Sony HCD-VZ30AV Service Manual page 17

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[MC Test Mode]
• This mode is used to check operations of the respective sections
of Amplifier, Tuner, CD and Tape.
Procedure:
1. Press the three buttons of x , DISPLAY and DISC 3
simultaneously.
2. A message "TEST MODE" appears on the FL display tube.
3. When PUSH ENTRY (CURSOR UP) button is pressed, GEQ
increases to its maximum and a message "GEQ MAX" appears.
4. When PUSH ENTRY (CURSOR DOWN) button is pressed,
GEQ decreases to its minimum and a message "GEQ MIN"
appears.
5. When PUSH ENTRY (CURSOR LEFT) or PUSH ENTRY
(CURSOR RIGHT) button is pressed, GEQ is set to flat and a
message "GEQ FLAT" appears.
6. 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.
7. 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.
8. 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.)
9. When CD is selected. Press the MODE SELECT button and
press the ENTER button in the "Setup Mode". Move the
PUSH ENTRY to the right or left and press the ENTER button
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in the "CD Edit Start" mode.
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 DISC 1
button to DISC 5 button cannot be accepted. (It means that
the tray motor and the turntable motor are disabled of their
operation.)
10. When a tape is inserted in Deck B and recording is started, the
input source function selects VIDEO automatically.
11. 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.
12. When the HI-DUB Button is press during playback of Deck
B, either normal speed or high speed can be selected by this
button.
13. Select the desired loop as follows. Press the MODE SELECT
button and press the ENTER button in the "Setup Mode".
Move the PUSH ENTRY button to the right or left and press
the ENTER button in the "Direction setup". Move the PUSH
ENTRY button to the right or left and press ENTER at
"Cycle". Insert a test tape AMS-110A or AMS-RO to Deck A.
14. Press the CD SYNC button to enter the AMS test mode.
15. After a tape is rewound first, the FF AMS is checked, and the
mechanism is shut off after detecting the AMS signal twice.
16. Then the REW AMS is checked and the mechanism is shut off
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after detecting the AMS signal twice.
17. When the check is complete, a message of either OK or NG
appears.
18. 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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[Aging Mode]
During the aging mode, both the CD player and tape deck are
executed together.
• If an error occurs:
Aging stops, and the error state is displayed on the fluorescent
display tube.
• If no error occurs:
Aging is repeated.
Procedure:
Press the ?/1 button to turn the set ON.
1.
2. Load 10 minute tapes with unbent rec-proof tabs in decks A
and B.
3. Set CD on the DISC 1 table.
4. Set the CD mode REPEAT to OFF and PLAY MODE to ALL
DISCS.
(Press the MODE SELECT button and move the PUSH
ENTRY button to set these modes.)
5. Press the FUNCTION button to switch the function to "CD".
6. Press the three buttons x , DISPLAY , and DISC 4 button
simultaneously.
7. Aging starts.
To end aging, press the ?/1 button to turn the set OFF.
8.
Aging Sequence:
Aging is performed in the following sequence.
• Tape Deck
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.
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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.
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.
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.
9. The tape in deck B is rewound. "TAPE B AG-5" is displayed.
10. Repeated from step 2.
• CD
1. DISC 1 is chucked.
2. The TOC is read.
3. The first track is played for 3 seconds.
4. The last track is played for 3 seconds.
5. DISC 1 tray open and close.
6. Repeated from step 1.
• Display when ended abnormally
When the tape deck is abnormal:
The state when ended abnormally is displayed.
The contents of display are the same as that during aging.
When the CD player is abnormal: co
A message indicating that errors such as "CD MEC ERR" have
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occurred.
Check the error contents in the following error history display mode.
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0 5 8 2 9 9 4 2 8
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