Sony HCD-ZX50MD Service Manual ▷ View online
25
3-15. CHASSIS (MOLD B) SECTION INSTALLATION
3-16. BD (MD) BOARD
3
three screws
(BVTP M2.6)
(BVTP M2.6)
2
Insert the gear (eject)
under the gear (LD
deceleration).
under the gear (LD
deceleration).
1
Insert the portion A of
chassis (mold B) section
into the portion B of
slider (selection).
chassis (mold B) section
into the portion B of
slider (selection).
gear (LD deceleration)
portion A
portion B of
slider (selection)
slider (selection)
M102
M101
M103
S102
2
Remove the solder
(Two portion)
2
Remove the solder
(Two portion)
2
Remove the solder
(Two portion)
2
Remove the solder
(Three portion)
1
connector
(CN104)
(CN104)
5
connector
(CN101)
(CN101)
3
two screws
(BTP 2
(BTP 2
×
6)
4
BD board
26
SECTION 4
TEST MODE
[MC Cold Reset]
• The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning
the set to the customer.
the set to the customer.
Procedure:
1. Press three buttons x , DISPLAY , and DISC 5 simultaneously.
2. The fluorescent indicator tube displays “COLD RESET” and
1. Press three buttons x , DISPLAY , and DISC 5 simultaneously.
2. The fluorescent indicator tube displays “COLD RESET” and
the set is reset.
[CD Ship Mode]
• This mode moves the optical pick-up to the position durable to
vibration. Use this mode when returning the set to the customer
after repair.
after repair.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Press V-GROOVE button and ?/1 button simultaneously.
3. After the “STANDBY” display blinks six times, a message
1. Press ?/1 button to turn the set ON.
2. Press V-GROOVE button and ?/1 button simultaneously.
3. After the “STANDBY” display blinks six times, a message
“LOCK” is displayed on the fluorescent indicator tube, and the
CD ship mode is set.
CD ship mode is set.
[MC Hot Reset]
• This mode resets the set with the preset data kept stored in the
memory. The hot reset mode functions same as if the power
cord is plugged in and out.
cord is plugged in and out.
Procedure:
1. Press three buttons x , DISPLAY , and DISC 1 simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously,
1. Press three buttons x , DISPLAY , and DISC 1 simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously,
and the set is reset.
[CD Service Mode]
• This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the optical pick-up.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Select the function “CD”.
3. Press three buttons x , DISPLAY , and Z 3 simultaneously.
4. The CD service mode is selected.
5. With the CD in stop status, turn the shuttle knob clockwise to
1. Press ?/1 button to turn the set ON.
2. Select the function “CD”.
3. Press three buttons x , DISPLAY , and Z 3 simultaneously.
4. The CD service mode is selected.
5. With the CD in stop status, turn the shuttle knob clockwise to
move the optical pick-up to outside track, or turn the shuttle
knob counter-clockwise to inside track.
knob counter-clockwise to inside track.
6. To exit from this mode, perform as follows:
1) Move the optical pick-up to the most inside track.
2) Press three buttons in the same manner as step 2.
2) Press three buttons in the same manner as step 2.
Note:
• Always move the optical pick-up to most inside track when exit-
ing from this mode. Otherwise, a disc will not be unloaded.
• Do not run the sled motor excessively, otherwise the gear can be
chipped.
[VACS ON/OFF Mode]
• This mode is used to switch ON and OFF the VACS (Variable
Attenuation Control System).
Procedure:
Press the PUSH ENTER and x buttons simultaneously. The
message “VACS OFF” or “VACS ON” appears.
Press the PUSH ENTER and x buttons simultaneously. The
message “VACS OFF” or “VACS ON” appears.
[Change-over of MW Tuner Step between 9 kHz and
10 kHz]
10 kHz]
• A step of MW channels can be changed over between 9 kHz
and 10 kHz.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Select the function “TUNER”, and press TUNER/BAND
1. Press ?/1 button to turn the set ON.
2. Select the function “TUNER”, and press TUNER/BAND
button to select the BAND “MW”.
3. Press ?/1 button to turn the set OFF.
4. Press MODE SELECT and ?/1 buttons simultaneously, and
4. Press MODE SELECT and ?/1 buttons simultaneously, and
the display of fluorescent indicator tube changes to “MW 9 k
STEP” or “MW 10 k STEP”, and thus the channel step is
changed over.
STEP” or “MW 10 k STEP”, and thus the channel step is
changed over.
[GC Test Mode]
• This mode is used to check the software version, FL tube, LED,
keyboard and VACS.
Procedure:
1. Press three buttons x , DISPLAY , and DISC 2 simultaneously.
2. LEDs and fluorescent indicator tube are all turned on.
3. When you want to enter the software version display mode,
1. Press three buttons x , DISPLAY , and DISC 2 simultaneously.
2. LEDs and fluorescent indicator tube are all turned on.
3. When you want to enter the software version display mode,
press DISC 1 . The model number and destination are displayed.
4. Each time DISC 1 is pressed, the display changes starting
from MC version, GC version, VC version, CD version, CDM
version, ST version, TC version, TA version, TM version and
BR version in this order, and returns to the model number and
destination display.
version, ST version, TC version, TA version, TM version and
BR version in this order, and returns to the model number and
destination display.
5. When DISC 3 is pressed while the version numbers are being
displayed except model number and destination, year, month
and day of the software creation appear. When DISC 3 is
pressed again, the display returns to the software version display.
When DISC 1 is pressed while year, month and day of the
software creation are being displayed, the year, month and day
of creation of the software versions are displayed in the same
order of version display.
and day of the software creation appear. When DISC 3 is
pressed again, the display returns to the software version display.
When DISC 1 is pressed while year, month and day of the
software creation are being displayed, the year, month and day
of creation of the software versions are displayed in the same
order of version display.
6. Press DISC 2 button, and the key check mode is activated.
7. In the key check mode, the fluorescent indicator tube displays
7. In the key check mode, the fluorescent indicator tube displays
“K
0
VO 0 STICK N”. Each time a button is pressed, “K 0”
value increases. However, once a button is pressed, it is no longer
taken into account.
“VO 0” value increases like 1, 2, 3 ... if rotating VOLUME
knob in “+” direction, or it decreases like 0, 9, 8 ... if rotating in
“–” direction.
Moving the stick changes the “STICK N” display.
When moved up
taken into account.
“VO 0” value increases like 1, 2, 3 ... if rotating VOLUME
knob in “+” direction, or it decreases like 0, 9, 8 ... if rotating in
“–” direction.
Moving the stick changes the “STICK N” display.
When moved up
: “STICK
R
”
When moved down
: “STICK
r
”
When moved to the left
: “STICK
T
”
When moved to the right : “STICK
t
”
8. Also when DISC 3 is pressed after lighting of all LEDs and FL
tubes, value of VACS appears.
9. To exit from this mode, press three buttons in the same manner
as step 1, or disconnect the power cord.
27
[MC Test Mode]
• This mode is used to check operations of the respective sections
of Amplifier, Tuner, CD and Tape.
of Amplifier, Tuner, CD and Tape.
Procedure:
1.
1.
Press the ?/1 button to turn on the set.
2.
Press the three buttons of x , DISPLAY and DISC 3
simultaneously.
simultaneously.
3.
A message “TEST MODE” appears on the FL display tube.
4
When f (STIC UP) button is pressed, GEQ increases to its
maximum and a message “GEQ MAX” appears.
maximum and a message “GEQ MAX” appears.
5.
When F (STIC DOWN) button is pressed, GEQ decreases to
its minimum and a message “GEQ MIN” appears.
its minimum and a message “GEQ MIN” appears.
6.
When g (STIC LEFT) or G (STIC RIGHT) button is pressed,
GEQ is set to flat and a message “GEQ FLAT” appears.
GEQ is set to flat and a message “GEQ FLAT” appears.
7.
When the VOLUME control knob is turned clockwise even
slightly, the sound volume increases to its maximum and a
message “VOLUME MAX” appears for two seconds, then the
display returns to the original display.
slightly, the sound volume increases to its maximum and a
message “VOLUME MAX” appears for two seconds, then the
display returns to the original display.
8.
When the VOLUME control knob is turned counter-clockwise
even slightly, the sound volume decreases to its minimum and
a message “VOLUME MIN” appears for two seconds, then
the display returns to the original display.
even slightly, the sound volume decreases to its minimum and
a message “VOLUME MIN” appears for two seconds, then
the display returns to the original display.
9.
In the test mode, the default-preset channel is called even when
the TUNER is selected and an attempt is made to call the preset
channel that has been stored in memory, by operating the Shuttle
knob. (It means that the memory is cleared.)
the TUNER is selected and an attempt is made to call the preset
channel that has been stored in memory, by operating the Shuttle
knob. (It means that the memory is cleared.)
10. When CD is selected and press MODE SELECT , and press
PUSH ENTER when “Set up Mode” is displayed.
Press PUSH ENTER when “CD Set up?” is displayed.
Move the stick left and right to display “CD Edit Start?”, and
press PUSH ENTER , the disc that is being chucked at this
moment becomes the default setting. It means that the default
disc only is accessed when any other discs are selected even
though the display indication changes accordingly. At the same
time, the Z1 to Z5 cannot be accepted. (It means that the
tray motor and the turntable motor are disabled of their
operation.)
Press PUSH ENTER when “CD Set up?” is displayed.
Move the stick left and right to display “CD Edit Start?”, and
press PUSH ENTER , the disc that is being chucked at this
moment becomes the default setting. It means that the default
disc only is accessed when any other discs are selected even
though the display indication changes accordingly. At the same
time, the Z1 to Z5 cannot be accepted. (It means that the
tray motor and the turntable motor are disabled of their
operation.)
11. When a tape is inserted in Deck B and recording is started, the
input source function selects VIDEO automatically.
12. When x button is pressed to stop recording, the Tape (Deck)
B is selected and tape is rewound using the m button, tape
is rewound, tape is stops at around the record-starting position
and playback of the recorded portion of the tape is started. If
PAUSE is inserted even once during recording, tape is rewound
to the position around the PAUSE position and is played back.
is rewound, tape is stops at around the record-starting position
and playback of the recorded portion of the tape is started. If
PAUSE is inserted even once during recording, tape is rewound
to the position around the PAUSE position and is played back.
13. When the HI-SPEED CD-MD SYNC Button is press during
playback of Deck B, either normal speed or high speed can be
selected by this button.
selected by this button.
14. Select the desired loop by pressing MODE SELECT , and
press PUSH ENTER when “Set up Mode” is displayed.
Press PUSH ENTER when “CD Set up?” is displayed.
Move the stick left and right to display “Tape Set Up?”, and
press PUSH ENTER .
Press PUSH ENTER when “Direction Set Up?” is displayed.
Move the stick left and right to display “Cycle?”, and press
PUSH ENTER .
Insert a test tape AMS-110A or AMS-RO to Deck A.
Press PUSH ENTER when “CD Set up?” is displayed.
Move the stick left and right to display “Tape Set Up?”, and
press PUSH ENTER .
Press PUSH ENTER when “Direction Set Up?” is displayed.
Move the stick left and right to display “Cycle?”, and press
PUSH ENTER .
Insert a test tape AMS-110A or AMS-RO to Deck A.
15. Press the SYNC REC button to enter the AMS test mode.
16. After a tape is rewound first, the FF AMS is checked, and the
16. After a tape is rewound first, the FF AMS is checked, and the
mechanism is shut off after detecting the AMS signal twice.
17. Then the REW AMS is checked and the mechanism is shut off
after detecting the AMS signal twice.
18. When the check is complete, a message of either OK or NG
appears.
19. When you want to exit this mode, press the ?/1 button twice.
The cold reset is enforced at the same time.
28
[Aging Mode]
This mode can be used for operation check of CD section and tape deck section.
• If an error occurred:
• If an error occurred:
The aging operation stops and display status.
• If no error occurs:
The aging operation continues repeatedly.
1.
Operating method of Aging Mode
Turn on the main power and select “CD” of the function.
1) Set a disc in DISC1 tray. Select ALL DISC CONTINUE, and REPEAT OFF.
2) Load the tapes recording use into the decks A and B respectively.
3) Press three buttons x , DISPLAY , and DISC 4 simultaneously.
4) Aging operations of CD and tape are started at the same time.
1) Set a disc in DISC1 tray. Select ALL DISC CONTINUE, and REPEAT OFF.
2) Load the tapes recording use into the decks A and B respectively.
3) Press three buttons x , DISPLAY , and DISC 4 simultaneously.
4) Aging operations of CD and tape are started at the same time.
• Tape Deck
1.
1.
The tape in deck A is rewound. “TAPE A AG-1” is displayed.
2.
The FWD side of deck A is played for two minutes.
“TAPE A AG-2” is displayed.
“TAPE A AG-2” is displayed.
3.
The tape in deck A is fast forwarded. “TAPE A AG-3” is displayed. Fast forward is carried out for 20 seconds or to the tape end.
4.
The RVS side of deck A is played for two minutes.
“TAPE A AG-4” is displayed.
“TAPE A AG-4” is displayed.
5.
The tape in deck A is rewound. “TAPE A AG-5” is displayed.
6.
The FWD side of deck B is played for two minutes.
“TAPE B AG-2” is displayed.
“TAPE B AG-2” is displayed.
7.
The tape in deck B is fast forwarded. “TAPE B AG-3” is displayed. Fast forward is carried out for 20 seconds or to the tape end.
8.
The RVS side of deck B is played for two minutes.
“TAPE B AG-4” is displayed.
“TAPE B AG-4” is displayed.
9.
The tape in deck A is rewound. “TAPE A AG-5” is displayed.
10. Repeated from step 2.
• CD
1.
1.
The tray rotates.
2.
DISC 5 is chucked.
3.
The TOC is read.
4.
The first track is played for 3 seconds.
5.
The last track is played for 3 seconds.
6.
DISC 1 is open.
7.
DISC 1 is close.
8.
Repeated from step 2.
Click on the first or last page to see other HCD-ZX50MD service manuals if exist.