4.1.4 Checking Control Signal
Test Point
Checking Flow
Waveform
Check Pin 18,19,20
◆
Refer to Figure 4.1-8,4.1-9
Check SBDT, SBCK SBST
Check if there is
Any Major Difference
◆ Refer to Figure 4.1-8,4.1-9
Level is High?
Similar to
below Picture?
Yes
No
Yes
No
Download the SW
Download the SW
Control Signal is Ok
See next Page to Check
Quintplexer
& Mobile SW
Figure 4.1-8 Rx MCM SKY74609
SBDT
SBCK
SBCK
SBST
Figure 4.1-9
SBDT & SBCK WAVEFORM
Figure 4.1-10
SBST & SBCK WAVEFORM
U1502 Pin20 (SBST)
U1502 Pin18 (SBCK)
U1502 Pin19 (SBDT)
32
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Содержание LG- PX240
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