Sony HCD-VZ50MD Service Manual page 26

[MC Test Mode]
• This mode is used to check operations of the respective sections
of Amplifier, Tuner, CD and Tape.
Procedure:
Press the ?/1 button to turn on the set.
1.
Press the three buttons of x , DISPLAY and DISC 3
2.
simultaneously.
3. A message "TEST MODE" appears on the FL display tube.
4 When the multi-stick is moved up, GEQ increases to its
maximum and a message "GEQ MAX" appears.
5. When the multi-stick is moved down, GEQ decreases to its
minimum and a message "GEQ MIN" appears.
6. When the multi-stick is moved left or right, 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.
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.
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.)
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.)
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.
13. When the HIGH-SPEED CD-MD SYNC Button is press
during playback of Deck B, either normal speed or high speed
can be 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.
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
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.
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