Mic Detection Check; Mic In Signal Check - Sony PCS-G70N Service Manual

4-2-2. MIC Detection Check

1. Refer to Section 4-1-2, and start the Diag mode.
2. Connect the microphone to the MIC 1 connector of the
unit.
3. Enter the following command from the terminal PC,
and check the response status.
command> extmic ↓
ExtMic : 1
4. Remove the microphone from the MIC 1 connector.
5. Enter the following command from the terminal PC,
and check the response status.
command> extmic ↓
ExtMic : 0
6. Connect the microphone to the MIC 2 connector and
perform the same check in steps 2 to 5.
4-26 (E)

4-2-3. MIC IN Signal Check

Preparation (create a measuring cable)
Required equipment
. Audio cable (ø3.5 mm stereo mini plug 5 audio pin
plug) : 1 pc
. 100 kZ resistance: 1pc
Place the 100 kZ resistance between the audio cable.
Check
1. Refer to Section 4-1-2, and start the Diag mode.
2. Connect the unit's MIC 1 connector and AUDIO OUT
connector with the measuring cable.
3. Enter the following command from the terminal PC,
and check the response status.
command> auxmute 1 ↓
command> linemute 1 ↓
command> audioin 0 ↓
command> sendeccmd 10684000 ↓
EC DSP : transmit command = 0x10684000
command> sendeccmd 1069000a ↓
EC DSP : transmit command = 0x1069000a
command> sendeccmd 10620000 ↓
EC DSP : transmit command = 0x10620000
command> getecsts
EC DSP : return code = 0xXXXXXXX
4. Check that the last response status "0xXXXXXXX" is
within specification.
Specification: 0xE4E1C00 ± 20%
(0xB71B000 to 0x112A8800)
5. Connect the microphone to the MIC 2 connector and
perform the same check in steps 2 to 4.
PCS-G70N/G70NP/G70NP2
PCS-G70S/G70SP