Sony ICD-SX700D - Digital Voice Recorder, Service Manual

Page: 13 / 52

ICD-SX700/SX700D/SX800/SX800D/SX900
13
3. Loop test
Execute the DSP LOOP BACK.
• Press the [ /MENU] button to return to the test mode
screen.
4. ExtMic Cal
• The external microphone R and L channels level difference
is calibrated.
• Press the [
Nx
] button to start calibration.
• Press the [
x
] button to return to the test mode screen.
5. SetMic Cal
• The internal microphone R and L channels level difference
is calibrated.
• Press the [
Nx
] button to start calibration.
• Press the [
x
] button to return to the test mode screen.
6. Beep test
• Beep sound of 1.3 kHz is output.
• Press the [
Nx
] button to start outputting and press the [
x
]
button to stop.
• Press the [ /MENU] button to return to the test mode
screen.
7. LCD Contrast test
• Adjust the LCD contrast.
Default value is 10.
• Adjust the LCD contrast using the [
>
]/[
.
] button.
• Press the [ /MENU] button to return to the test mode
screen.
8. Cluster Num test
• This is the cluster number display to be used for engineering
design.
• Press the [
x
] button to return the test mode screen.
9. RTC Interrupt test
• Perform the self test of the RTC.
• Press the [
x
] button to return to the test mode screen.
10. Battery test
• The detected A/D value of the battery remaining power is
checked.
• Press the [
x
] or [ /MENU] button to return to the test
mode screen.
11. Batt Cnt test
• The present A/D value of the center of the battery remaining
is checked.
• When the battery is not connected, NG is display.
• Press the [
x
] or [ /MENU] button to return to the test
mode screen.
12. Batt AC2 test
• The present A/D value of the side of VBatAC x2 on the error
ampli fi ed circuit (IC1603 output) is checked.
• Press the [
x
] or [ /MENU] button to return to the test
mode screen.
13. Batt AB4 test
• The present A/D value of the side of VBatAB x4 on the error
ampli fi ed circuit (IC1603 output) is checked.
• Press the [
x
] or [ /MENU] button to return to the test
mode screen.
* : 12, 13 items, refer to following fi g.
70k
110k
ADIN1
(VCCVBAT)
ErrorAmp
ADIN7
(VBAT_ERR)
ADIN8
(VBAT_CNT)
B
C
A
VBatAB
VBatBC
VBatAC
IC1001
IC1603
Q1664
Q1663
x2SIDE
x4SIDE
14. VBUS test
• The present value of the VBUS is checked.
If it is connected, OK is display.
• Press the [
x
] or [ /MENU] button to return to the test
mode screen.
15. Sleep test
• Sleep is tested.
Note: When <Sleep> is selected, the machine enter the sleep mode.
To exit the sleep mode, turn off the power, by removing the bat-
teries and reenter the test mode.
16. App Log Out test
• This is the app log out to be used for engineering design.
• Press the [
x
] button to return the test mode screen.
17. Log Output test
• This is the log output to be used for engineering design.
Note: Not used.
• Press the [
x
] button to return to the test mode screen.
Test Key SWITCH Description
1
Sound vol-
ume test [VOL +],
[VOL –] The sound volume can be adjusted
(Default value is 20.)
2
Recording
level test
[
.
], [
>
]
Press the [
.
HOLD] switch to ON
for MANUAL mode.
The recording level can be adjusted
(Default value is 30.)
3
Muting test [DIVIDE/ ]
Muting test can be set to “ON” or
“OFF”.
Directivity [DIRECTNL]
“ON” or “OFF” of the switch can be
set the directivity of the microphone.
4
Setting of
recording
AUTO/
MANUAL
[
.
HOLD]
OFF: AUTO
ON: MANUAL
5
Sensitivity/
Limitter [NOISE
CUT]
AUTO ([
.
HOLD] SW:OFF):
(OFF: Sensitivity H, ON: Sensitiv-
ity L)
MANUAL ([
.
HOLD] SW:ON):
(OFF: Limitter OFF, ON: Limitter
ON)
6
Selection
of the
external
micro-
phone
[DPC]
Press the [
.
HOLD] switch to ON
for MANUAL mode.
OFF: MIC IN, ON: AUDIO IN