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V80

V80. Audio Design of V80 Triplets based platform ICs Neptune IC - contains the audio DSP PCAP IC contains the CODEC, stereo DAC, audio amplifiers & audio control logic circuits. Note: Neptune CODEC not used, uses only PCAP CODEC. V80. PCAP Tx Audio. HJACK MIC. INT_MIC+.

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V80

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  1. V80 • Audio Design of V80 • Triplets based platform ICs • Neptune IC • - contains the audio DSP • PCAP IC • contains the CODEC, stereo DAC, audio amplifiers & • audio control logic circuits Note: Neptune CODEC not used, uses only PCAP CODEC Motorola Confidential Proprietary

  2. V80 PCAP Tx Audio HJACK MIC INT_MIC+ MK 1200 • 3 mic input paths • Handset mic : AUX_MIC- • Headset mic : MIC_IN- • CE mic : EXT_MIC Motorola Confidential Proprietary

  3. V80 PCAP Rx Audio LS1 Alert Spkr J1260 • 4 spkr output paths • Handset Spkr : SPKR+/- • Headset Spkr : ARIGHT_OUT • Alert Spkr : ALRT+/- • CE Spkr : EXTOUT Motorola Confidential Proprietary

  4. V80 • Handset Audio Loopback Check • Objective: To check that handset mic & spkr are both functional • Step 1: Setup • Use RadioComm • Put phone in suspend mode • Set AUD_PATH : Input- Internal Mic • Output- Internal Spkr • Set AUD_LVL=15 • User must hear feedback from mic to spkr when mic is being rubbed Motorola Confidential Proprietary

  5. V80 • If loopback fails: • Step 2: Check Transceiver board • Verify mic input path into PCAP • Measure MIC_BIAS1 =2.1V (R1001 inside PCAP shield SH 900) • Measure INT_MIC+ = 0.7V (C1001 inside PCAP shield SH 900) • Verify spkr output path from PCAP • Under AUD_TN_GEN • Set Frequency : 1000Hz • Set Level 1 : 7FFF (default) • Probe 1KHz signal to verify at • SPKR+ : R1210 • SPKR- : R1211 ( located at 60 BB connector) Motorola Confidential Proprietary

  6. V80 • Headset Audio Loopback Check • Objective: To check that headset mic & spkr are both functional • Step 1:Setup • Use RadioComm • Put phone in suspend mode • Set AUD_PATH : Input- Boom Mic • Output- Boom Spkr • Set AUD_LVL=15 • User must hear feedback from mic to spkr when mic is being rubbed Motorola Confidential Proprietary

  7. V80 • If loopback fails: • Step 2: Check Transceiver board • Verify mic input path into PCAP • Measure MIC_BIAS2 =2.1V (R1020 inside PCAP shield SH 901) • Measure HJACK_MIC = 1.4V (C1241 besides • headset jack J1240) • Measure HJACK _DET (VR1241 besides headset jack J1240) • = 2.7 V (headset unplugged) • = 0 V (headset plugged) Motorola Confidential Proprietary

  8. V80 • Verify spkr output path from PCAP • Make a call connection between HP8922 & phone • Demodulation Modulating speech out connected to scope at CH1 • 1KHz signal from Sig Gen to modulation speech in at HP8922 • Plug in headset • Probe signal from scope CH2 at ARIGHT_OUT (C1034 inside • PCAP shield SH900) Scope Modulation In AM/ Speech Signal Gen Motorola Confidential Proprietary

  9. V80 • CE Audio Check • Objective: To check that CE mic & spkr are both functional • Verify spkr output path from PCAP • Setup same as headset test setup • Plug in CE accessories • Probe signal from scope CH2 at AUDIO_OUT (R1055 inside • PCAP shield SH900) Motorola Confidential Proprietary

  10. V80 • Alert Spkr Check • Verify spkr output from PCAP • Step 1:Setup • Use RadioComm • Put phone in suspend mode • Under Alert • Enabled Classic • Probe signal at ALRT+ : C1063 • ALRT- : C1064 • (Inside PCAP shield SH900) Motorola Confidential Proprietary

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