Sony ICF-CD830 / ICF-CD830L Service Manual ▷ View online
4
ICF-CD830/CD830L
SECTION 1
GENERAL
This section is extracted from
instruction manual.
instruction manual.
Setting the Clock
and Date
and Date
1
Plug in the clock radio.
The display will flash “AM 12:00” or “0:00”.
2
Press CLOCK for a few seconds.
You will hear a beep and the year will start to
flash in the display.
flash in the display.
3
Press TIME SET + or – until the correct
year appears in the display.
year appears in the display.
4
Press CLOCK once.
5
Repeat steps 3 and 4 to set the month,
day, hour, and minute.
day, hour, and minute.
After setting the minute, press CLOCK to start
the counting of the seconds, and you will
hear two short beeps.
the counting of the seconds, and you will
hear two short beeps.
• To display the year and date, press SNOOZE/
DATE/SLEEP OFF once for the date, and within
2 seconds press it again for the year. The
display shows the date or year for a few
seconds and then changes back to the current
time.
2 seconds press it again for the year. The
display shows the date or year for a few
seconds and then changes back to the current
time.
• To set the current time rapidly, hold down
TIME SET + or –.
• The clock system varies depending on the
model you own.
12-hour system: “AM 12:00” = midnight
24-hour system: “0:00” = midnight
12-hour system: “AM 12:00” = midnight
24-hour system: “0:00” = midnight
• In step 5, when you press CLOCK after the
minute setting to activate the clock, the seconds
start counting from zero.
start counting from zero.
To change the display to the
daylight saving time (summer time)
indication
daylight saving time (summer time)
indication
Press D.S.T./SUMMER T.
“
“
” is displayed and the time indication
changes to summer time.
To deactivate the summer time function, press
D.S.T./SUMMER T. again.
To deactivate the summer time function, press
D.S.T./SUMMER T. again.
FM wire antenna
Antenne fil FM
Antenne fil FM
AC power cord
Cordon d’alimentation
secteur
Cordon d’alimentation
secteur
ICF-CD830
ICF-CD830L
VOLUME
5
ICF-CD830/CD830L
2-1. UPPER CASE
Note:
Follow the disassembly procedure in the numerical order given.
SECTION 2
DISASSEMBLY
• The equipment can be removed using the following procedure.
2-2. KEY BOARD
4
Lid, CD
2
Panel (SP)
5
Screw (+P3
×
14)
3
Five screws (+P3
×
14)
7
Upper case
6
Connector
(CN371)
Pointer
1
Eight claws
Precaution during installation
When installing the upper case to the main section,
move the pointer to the left-most end as shown.
move the pointer to the left-most end as shown.
3
Key board
2
Hook
1
Five screws
(+P3
×
10)
4
Wire
Transformer board
Key board
Upper case
Set
Main chassis
Optical pick-up block (KSM-213CDM)
Ver 1.1 2001.08
6
ICF-CD830/CD830L
2-3. TRANSFORMER BOARD
2-4. MAIN CHASSIS
2
Two screws
(+P3
×
10)
1
Connector
(CN901)
3
Bracket (Trans)
4
Transformer board
Transformer board
Power cord
2-5. OPTICAL PICK-UP BLOCK (KSM-213CDM)
1
Two screws
(+P3
×
10)
2
Six screws
(+P3
×
10)
4
Main chassis
3
Connector
(CN901)
3
Optical pick-up block
(KSM-213CDM)
1
Two screws
(2.6
×
10)
2
Two screws
(2.6
×
10)
7
ICF-CD830/CD830L
SECTION 3
TEST MODE
3-1. LCD Test Mode
• The LCD test mode is initiated by turning off the main power once then
back on or by resetting the machine while IC401 pin-60 terminal is
connected to GND, or while depressing the D.S.T. , ALARM MODE and
RADIO keys simultaneously.
connected to GND, or while depressing the D.S.T. , ALARM MODE and
RADIO keys simultaneously.
• The LCD test mode operations are listed in the following table.
• When the machine enters the LCD test mode, the version number of the
• When the machine enters the LCD test mode, the version number of the
system control IC is displayed on the LCD.
• Pressing the SNOOZE/DATE/SLEEP OFF key turns on all segments of
LCD and LEDs.
• Pressing any key turns off the corresponding segment of the LCD.
Correspondence between the keys and segments of LCD are as follows.
KEY
D.S.T.
ALARM MODE
ALARM SET CD
ALARM SET BUZZER
ALARM SET RADIO
CLOCK
TIME SET –
TIME SET +
SEGMENT
s
ALARM CD RADIO BUZZER
ALARM-CD LED
ALARM-BUZZER LED
ALARM-RADIO LED
AM, PM,:
1a, 1b, 1c, 1d, 1e, 1f, 1g,
2a, 2b, 2c, 2d, 2e, 2f, 2g
3a, 3b, 3c, 3d, 3e, 3f, 3g,
4a, 4b, 4c, 4d, 4e, 4f, 4g
KEY
CD PLAY MODE
CD
RADIO
OFF
SNOOZE/DATE/
SLEEP OFF
SEGMENT
REP, 1, ALL, SHUFFLE,
, , ,
CD, H, TRACK
RADIO, SLEEP
5a, 5b, 5c, 5d, 5e, 5f, 5g,
6a, 6b, 6c, 6d, 6e, 6f, 6g
• After all segments of LCD and LEDs turn off, pressing the SNOOZE/DATE/SLEEP OFF key ends the LCD test mode and resets the
machine.
3-2. CD Test Mode
3-2-1. CD TEST-1 (AUTO)
• The CD TEST-1 (AUTO) mode is initiated by turning off the main power once then back on or by resetting the machine while IC401 pin-
59 terminal (RADIO LED) is connected to GND, or while depressing the D.S.T. , ALARM MODE and CD keys simultaneously.
• When the machine enters CD TEST-1 (AUTO) mode, it repeats the focus search until the focus becomes OK.
• After the focus becomes OK and the focus is automatically adjusted, rough servo is locked in and the adjustment value is displayed.
• After the focus becomes OK and the focus is automatically adjusted, rough servo is locked in and the adjustment value is displayed.
• The sled can be moved to the innermost track by pressing the . button. The sled can be moved to the outermost track by pressing
the > button.
• When the RADIO button is pressed, the machine enters the CLVA (servo ON) and the mute is turned OFF if data is read successfully.
When the following button is pressed, the corresponding operations are performed.
a) ALARM SET CD
Setting the 1 track jump
b) ALARM SET RADIO
Setting the 10 track jump
c) ALARM SET BUZZER
Setting the 100 track jump
Afterwards the desired track jump can be set by pressing the > or . button.
Afterwards the desired track jump can be set by pressing the > or . button.
d) ALARM MODE
TRACKING GAIN-UP
e) RADIO
Rough servo
• D.S.T. restarts CD TEST-1 (AUTO) mode from the focus automatic adjustment
• When the CD button is pressed then, the track jumps to the second session and the machine exits the CD TEST-1 (AUTO) mode.
• When the CD button is pressed then, the track jumps to the second session and the machine exits the CD TEST-1 (AUTO) mode.
3-2-2. CD TEST-2 (MANUAL)
• The CD TEST-2 (MANUAL) mode is initiated by turning off the main power once then back on or by resetting the machine while IC401
pin-58 terminal (CD LED) is connected to GND.
• When the machine enters CD TEST-2 (MANUAL) mode, it repeats the focus search until the focus becomes OK.
• After the focus becomes OK, the machine enters the rough servo.
• The sled can be moved to the innermost track by pressing the . button. The sled can be moved to the outermost track by pressing the
• After the focus becomes OK, the machine enters the rough servo.
• The sled can be moved to the innermost track by pressing the . button. The sled can be moved to the outermost track by pressing the
> button.
• When the RADIO button is pressed, the machine enters the CLVA (servo ON) and the mute is turned OFF if data is read successfully.
When the RADIO button is pressed again, the machine enters the rough servo.
• When the CD button is pressed then, the track jumps to the second session and the machine exits the CD TEST-2 (MANUAL) mode.
(LCD segment)
F-E BALANCE ADJUSTMENT
TRACKING GAIN ADJUSTMENT
FOCUS BIAS ADJUSTMENT
AM
CD
SHUFFLE
TRACK
a
1
2
3
4
5
6
f
g
b
c
e
d