Sony HCD-VX99 / MHC-VX99 Service Manual ▷ View online
13
[MC Test Mode]
• This mode is used to check operations of the respective sections
of Amplifier, Tuner, CD and Tape.
• This mode is used to check operations of the respective sections
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 , ENTER and DISC 3
simultaneously.
simultaneously.
3.
A message “TEST MODE” appears on the FL display tube.
4
When f (CURSOR UP) button is pressed, GEQ increases to
its maximum and a message “GEQ ALL MA” appears.
its maximum and a message “GEQ ALL MA” appears.
5.
When F (CURSOR DOWN) button is pressed, GEQ decreases
to its minimum and a message “GEQ ALL M1” appears.
to its minimum and a message “GEQ ALL M1” appears.
6.
When g (CURSOR LEFT) or G (CURSOR RIGHT) button
is pressed, GEQ is set to flat and a message “GEQ FLAT”
appears.
is pressed, 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 the EDIT button is pressed, 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 SKIP EX-
CHANGE and OPEN/CLOSE cannot be accepted. (It means
that the tray motor and the turntable motor are disabled of their
operation.)
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 SKIP EX-
CHANGE and OPEN/CLOSE 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 Shuttle knob, 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 CD SYNC HI-DUB Button is press during playback
of Deck B, either normal speed or high speed can be selected
by this button.
by this button.
14. Select the desired loop by pressing the PLAY MODE button.
Insert a test tape AMS-110A or AMS-RO to Deck A.
15. Press the SPECTRUM 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.
14
[Aging Mode]
This mode can be used for operation check of CD section and tape deck section.
• If an error occurred:
This mode can be used for operation check of CD section and tape deck section.
• 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 , ENTER , and
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 , ENTER , and
DISC SKIP/EX-CHANGE simultaneously.
4) Aging operations of CD and tape are started at the same time.
5) To exit the aging mode, perform [MC Cold Reset].
5) To exit the aging mode, perform [MC Cold Reset].
3. Aging Mode in CD section
1) Display state
• No error occurs
1) Display state
• No error occurs
Note:
[*][*][*][*] : Number of aging operations
[*][*][*][*] : Number of aging operations
Error display
E
** s ## $$ %%
1 2 3 4 5
1 2 3 4 5
• When the buttons x , ENTER and DISC 1 are pressed simultaneously, number of time of the mechanism error and the NO DISC error
can be checked.
Display:
Display:
EMC**EDC**
**:
Number of times of error (Maximum three times)
EMC: Mechanism error
EDC: NO DISC error
EDC: NO DISC error
• When aging operation is complete, be sure to perform the MC Cold Reset to reset the error history.
D: No disc error
01: FOCUS ERROR
02: GFS ERROR
03: SETUP ERROR
02: GFS ERROR
03: SETUP ERROR
01: NO DISC judgment without chucking retry
02: NO DISC judgment after chucking retry
02: NO DISC judgment after chucking retry
Status at the time of NO DISC judgment
(High order digits only)
1:
(High order digits only)
1:
STOP
2:
SETUP
3:
TOC READ
4:
ACCESS
5:
PLAY BACK
6:
PAUSE
7:
MANUAL SEARCH (PLAY)
8:
MANUAL SEARCH (PAUSE)
AGING[*][*][*][*]
1
**
2
s
3
##
4
$$
5
%%
M: Mechanism error
Don’t care
High order digits only
D: Stopped during closing due to problems other than mechanism.
E: Stopped during opening due to problems other than mechanism.
C: Stopped during chucking due to problems other than mechanism.
F: Stopped during EX-opening due to problems other than mechanism.
D: Stopped during closing due to problems other than mechanism.
E: Stopped during opening due to problems other than mechanism.
C: Stopped during chucking due to problems other than mechanism.
F: Stopped during EX-opening due to problems other than mechanism.
Emergency related errors (High order digits only)
1:
1:
Stopped during chuck-up
2:
Stopped during chuck-down
3:
Time out by EX-OPEN
5:
Time out by EX-CLOSE
The error No. 00 indicates the newest error. As the error No. increases, it means the older error.
When you want to retrieve the error history, press the PLAY MODE button in the case of mechanism error.
Or press the REPEAT button in the case of NO DISC error.
When you want to retrieve the error history, press the PLAY MODE button in the case of mechanism error.
Or press the REPEAT button in the case of NO DISC error.
Display
15
2) Operation during aging mode
In the aging mode, the program is executed in the following
sequence.
(1)
In the aging mode, the program is executed in the following
sequence.
(1)
The disc tray opens and closes.
(2)
The mechanism accesses DISC 2 and makes an attempt to
read TOC. However, since there are no discs, a message
“CD2 NO DISC” appears.
read TOC. However, since there are no discs, a message
“CD2 NO DISC” appears.
(3)
The mechanism accesses DISC 3 and a message “CD3 NO
DISC” appears.
DISC” appears.
(4)
The disc tray turns to select a disc1.
(5)
A disc is chucked.
(6)
TOC of disc is read.
(7)
The pickup accesses to the track 1, and playing 2 seconds.
(8)
The pickup accesses to the last track, and playing 2 seconds.
(9)
Every time when an aging operation of step 1 to step 8 is
complete, the display “AGING[*][*][*][*]” value increases
as the number of aging operations is counted up.
complete, the display “AGING[*][*][*][*]” value increases
as the number of aging operations is counted up.
(10) Returns to step 1.
3. Aging Mode in Tape Deck section
1) Display state
• No error occurs
1) Display state
• No error occurs
Display action now
• Error occurred
Display action last time
2) Operation during aging mode
In the aging mode, the program is executed in the following
sequence.
(1) Rewind is executed up to the top of tape A and B.
(2) A tape on FWD side is played for 2 minutes.
(3) FF is executed up to either made for 20 second or the end of
In the aging mode, the program is executed in the following
sequence.
(1) Rewind is executed up to the top of tape A and B.
(2) A tape on FWD side is played for 2 minutes.
(3) FF is executed up to either made for 20 second or the end of
tape.
(4) A tape is reversed, and the tape on REV side is played for 2
minutes.
(5) Rewind is executed up to the top of tape.
(6) Returns to step 2, and repeat steps from 2 to 5.
(6) Returns to step 2, and repeat steps from 2 to 5.
[Function Change Mode]
* elect either VIDEO or MD of the external FUNCTION input.
* elect either VIDEO or MD of the external FUNCTION input.
Procedure:
1.
1.
Turn on the power.
2.
Press the two buttons ENTER and ?/1 at the same time.
The main power is turned on and the other function of the
previous function is selected and displayed. “MD” or
“VIDEO”.
The main power is turned on and the other function of the
previous function is selected and displayed. “MD” or
“VIDEO”.
NO. Display action
Action contents
Final timing
1
TAPE A AG-1
Rewind the TAPE A, B
The top of tape
2
TAPE A AG-2
FWD play the TAPE A
2 minutes playing
3
TAPE A AG-3
F.F. the TAPE A
20 second FF or the end
of tape
4
TAPE A AG-4
REV play the TAPE A
2 minutes playing
5
TAPE A AG-5
Rewind the TAPE A
The top of tape
6
TAPE B AG-2
FWD play the TAPE B
2 minutes playing
7
TAPE B AG-3
F.F. the TAPE B
20 second FF or the end
of tape
8
TAPE B AG-4
REV play the TAPE B
2 minutes playing
9
TAPE B AG-5
Rewind the TAPE B
The top of tape
16
VIDEO CD COLOR-BARS MODE
On this mode, the data of the color-bars signal as a picture signal and the 1kHz sine wave signal as a sound signal are output by the
mechanism control microcomputer (IC502) for video CD signal check. When measurement of the voltage and waveform on the VIDEO
board, perform it in this mode.
For reference, the color-bars signal can be observed at J302 (VIDEO OUT) and the sound signal can be observed at J101 (VIDEO/MD
(AUDIO) OUT) using an oscilloscope.
1.
mechanism control microcomputer (IC502) for video CD signal check. When measurement of the voltage and waveform on the VIDEO
board, perform it in this mode.
For reference, the color-bars signal can be observed at J302 (VIDEO OUT) and the sound signal can be observed at J101 (VIDEO/MD
(AUDIO) OUT) using an oscilloscope.
1.
Connect the lead wire to both ends of the land of SL503 of the VIDEO board.
2.
Turn the power on. Press CD button to select CD.
3.
After 2 or 3 seconds later, connect the lead wire.
4.
After measuring, remove the lead wire connected.
[VIDEO BOARD] (SIDE A)
[VIDEO BOARD] (SIDE B)
SL501 SL502
IC507
IC505
CT503
SL503
TEST MODE
VIDEO
FREQUENCY
FREQUENCY
SL501
IC502
SL502
SL503
TEST
MODE
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