User Guide

PAMS Technical Documentation UI Module Troubleshooting
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• U201 NAND Memory
• U601 Audio Codec
• U602 Audio Routing Select
• U801 FMR
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Diagnostic Tests:
• Perform test on page 68 – Line-In Recording Function to verify the recording
path is good.
• Perform test on Chapter on “FMR Function” – FMR Function to verify the FMR
path is good.
• Check operating current during recording mode (Table 8, “UI current consump-
tion in normal conditons,” on page 73).
• Check the Audio Routing Select, U602-Pin10 and U602-Pin9 are routed cor-
rected (Table 10, “Audio routing select,” on page 73).
• Verify recorded music file in the NAND using NAM.
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Diagnostic Tests:
• Check the stereo headset has proper contact with the UI module.
• Connect Stereo headset and check signal line ST_DET @ U301-Pin20
(Table 9, “Accessories connection indication,” on page 73)
• Connect HDC-5 and check signal line HDC5_INT @ U301-Pin23 (Table 9,
“Accessories connection indication,” on page 73)
• Check the Audio Routing Select, U602-Pin10 and U602-Pin9 are routed cor-
rected (Table 9, “Accessories connection indication,” on page 73).
• Check for analog signal activities at both sides of C641 and C642.