DOWNLOAD Sony HCD-MD1DX / HCD-MD1EX (serv.man2) Service Manual ↓ Size: 5.69 MB | Pages: 94 in PDF or view online for FREE

Model
HCD-MD1DX HCD-MD1EX (serv.man2)
Pages
94
Size
5.69 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-md1dx-hcd-md1ex-sm2.pdf
Date

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.
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.
1
special screw
(M 1.7 
×
 1.4)
2
retainer (gear)
3
Set the shaft of gear (LA) to be at the
position in the figure.
slider ass’y
Install the part A of lever (head up)
to pass over the slider complete ass’y.
part A
Take care no to damage
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/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/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/u  button to turn the set ON.
2. Select the function “TAPE”.
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/u  button to turn the set ON.
2. Select the function “CD”.
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 
[VOLUME–]
 and 
[TUNER/BAND]
 simultaneously.
2. LEDs and fluorescent indicator tube are all turned on.
3. When the 
[FUNCTION]
 button is pressed, the fluorescent indicator tube lights up in the order of; partial lighting 1 
n partial lighting
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 
[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 
[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  
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)
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
Function
Changes parameters and modes
Proceeds onto the next step. Finalizes input.
Returns to previous step. Stops operations.
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