Sony HCD-MD1DX / HCD-MD1EX (serv.man2) Service Manual ▷ View online
– 17 –
1
stopper washer
2
shaft (shutter) A
shaft (shutter) A
shaft (shutter) B
3
shutter ass’y
shutter ass’y
hole B
hole A
When installing, install the shaft (shutter) A
into the hole as show in the figune before
installing the shaft (shutter) B into the hole B.
into the hole as show in the figune before
installing the shaft (shutter) B into the hole B.
OVER WRITE HEAD
SHUTTER ASS’Y
1
screw (P 1.7
×
6)
2
over write head
– 18 –
SLIDER COMPLETE ASS’Y
NOTE FOR INSTALLATION
•
SLIDER COMPLETE ASS’Y
claw
claw
4
Remove the slider complete ass’y
in the direction of arrow with putting
out of two claws.
in the direction of arrow with putting
out of two claws.
1
special screw
(M 1.7
(M 1.7
×
1.4)
2
retainer (gear)
3
Set the shaft of gear (LA) to be at the
position in the figure.
position in the figure.
slider ass’y
Install the part A of lever (head up)
to pass over the slider complete ass’y.
to pass over the slider complete ass’y.
part A
Take care no to damage
the detective switch.
the detective switch.
OK
NG
Ver. 1.3
– 19 –
Change-over of AM (MW) Tuner Step between 9 kHz and 10 kHz
• A step of AM (MW) channels can be changed over between 9 kHz and 10 kHz.
Procedure:
1. Press
1. Press
1/u button to turn the set ON.
2. Select the function “TUNER”, and press
[TUNER/BAND]
button to select the BAND “AM (MW)”.
3. Press
1/u button to turn the set OFF.
4. Press
[FUNCTION]
and
1/u buttons simultaneously, and the display of fluorescent indicator tube changes to “AM (MW) 9 kHz
STEP” or “AM (MW) 10 kHz STEP”, and thus the channel step is changed over.
Change-over of LW Tuner Step between 1 kHz and 3 kHz
• A step of LW channels can be changed over between 1 kHz and 3 kHz.
Procedure:
1. Press
1. Press
1/u button to turn the set ON.
2. Select the function “TUNER”, and press
[TUNER/BAND]
button to select the BAND “LW”.
3. Press
1/u button to turn the set OFF.
4. Press
[FUNCTION]
and
1/u buttons simultaneously, and the display of fluorescent indicator tube changes to “LW 1 kHz STEP” or
“LW 3 kHz STEP”, and thus the channel step is changed over.
ATT Change-over of TAPE input
Procedure:
1. Press
1. Press
1/u button to turn the set ON.
2. Select the function “TAPE”.
3. Press
3. Press
1/u button to turn the set OFF.
4. Press
1/u button while pressing
[FUNCTION]
button. The power is turned on and the display of fluorescent indicator tube changes
to “Attenuator ON” or “Attenuator OFF”, then ATT change-over of TAPE input is completed.
CD tracking balance display
Procedure:
1. Press
1. Press
1/u button to turn the set ON.
2. Select the function “CD”.
3. Press
3. Press
[TUNER/BAND]
button while pressing
p (CD) button.
4. The display of fluorescent indicator tube shows you the following message.
CD TR. BAL.
ππ
LED and Fluorescent Indicator Tube All Lit, Key Check Mode
Procedure:
1. Press two buttons
1. Press two buttons
[VOLUME–]
and
[TUNER/BAND]
simultaneously.
2. LEDs and fluorescent indicator tube are all turned on.
3. When the
3. When the
[FUNCTION]
button is pressed, the fluorescent indicator tube lights up in the order of; partial lighting 1
n partial lighting
2
n all lit n partial lighting 1 n.
When the
[VOLUME+/–]
button is pressed, the LED lighting pattern changes.
To end without switching to the key check mode, press the
1/u button to turn off the power.
4. Press
p (CD) button, and the key check mode is activated.
5. In the key check mode, the fluorescent indicator tube displays “KEY=0 JOG=0”. Each time a button is pressed, “KEY=” value
increases. However, once a button is pressed, it is no longer taken into account.
“JOG=” Value increases like 1, 2, 3 ... if press
“JOG=” Value increases like 1, 2, 3 ... if press
[VOLUME+]
button, or it decreases like 99, 98, 97 ... if press
[VOLUME–]
button.
6. To exit from this mode, press order all buttons (13 buttons), and press any button, or disconnect the power cord.
SUB CLOCK CHECK
Procedure:
1. Connect an oscilloscope to IC707 pin (¡ and ground of the MAIN board.
2. Press two buttons
1. Connect an oscilloscope to IC707 pin (¡ and ground of the MAIN board.
2. Press two buttons
[VOLUME–]
and
[REC]
simultaneously, and the fluorescent indicator tube displays “32.768 kHz (91)”.
3. To check the signal on oscilloscope becomes 32 kHz square wave.
4. Press
4. Press
1/u button to exit.
SECTION 4
SERVICE MODE
– 20 –
SECTION 5
TEST MODE
5-1.
PRECAUTIONS FOR USE OF TEST MODE
Recording Laser Emission Mode
• Continuous recording mode (CREC MODE)
• Traverse adjustment mode (EFBAL ADJUST)
• Laser power adjustment mode (LDPWR ADJUST)
• Laser power check mode (LDPWR CHECK)
• Traverse (MO) check (EF MO CHECK)
• Traverse (MO) adjustment (EF MO ADJUST)
• Traverse adjustment mode (EFBAL ADJUST)
• Laser power adjustment mode (LDPWR ADJUST)
• Laser power check mode (LDPWR CHECK)
• Traverse (MO) check (EF MO CHECK)
• Traverse (MO) adjustment (EF MO ADJUST)
5-2.
SETTING THE TEST MODE
With the power off, press the
=0 button while pressing the
[VOLUME–]
button.
5-3.
EXITING THE TEST MODE
Press the
p (MD) button while pressing the
[FUNCTION]
button. The STANDBY state will be set and the test mode will be cleared.
5-4.
BASIC OPERATIONS OF THE TEST MODE
All operations are performed using the
[VOLUME+/–]
button,
p (CD) button, and ^ (CD) button.
The functions of these buttons are as follows.
Function name
VOLUME +/– button
p (CD) button
^ (CD) button
^ (CD) button
Function
Changes parameters and modes
Proceeds onto the next step. Finalizes input.
Returns to previous step. Stops operations.
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