– 25 –
MD-R2
• UTOC was read but total TNO and the number of characters of
NAME was 0?
• Focusing error was caused by shock during REC-PLAY.
• Although UTOC can be read but UTOC cannot be rewritten.
• Data of EEPROOM is not correct.
Error display
Errors
Corrective action
BLANK MD
DEFECT
TOC W ERROR
MD ERROR
• Perform recording to check that the disc
is recordable disc.
• Check that the disc is free from flaw,
dust, fingerprint and black spot. Check
for disc disalignment and run-out.
• Check that the record head contact is
normal. Check that there is no broken
wire between PWB and the recording
head.
• Once reset, and redo. If error occurs
persistently, replace EEPROM.
EXPLANATION OF MECHANISM ERROR
Error display
Errors
M E C H A _ E R R 1 _ *
Ejection failure
M E C H A _ E R R 2 _ *
Head-up failure
M E C H A _ E R R 3 _ *
Head-down failure
HINF (IC1401 97 PIN)
* = E Ejection completion position
< 1.3 V
* = MHorizontal midway position
> 3.06 V
* = L Load completed position
1.853~2.48 V
* = D Head-down position
1.3~1.853 V
E
2
-PROM (IC1402) writing procedure
1. Procedure to replace E
2
-PROM and to write the initial
value of microcomputer in E
2
-PROM
(1) Replace E
2
-PROM.
(2) Refer to the latest E
2
-PROM data list.
(3) Holding down the ENTER button and MD PLAY button,RESET
button, and start up the test mode.
(4) Indication of version.
[ t s m
e
]
E
2
-PROM version (c to z)
Microcomputer ROM version
Model code
(5) Press the ENTER button 7 times.
[ E E P R O M S E T ]
(6) Perform the operation shown in the "E
2
-PROM setting mode
chart", compare the indication with the E
2
-PROM data list, and
make a setting according to the E
2
-PROM data list, using JOG
key.
(7) Set the temperature reference value.
(Refer to "Temperature reference setting procedure".)
(8) The setting must conform to the E
2
-PROM data list.
(9) Turn off power supply to write in E
2
-PROM.
2. Temperature reference value setting procedure
(to be executed at room temperature within 21 to 29
°
C)
(1) Test mode stop state.
[ t s m
e
]
(2) Crrect temperature depending on ambient temperature according
to the following table.
An example: When ambient temperature is 22
°
C and meadured
temperature is 73H
Temperature setting = 73 H - 01 H
= 72 H
* When the measured temperature fluctuates between
two values, take lower one (if temperature fluctuates
between 73H and 72H, take 72H).
(3) Press the ENTER button 7 times.
[ E E P R O M S E T ]
(4) Press the MD PLAY button.
[ F O C U S ]
(5) Press the ENTER button 4 times.
[ T e m p ]
(6) Press once the MD PLAY button.
[ T E M P
]
: Measured temperature,
: Temperature setting
(7) Set temperature to the value determined above, using the
JOG button.
(8) Press the MD STOP button.
[ T e m p ]
Ambient temperature
(
°
C)
Temperature correction
12.2 ~ 15.8
-3
15.9 ~ 19.6
-2
19.7 ~ 23.2
-1
23.2 ~ 26.8
0
26.9 ~ 30.7
+1
30.8 ~ 34.3
+2
34.4 ~ 37.9
+3
