Sony ICD-B500 Service Manual ▷ View online
5
ICD-B500
2-2. MAIN BOARD
3
4
5
MAIN board
S701
1
insulating sheet
2
screw
6
ICD-B500
SECTION 3
TEST MODE
1. Outline of the TEST MODE
The TEST MODE is designed to help verify the set when servicing
it.
The TEST MODE is only menu driven to select modes for servicing.
The TEST MODE is designed to help verify the set when servicing
it.
The TEST MODE is only menu driven to select modes for servicing.
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 STOP
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
(unplugging the dry battery).
The TEST MODE can be cancelled by turning off the power
(unplugging the dry battery).
4. Menu Key Designation
The menu has the five modes described below. The following keys
are assigned on the initial screen (version display).
The menu has the five 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.
From within TEST MODE, the intended menu can be entered by
using the appropriate one key of the following key.
LCD Test (All On
yAll Off)
DISPLAY/MENU
LCD Test (All Off)
Bx PLAY/STOP (ENTER)
BEEP Test (1.3 kHz)
ERASE
HQ-DSP LOOP
zX REC/PAUSE
SP-DSP LOOP
– .
LP-DSP LOOP
> +
REST MENU Test
DIVIDE
Initial Display from each mode
x STOP
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:
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 indicators 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 indicators are
on. All the indicators are off when the button is pressed again.
Press the
x STOP
button to return to the initial display (destination
information, memory capacity, CPU FW information and MIC sens).
5-3. BEEP Test
To enter the BEEP Test, press the [ERASE] button.
To enter the BEEP Test, press the [ERASE] button.
Press the
x STOP
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.
To change the DSP LOOP test mode, press the
x STOP
button, then
select the
zX REC/PAUSE
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 STOP
button also has to be pressed.
Memory capacity
(256-256 MB)
(256-256 MB)
MIC sens
Destination
information
information
CPU FW information
ALL ON
DISPLAY/MENU
Switch between
the modes.
the modes.
ALL OFF
Beep: Frequency 1.3 kHz only
zX
REC/PAUSE
.
>
HQ
H
LP
H
SP
H
7
ICD-B500
To change the sensitivity again, press the
x STOP
button and change
the [HOLD] switch.
In a DSP Test mode, changing the mode and changing the sensitivity
require the
In a DSP Test mode, changing the mode and changing the sensitivity
require the
x STOP
button be pressed.
5-5. 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 verification
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 verification
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”.
are pressed 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).
the power has to be turned off (battery to be removed).
Sensitivity H
HOLD
ON
OFF
H
Sensitivity L
HOLD
L
r
r
Press DIVIDE button.
Indication after DIVIDE
button is pressed.
button is pressed.
Indication after DISPLAY/MENU
button is pressed.
button is pressed.
Indication after zX REC/PAUSE
button is pressed.
button is pressed.
Indication after HOLD is
set to OFF.
set to OFF.
Indication after HOLD is
set to ON.
t If any key is not pressed,
the system waits for the key
to be pressed.
set to ON.
t If 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”.
••••••
r
r
r
H
8
ICD-B500
• Switches and corresponding LCD indications
Switch
Indication
DIVIDE
1
DISPLAY/MENU
2
zX REC/PAUSE
3
Bx PLAY/STOP(ENTER)
4
– .
5
x STOP
6
> +
7
ERASE
8
HOLD-OFF
9
HOLD-ON
10
1
2
8
10
3
4
5
6
7
DIVIDE
REC
REW
STOP
FF
PLAY
DISPLAY
ERASE
VOL
HOLD
ON
9
OFF
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