Sony ICD-P620 Service Manual ▷ View online
ICD-P620
5
2-2. MAIN BOARD
2-3. USB BOARD
USB board
two screws
MAIN board
S701
CN2001
insulating sheet
battery case lid
cushion (battery terminal)
screw
ICD-P620
6
SECTION 3
TEST MODE
1. Outline of the TEST MODE
The TEST MODE is designed to help verify the set when servic-
ing it.
The TEST MODE is only menu driven to select modes for servic-
ing.
The TEST MODE is designed to help verify the set when servic-
ing it.
The TEST MODE is only menu driven to select modes for servic-
ing.
2. Entering and Canceling the TEST MODE
With the power on, turn on the [HOLD] switch while pressing the
[
With the power on, turn on the [HOLD] switch while pressing the
[
x
] button and the [DISPLAY/MENU] button at the same time.
3. Canceling the TEST MODE
The TEST MODE can be cancelled by turning off the power (un-
plugging the dry battery).
The TEST MODE can be cancelled by turning off the power (un-
plugging the dry battery).
4. Menu Key Designation
The menu has the fi ve modes described below. The following keys
are assigned on the initial screen (version display).
The menu has the fi ve modes described below. The following keys
are assigned on the initial screen (version display).
5. Key
Assignment
From within TEST MODE, the intended menu can be entered by
using the appropriate one key of the following key.
using the appropriate one key of the following key.
LCD Test (All On
yAll Off)
DISPLAY/MENU
BEEP Test (1.3 kHz)
ERASE
HQ-DSP LOOP
zXREC
SP-DSP LOOP
– .
LP-DSP LOOP
> +
USB Test
NxPLAY/ENTER
REST MENU Test
DIVIDE
Initial Display from each mode
x
5-1. Initial Display in TEST MODE
LCD indications (destination information, memory capacity, CPU
FW information and MIC sens) when TEST MODE is entered:
LCD indications (destination information, memory capacity, CPU
FW information and MIC sens) when TEST MODE is entered:
Memory capacity
(512-512 MB)
(512-512 MB)
MIC sens
Destination
information
information
CPU FW information
5-2. LCD Test
To enter the LCD Test, press the [DISPLAY/MENU] button. The
LCD Test has two modes: All On and All Off First all the indica-
tors are on. All the indicators are off when the button is pressed
again.
To enter the LCD Test, press the [DISPLAY/MENU] button. The
LCD Test has two modes: All On and All Off First all the indica-
tors are on. All the indicators are off when the button is pressed
again.
ALL ON
DISPLAY/MENU
Switch between
the modes.
the modes.
ALL OFF
Press the [
x
] button to return to the initial display (destination
information, memory capacity, CPU FW information and MIC
sens).
sens).
5-3. BEEP Test
To enter the BEEP Test, press the [ERASE] button.
To enter the BEEP Test, press the [ERASE] button.
Beep: Frequency 1.3 kHz only
Press the [
x
] button to return to the initial screen (memory and
CPU version).
5-4. DSP LOOP
The DSP LOOP modes can be entered selectively by pressing the
appropriate one of the following three keys.
Within the LOOP test menu, “LOOP” is displayed. The sensitivity
character H or L is displayed depending on the position into which
the [HOLD] switch is placed.
The sensitivity H is displayed when [HOLD] switch is in the ON
position. The sensitivity L is displayed when [HOLD] switch is in
the OFF position.
The DSP LOOP modes can be entered selectively by pressing the
appropriate one of the following three keys.
Within the LOOP test menu, “LOOP” is displayed. The sensitivity
character H or L is displayed depending on the position into which
the [HOLD] switch is placed.
The sensitivity H is displayed when [HOLD] switch is in the ON
position. The sensitivity L is displayed when [HOLD] switch is in
the OFF position.
[9 REC
To change the DSP LOOP test mode, press the [
x
] button, then
select the [
zX
REC] button, [–
.
] button, or [
>
+] button.
In a DSP Test mode, to select another DSP Test mode and to select
the other sensitivity, the [
the other sensitivity, the [
x
] button also has to be pressed.
ICD-P620
7
Sensitivity H
HOLD
ON
OFF
Sensitivity L
HOLD
To change the sensitivity again, press the [
x
] button and change
the [HOLD] switch.
In a DSP Test mode, changing the mode and changing the sensitiv-
ity require the [
In a DSP Test mode, changing the mode and changing the sensitiv-
ity require the [
x
] button be pressed.
5-5. USB Test
In this test, the ON/OFF status of VBUS is displayed and the SUS-
PEND test is performed.
The [
In this test, the ON/OFF status of VBUS is displayed and the SUS-
PEND test is performed.
The [
Nx
PLAY/ENTER] button is pressed to display the status of
VBUS by “On” or “OFF” indication.
With the VBUS ON, the [HOLD] switch is operated (ON) to per-
form the SUSPEND test.
With the VBUS ON, the [HOLD] switch is operated (ON) to per-
form the SUSPEND test.
• VBUS Test
• SUSPEND Test
With the VBUS ON, turn the [HOLD] switch ON to enter the SUS-
PEND mode.
When this mode is cancelled, the VBUS is turned OFF.
With the VBUS ON, turn the [HOLD] switch ON to enter the SUS-
PEND mode.
When this mode is cancelled, the VBUS is turned OFF.
/YPLAY/ENTER
L
,
Y
Y
with VBUS
VBUS OFF
,
K
HOLD
ON
+
SUSPEND mode
5-6. RESET MENU
To enter the RESET MENU test, press the [DIVIDE] button.
When all of the buttons or controls located on the set are operated,
the system shows “Ok” if all of them are normally operated.
An operation of a switch is indicated by the number for verifi cation
in order to make a simple indication.
To enter the RESET MENU test, press the [DIVIDE] button.
When all of the buttons or controls located on the set are operated,
the system shows “Ok” if all of them are normally operated.
An operation of a switch is indicated by the number for verifi cation
in order to make a simple indication.
Note 1:
When 10 different operations of the switches are normally made
in any order (regardless of the order that pushbuttons are pressed
and the slide switch is set to ON and OFF), the system shows
“Ok”.
and the slide switch is set to ON and OFF), the system shows
“Ok”.
Note 2:
Clear memory when “ACCESS” is blinking on the display. (Do
this before “Ok” is shown.) To exit from this menu, the power has
to be turned off (battery to be removed).
to be turned off (battery to be removed).
/YPLAY/ENTER
L
,
Y
with VBUS
without VBUS
ICD-P620
8
• Switches and corresponding LCD indications
Switch
Indication
DIVIDE
1
DISPLAY/MENU
2
zXREC
3
NxPLAY/ENTER
4
– .
5
x
6
> +
7
ERASE
8
HOLD-OFF
9
HOLD-ON
10
S
S
Press DIVIDE button.
Indication after DIVIDE
button is pressed.
button is pressed.
Indication after DISPLAY/MENU
button is pressed.
button is pressed.
Indication after [9 REC
button is pressed.
Indication after HOLD is
set to OFF.
set to OFF.
Indication after HOLD is
set to ON.
set to ON.
UIf any key is not pressed,
the system waits for the key
to be pressed.
Clear memory when “ACCESS” is
blinking on the display.
The system shows “Ok”.
blinking on the display.
The system shows “Ok”.
••••••
S
S
S
1
2
8
10
3
4
5
6
7
9
DIVIDE
REC
Y
+
–
[9
/Y
ERASE
VOL
HOLD
ON
OFF
OFF
DISPLAY/MENU
PLAY/ENTER
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