Sony ICD-B120 (serv.man2) Service Manual ▷ View online
5
ICD-B120
2-2. MAIN BOARD
3
4
5
MAIN board
S701
1
insulating sheet
2
screw
6
ICD-B120
3-3. BEEP Test
To enter the BEEP Test, press the [ERASE] button.
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.
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
[STOP] button and the [MENU/DISPLAY] button at the same time.
[STOP] button and the [MENU/DISPLAY] button at the same time.
3. Canceling the TEST MODE
The TEST MODE can be cancelled by turning off the power
(unplugging the power cord).
(unplugging the power cord).
4. Menu Key Designation
The menu has the five modes described below. The following keys
are assigned on the initial screen (version display).
are assigned on the initial screen (version display).
[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)
MENU/DISPLAY
LCD Test (All Off)
PLAY/STOP (ENTER) Gs
BEEP Test
ERASE
HQ-DSP LOOP
REC/PAUSE zS
SP-DSP LOOP
– l
LP-DSP LOOP
+ L
RESTMENU Test
DIVIDE
Initial Display from each mode
STOP s
3-1. Initial Display in TEST MODE
LCD indications (memory and CPU version) when TEST MODE
is entered:
is entered:
SECTION 3
TEST MODE
3-2. LCD Test
To enter the LCD Test, press the [MENU/DISPLAY] 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.
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 [STOP] button to return to the initial screen (memory and
CPU version display).
CPU version display).
128
B1.20
Top:Memory capacity
(128-128 MB)
(32-32MB)
(16-16MB)
(128-128 MB)
(32-32MB)
(16-16MB)
Bottom:CPU versions
ALL ON
ALL OFF
MENU/DISPLAY
Switch between
the modes.
the modes.
BEEP
Beep:Frequency 1.3kHz only
Press the [STOP] button to return to the initial screen (memory and
CPU version).
CPU version).
3-4. 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 is in the ON position.
The sensitivity L is displayed when HOLD is in the OFF position.
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 is in the ON position.
The sensitivity L is displayed when HOLD is in the OFF position.
REC/PAUSE
zS
LOOP
SP
HQ
l
LOOP
LP
L
LOOP
To change the DSP LOOP test mode, press the [STOP] button, then
select the [REC/PAUSE] button, – l button, or + L button.
In a DSP Test mode, to select another DSP Test mode and to select
the other sensitivity, the [STOP] button also has to be pressed.
select the [REC/PAUSE] button, – l button, or + L button.
In a DSP Test mode, to select another DSP Test mode and to select
the other sensitivity, the [STOP] button also has to be pressed.
7
ICD-B120
LOOP
Sensitivity H
Sensitivity L
!H
HOLD
ON
LOOP
!L
HOLD
OFF
128
B1.20
1
r
Press DIVIDE button.
Indication after DIVIDE
button is pressed.
button is pressed.
Indication after MENU/DISPLAY
button is pressed.
button is pressed.
Indication after 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".
2
r
3
：
：
：
：
：
9
r
10
r
OK
To change the sensitivity again, press the [STOP] button and change
the [HOLD] switch.
In a DSP Test mode, changing the mode and changing the sensitivity
require the [STOP] button be pressed.
the [HOLD] switch.
In a DSP Test mode, changing the mode and changing the sensitivity
require the [STOP] button be pressed.
3-5. 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.
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”.
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”.
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).
(Do this before “OK” is shown.) To exit from this menu,
the power has to be turned off (battery to be removed).
8
ICD-B120
1
2
8
10
3
4
5
6
7
DIVIDE
REC
REW
STOP
FF
PLAY
MENU
ERASE
VOL
HOLD
ON
9
OFF
• Switches and corresponding LCD indications
Switch
Indication
DIVIDE
1
MENU/DISPLAY
2
REC/PAUSE zS
3
PLAY/STOP (ENTER) Gs
4
– l
5
STOP s
6
+ L
7
ERASE
8
HOLD OFF
9
HOLD ON
10
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