MMDD--CCDD11
&& LLAA--MMCC11
Minidisc Deck/CD Player
Effective : Janiary, 2005
S-0137
CONTENTS
1. SAFETY INFORMATION 2
2. Specification(MD-CD1) 3
3. Test Mode 5
4. Procedure for Adjistment SERVO(MD MECH) 9
5. Message Display glossary 20
6. Diassembling and Reassembling(MD MECHA) 22
7. Block Diagram 27
8. Level Diagram 28
9. Exploded Views and Parts List(MD-CD1) 32
10. PC Boards and Parts List(MD-CD1) 38
11. Included Accessories(MD-CD1) 43
12. Specification(LA-MC1) 44
13. The Connection Method(LA-MC1) 45
14. PC Boards and Parts List(LA-MC1) 50
15. Included Accessories(LA-MC1) 51
SERVICE MANUAL
INSTRUCTIONS FOR SERVICE PERSONNEL
BEFORE RETURNING APPLIANCE TO THE CUSTOMER, MAKE LEAKAGE-
CURRENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT.
1. SAFETY INFORMATION
TASCAM MD-CD1 & LA-MC1
This product has been designed and manufactured according to FDA regulations "title 21, CFR, chapter 1, subchapter J, based on the
Radiation Control for Health and Safety Act of 1968", and is classified as a class 1 laser product. There is no hazardous invisible laser
radiation
during operation because invisible laser radiation emitted inside of this product is completely confined in the protective housings.
The label required in this regulation is shown .
ºCAUTION
USE OF CONTROLS OR ADJUSTMENT OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN
HAZARDOUS RADIATION EXPOSURE.
MD Drive Type : KMS-260E
Optical pickup: Manufacturer : SONY Corporation
Laser output : 4.55 mW
Wavelength : 785+/-20nm
CD Drive Type : KSS-575B
Optical pickup: Manufacturer : SONY Corporation
Laser output : Less than 0.4mW on the objective lens.
Wavelength : 760-780nm
DTA
2. SPECIFICATIONS
TASCAM MD-CD1 & LA-MC1
MD deck
Type MiniDisc recorder
Discs MiniDisc format
Rec modes Stereo/Mono/LP2/LP4
Recording format Magnetic field modulation overwrite
Recording time 74 minutes (stereo), 148 minutes
(mono), 148 minutes (LP2), 296
minutes (LP4) when using a 74-
minute disc
Sampling frequency 44.1 kHz
Compression system ATRAC (Adaptive Transform
Acoustic Coding)
CD deck
Type Compact Disc player
Discs CD/CD-R/CD-RW
Formats Audio CD (CD-DA), MP3
Rated input/output
Analog line input (MD input)
Connectors RCA
Input level -10 dBV
Input impedance 10 kΩ
Analog line outputs
Connectors RCA
Out put level -10 dBV
Output impedance 570Ω
Headphones
Connectors standard stereo jack
Max. output level 20 mW + 20 mW
Load impedance 32Ω
Digital input TOS (EIAJ RC-5720)
Format IEC60958 Type II (S/PDIF)
Digital output TOS (EIAJ RC-5720)
Format IEC60958 Type II (S/PDIF)
Keyboard Mini DIN 6-pin
MD specifications
Frequency response 20 Hz to 20 kHz +/- 0.5 dB
S/N ratio > 98 dB (playback, A filter),
> 95 dB (recording, A filter)
Dynamic range > 98 dB (playback, A filter),
> 95 dB (recording, A filter)
Total harmonic distortion < 0.004% (playback),
< 0.006% (recording)
Channel separation > 90 dB (playback, at 1 kHz),
> 83 dB (recording, at 1 kHz)
CD specifications
Frequency response 20 Hz to 20 kHz +/- 0.5 dB
S/N ratio > 100 dB (A filter)
Dynamic range > 100 dB (A filter)
Total harmonic distortion < 0.004%
Channel separation > 90 dB (at 1 kHz)
Wow and flutter below measurable limits (less than
0.001%)
TASCAM MD-CD1 & LA-MC1
Unit specifications
Power USA/Canada 120 VAC, 60 Hz
U.K./Europe 230 VAC, 50 Hz
Australia 240 VAC, 50 Hz
Power consumption 18 W
Dimensions 483 x 94 x 308 mm
19 x 3.7 x 12.1 (in)
Weight 5.8 kg (12.8 lbs)
Operating temperature range Operating temperature range: 5 to
40 degrees C (41°F to 104°F)
Supplied accessories remote control unit (1)
AA batteries (2)
power cord (1)
rack-mounting kit (1)
owner's manual (1)
warranty (1)
For product improvement, specifications and external appearance
are subject to change without notice.
Due to product improvement, the actual unit may appear
differently than the illustrations in the operation manual.
Dimensional drawing
18 mm
308 mm
285 mm
5 mm
483 mm
465 mm
435 mm
76 mm
88 mm
94 mm
3. Test Mode
TASCAM MD-CD1 & LA-MC1
3-1. How to set the test mode enabled
While holding down the OPEN/CLOSE and EJECT keys, switch on
the power.
(You need to keep both keys held down until the display reads
"Test Mode".)
To turn the test mode off, switch off the power.
3-2. Test mode menu
When running in test mode, the center encoder is available for
selecting test items and confirming your selection.
The following items are available:
[DISPLAY CHK]
[KEY CHECK]
[ENCODER CHK]
[CONT SW CHK][
KEYBOARD CHK]
[RS-232C CHK]
[EEP CHECK]
[MD ADJUST]
This procedure is applicable for MD-CD system
microcomputer version 1.10 and above.
[VERSION UP]
[VERSION CHK]
When an item is selected and you press the CD STOP key, you
will go back to the test mode menu.
3-3. Test items explained
1) DISPLAY CHK
With each press of the DISPLAY key, the FL display tube shows
grids and characters as shown below, with LEDs being on or off:
To turn off this selection, press the CD STOP key.
1st stage: FL display tube and all LEDs turned off
2nd stage:
3rd stage:
4th stage:
TASCAM MD-CD1 & LA-MC1
5th stage:
6th stage:
7th stage: FL display tube turned on and all LEDs light up on CD
player
8th stage: FL display tube and all LEDs turned on
Press again the DISPLAY key to terminate DISPLAY CHK.
2) KEY CHECK
Press keys in sequence as the FL display tube shows.
Unless you sequence through all keys, you cannot quit this mode.
3) ENCODER CHK
The FL display tube shows how to operate which encoder in this
order:
(1)Rotate the center encoder counterclockwise over a distance
of 3 clicks.
(2)Rotate the center encoder clockwise over a distance of 3
clicks.
(3)Push the center encoder.
(4)Rotate the CD-side encoder counterclockwise over a
distance of 3 clicks.
(5)Rotate the CD-side encoder clockwise over a distance of 3
clicks.
(6)Push the CD-side encoder.
(7)Rotate the MD-side encoder counterclockwise over a
distance of 3 clicks.
(8)Rotate the MD-side encoder clockwise over a distance of 3
clicks.
(9)Push the MD-side encoder.
(10) Press the CD STOP key to quit this mode.
4) CONT SW CHK
This shows the current control switch position.
Set the control switch to ON and OFF to check to see if "CONT SW
ON" and "CONT SW OFF" are displayed, respectively.
TASCAM MD-CD1 & LA-MC1
5) KEYBOARD CHK
As with KEY CHECK, press keys as the FL display tube shows.
Unlike with KEY CHECK, you don't need to check all keys.
6) RS-232C CHK
This checks data send/receive through RS-232C using a loop jig.
To get the check process started, press the ENTER key when
"Data Send?" is displayed.
Depending on whether the check is successful or not, either of
the following will be displayed:
OK : "RS-232C Good"
NG : "Time Out!!"
NOTE: Before pressing the ENTER key, be sure to apply an RS-
232C level voltage to the Rx terminal of a loop jig.
7) EEP CHECK
(1)[DEFAULT JPN]
Initial setting of EEP ROM for Japan. For use before
shipment.
(2)[DEF PARA JPN]
Initial setting of EEP ROM for Japan. Total play and record
times not initialized.
(3)[DEFAULT US]
Initial setting of EEP ROM for other countries than Japan.
For use before shipment.
(4)[DEF PARA US]
Initial setting of EEP ROM for other countries than Japan.
Total play and record times not initialized.
(5)[CLR TIME CD]
Initialization of total CD play time only, regardless of
destination country. For use when CD drive is replaced in
servicing process.
(6)[CLR TIME MD]
Initialization of total MD play and record times only,
regardless of destination country. For use when MD
mechanism is replaced in servicing process.
8) MD ADJUST
This adjusts the servo of MD mechanism.
Adjustment items
The following adjustments and checks are provided.
(1) Temperature correcting offset adjustment
[TEMP ADJUST]
(2) Laser power adjustment [LDPWR ADJUST]
(3) Laser power check [LDPWR CHECK]
(4) EF balance adjustment [EFBAL ADJUST]
(5) Focus bias adjustment [FBIAS ADJUST]
(6) Focus bias check [FBIAS CHECK]
(7) Test play [CPLAY MODE]
(8) Test record [CREC MODE]
For details on how to adjust the servo of MD mechanism, refer to
"Procedure for adjusting servo of MD mechanism".
TASCAM MD-CD1 & LA-MC1
9) VERSION UP
This gets FLASH ROM updated.
Give a volume label "UPTATE" and a file name "FLASH.MOT" to the
update-from file and record this file on a disc. (For the file name,
"MDCD1_xxxx.MOT" is also available. We recommend entering
numerals in "xxxx".)
Press the ENTER key when "VERSION UP" is displayed. The tray
will automatically slide out ("Disc Set" is displayed). Place the disc
carrying the update-from file copy in the tray and press the
OPEN/CLOSE key to close the tray. (You can also manually close
the tray.)
The loaded disc is checked while "File Check" is displayed. When
the disk is identified as an update file, "Update?" is displayed.
Then press the ENTER key to get the update process started.
As the update process goes on, the display shows write sector
numbers of FLASH ROM, and when the process is over,
"Complete" is displayed.
After updated, recycle the power.
NOTE: Use the "Disc at once" function to create a disc for update.
10) VERSION CHK
As you rotate the center encoder, the following are displayed:
[SYS Ver xx.xx]
[CD Ver xx.xx]
[MD Ver xx.xx]
[BUILD xxxxx]
3-4. Switching off test mode
Switch off the power.
4.
PROCEDURE FOR ADJUSTING SERVO OF MD MECHANISM
TASCAM MD-CD1 & LA-MC1
This procedure is applicable for MD-CD system microcomputer
version 1.10 and above.
4-1. Requirements
º Measuring instrument
Oscilloscope : 100 MHz or higher
Laser power meter : Leader's LPM-8001
(or equivalent with a maximum of
10mW range)
Jitter meter for MD : Leader's LJM-1851
(or equivalent with a range of ™≈
Sigma 30ns)
ÚWe recommend using a jitter meter for accuracy in "Focus bias
adjustment", "Checking jitter in self-record/play of MO Discs",
and "Checking jitter in play of Pit Discs". If no jitter meter is
available, refer to C1 error rate displayed on the unit.
º Test disc
Test Disc MMD-111 (P/N 49001622-00 : MO disc for
adjustment and checking)
Test Disc MMD-211 (P/N 49001524-00 : Pit disc for
adjustment and checking 1)
SONY's MDW-74A or equivalent (Recordable blank disc)
º Entering test mode
While holding down the OPEN/CLOSE and EJECT keys, switch
on the power.
(You need to hold down both keys until "Test Mode" is
displayed.)
º Terminating test mode
Switch off the power.
º Selecting test mode options
Select options with the multi-jog and press the ENTER key to
confirm your selection. Press the CD STOP key to turn off your
selection.
The use of other specific keys is referred to where necessary.
º MD mechanism assembly
1) Remove the MD mechanism assembly from the unit and
place it at a spot favorable for adjustments (on a board
placed on the unit, for example).
2) Remove flap.
ÚA spot favorable for adjustments refers to a spot where it is
easy to insert the laser power meter's light receptacle so far as
to reach just above the pickup lens.
ÚThe flap can easily be removed by opening the leaf spring
outward which is located at the right side of the flap viewed
from the front.
TASCAM MD-CD1 & LA-MC1
4-2 .Test points
Warning
1. When the laser diode is emitting light, never take a look
at the pickup from directly above. If you do, there is the
danger of going blind.
2. Use a two-prong electrical plug for connection of
measuring instruments to a power outlet. A three-prong
plug should be converted to a two-prong plug.
3. The adjustment reference voltage is available at Vc So
avoid shorting Vc to ground. (Don't connect the GND
terminal of each instrument to Vc and ground or
chassis at the same time.)
4. Make adjustments described below only when the
pickup assembly or the control BLK PCB assembly are
replaced. Never make these adjustments in any other
cases.
5. Adjustments should be made in an environment where
the temperature is between 24 and 26 degrees
Centigrade.
TASCAM MD-CD1 & LA-MC1
4-3. Adjustments
º Temperature correcting offset adjustment ("TEMP ADJUST")
1) With the TEMP and GND terminals shorted with a jumper
wire, enter Test mode.
2) Using the multi-jog and the ENTER key, select "MD ADJUST"
∑ "TEMP ADJUST", and press the ENTER key to save data.
3) Switch off the power and remove the jumper wire from the
TEMP and GND terminals.
ÚThis adjustment should be made when the temperature inside
the unit is the same as the ambient temperature, that is,
immediately after applying power to the unit.
º Laser power adjustment ("LDPWR ADJUST")
When "LDPWR ADJUST" is displayed, press the ENTER key and
"LD Adjust x 1" is displayed. When "LD Adjust x 1" is displayed,
rotating the multi-jog allows you to select "LD Adjust x 4".
Normally, first make the x1 adjustment, then the x4
adjustment.
Making the x1 adjustment affects the x4 settings. Be sure to
make both the x1 and x4 adjustments.
Pressing the CD STOP key in the process of adjustment
interrupts the process, bringing you back to "MD ADJUST".
If you interrupt the process, re-do adjustment.
¤ 1X speed adjustment
When "LD Adjust x1" is displayed, press the ENTER key and
"1/2 Write ON?" is displayed.
1 1/2 Write adjustment (1X speed "1/2 Write ON?")
1) Set a laser power meter to 10mW range, and insert its
light receptacle so that it becomes above the pickup of
the MD mechanism assembly.
2) When "1/2 Write ON?" is displayed, press the ENTER key
and the laser starts emitting light. (The display changes to
read "1/2 Wr x1=xxx".)
3) Rotate the multi-jog so that the laser power meter
registers 3.2 mW.
4) When the meter registers the correct value, press the
ENTER key to save data and the laser stops emitting light.
(The display changes to read "Pit Read ON?")
∑
1
TASCAM MD-CD1 & LA-MC1
2 Pit Read adjustment (1X speed "Pit Read ON?")
1) Set the laser power meter to 1mW range, and insert its
light receptacle so that it becomes above the pickup of
the MD mechanism assembly.
2) When "Pit Read ON?" is displayed, press the ENTER key
and the laser starts emitting light. (The display changes to
read "Pit Read=xxx".)
3) Rotate the multi-jog so that the laser power meter
registers 0.66 mW.
4) When the meter registers the correct value, press the
ENTER key to save data and the laser stops emitting light.
(The display changes to read "Groove ON?")
3 Groove Read adjustment (1X speed "Groove ON?")
1) Set the laser power meter to 1mW range, and insert its
light receptacle so that it becomes above the pickup of
the MD mechanism assembly.
2) When "Groove ON?" is displayed, press the ENTER key
and the laser starts emitting light. (The display changes to
read "Groove=xxx".)
3) Rotate the multi-jog so that the laser power meter
registers 0.85 mW.
4) When the meter registers the correct value, press the
ENTER key to save data and the laser stops emitting light.
(The display changes to read "LD Adjust x4".)
¤ 4X Speed Adjustments
When "LD Adjust x4" is displayed, press the ENTER key and
"1/2 Write ON?" is displayed.
4 1/2 Write adjustment (4X speed "1/2 Write ON?")
1) Set the laser power meter to 10 mW range, and insert its
light receptacle so that it becomes above the pickup of
the MD mechanism assembly.
2) When "1/2 Write ON?" is displayed, press the ENTER key
and the laser starts emitting light. (The display changes to
read "1/2 Wr x4=xxx".)
3) Rotate the multi-jog so that the laser power meter
registers 4.0 mW.
4) When the meter registers the correct value, press the
ENTER key to save data and the laser stops emitting light.
(This brings you back to "LDPWR ADJUST".)
2
3
4
TASCAM MD-CD1 & LA-MC1
º Checking laser power ("LDPWR CHECK")
When "LDPWR CHECK" is displayed, press the ENTER key and
"Pit Read" is displayed. When "Pit Read" is displayed, rotating
the multi-jog selects "Write Level 1", "Groove Read", "1/2 Write
1", "Write Level 4", and "1/2 Write 4".
Pressing the CD STOP key in the process of check interrupts
the process, bringing you back to "MD ADJUST".
1
2
3
Caution:
To protect the laser diode, checking at each level should
be completed within 10 seconds.
1 Checking Pit Read (1X speed "Pit Read")
1) Set the laser power meter to 1mW range, and insert its
light receptacle so that it becomes above the pickup of
the MD mechanism assembly.
2) When "Pit Read" is displayed, press the ENTER key and
the laser starts emitting light. (The display changes to
read "Pit Read=xxx".)
3) Check to see that the laser power meter registers 0.66
mW or so.
4) Press the ENTER key and the laser stops to emit light.
(The display changes to read "Groove Read".)
2 Checking Groove Read (1X speed "Groove Read")
1) Set the laser power meter to 1mW range, and insert its
light receptacle so that it becomes above the pickup of
the MD mechanism assembly.
2) When "Groove Read" is displayed, press the ENTER key
and the laser starts emitting light. (The display changes to
read "Groove=xxx".)
3) Check to see that the laser power meter registers 0.85
mW or so.
4) Press the ENTER key and the laser stops to emit light.
(The display changes to read "Write Level 1".)
3 Checking Write (1X speed "Write Level 1")
1) Set the laser power meter to 10 mW range, and insert its
light receptacle so that it becomes above the pickup of
the MD mechanism assembly.
2) When "Write Level 1" is displayed, press the ENTER key
and the laser starts emitting light. (The display changes to
read "Write x1=xxx".)
3) Check to see that the laser power meter registers 6.5 mW
or so.
4) Press the ENTER key and the laser stops to emit light.
(The display changes to read "1/2 Write 1".)
TASCAM MD-CD1 & LA-MC1
4 Checking 1/2 Write (1X speed "1/2 Write 1")
1) Set the laser power meter to 10 mW range, and insert its
light receptacle so that it becomes above the pickup of
the MD mechanism assembly.
2) When "1/2 Write 1" is displayed, press the ENTER key and
the laser starts emitting light. (The display changes to
read "1/2 Wr x1=xxx".)
3) Check to see that the laser power meter registers 3.2 mW
or so.
4) Press the ENTER key and the laser stops to emit light.
(The display changes to read "Write Level 4".)
5 Checking Write (4X speed "Write Level 4")
1) Set the laser power meter to 10 mW range, and insert its
light receptacle so that it becomes above the pickup of
the MD mechanism assembly.
2) When "Write Level 4" is displayed, press the ENTER key
and the laser starts emitting light. (The display changes to
read "Write x 4=xxx".)
3) Check to see that the laser power meter registers 8.1 mW
or so.
4) Press the ENTER key and the laser stops to emit light.
(The display changes to read "1/2 Write 4".)
6 Checking 1/2 Write (4X speed "1/2 Write 4")
1) Set the laser power meter to 10 mW range, and insert its
light receptacle so that it becomes above the pickup of
the MD mechanism assembly.
2) When "1/2 Write 4" is displayed, press the ENTER key and
the laser starts emitting light. (The display changes to
read "1/2 Wr x4=xxx".)
3) Check to see that the laser power meter registers 4.0 mW
or so.
4) Press the ENTER key and the laser stops to emit light.
(This brings you back to "LDPWR CHECK".)
4
5
6
TASCAM MD-CD1 & LA-MC1
º EF balance adjustment ("EFBAL ADJUST")
Connect an oscilloscope's GND to the Vc terminal and the
probe to the EF terminal, and set the probe for DC coupling.
When "EFBAL ADJUST" is displayed, press the ENTER key and
"Rec Disc Set" is displayed.
When the EJECT key is pressed and a disc is loaded, the disc is
ejected.
In the process of adjustment, pressing the CD STOP key
interrupts the process and brings you back to "MD ADJUST".
If you interrupt the process, re-do adjustment.
Make each adjustment so that the A and B amplitudes are
identical as far as possible centered around Vc, as the
waveform below shows.
1
2
1
¤ 1X speed MO adjustment
1 MO-in-record adjustment (1X speed "EFB Write x1")
1) When "Rec Disc Set" is displayed, insert SONY MDW-74
or equivalent disc.
2) When the disc is loaded, press the ENTER key and "EFB
Write x 1" is displayed. If no disc is present, pressing the
ENTER key has no effect on the display. Also, the
following adjustments cannot be made properly if other
media than Recordable Discs are inserted or the disc is
write-protected.
3) When "EFB Write x1" is displayed, press the ENTER key
and "EFB=$xx WR 1" is displayed in several seconds.
4) Make adjustment by rotating the multi-jog.
5) After making adjustment for a proper value, press the
ENTER key to save data and complete the process. (The
display changes to read "EFB Groove 1".)
2 MO-in-play adjustment (1X speed "EFB Groovex 1")
1) When "EFB Groovex 1" is displayed as a result of
completing process 1, press the ENTER key and "
EFB=$xx GRV 1" is displayed in several seconds.
2) Rotate the multi-jog to make adjustment.
3) When adjustment is made for a proper value, press the
ENTER key to save data and complete the process. (The
display changes to read "EFB MO-TOCx 1".)
TASCAM MD-CD1 & LA-MC1
3 MO P-TOC adjustment (1X speed "EFB MO-TOCx 1")
1) When "EFB MO-TOCx 1" is displayed as a result of
completing process 2 , press the ENTER key and
"EFB=$xx M-P1" is displayed.
2) Rotate the multi-jog to make adjustment.
3) After making adjustment for a proper value, press the
ENTER key to save data and complete the process. (The
display changes to read "EFB Adjustx 4".)
¤ 4X speed MO adjustment
4 MO-in-record adjustment (4X speed "EFB Write x 4")
1) When "EFB Adjust x4" is displayed as a result of
completing process 3, press the ENTER key and "EFB
Write x4" is displayed.
2) When "EFB Write x4" is displayed, press the ENTER key
and "EFB=$xx WR 4" is displayed in several seconds.
3) Make adjustment by rotating the multi-jog.
4) After making adjustment for a proper value, press the
ENTER key to save data and complete the process. (The
display changes to read "EFB Groove x4".)
5 MO-in-play adjustment (4X speed "EFB Groovex 4")
1) When "EFB Groovex 4" is displayed as a result of
completing process 4 , press the ENTER key and
"EFB=$xx GRV 4" is displayed in several seconds.
2) Make adjustment by rotating the multi-jog.
3) After making adjustment for a proper value, press the
ENTER key to save data and complete the process (The
display changes to read "EFB MO-TOCx 4".)
6 MO P-TOC adjustment (4X speed "EFB MO-TOCx 4")
1) When "EFB MO-TOCx 4" is displayed as a result of
completing process 5 , press the ENTER key and
"EFB=$xx M-P 4" is displayed in several seconds.
2) Make adjustment by rotating the multi-jog.
3) After making adjustment for a proper value, press the
ENTER key to save data and complete the process. (The
display changes to read "Pit Disc Set".)
ÚWhen making adjustments 1 to 6 above, avoid ejecting the
disc.
3
2
4
3
5
4
6
5
1 6
TASCAM MD-CD1 & LA-MC1
¤ 1X speed Pit adjustment
7 Pit adjustment (1X speed "EFB Pit")
1) When "Pit Disc Set" is displayed, take out the Recordable
disc, and insert MMD-111 indtead.
2) When the disc is loaded, press the ENTER key and "EFB
Pit" is displayed. If no disc is present, pressing the ENTER
key has no effect on the display. Also, the following
adjustments cannot be made properly if other media than
Pit Discs are loaded.
3) When "EFB Pit" is displayed, press the ENTER key and
"EFB=$xx Pit" is displayed in several seconds.
4) Make adjustment by rotating the multi-jog.
5) After making adjustment for a proper value, press the
ENTER key to save data and complete the process. (This
brings you back to "EFBAL ADJUST".)
ÚAdjustments 1 to 7 above cannot be made half-way through
other processes. Make all of these adjustments in a single
pass.
º Focus bias adjustment ("FBIAS ADJUST")
The focus adjustment is made only for 1X speed.
Connect a jitter meter probe to the RF terminal.
If no jitter meter is available, make adjustment so that value C1
in the display matches what is shown within angle brackets.
But here is a difficulty: value C1 abruptly changes when
approaching an adjustment target point. So we recommend
using a jitter meter.
If you press the CD STOP key in the process of adjustment, the
process is interrupted, bringing you back to "MD ADJUST".
If you interrupt the process, re-do adjustment.
1 MO Disc adjustment
1) When "FBIAS ADJUST" is displayed, insert MMD-221.
2) When the disc is loaded, press the ENTER key and
"C1=xxx a=xx" is displayed in several seconds. If no disc
is present, pressing the ENTER key has no effect on the
display.
3) Rotate the multi-jog clockwise to make adjustment at
point "a" so that the jitter meter registers 30 ns (slightly
exceeded C1=<220>).
4) After making adjustment for a proper value, press the
ENTER key. (The display changes to read "C1=xxx b=xx".)
5) Rotate the multi-jog counterclockwise to make
adjustment at point "b" so that the jitter meter registers
30ns (slightly exceeded C1=<220>)
6) After making adjustment for a proper value, press the
ENTER key. (The display changes to read "C1=xxx c=xx".)
7) A value at point "c" is automatically computed and shown
on the display. (There is no adjustment at point "c".)
8) Press the ENTER key to save data and complete the
process. (This brings you back to "EFBIAS ADJUST".)
7
1 7 1 7
1
TASCAM MD-CD1 & LA-MC1
2 Pit Disc adjustment
1) When "FBIAS ADJUAST" is displayed as a result of
completing adjustment 1, take out MMD-221 and insert
MMD-111 instead.
2) Make adjustment at points "a" and "b" in a similar way as
in 1 (25 ns: slightly exceeded C1=<220>)
ÚMaking MO Disc adjustment affects the Pit Disc adjustment. Be
sure to make the Pit Disc adjustment after making the MO Disc
adjustment.
ÚIn the process of adjustment, the Track Number area in the
display shows Cluster Address in hexadecimals.
2
1
1
1
∑ ∑
Caution:
To protect the laser diode, recording should be completed
within 10 seconds.
º Checking MO Disc self-record
Connect the jitter meter probe to the RF terminal.
If no jitter meter is available, check value C1 displayed against
what is shown within angle brackets.
We recommend using a jitter meter.
If the CD STOP key is pressed in the process, the checking is
interrupted, bringing you back to "MD ADJUST".
1 1X speed check
1) Using the multi-jog and the ENTER key, select "MD
ADJUST" ∑ "CREC MODE" ∑ "CREC OUT x1" on the
display.
2) When "CREC OUT x1" is displayed, insert SONY MDW-74
or equivalent disc.
TASCAM MD-CD1 & LA-MC1
3) When the disc is loaded, press the ENTER key and
"C1=xxxx" is displayed in several seconds. (The PLAY and
REC LEDs turn on.) If no disc is present, pressing the
ENTER key has no effect on the display.
4) When about 10 seconds is over, press the MD STOP key
to complete the writing process. (This brings you back to
"CREC MODE".)
5) Using the multi-jog and the ENTER key, select "MD
ADJUST" ∑ "CPLAY MODE" ∑ "CPLAY OUT" on the
display.
6) When "CPLAY OUT" is displayed, press the ENTER key
and "C1=xxxx" is displayed in several seconds. (The
PLAY LED turns on.)
7) Check to see that the jitter meter registers 30 ns
(C1=<50>) or less.
8) Press the MD STOP key to stop play. (This brings you
back to "CPLAY MODE".)
2 4X speed check
1) Using the multi-jog and the ENTER key, select "MD
ADJUST" ∑ "CREC MODE" ∑ "CREC OUT x4" on the
display.
2) As in process 1, check to see that the jitter meter
registers 30 ns (C1=<50>) or less when data written to
the disc is played back.
ÚThe Track Number area in the display shows Cluster Address
in record/play in hexadecimals. (Record/play starts from
0x700.)
º Checking Pit Disc play
This check is made only for 1X speed.
Connect the jitter meter probe to the RF terminal.
If no jitter meter is available, check C1 value displayed against
what is shown within angle brackets. We recommend using a
jitter meter.
Pressing the CD STOP key in the process interrupts the
process, bringing you back to "MD ADJUST".
1) Using the multi-jog and the ENTER key, select "MD ADJUST"
∑ "CPLAY MODE" ∑ "CPLAY OUT" on the display.
2) When "CPLAY OUT" is displayed, insert MMD-111.
3) When the disc is loaded, press the ENTER key and
"C1=xxxx" is displayed in several seconds. (The PLAY LED
turns on.) If no disc is present, pressing the ENTER key has
no effect on the display.
4) Check to see that the jitter meter registers 30 ns (C1=<50>)
or less.
5) Press the MD STOP key to stop play. (This brings you back
to "CPLAY MODE".)
∑ ∑
2
∑ ∑
1
∑ ∑
5. MESSAGE DISPLAY GLOSSARY
TASCAM MD-CD1 & LA-MC1
5-1. Operation messages
5-2. Error Messages
Message Details / response(
Blank Disc
A blank recordable MD disc has been inserted.
New Disc!
A new recordable MD disc has been inserted.
Complete
Editing operation has been successfully completed.
Dubbing Wait
The unit is being readied for dubbing.
TOC Reading
The table of contents data is being read.
UTOC Writing
The user table of contents data is being written to the disc.
Now Editing
Editing operation is being performed.
Over Write
Overwrite recording mode is on.
Message Details / response
Disc Error!
"The disc has malfunctioned. Please replace with a new disc."
Disc Full!
No recording time remaining on the disc, so new recording is not possible.
Title Full!!
A title is full.
D-IN UNLOCK!
The digital input is not connected. Turn on the power of the equipment connected to DIGITAL IN.
Not Execute!
Editing cannot be completed due to MD system limitations.
Not Audio!
There is no audio signal from DIGITAL IN.
No Track!
There are no recorded tracks.
PGM Empty!
There is no program.
PGM Full!
No new programs can be created.
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