Motorola A920 Service Manual page 5

Level 3 Service Manual
Mono Headset Mic/Speaker test ................................................................................................................... 3-13
Stereo Headset Mic/Speaker test .................................................................................................................. 3-14
Melody Speaker test ..................................................................................................................................... 3-14
Software Version Check ........................................................................................................ 3-15
Display Test Procedures ....................................................................................................... 3-15
Display Backlight Test ................................................................................................................................... 3-15
Display Color Test ......................................................................................................................................... 3-16
Figure 23. Eight Color Box Pattern .......................................................................................................... 3-16
Display Linearity Test .................................................................................................................................... 3-16
Figure 24. Grey Scale Block ................................................................................................................... 3-16
Display Flicker Test ....................................................................................................................................... 3-17
Figure 25. Zebra Pattern .......................................................................................................................... 3-17
Display Pixel Defect (Bright) ......................................................................................................................... 3-17
Display Pixel Defect (Dark) ........................................................................................................................... 3-17
LEDS and Keypad Backlight ................................................................................................. 3-18
Status LEDS ................................................................................................................................................. 3-18
Keypad Backlight .......................................................................................................................................... 3-18
Bluetooth Tests (V500/V600 only) ......................................................................................... 3-19
Unmodulated CW TX test .............................................................................................................................. 3-19
Camera Testing ..................................................................................................................... 3-20
Hardware Requirements ................................................................................................................................ 3-20
Camera Test Configuration ............................................................................................................................. 3-20
Figure 9. Camera Test Configuration ........................................................................................................ 3-21
Image Capture ............................................................................................................................................... 3-22
Macbeth Color Chart ..................................................................................................................................... 3-23
Focus Chart .................................................................................................................................................. 3-23
Grey Scale Chart (Shading Test) ................................................................................................................... 3-23
Service Diagrams ....................................................................................................................... 4-1
Introduction ............................................................................................................................. 4-1
Test Point Measurements ........................................................................................................ 4-1
Antenna Circuit ....................................................................................................................... 4-2
GSM Receiver Front End ........................................................................................................ 4-4
Magic LV (Receiver Back End) ............................................................................................... 4-6
Magic LV (Control) .................................................................................................................. 4-8
Magic LV (Synthesizer/Transmitter) ....................................................................................... 4-10
GSM TX VCO ........................................................................................................................ 4-12
GSM Transmitter .................................................................................................................... 4-14
WCDMA RX Front End ......................................................................................................... 4-16
WCDMA Receiver (MAX2309) ............................................................................................. 4-18
Harmony Lite (Receive Section) ........................................................................................... 4-20
Harmony Lite (Control Section) ............................................................................................. 4-22
Harmony Lite (Synthesizer Section) ...................................................................................... 4-24
Harmony Lite (Transmitter Section) ....................................................................................... 4-26
WCDMA VCO ....................................................................................................................... 4-28
WCDMA TX Modulator .......................................................................................................... 4-30
WCDMA Transmitter .............................................................................................................. 4-32
Prelimiary
Motorola Confidential Proprietary
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