Check PA

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